The present disclosure discloses a method for calculating a skin factor for an oil and gas well based on resistivity logging and a related apparatus, wherein the method includes: acquiring resistivity log information and well test skin factor data of a target zone of an oil and gas field; establishing a skin factor calculation model according to the resistivity log information and the well test skin factor data; and calculating the skin factor of a well to be tested of the oil and gas field according to the skin factor calculation model.
G06F 30/17 - Conception mécanique paramétrique ou variationnelle
G01V 3/20 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant par propagation de courant électrique
This disclosure discloses a testing apparatus and method for casing damage while drilling and cementing quality evaluation, which addresses technical challenges such as low well-logging efficiency, poor testing accuracy, and the difficulty in evaluating the cementing quality at the outer interface of the cement sheath. The apparatus comprises a drill collar sub, an ultrasonic probe, and a plurality of ultrasonic transducers; the excitation frequency of the ultrasonic probe is adjustable through an external control module; the plurality of ultrasonic transducers has respective center frequencies that are different from others, and the center frequencies progressively increase.
The present disclosure belongs to the technical field of drilling and completion fluids for petroleum development, and relates to a breaker fluid, a preparation method therefor and the use thereof. The breaker fluid of the present disclosure comprises: a sustained-release acid, a brine stabilizer, a surfactant, and water. The breaker fluid provided by the present invention reacts only after being in contact with mud cake for a period of time, and has the advantage of good reservoir protection effect.
A single-trip efficient plugging tool (1000) integrating perforating, flushing, and cementing, and a use method therefor, aiming at solving the problem of perforating a poorly bonded casing section, flushing an annulus, and placing a cement plug in a single operation to achieve permanent plugging. The tool comprises an integrated high-pressure flushing and cement plug placement tool (100), a releasing tool (200), a well abandonment bridge plug setting tool (300), and a perforating tool (400) which are sequentially connected; the perforating tool (400) is used for perforating a poorly bonded casing section so as to crush a poorly bonded cement sheath (104) located in an annulus (103) between an inner casing (101) and an outer casing (102); the well abandonment bridge plug setting tool (300) is used for setting below the poorly bonded casing section; the releasing tool (200) is used for separating an upper tool string from the well abandonment bridge plug setting tool (300) when the well abandonment bridge plug setting tool (300) completes setting; the integrated high-pressure flushing and cement plug placement tool is used for flushing the poorly bonded casing section so as to discharge crushed cement and other debris from the annulus (103), and then injecting cement into the annulus for plugging.
The disclosure discloses a build-up device for ultra-short-radius sidetrack wells comprising a flexible drill string including a plurality of flexible subs. A central flow channel is arranged inside the flexible drill string a lower end of which is connected to a drill bit, and an end of the drill bit is provided with mud flow holes communicating with the central flow channel; a sealed chamber is fixed within the central flow channel near the drill bit, a wellbore inclination data acquisition unit and a pressure pulse generation unit are arranged within the sealed chamber; the acquisition unit is configured to acquire wellbore inclination data during a build-up process and generate control pulses, and the generation unit is configured to regulate the mud flow rate passing through the mud flow holes, thereby generating corresponding mud pressure pulses, so that a ground control system can decode build-up information.
The present disclosure belongs to the technical field of oil exploitation, and specifically relates to a temporary plugging fiber cluster, and a preparation method therefor, a usage method therefor and the use thereof. The temporary plugging fiber cluster provided by the present disclosure comprises degradable fiber filaments and a degradation promoter, wherein the degradable fiber filaments are wound around the outside of the degradation promoter.
C09K 8/516 - Compositions pour le plâtrage des parois de trous de forage, c.-à-d. compositions pour la consolidation temporaire des parois des trous de forage caractérisées par leur forme ou par la forme de leurs composants, p. ex. matériaux encapsulés
The present application disclosure a method A method and device for controlling a compass bird. The method includes: a main control single-chip microcomputer entering a first deep sleep mode when not processing a task; the main control single-chip microcomputer switching from the first deep sleep mode to a first working mode after receiving an external interrupt signal; a peak detection circuit detecting whether there is a communication carrier signal; a data demodulation unit not starting if the peak detection circuit detects that there is no communication carrier signal; and the data demodulation unit starting to demodulate the communication carrier signal if the peak detection circuit detects that there is the communication carrier signal, and a communication demodulation module sending a demodulated signal to the main control single-chip microcomputer.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
A rotary sidewall coring tool, comprising an electronic sub (1), a balance sub (2), a hydraulic control sub (3), a mechanical execution sub (4) and a rock core storage sub (5), wherein the mechanical execution sub (4) comprises a mechanical sub housing (41), a transmission device is provided in the mechanical sub housing (41), the transmission device is connected to a drill bit assembly, a side opening allowing the drill bit assembly to extend out is provided in the mechanical sub housing, the transmission device is configured to be driven by the driving device to cause the drill bit assembly to drill a stratum, break a rock core, retract and over-turn, and an axis of the drill bit assembly after overturning is parallel to that of the coring tool; a heat absorption unit (14) is further provided, such that the reliability of an electronic circuit is improved; and a reverse pushing arm (33) is additionally arranged, such that the coring tool is separated from a sidewall.
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
The present disclosure relates to a push-the-bit rotary steering device, which includes: an upper driving shaft and a lower driving shaft being coaxially provided and fixedly connected, the upper driving shaft being provided with a circuit control module and a hydraulic push module sequentially on the outer peripheral wall of the upper driving shaft, the lower driving shaft being provided with a gamma measurement module on the outer peripheral wall, the gamma measurement module being provided with a measurement control circuit and an orientation measurement module electrically connected to the measurement control circuit; and an electrical connection system, which includes an electrical connection component, a communication module and a cable. The measurement control circuit is connected to the electrical connection component, the electrical connection component is connected to the circuit control module, and the circuit control module is connected to the hydraulic push module through the communication module.
E21B 7/06 - Modification de la direction du trou de forage
E21B 47/013 - Dispositifs spécialement adaptés pour supporter des instruments de mesure sur des trépans de forage
E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage
The present disclosure relates to an ultrahigh-temperature electronic circuit framework structure for well logging, comprising a plurality of nipple structures. The plurality of nipple structures are respectively provided with a plurality of circuit boards and electronic devices; the plurality of nipple structures are sequentially aligned and fixedly connected to form a framework structure body; and one end of the framework structure body is provided with a wire harness fixing nut, and the other end of the framework structure body is provided with a joint, wherein an oil passage pipe cavity is provided in the framework structure body; an oil injection oil passage pipe cavity and an oil return oil passage pipe cavity communicated with each other are formed in the oil passage pipe cavity; an oil injection port of the oil injection oil passage pipe cavity and an oil return port of the oil return oil passage pipe cavity are both arranged on the joint; the connected ends of the oil injection oil passage pipe cavity and the oil return oil passage pipe cavity are arranged on the side close to the wire harness fixing nut; and the circuit boards and electronic devices are all arranged between the oil injection oil passage pipe cavity and the oil return oil passage pipe cavity.
A deflection device for ultra-short radius well sidetracking. The device comprises a flexible drill pipe, wherein a central flow channel is provided inside the flexible drill pipe; a drill bit (1) is connected to the lower end of the flexible drill pipe; a mud flow-through hole (2) in communication with the central flow channel is provided at an end of the drill bit (1); a sealed chamber is fixed in the central flow channel close to the drill bit; a well deflection data acquisition unit and a pressure pulse generation unit are provided in the sealed chamber; the well deflection data acquisition unit is configured to acquire well deflection data in a deflection process, so as to obtain a control pulse on the basis of the well deflection data; and the pressure pulse generation unit is configured to adjust, on the basis of the control pulse, the flow rate of mud passing through the mud flow-through hole, so as to generate a corresponding mud pressure pulse, such that the ground receives the mud pressure pulse and then decodes same to obtain deflection information.
A rotary steerable backup arm, comprising a backup arm body (30), wherein the outer surface of the backup arm body (30) is provided with a backup surface that is in contact with a stratum (6); in the process that the backup arm body (30) is in contact with the stratum (6), the backup surface of the outer surface of the backup arm body (30) first is in contact with the stratum (6), and the backup surface extends from one side of the backup arm body (30) to the other side of the backup arm body (30); the backup surface is provided with an anti-sticking structure, and the anti-sticking structure is used for forming a gap (5) between the backup surface and the stratum (6). Further comprised is a rotary steerable drilling system. According to the rotary steerable backup arm and the rotary steerable drilling system, the occurrence of backup failure caused by the backup surface being stuck in the stratum is reduced.
Disclosed in the present application are a resistivity logging-based oil-gas well skin factor calculation method and related apparatus. The method comprises: acquiring resistivity logging data and well testing skin factor data of an interval of interest of an oil-gas field; according to the resistivity logging data and the well testing skin factor data, establishing a skin factor calculation model; and, according to the skin factor calculation model, calculating a skin factor of a well to be logged of the oil-gas field.
A test device and a test method for while-drilling casing collapse and cementing quality evaluation, for use in solving the technical problems of low well logging efficiency, poor test accuracy, and difficulty in implementation of cementing quality evaluation on the external surface of a cement sheath. The test device for while-drilling casing collapse and cementing quality evaluation comprises a drill collar sub (1), an ultrasonic probe (2) and a plurality of ultrasonic transducers (3), wherein the excitation frequency of the ultrasonic probe (2) can be adjusted by means of an external control module, and the center frequencies of the plurality of ultrasonic transducers (3) are different and sequentially increase.
A resistivity real-time measurement apparatus for a stratum around a well in a packer well testing process, comprising packer well testing modules and a resistivity measurement module. Two packer well testing modules are symmetrically provided at both ends of the resistivity measurement module; each packer well testing module comprises a packer base (5), the packer base (5) is provided with a seat seal module and an extraction module, the seat seal module is expanded and then tightly attached to the inner wall of an oil well so that a closed annulus (13) is formed between the two seat seal modules, and the extraction module is used for extracting drilling fluid in the annulus (13); the resistivity measurement module comprises a measurement probe base (6), a measurement module is provided on the measurement probe base (6), and the measurement module is used for measuring variations of the resistivities of stratums in different depths from the well wall over time; and two packer bases (5) are respectively connected to both ends of the measurement probe base (6).
E21B 47/00 - Relevés dans les trous de forage ou dans les puits
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
18.
Logging image definition recognition method and device, medium, and electronic equipment
The present disclosure relates to the field of image definition recognition, and discloses a logging image definition recognition method and device, medium and electronic equipment. The method comprises: establishing a logging image sample library comprising a plurality of logging images; acquiring actual definition information corresponding to the respective logging images; acquiring a plurality of definitions corresponding to the respective logging images; determining target weights corresponding to the respective target image definition determination algorithms according to the plurality of definitions and the actual definition information corresponding to the respective logging images; and determining a definition of a target logging image by the respective target image definition determination algorithms and the target weights corresponding to the respective target image definition determination algorithms.
G06V 10/00 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos
G06F 16/51 - IndexationStructures de données à cet effetStructures de stockage
G06F 16/583 - Recherche caractérisée par l’utilisation de métadonnées, p. ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement utilisant des métadonnées provenant automatiquement du contenu
19.
Coring and sampling integrated sub and downhole instrument
A coring and sampling integrated sub, including an integrally formed base body, a probe module, a coring module and a hydraulic module. The probe module, the coring module and the hydraulic module are all mounted on the base body. The hydraulic module, the probe module and the coring module are sequentially arranged from top to bottom. An output end of the hydraulic module is configured to be connected to the probe module and the coring module, respectively. The hydraulic module is configured to provide telescopic power for the probe module, and provide power for movement, flipping, and pushing of the coring module. Also disclosed is a downhole instrument including the coring and sampling integrated sub.
E21B 25/10 - Moyens de retenue ou de sectionnement des carottes une fois formées
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
20.
ADJACENT WELL DETECTION APPARATUS, METHOD AND SYSTEM
An adjacent well detection apparatus, method and system. The adjacent well detection apparatus is arranged on a drill collar of a first well. The adjacent well detection apparatus includes a transmitting probe and receiving probes. The apparatus includes: the transmitting probe, configured to generate a primary magnetic field according to a bipolar transient pulse signal applied to the transmitting probe, wherein a change in the primary magnetic field can generate a second magnetic field on a sleeve of an adjacent second well; and the receiving probes, configured to generate an induced electromotive force according to the second magnetic field, wherein the induced electromotive force is used for acquiring relative distance information and orientation information of the adjacent well.
G01V 3/10 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection en utilisant des cadres inducteurs
E21B 47/0228 - Détermination de l'inclinaison ou de la direction du trou de forage, p. ex. à l'aide de géomagnétisme utilisant l'énergie électromagnétique ou des détecteurs y étant adaptés
A compass bird control method and apparatus. The method comprises: a main control single-chip microcomputer entering a first deep dormant state when same does not process work; after receiving an external interrupt signal, the main control single-chip microcomputer switching from the first deep dormant state to a first operation state; a peak detection circuit detecting whether there is a communication carrier signal; if no communication carrier signal is detected by the peak detection circuit, a data demodulation unit not being activated; and if a communication carrier signal is detected by the peak detection circuit, the data demodulation unit being activated to demodulate the communication carrier signal, and a communication demodulation module sending, to the main control single-chip microcomputer, a demodulation signal, which is obtained by means of demodulation.
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
22.
FLOW PATTERN REGULATOR FOR WATER-BASED DRILLING FLUID, AND PREPARATION METHOD THEREFOR
The present invention provides a flow pattern regulator for a water-based drilling fluid. The flow pattern regulator is prepared by carrying out a polymerization reaction on the following raw materials: 10-40% of a first monomer, 40-70% of a second monomer, 10-40% of a third monomer and 0.5-3% of a fourth monomer, wherein the first monomer is acrylamide, the second monomer is acrylic acid or sodium 2-acrylamido-2-methylpropanesulfonate, the third monomer is N-vinyl pyrrolidone, and the fourth monomer is sodium undecylenate, 1-undecylenamide mea, octadecyl dimethyl allyl ammonium chloride, 2-acrylamido hexadecyl sulfonic acid or divinyl benzene. The present invention further provides a preparation method for the flow pattern regulator for a water-based drilling fluid. The preparation method comprises preparing a reaction system, carrying out a polymerization reaction and drying, and crushing treatment. The flow pattern regulator for a water-based drilling fluid of the present invention has the advantages of temperature resistance and salt tolerance.
C08F 226/00 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et l'un au moins étant terminé par une liaison simple ou double à l'azote ou par un hétérocycle contenant de l'azote
A push-the-bit rotary steerable apparatus, comprising: an upper driving shaft (1) and a lower driving shaft (2), wherein the upper driving shaft and the lower driving shaft are coaxially arranged and fixedly connected, a circuit control module (3) and a hydraulic pushing module (4) are sequentially provided on the outer peripheral wall of the upper driving shaft, a gamma measurement module (5) is provided on the outer peripheral wall of the lower driving shaft, and the gamma measurement module is internally provided with a measurement control circuit (51) and an orientation measurement module (52) that is electrically connected to the measurement control circuit; and an electrical connection system, which comprises an electrical connection component (6), a communication module and cables, wherein the electrical connection component is arranged at connection ends of the upper driving shaft and the lower driving shaft, the communication module is arranged in the circuit control module and the hydraulic pushing module, the measurement control circuit is connected to the electrical connection component by means of a cable, the electrical connection component is connected to the circuit control module by means of a cable, and the circuit control module is connected to the hydraulic pushing module by means of the communication module.
E21B 7/06 - Modification de la direction du trou de forage
E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
An ocean bottom node data collection device and a method. The device comprises: a junction crossing module (11, 21) and a junction processing module (12, 22) that are electrically connected, the junction crossing module (11, 21) comprising at least one aviation connector, and at least one ocean bottom node being electrically connected to the junction crossing module (11, 21) by means of the at least one aviation connector; the junction crossing module (11, 21) is used for realizing charging management of the at least one ocean bottom node, and for acquiring seismic data and associated device information of the seismic data of the at least one ocean bottom node; the junction processing module (12, 22) is used for receiving the seismic data and the associated device information transmitted by the junction crossing module (11, 21), and in response to an upload instruction, packaging the seismic data and the associated device information and then uploading same to an external storage device.
A sensor module, including a main body shell and a sensing device provided in the main body shell; the sensing device includes a sensor, an upper cover plate, a lower cover plate and a circuit plate; the sensor is mounted on the circuit plate; the upper cover plate and the lower cover plate are respectively mounted on the upper and lower sides of the circuit plate, and are configured to support the main body shell and fix the circuit plate; an accommodation cavity for storing an insulating fluid is provided between the upper cover plate and the circuit plate, between the upper cover plate and the sensor, and between the lower cover plate and the circuit plate; and a first acoustic window is provided at a portion of the upper cover plate located above the sensor. Further disclosed are a sensor assembly and an acoustic logging tool.
E21B 47/017 - Protection des instruments de mesure
E21B 47/14 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques
A spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.
E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
G01B 21/02 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
27.
POLYMERIC MICROSPHERE WITH SURFACTANT WRAPPED THEREIN AND PREPARATION METHOD THEREFOR
The present invention provides a polymeric microsphere with a surfactant wrapped therein, comprising a polymeric microsphere and coconut diethanol amide wrapped therein. The present invention further provides a preparation method therefor, comprising: dispersing a first surfactant in an oil to form an oil phase; dissolving acrylic acid, acrylamide and a cross-linking agent in water to obtain a water phase; dividing the water phase into two parts, adding a first initiator to the first part of the water phase, adding a resulting solution to the oil phase for an emulsification reaction to obtain a reaction base solution; adding a second surfactant to the second part of the water phase, and adding a second initiator to obtain an aqueous monomer solution; and adding same to the reaction base solution for a reaction at a maintained temperature. According to the polymeric microsphere with a surfactant wrapped therein of the present invention, a microsphere is used as a functional carrier, and a surfactant is wrapped therein; moreover, the release and functioning of functional components in a deep stratum are controlled by means of an intelligent controlled-release technology, thereby achieving the efficient combined effects of "modifying-washing".
C08F 2/44 - Polymérisation en présence d'additifs, p. ex. plastifiants, matières colorantes, charges
C09K 8/536 - Compositions pour éviter, limiter ou éliminer les dépôts, p. ex. pour le nettoyage caractérisées par leur forme ou par la forme de leurs composants, p. ex. matériaux encapsulés
C09K 8/584 - Compositions pour les méthodes de récupération assistée pour l'extraction d'hydrocarbures, c.-à-d. pour améliorer la mobilité de l'huile, p. ex. fluides de déplacement caractérisées par l'utilisation de tensio-actifs spécifiques
28.
LIQUID LIGHTENING AGENT, PREPARATION THEREOF, AND APPLICATION THEREOF
The present application discloses a liquid lightening agent, a preparation thereof, and an application thereof. The liquid lightening agent comprises water, hollow microspheres, and a high molecular polymer, the weight ratio of the water, the hollow microspheres, and the high molecular polymer being (40-60):(26-56):(0.5-2). The lightening agent provided by the present application can reduce density, and is also a lightening material that can be added in liquid form. The liquefied addition of a lightening material is achieved, thereby implementing the flexible preparation of a low-density cement slurry, and providing convenience for the preparation of the low-density cement slurry on site. In addition, the lightening agent provided by the present application can be stored stably for a long time.
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
29.
METHOD FOR IDENTIFYING CLARITY OF WELL LOGGING IMAGE, APPARATUS, MEDIUM, AND ELECTRONIC DEVICE
The present disclosure relates to the field of image clarity identification, and disclosed within are a method for identifying the clarity of a well logging image, an apparatus, a medium, and an electronic device. The method comprises: establishing a well logging image sample library comprising a plurality of well logging images; obtaining actual clarity information corresponding to each well logging image; obtaining a plurality of clarities corresponding to each well logging image; determining a target weight corresponding to each target image clarity determination algorithm according to the actual clarity information and the plurality of clarities corresponding to each well logging image; and utilizing the target weight corresponding to each target image clarity determination algorithm and each target image clarity determination algorithm to determine the clarity of a target well logging image.
A coring and sampling integrated sub, comprising an integrally formed base body (100), a probe module (200), a coring module (300) and a hydraulic module (400). The probe module (200), the coring module (300) and the hydraulic module (400) are all mounted on the base body (100). The hydraulic module (400), the probe module (200) and the coring module (300) are sequentially arranged from top to bottom. An output end of the hydraulic module (400) is configured to be connected to the probe module (200) and the coring module (300), respectively. The hydraulic module (400) is configured to provide telescopic power for the probe module (200), and provide power for movement, flipping, and pushing of the coring module (300). Also disclosed is a downhole instrument comprising the coring and sampling integrated sub.
E21B 25/10 - Moyens de retenue ou de sectionnement des carottes une fois formées
E21B 49/02 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain
E21B 47/00 - Relevés dans les trous de forage ou dans les puits
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
E21B 17/00 - Tiges ou tubes de forageTrains de tiges souplesTiges d'entraînementMasses-tigesTiges de pompageTubagesColonnes de production
A coring device, comprising an electronic sub communicated with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing.
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
32.
Method, device and medium for acquiring logging parameters
A method, a device and a medium for acquiring logging parameters are provided, wherein the logging parameters include gas-bearing porosities, and the method includes: acquiring a two-dimensional nuclear magnetic logging analysis graph; determining a gas-bearing region from the two-dimensional nuclear magnetic logging analysis graph; and summing contour values of the gas-bearing region as a gas-bearing porosity. The device for acquiring logging parameters includes a processor and a computer readable storage medium, wherein instructions are stored in the computer readable storage medium, and the processor executes the instructions to perform the foregoing method for acquiring logging parameters. The medium for acquiring logging parameters stores computer executable instructions, which are used for executing the foregoing method for acquiring logging parameters.
G01V 3/32 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant par résonance magnétique électronique ou nucléaire
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
33.
Integrated logging instrument for coring and sampling
An integrated logging instrument for coring and sampling includes a downhole main body and a ground system. The downhole main body is connected with the ground system through a long cable. The downhole main body includes a coring and sampling mechanism, a power mechanism and an energy storage mechanism. The coring and sampling mechanism includes a coring assembly for drilling cores and a pushing and setting assembly for downhole fixation. The power mechanism is arranged at an upper end of the coring and sampling mechanism, and includes a motor, a piston structure and a pump body. The piston structure and the pump body are respectively arranged at two output ends of the motor. The piston structure is arranged to provide suction power. The pump body is arranged to provide hydraulic power. The energy storage mechanism is arranged at a lower end of the coring and sampling mechanism.
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
G01V 11/00 - Prospection ou détection par des méthodes combinant des techniques spécifiées dans les groupes
34.
Vibration detection apparatus applied to nuclear magnetic resonance while drilling instrument
A vibration detection apparatus applied to a nuclear magnetic resonance while drilling instrument, including a vibration table. The vibration table is configured to horizontally clamp the nuclear magnetic resonance while drilling instrument and further includes a graduated barrel that contains a detection liquid; the graduated barrel is configured to be suspended at the upper side of the vibration table and be spaced apart from the nuclear magnetic resonance while drilling instrument; when the vibration table performs vibration, the graduated barrel keeps stationary, and the nuclear magnetic resonance while drilling instrument preforms high-pressure emission and measurement by means of the graduated barrel. Therefore, the nuclear magnetic resonance while drilling instrument can obtain the echo signal of the graduated barrel during vibration, thereby more accurately detecting the performance thereof and shortening a detection time length.
G01R 33/34 - Détails de structure, p. ex. résonateurs
G01V 3/32 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant par résonance magnétique électronique ou nucléaire
35.
Hydraulic power system for downhole device and downhole device
A hydraulic power system for a downhole device, including a first motor, a first hydraulic pump, a second hydraulic pump, a first main oil circuit, a second main oil circuit, a switching control module and a first execution module. The first motor has a first output shaft which drives the first hydraulic pump and has an oil outlet connected to an input end of the first main oil circuit and a second output shaft which drives the second hydraulic pump and has an oil outlet connected to an input end of the second main oil circuit; the first execution module is connected to an output end of the first main oil circuit; displacement of the first hydraulic pump is smaller than that of the second hydraulic pump; and the switching control module is connected between the first main oil circuit and the second main oil circuit.
F15B 11/17 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs utilisant plusieurs pompes
F15B 11/028 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour régler la puissance
F15B 11/04 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse
F15B 20/00 - Dispositions propres à la sécurité pour systèmes de manœuvre utilisant les fluidesUtilisation des dispositifs de sécurité dans les systèmes de manœuvre utilisant des fluidesMesures d'urgence pour les systèmes de manœuvre utilisant des fluides
36.
ADJACENT WELL DETECTION APPARATUS, METHOD AND SYSTEM
Disclosed are an adjacent well detection apparatus, method and system. The adjacent well detection apparatus is arranged on a drill collar of a first well. The adjacent well detection apparatus comprises a transmitting probe and receiving probes. The apparatus comprises: the transmitting probe, configured to generate a primary magnetic field according to a bipolar transient pulse signal applied to the transmitting probe, wherein a change in the primary magnetic field can generate a second magnetic field on a sleeve of an adjacent second well; and the receiving probes, configured to generate an induced electromotive force according to the second magnetic field, wherein the induced electromotive force is used for acquiring relative distance information and orientation information of the adjacent well.
E21B 47/09 - Localisation ou détermination de la position d'objets dans les trous de forage ou dans les puitsIdentification des parties libres ou bloquées des tubes
E21B 47/02 - Détermination de l'inclinaison ou de la direction
G01V 3/28 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par la formation terrestre environnante ou par les dispositifs de détection en utilisant des bobines d'induction
37.
CALCULATION METHOD AND DEVICE FOR INTERVAL TRANSIT TIME, AND STORAGE MEDIUM
A calculation method for interval transit time. The method comprises: determining time domain boundaries of different types of wave signals in original signals of a pre-acquired target depth point (101); extracting target wave signals of the target depth point from the original signals of the target depth point according to the time domain boundaries of the different types of wave signals in the original signals of the target depth point (102); calculating frequency domain information and time domain information of the target wave signals (103); and calculating the interval transit time of the target wave signals at the target depth point by using the frequency domain information and the time domain information (104).
A calculation method for interval transit time. The method comprises: determining time domain boundaries of different types of wave signals in original signals of a pre-acquired target depth point (101); extracting target wave signals of the target depth point from the original signals of the target depth point according to the time domain boundaries of the different types of wave signals in the original signals of the target depth point (102); calculating frequency domain information and time domain information of the target wave signals (103); and calculating the interval transit time of the target wave signals at the target depth point by using the frequency domain information and the time domain information (104).
An azimuthal electromagnetic wave logging while drilling signal processing method and apparatus, and a storage medium. The method comprises: obtaining a logging signal collected by an azimuthal electromagnetic wave logging while drilling device; determining a fitting parameter of the logging signal by taking a trigonometric function as a basis function according to an orthogonal function theory; and determining, according to the fitting parameter, stratum information corresponding to the logging signal, the stratum information at least comprising one of the following: a phase geological signal, an amplitude geological signal, a phase anisotropic signal, and an amplitude anisotropic signal. The azimuthal electromagnetic wave logging while drilling device is a double-oblique coil device.
An azimuthal electromagnetic wave logging while drilling signal processing method and apparatus, and a storage medium. The method comprises: obtaining a logging signal collected by an azimuthal electromagnetic wave logging while drilling device; determining a fitting parameter of the logging signal by taking a trigonometric function as a basis function according to an orthogonal function theory; and determining, according to the fitting parameter, stratum information corresponding to the logging signal, the stratum information at least comprising one of the following: a phase geological signal, an amplitude geological signal, a phase anisotropic signal, and an amplitude anisotropic signal. The azimuthal electromagnetic wave logging while drilling device is a double-oblique coil device.
Provided are a method and system for measuring a composition and property of a formation fluid. The method includes: acquiring a measuring model used for measuring a composition and a property of a formation fluid; using a signal measured by a sensor on a downhole hydrocarbon formation tester in real-time as input data and inputting the input data into the measuring model; processing the input data by the measuring model; and directly outputting a processing result as data on the composition and the property of the real-time formation fluid, or parsing the data on the composition and the property of the real-time formation fluid according to the processing result.
A downhole oil level detection device includes a mounting housing (1) and a balance cylinder (2) installed on the mounting housing (1). The balance cylinder (2) includes a cylinder body (25) and a moving piston (21), a piston tension spring (22), a moving rod (23), a moving rod compression spring (24) and a displacement sensor (3) installed in the cylinder body (25). One end of the piston tension spring (22) is fixed to one end of the cylinder body (25), the other end thereof is connected to one side of the moving piston (21); one side of the moving piston (21) is also connected to one end of the moving rod compression spring (24), the other end of the moving rod compression spring (24) is connected to one end of the moving rod (23), the other end of the moving rod (23) is provided with the displacement sensor (3).
An unsteady-state seepage simulation method and system for a natural gas reservoir. The method comprises: obtaining a pre-established gas pool unsteady-state seepage equation based on a pore network model (S11); and calculating seepage field data of the preset pore network model according to the preset pore network model and the gas pool unsteady-state seepage equation (S12).
G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
G06F 30/28 - Optimisation, vérification ou simulation de l’objet conçu utilisant la dynamique des fluides, p. ex. les équations de Navier-Stokes ou la dynamique des fluides numérique [DFN]
A method and a system for simulating unsteady seepage of a natural gas reservoir are provided, which includes: acquiring a pre-built unsteady seepage equation of a gas reservoir based on a pore network model; and calculating seepage field data of the preset pore network model according to the preset pore network model and the unsteady seepage equation of the gas reservoir.
A coring device, comprising an electronic sub in communication with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing the position of the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing, and the rotating shaft is axially limited in the fixed housing; and an oil inlet is provided in an end face of the fixed housing close to the hydraulically controlled sub, and the hydraulically controlled sub injects hydraulic oil into the fixed housing through the oil inlet to drive the moving sleeve to move axially.
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
46.
MULTI-FREQUENCY MULTI-DIMENSIONAL NUCLEAR MAGNETIC LOGGING METHOD AND APPARATUS, AND STORAGE MEDIUM
A multi-frequency multi-dimensional nuclear magnetic logging method and apparatus, and a storage medium. Said method comprises: when a downhole nuclear magnetic logging instrument is in operation, said instrument operating at multiple different frequencies, the multiple different frequencies being two or more different frequencies; in multiple different acquisition time periods, acquiring echoes corresponding to the multiple different frequencies respectively, wherein echoes corresponding to a single frequency are acquired in a single acquisition time period, and when echoes corresponding to any one of the frequencies are acquired, frequencies, except the frequency at which the echoes are currently acquired, of the multiple different frequencies are all in a polarization waiting state; and according to the acquired echoes of the multiple frequencies, calculating a pre-determined spectrogram, the pre-determined spectrogram including one or more of the following: a D-T2 spectrogram, a T1-T2 spectrogram and a T1/T2-T2 spectrogram, wherein T1 refers to longitudinal relaxation time, T2 refers to transverse relaxation time, and D refers to diffusion coefficient.
E21B 47/00 - Relevés dans les trous de forage ou dans les puits
E21B 47/13 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage par énergie électromagnétique, p. ex. gammes de fréquence radio
G01V 3/32 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation spécialement adaptée au carottage fonctionnant par résonance magnétique électronique ou nucléaire
47.
SENSOR MODULE, SENSOR ASSEMBLY AND ACOUSTIC LOGGING TOOL
A sensor module, comprising a main body housing (11) and a sensing device provided in the main body housing; the sensing device comprises a sensor (12), an upper cover board (13), a lower cover board (15) and a circuit board (14); the sensor is mounted on the circuit board; the upper cover board and the lower cover board are respectively mounted on the upper and lower sides of the circuit board, and are configured to support the main body housing and fix the circuit board; an accommodation cavity (16) for storing an insulating fluid is provided between the upper cover board and the circuit board, between the upper cover board and the sensor, and between the lower cover board and the circuit board; and a first acoustic window (131) is provided at a portion of the upper cover board located above the sensor. Further disclosed are a sensor assembly and an acoustic logging tool.
E21B 47/18 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques à travers le fluide du puits
E21B 47/11 - Localisation des fuites, intrusions ou mouvements du fluide utilisant des traceursLocalisation des fuites, intrusions ou mouvements du fluide utilisant la radioactivité
48.
RESERVOIR-BASED MODELING METHOD AND DEVICE FOR PORE NETWORK MODEL
A reservoir-based modeling method and device for a pore network model applied in oil reservoir development. The method comprises: obtaining a reservoir image; obtaining a correlation length according to the reservoir image, and calculating a three-dimensional tensor convolution kernel according to the correlation length; obtaining a T2 spectrum of the reservoir, and obtaining pore-throat radius frequency distribution according to the T2 spectrum; forming an initial three-dimensional tensor data volume according to the pore-throat radius frequency distribution; generating, according to the three-dimensional tensor convolution kernel and the initial three-dimensional tensor data volume and by means of a convolutional neural network forward propagation algorithm, a three-dimensional tensor data volume conforming to the pore-throat radius frequency distribution of the reservoir; constructing a disordered spatial structure of a pore network model according to the initial three-dimensional tensor data volume; and establishing the pore network model according to the three-dimensional tensor data volume.
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
49.
CONVOLUTIONAL NEURAL NETWORK-BASED MODELING METHOD AND DEVICE FOR PORE NETWORK MODEL
A convolutional neural network-based modeling method and device for a pore network model. The method comprises: obtaining a nuclear magnetic image of a rock core obtained by means of nuclear magnetic resonance imaging; obtaining a correlation length according to the nuclear magnetic image, and calculating a three-dimensional tensor convolution kernel according to the correlation length; obtaining a T2 spectrum of the rock core obtained by means of nuclear magnetic resonance, and obtaining pore-throat radius frequency distribution according to the T2 spectrum; forming an initial three-dimensional tensor data volume according to the pore-throat radius frequency distribution; generating, according to the three-dimensional tensor convolution kernel and the initial three-dimensional tensor data volume and by using a convolutional neural network forward propagation algorithm, a three-dimensional tensor data volume conforming to the pore-throat radius frequency distribution of the rock core; constructing a disordered spatial structure of a pore network model according to the initial three-dimensional tensor data volume; and establishing the pore network model according to the three-dimensional tensor data volume conforming to the pore-throat radius frequency distribution of the rock core and the disordered space structure.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
50.
RESERVOIR-BASED MODELING METHOD AND DEVICE FOR PORE NETWORK MODEL
A reservoir-based modeling method and device for a pore network model. The method comprises: obtaining a reservoir image obtained by means of electrical imaging well logging; obtaining a correlation length according to the reservoir image, and calculating a three-dimensional tensor convolution kernel according to the correlation length; obtaining a T2 spectrum of the reservoir obtained by nuclear magnetic resonance well logging, and obtaining pore-throat radius frequency distribution according to the T2 spectrum; forming an initial three-dimensional tensor data volume according to the pore-throat radius frequency distribution; generating, according to the three-dimensional tensor convolution kernel and the initial three-dimensional tensor data volume and by means of a convolutional neural network forward propagation algorithm, a three-dimensional tensor data volume conforming to the pore-throat radius frequency distribution of the reservoir; constructing a disordered spatial structure of a pore network model according to the initial three-dimensional tensor data volume; and establishing the pore network model according to the three-dimensional tensor data volume conforming to the pore-throat radius frequency distribution of the reservoir and the disordered spatial structure.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
A solid-free and high-density completion fluid, comprising water, calcium bromide, zinc chloride and an imidazoline additive, wherein the mass ratio of the water, the calcium bromide, the zinc chloride and the imidazoline additive is 10:(22 to 24):(21 to 22):(0.1325 to 0.14). By compounding the calcium bromide and zinc chloride and adding an imidazoline additive, a high-temperature resistant, high-density and solid-free completion fluid which has a density greater than that of calcium bromide or zinc chloride when separately dissolved in water to reach saturation is prepared, such that the density of the completion fluid is (2.002-2.037)g/cm 3, the solution fluidity is good, the apparent viscosity is ≤ 19.50 mPa.s, the corrosion rate on 13 Cr steel test piece is ≦ 0.0333 mm/a at 200ºC under normal pressure, the clay anti-swelling rate is ≥ 87.0%, the solution is transparent and colorless, and the turbidity is ≤ 28.5NTU, thus providing strong science and technology support for the completion and workover of ultra-deep high-temperature oil and gas wells.
A control method and device, applied to a mud pulse generator. The mud pulse generator comprises a shear valve. The shear valve is composed of a stator and a rotor the radial direction cross-sections of which are fan-shaped. The control method comprises: acquiring the swing angle of the rotor relative to the stator in the shear valve; determining an interval to which the obtained swing angle belongs among a plurality of predetermined swing angle intervals; and controlling the rotor to move by using a control function corresponding to the interval to which the swing angle belongs, wherein the plurality of predetermined swing angle intervals are divided in advance according to the range of the swing angle, and each swing angle interval corresponds to a control function, respectively.
E21B 47/18 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques à travers le fluide du puits
53.
WELL LOGGING PARAMETER OBTAINING METHOD, APPARATUS, AND MEDIUM
Disclosed is a well logging parameter obtaining method. The well logging parameter comprises gas-bearing porosity. The well logging parameter obtaining method comprises: obtaining a two-dimensional nuclear magnetic resonance well logging analysis map; determining a gas-bearing area from the two-dimensional nuclear magnetic resonance well logging analysis map; and summing values of contour lines of the gas-bearing area as the gas-bearing porosity. Also disclosed are an obtaining apparatus using the method and an obtaining medium. A well logging parameter obtaining apparatus (1) comprises a processor (11) and a computer readable storage medium (12); the computer readable storage medium (12) stores instructions; when the instructions are executed by the processor (11), well logging parameters are obtained by means of the method. The well logging parameter obtaining medium stores computer executable instructions for executing the well logging parameter obtaining method.
A core detection device of a coring instrument includes a base body and a core switch mechanism provided on the base body. The base body is provided with a core channel communicated with a core barrel. The core switch mechanism includes a detection portion, a connecting rod assembly and a travel switch which are sequentially arranged and connected along a length direction of the coring instrument. The detection portion is rotatably installed on the base body and one end thereof is extended into the core channel, so that a core passing through the core channel pushes the detection portion to rotate. The connecting rod assembly can be pulled by the rotating detection portion to trigger the travel switch to operate. The core switch mechanism adopts a slider-connecting rod structure, and the kinematic pairs are mainly a sliding pair and a rotating pair.
G01N 1/08 - Dispositifs pour prélever des échantillons à l'état solide, p. ex. par coupe à l'outil impliquant un outil d'extraction, p. ex. mèche cylindrique creuse ou trépan
G01B 21/02 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur
E21B 25/00 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
55.
Connecting structure for drill collar of logging while drilling instrument and drill collar sub male and female joints
A connecting structure for a drill collar of a logging while drilling instrument and drill collar sub male and female joints are provided. The connecting structure for a drill collar of a logging while drilling instrument includes a male connecting joint and a female connecting joint matched with each other. The male connecting joint and the female connecting joint are rotatable relative to each other. Electrical passages are respectively arranged in the male and female connecting joints. One of the male and female connecting joints is provided with a multi-core coaxial electrical male connector connected with the electrical passage, and the other is correspondingly provided with a multi-core coaxial electrical female connector connected with the electrical passage. The male connecting joint is coaxially nested in the female connecting joint. The multi-core coaxial electrical male connector is inserted into and fitted to the multi-core coaxial electrical female connector.
H01R 24/38 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement
H01R 39/64 - Dispositifs pour le captage ininterrompu du courant
56.
MEASUREMENT-WHILE-DRILLING PROBE APPARATUS, ELECTRIC IMAGING-WHILE-DRILLING METHOD, AND ELECTRIC IMAGING-WHILE-DRILLING SYSTEM
Disclosed is a measurement-while-drilling probe apparatus. The measurement-while-drilling probe apparatus comprises: a drill collar (10) comprising a drill collar body (11) and an accommodating recess (12) provided on the outer wall of the drill collar body (11); a sealing sleeve (20) provided in the accommodating recess (12); a probe (30) provided in the accommodating recess (12) and penetrating the sealing sleeve (20); and a first elastic member (40) provided in the accommodating recess (12) and configured to enable the probe (30) to extend out of the accommodating recess (12) and to abut against a well wall. Also disclosed is an electric imaging-while-drilling method. The measurement-while-drilling probe apparatus is used in the method. The method comprises: the probe (30) abuts against the well wall by means of the first elastic member (40). Also disclosed is an electric imaging-while-drilling system, configured to implement the electric imaging-while-drilling method. The measurement-while-drilling probe apparatus can solve the problems in a high-resolution electric imaging-while-drilling instrument of poor accuracy of obtained drilling information and low imaging quality.
E21B 47/002 - Relevés dans les trous de forage ou dans les puits par inspection visuelle
E21B 47/12 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage
E21B 47/01 - Dispositifs pour supporter des instruments de mesure sur des trépans, des tubes, des tiges ou des câbles de forageProtection des instruments de mesure dans les trous de forage contre la chaleur, les chocs, la pression ou similaire
A radioactive source library (100), comprising: a first box body (200) and a second box body (300) disposed in the first box body (200), the second box body (300) comprising a source chamber (310) used to store a radioactive source, shielding layers being disposed between the source chamber (310) and the second box body (300); the shielding layers comprise a neutron shielding layer (600) and a gamma radiation shielding layer (500).
Disclosed is a coring and sampling integrated logging instrument, comprising an underground main body (4) and a ground system (1), wherein the underground main body (4) is connected to the ground system (1) by means of a long cable (3), and the underground main body (4) comprises a coring and sampling mechanism (10), a power mechanism (9) and an energy storage mechanism (45); the coring and sampling mechanism (10) comprises a coring assembly (15) for drilling a rock core and a pushing and setting assembly (12) for downhole fixation; the power mechanism (9) is arranged at the upper end of the coring and sampling mechanism (10); the power mechanism (9) comprises an electric motor (19), a piston structure (18) and a pump body (20); the piston structure (18) and the pump body (20) are arranged at two output ends of the electric motor (19), respectively; the piston structure (18) is arranged to provide suction power; the pump body (20) is arranged to provide hydraulic power; and the energy storage mechanism (45) is arranged at the lower end of the coring and sampling mechanism (10), the energy storage mechanism (45) is arranged to store pressure energy of the power mechanism and can serve as a temporary power source, and the energy storage mechanism (45) is arranged to provide temporary power for the underground main body (4) so as to ensure the safety of the underground main body (4).
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
59.
OIL-BASED DRILLING FLUID AND PREPARATION METHOD THEREFOR, AND PREPARATION METHOD FOR ANTI-SETTLING STABILIZER
An oil-based drilling fluid and a preparation method therefor, and a method for preparing an anti-settling stabilizer. The method for preparing an anti-settling stabilizer comprises: using lithium bentonite and attapulgite as raw materials, and using an organic cationic surfactant and a non-ionic amine-terminated polyether compound as modifiers to modify the raw materials to obtain the anti-settling stabilizer. On the basis of the sum of the volumes of a base oil and a water phase being 100ml, the oil-based drilling fluid comprises: 80ml to 95ml of the base oil, 5ml to 20ml of the water phase, 3g to 6g of an emulsifier, 0.5g to 2g of a wetting agent, 0.25g to 2g of a viscosity regulator, 2g to 8g of a fluid loss agent, 2g to 4g of an alkalinity regulator, 0.2g to 1g of the anti-settling stabilizer and a weighting agent. The oil-based drilling fluid of the present application has better anti-settling stability and rheological properties under high temperature and high pressure conditions.
A noise elimination method for a measurement while drilling (MWD) system, comprising: receiving an acquired mud signal and determining characteristic frequency of a periodic noise signal in the mud signal (301); performing a Fourier transform on the mud signal to obtain a mud signal in a frequency domain (302); and obtaining, according to the characteristic frequency of the periodic noise signal in the mud signal, the mud signal in the frequency domain, and a preset suppression factor, a mud frequency domain output signal with noise eliminated (303).
E21B 47/18 - Moyens pour la transmission de signaux de mesure ou signaux de commande du puits vers la surface, ou de la surface vers le puits, p. ex. pour la diagraphie pendant le forage utilisant des ondes acoustiques à travers le fluide du puits
61.
HYDRAULIC POWER SYSTEM FOR DOWNHOLE DEVICE AND DOWNHOLE DEVICE
A hydraulic power system for a downhole device, comprising: a first motor (10), a first hydraulic pump (11), a second hydraulic pump (12), a first main oil circuit A, a second main oil circuit B, a switching control module (13) and a first execution module (14). The first motor (10) has a first output shaft (101) and a second output shaft (102); the first output shaft (101) drives the first hydraulic pump (11), and an oil outlet of the first hydraulic pump (11) is connected to an input end of the first main oil circuit A; the second output shaft (102) drives the second hydraulic pump (12), and an oil outlet of the second hydraulic pump (12) is connected to an input end of the second main oil circuit B; the first execution module (14) is connected to an output end of the first main oil circuit A; the displacement of the first hydraulic pump (11) is smaller than that of the second hydraulic pump (12); and the switching control module (13) is connected between the first main oil circuit A and the second main oil circuit B, and is used to adjust the working pressure of the first main oil circuit A and the movement speed of the first execution module (14) by means of controlling the turning on and off of the first main oil circuit A and the second main oil circuit B. In addition, disclosed is a downhole device that comprises the foregoing hydraulic power system.
F15B 11/05 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour commander la vitesse spécialement adaptés pour maintenir une vitesse constante, p. ex. à compensation de pression, sensibles à la charge
F15B 11/028 - Systèmes comportant essentiellement des moyens particuliers pour commander la vitesse ou la puissance d'un organe de sortie pour régler la puissance
F15B 11/17 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs utilisant plusieurs pompes
A downhole oil level detection device, comprising a mounting housing (1) and a balance cylinder (2). The balance cylinder (2) is installed on the mounting housing (1); the balance cylinder (2) comprises a cylinder body (25) as well as a moving piston (21), a piston tension spring (22), a moving rod (23), a moving rod compression spring (24), and a displacement sensor (3) installed in the cylinder body (25); one end of the piston tension spring (22) is fixed to one end of the cylinder body (25), and the other end of the piston tension spring (22) is connected to one side of the moving piston (21); one side of the moving piston (21) is also connected to one end of the moving rod compression spring (24), the other end of the moving rod compression spring (24) is connected to one end of the moving rod (23), and the other end of the moving rod (23) is provided with the displacement sensor (3) for measuring the displacement of the moving piston (21); a limiting structure is provided on the other end of the moving rod (23), and a locking structure is also connected to one side of the moving piston (21); and the moving piston (21) drives the moving rod (23) to move by means of cooperation of the locking structure and the limiting structure.
A resistivity measurement polar plate, comprising a polar plate bracket (1), a composite polar plate (2), and an electrode assembly (3). The electrode assembly is mounted on the composite polar plate. The composite polar plate is mounted on the polar plate bracket. The composite polar plate comprises a first insulator (21), a second insulator (22), and an electrode contact (23). The first insulator is connected to the second insulator. The electrode contact penetrates the first insulator. One end of the electrode contact is buried in the second insulator, and the other end of the electrode contact is exposed for connection to the electrode assembly. Also disclosed is a manufacturing method for this resistivity measurement polar plate.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
64.
RESISTIVITY MEASUREMENT POLAR PLATE AND MANUFACTURING METHOD
A resistivity measurement polar plate, comprising a polar plate bracket (1), a composite polar plate (2), and an electrode assembly (3). The electrode assembly is mounted on the composite polar plate. The composite polar plate is mounted on the polar plate bracket. The composite polar plate comprises a first insulator (21), a second insulator (22), and an electrode contact (23). The first insulator is connected to the second insulator. The electrode contact penetrates the first insulator. One end of the electrode contact is buried in the second insulator, and the other end of the electrode contact is exposed for connection to the electrode assembly. Also disclosed is a manufacturing method for this resistivity measurement polar plate.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
A test system is disclosed. The test system comprises a main control module (10), one or more distributed control modules (20) connected to the main control module (10), and one or more test sub-systems (30) connected to the distributed control modules (20) in one-to-one correspondence. Each test sub-system (30) comprises a data acquisition module (301), a simulated load module (302), a signal simulation module (303), a drive module (304) under test, and a motor (305). The drive module (304) is configured to drive the motor (305) to operate. The distributed control module (20) is connected to each module in the test sub-system (30) connected to the distributed control module (20), and is configured to control operation of each module connected to the distributed control module (20). The data acquisition module (301) is configured to acquire measurement data of the drive module (304) and transmit the same to the distributed control module (20) connected to the data acquisition module (301). The simulated load module (302) is configured to transmit, according to a first instruction of the distributed control module (20) connected to the simulated load module (302), a torque load for the motor (305) driven by the drive module (304). The signal simulation module (303) is configured to output an analog pressure signal to the drive module (304) according to a second instruction of the distributed control module (20) connected to the signal simulation module (303).
E21B 47/00 - Relevés dans les trous de forage ou dans les puits
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
66.
VIBRATION DETECTION APPARATUS APPLIED TO NUCLEAR MAGNETIC RESONANCE WHILE DRILLING INSTRUMENT
A vibration detection apparatus applied to a nuclear magnetic resonance while drilling instrument (200), comprising a vibration table (100). The vibration table (100) is configured to horizontally clamp the nuclear magnetic resonance while drilling instrument (200) and further comprises a graduated barrel (300) that contains a detection liquid; the graduated barrel (300) is configured to be suspended at the upper side of the vibration table (100) and be spaced apart from the nuclear magnetic resonance while drilling instrument (200); when the vibration table (100) performs vibration, the graduated barrel (300) keeps stationary, and the nuclear magnetic resonance while drilling instrument (200) preforms high-pressure emission and measurement by means of the graduated barrel (300). Therefore, the nuclear magnetic resonance while drilling instrument (200) can obtain the echo signal of the graduated barrel (300) during vibration, thereby more accurately detecting the performance thereof and shortening a detection time length.
A sampling-by-pushing system includes a setting-by-pushing mechanism and a centralizing device. The setting-by-pushing mechanism is connected with the centralizing device through a connecting pipe, and is configured to be set and sealed in a borehole. The centralizing device includes a base body and a retractable support arm arranged on the base body. The support arm is configured to be in contact with the wall of the borehole so as to position the setting-by-pushing mechanism in the center of the borehole.
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
E21B 47/06 - Mesure de la température ou de la pression
Disclosed is a packer capable of preventing unexpected release. The packer comprises a body; the body is configured such that a pipe (100) can pass through the body; an anchoring assembly (300) for setting is provided on the body; the packer further comprises a limiting mechanism; the limiting mechanism is fixed on the body; one end of the limiting mechanism is clamped between the anchoring assembly (300) and the pipe (100); the limiting mechanism is used for locking the anchoring assembly (300) before the pipe (100) is lifted to a preset height so as to keep setting of the packer.
A method and system for measuring a composition and property of a formation fluid. The method comprises: obtaining a measuring model for measuring a composition and property of a formation fluid; using a signal measured by a sensor on a downhole hydrocarbon reservoir tester in real time as input data and inputting the input data into the measuring model; processing the input data by means of the measuring model; and directly outputting a processing result as data of the composition and property of the real-time formation fluid, or parsing the data of the composition and property of the real-time formation fluid according to the processing result. The system comprises a processor and a computer readable storage medium; the computer readable storage medium stores instructions; the processor executes the instructions to perform the foregoing method for measuring the composition and property of the formation fluid. The method and system can measure the composition and property of the formation fluid, and improve the efficiency and accuracy of well logging.
A horizontal-to-vertical drilling module for a deep well includes a fixed plate (1) provided with a first guide hole having a turning section (11), a core breaking section (13) and a moving section (12); a movable plate (2) movably mounted on one side of the fixed plate and provided with a second guide hole having a turning driving section (21), a core breaking driving section (23) and a moving driving section (22), the projection of the first guide hole on the movable plate intersecting with the second guide hole; a coring module (3) positioned at the other side of the fixed plate and provided with a moving column (31) on the side facing the fixed plate; and a moving slider (4) having an open groove (41), the moving slider being installed in the first guide hole and rotatably connected to the coring module.
E21B 25/10 - Moyens de retenue ou de sectionnement des carottes une fois formées
E21B 49/02 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain
71.
CONNECTING STRUCTURE FOR DRILL COLLAR OF MEASUREMENT-WHILE-DRILLING INSTRUMENT, AND MALE AND FEMALE CONNECTORS FOR DRILL COLLAR SUB
A connecting structure for a drill collar of a measurement-while-drilling instrument, and male and female connectors for a drill collar sub. The connecting structure for a drill collar of a measurement-while-drilling instrument comprises a male butt connector (1) and a female butt connector (2) matching each other. The male butt connector (1) and the female butt connector (2) are rotatable with respect to each other. Electric passages (31, 32) are formed in the male butt connector (1) and the female butt connector (2), respectively. One of the male butt connector (1) and the female butt connector (2) is provided with a multicore coaxial electric male connector (5) connected to the electric passage (31, 32), and the other is correspondingly provided with a multicore coaxial electric female connector (4) connected to the electric passage (31, 32). The male butt connector (1) is coaxially sleeved in the female butt connector (2). The multicore coaxial electric male connector (5) matches the multicore coaxial electric female connector (4) by means of insertion.
H01R 24/38 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement
72.
HORIZONTAL ROTATION AND VERTICAL DRILLING MODULE FOR DEEP WELL
A horizontal rotation and vertical drilling module for a deep well, comprising: a fixing plate (1) on which a first guide hole is provided, the first guide hole having a turnover section (11), a movement section (12), and a core folding section (13), wherein the movement section is located between the turnover section and the core folding section; a movable plate (2) that is movably mounted on one side of the fixing plate and is provided with a second guide hole, the second guide hole having a turnover driving section (21), a movement driving section (22), and a core folding driving section (23), wherein the movement driving section is located between the turnover driving section and the core folding driving section, and a projection of the first guide hole on the movable plate is intersected with the second guide hole; a coring module (3) located on the other side of the fixing plate, and a moving protrusion column (31) being provided on a side surface, facing the fixed plate, of the coring module, wherein the moving protrusion column penetrates through the first guide hole and extends into the second guide hole; and a movement sliding block (4) having an open slot (41), mounted in the first guide hole, and rotatably connected to the coring module, so that the moving protrusion column can slide into and out of the open slot. The structure of the horizontal rotation and vertical drilling module for the deep well is simple, the actions of coring, core folding, turning over and core pushing can be completed, and the use requirements can be better met.
E21B 25/16 - Appareils pour recueillir ou retirer des carottes intactes, p. ex. tubes carottiers ou extracteurs de carottes pour obtenir des carottes orientées
73.
TUBULAR COLUMN FOR DRILL-FREE AND CATCH-FREE INTEGRATED WELL CEMENTING AND WELL COMPLETION AND APPLICATION THEREOF
Disclosed is a tubular column for drill-free and catch-free integrated well cementing and well completion, the tubular column comprising a casing tubular column, and a setting tool string tubular column mounted in the casing tubular column and having a lower section thereof closed. The casing tubular column comprises an on/off-type cementing device (6), an external packer (8) and an inner seal short joint (9) connected in sequence from top to bottom, wherein the external packer is provided with a pressure transmitting hole. The setting tool string tubular column comprises an outer seal short joint (5), a bumping base (7) and an inner sealing device (11) connected in sequence from top to bottom, wherein the outer seal short joint is provided with an overflowing hole (17), the overflowing hole is located between the on/off-type cementing device and the inner seal short joint, the on/off-type cementing device and the outer seal short joint are sealed relative to each other, the inner seal short joint and the inner sealing device are sealed relative to each other, and an anchoring mechanism for releasing a grip is provided between the on/off-type cementing device and the outer seal short joint. Moreover, a method of drill-free and catch-free integrated well cementing and well completion is disclosed.
Disclosed is a tubular column for drill-free and catch-free integrated well cementing and well completion, the tubular column comprising a casing tubular column, and a setting tool string tubular column mounted in the casing tubular column and having a lower section thereof closed. The casing tubular column comprises an on/off-type cementing device (6), an external packer (8) and an inner seal short joint (9) connected in sequence from top to bottom, wherein the external packer is provided with a pressure transmitting hole. The setting tool string tubular column comprises an outer seal short joint (5), a bumping base (7) and an inner sealing device (11) connected in sequence from top to bottom, wherein the outer seal short joint is provided with an overflowing hole (17), the overflowing hole is located between the on/off-type cementing device and the inner seal short joint, the on/off-type cementing device and the outer seal short joint are sealed relative to each other, the inner seal short joint and the inner sealing device are sealed relative to each other, and an anchoring mechanism for releasing a grip is provided between the on/off-type cementing device and the outer seal short joint. Moreover, a method of drill-free and catch-free integrated well cementing and well completion is disclosed.
A wire follow-up protection structure of an electric reducer includes a deformation mechanism with a variable length and sliding plates, the sliding plates being symmetrically disposed on both sides of the deformation mechanism, the deformation mechanism being supported on the sliding plates, the sliding plates limiting the deformation mechanism such that the deformation mechanism deforms between the sliding plates, a continuous run-through channel being preset within the deformation mechanism, the deformation mechanism being disposed to be rotationally connected to the electric reducer and slidably connected to a main body of a coring device, the channel being disposed as a passage for wire.
Disclosed is a wire-driven protection structure of an electric speed reducer (1), the wire-driven protection structure comprising comprising a deformation mechanism of variable length and sliding plates (11), wherein the sliding plates (11) are symmetrically arranged on two sides of the deformation mechanism; the deformation mechanism is supported on the sliding plates (11); the sliding plates (11) restrict the deformation mechanism so as to make the deformation mechanism deform between the sliding plates (11); a continuously communicated hole passage is pre-set in the deformation mechanism; the deformation mechanism is arranged to be rotationally connected to the electric seed reducer (1), and is slidably connected to a main base body (20) of a coring device; and the hole passage is provided as a passage for an electric motor wire (10).
The present application provides a sidewall coring structure directly driven by an electric motor comprising a drill bit, an electric motor and a speed reducer, the electric motor and the speed reducer are an integrated structure and the drill bit is directly connected to an output of the speed reducer. The coring structure directly drives the drill bit through an integrated structure of the speed reducer and the electric motor; its transmission efficiency is greatly improved, meanwhile the coring structure is more simplified, with improved reliability, easier maintenance and reduced maintenance cost.
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.
E21B 49/06 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain au moyen d'outils de forage latéral ou de dispositifs de raclage
E21B 4/00 - Moyens d'entraînement dans le trou de forage
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 4/18 - Ancrage ou avancement dans le trou de forage
E21B 23/01 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour ancrer les outils ou similaires
A system of formation sampling while drilling, comprising: a suction pup joint provided to pump out and clean the formation fluid; a sampling pup joint provided to sample and store the formation fluid; a setting pup joint provided between the suction pup joint and the sampling pup joint and provided to establish a fluid channel between the formation fluid and the suction pup joint, the sampling pup joint; and an electrohydraulic high voltage connection device provided between the setting pup joint and the sampling pup joint. The embodiments of the present invention can be applied in the field of formation exploration technology, the function of storing the formation sample in the process of logging while drilling can be accomplished and the current logging instrument can be effectively optimized, the universality and precision of the current logging function can be effectively improved according to the embodiments of the present invention.
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
A method of formation testing and a formation testing instrument are provided. The formation testing instrument includes a first pump, a dual packer module, a reverse injection module and a second pump. The dual packer module is provided with a support arm at one side thereof capable of setting after deployed; and the dual packer module is provided with first and second probes at the other side. The first probe is located above the second probe and the first and second probes can establish a channel with the formation. The second pump injects the acidizing liquid in the reverse injection module into the fluid region in the formation by the second probe; and the first pump sucks the fluid in the formation by the first probe.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
81.
High-pressure fluid mixing pump control system and fluid suction control method
A high-pressure fluid mixing pump control system and a fluid suction control method, the system comprises a transmission threaded rod and a resolver sensor, wherein: one end of the transmission threaded rod is connected to an oil cylinder piston of a mixing pump, while the other end of the transmission threaded rod is connected to the resolver sensor either directly or via a rotary element that rotates coaxially with the transmission threaded rod. The high-pressure fluid mixing pump control system implements precision control via a mechanical means, converts a linear motion of the piston into a rotary motion, and utilizes the resolver sensor for precision measurement of a rotation angle, thus acquiring a piston displacement amount, and finally acquiring a suction volume. At the same time, an accelerator and an electric brake are also designed, for controlling starting and stopping of the mixing pump.
G01D 5/04 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens mécaniques utilisant des leviersMoyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens mécaniques utilisant des camesMoyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens mécaniques utilisant des engrenages
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
F04B 9/105 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide le fluide étant liquide avec une seule chambre de pompage le mouvement alternatif de l'organe de pompage étant obtenu par un moteur hydraulique à double effet
F04B 49/02 - Commande d'arrêt, de démarrage, de décharge ou de ralenti
F04B 53/14 - Pistons, tiges de piston ou liaisons piston-tige
A drilling type sidewall coring device, comprising a main machine body, a transmission, a drill bit mounted on the transmission, a machine frame contained in the main machine body, and two or more first hydraulic cylinders. The transmission is mounted on the machine frame in a rotatable way, the first hydraulic cylinders are mounted on the main machine body, and pistons of the first hydraulic cylinders are connected with the machine frame, and the stretching and retracting motion of the pistons of the first hydraulic cylinders drives the machine frame to perform a radial motion in the main machine body, so that the drill bit stretches out or retracts from the main machine body. The drilling type sidewall coring device is provided with the machine frame in the main machine body, the transmission equipped with the drill bit is mounted on the machine frame, and the hydraulic cylinders are used to directly drive the machine frame to perform a radial motion in the main machine body, so as to realize the stretching and retraction of the drill bit. Such a structure is simple to implement and also reliable, improving the precision of coring. A right-angle reducer for driving the drill bit is mounted on the machine frame, a motor for driving the right-angle reducer is mounted in the main machine body, and the motor is connected with the right-angle reducer through a flexible shaft. The motor realizes power transfer through the flexible shaft and the right-angle reducer to drive the drill bit to rotate. The transfer efficiency is relatively high, and the power performance of the drill bit is sufficient in the process of coring, thus the rate of success of coring is increased remarkably.
E21B 49/02 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits par prélèvements mécaniques d'échantillons du terrain
83.
Pup joint for releasing sidewall contact of stratigraphic test device and apparatus
A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity (NQ) of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.
E21B 49/10 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits utilisant des appareils d'échantillonnage ou de test de fluide venant s'appliquer latéralement contre la paroi du puits
F16L 19/02 - Extrémités de tuyaux pourvues de colliers ou de brides formant corps ou non avec les tuyaux, maintenues en contact par un organe vissé
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
Disclosed is a system for sampling from formation while drilling, comprising: a suction sub (11), the suction sub being configured to suction out and clean a formation fluid; a sampling sub (8), the sampling sub being configured to sample and store the formation fluid; a setting sub (9), the setting sub being provided between the suction sub and the sampling sub, and the setting sub being configured to establish a fluid channel between the formation fluid and the suction sub and sampling sub; and an electro-hydraulic high-pressure connection apparatus, the electro-hydraulic high-pressure connection apparatus being provided between the setting sub and the sampling sub. The system can be applied to the field of geo-exploration technology, and can realise the function of storing formation samples in the process of logging while drilling, wherein each module is functionally independent, wellhead assembly is easy to operate on-site, and preparation and working efficiency of the logging operation can be effectively improved.
An instrument pressure-bearing connection apparatus comprises an housing (4), and comprises an insulation fixed base front cover (17), an upper guide head (18), a circuit framework (15), a lower guide head (14), and an insulation fixed base rear cover (19). Two ends of the circuit framework (15) are separately connected to the upper guide head (18) and the lower guide head (14). The insulation fixed base front cover (17) is mounted on one end of the upper guide head (18). The insulation fixed base rear cover (19) is sleeved inside the lower guide head (14). One end of the insulation fixed base rear cover (19) is provided with a first electric connector, and the insulation fixed base front cover (17) is provided with a second electric connector. The first electric connector is configured to be fitted to the second electric connector disposed on an insulation fixed base front cover (17) of another instrument pressure-bearing connection apparatus. An instrument pressure-bearing connection assembly comprises an instrument pressure-bearing connection apparatus and a pressure-bearing electric connection connector (6). The pressure-bearing electric connection connector (6) is fitted to and inserted with a second electric connector on an insulation fixed base front cover (17) on one instrument pressure-bearing connection apparatus by means of a third electric connector on one end, and is fitted to and inserted with a first electric connector on an insulation fixed base rear cover (19) on another instrument pressure-bearing connection apparatus by means of a fourth electric connector on the other end.
E21B 47/01 - Dispositifs pour supporter des instruments de mesure sur des trépans, des tubes, des tiges ou des câbles de forageProtection des instruments de mesure dans les trous de forage contre la chaleur, les chocs, la pression ou similaire
86.
AN OIL RECOVERY PROCESS WITH COMPOSITION-ADJUSTABLE MULTI-COMPONENT THERMAL FLUID (MCTF)
The present invention relates to an oil recovery process with composition- adjustable multi-component thermal fluid, the process comprises: adding oxygen produced by air together with fuel and water into a reactor, in which the oxygen and the fuel combust to produce flue gas and heat, the heat heats water to generate hot water/steam, and then the flue gas and the hot water/steam are mixed to form multi-component thermal fluid, wherein the purity of oxygen added into the reactor is controlled so as to produce the multi-component thermal fluid with various mass ratios of flue gas to hot water/steam; then the obtained multi- component thermal fluid with various mass ratios of flue gas to hot water/steam are injected into various types of oil reservoirs for oil recovery. The oil recovery process of the present invention is applicable for various types of crude oil reservoirs.
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
88.
A HIGH TEMPERATURE CARBON DIOXIDE CORROSION INHIBITOR
The present application relates to a high temperature carbon dioxide corrosion inhibitor comprising the following components by mass percent: amide compound 15~50%, organic alkynol 10~25%, mercaptan acid 5~15%, piperidine 5~25%, mercaptopyridine 5~15%, and solvent 25~60%. The corrosion inhibitor has excellent corrosion inhibition for CO2 corrosion of oil field water system at a high temperature (150-250.degree.C).
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
89.
INTEGRAL GAS SPRING ASSEMBLY AND FORMATION FLUID SAMPLER
Disclosed are an integral gas spring assembly and a formation fluid sampler. The gas spring assembly comprises a cylinder body, a piston, a sealing element and a gas injection port, wherein high-pressure nitrogen is filled between the piston and the bottom of the cylinder body, so that a compressed nitrogen cavity is formed in the cylinder body; the piston generates an upward thrust force under the action of the high-pressure nitrogen, wherein the effective stroke of the piston is H; the length of the cylinder body is less than the sum of the length of the piston and the effective stroke H of the piston, and a part of the piston can move out of the cylinder body. The sealing element is arranged at the external diameter of the gas spring assembly, and when entirely arranged in a formation fluid sampling bottle, the gas spring assembly can move up and down and separate a sampling cavity from a slurry cavity. The gas spring assembly uses the volume increased by the extension of the piston to compensate the volume dose which is reduced with the temperature drop after the formation fluid sampling bottle conducts sampling, and uses the thrust force of the piston to maintain a predetermined pressure maintaining the value of a formation fluid at the same time.
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
F16F 9/00 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement
90.
HIGH-PRESSURE FLUID MIXING PUMP CONTROL SYSTEM AND FLUID SUCTION CONTROL METHOD
A high-pressure fluid mixing pump control system and a fluid suction control method. The system comprises a transmission threaded rod and a resolver sensor. One end of the transmission threaded rod is connected to an oil cylinder piston of a mixing pump, while the other end of the transmission threaded rod is connected to the resolver sensor either directly or via a rotary element that rotates coaxially with the transmission threaded rod. The high-pressure fluid mixing pump control system implements precision control via a mechanical means, converts the linear motion of the piston into a rotary motion, and utilizes the resolver sensor for precision measurement of a rotation angle, thus acquiring a piston displacement amount, and finally acquiring a suction volume. While at the same time, also designed are an accelerator and an electric gate, used for controlling starting and stopping of the mixing pump. Compared with the prior art, the high-pressure fluid mixing pump control system has the advantages of a simplified structure, compactness, and great stability and reliability.
F04B 49/20 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la vitesse d'entraînement
A rock formation testing method and a formation testing instrument, comprising a first pump, a dual-packer module, a reverse injection module, and a second pump. The dual-packer module has arranged at one side thereof a support arm. The support arm is capable of packing when opened. The dual-packer module has arranged at another side thereof a first probe and a second probe, where the first probe is located above the second probe, and the first probe and the second probe are capable of establishing channels with a formation. The second pump injects an acidified fluid in the reverse injection module into a fluid area in the formation via the second probe. The first pump extracts fluid from the formation via the first probe.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
06 - Métaux communs et minerais; objets en métal
07 - Machines et machines-outils
19 - Matériaux de construction non métalliques
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Radioactive elements for scientific purposes in the oil and gas industry; chemical additives for drilling muds; drilling muds for use in oil and gas wells; chemical reagents for non-medical purposes, namely chemical reagents for use in the oil and gas industry; chemical preparations for analyses in laboratories namely chemical preparations for use in the oil and gas industry.
(2) Drilling machines, namely drilling machines for use in the oil and gas industry; mine working machines in the nature of mine borers to exploit natural resources; mobile offshore drilling units, jack up drilling rigs, oil drilling platforms; oil drilling machines, namely, drilling rig machines to drill water wells, oil well pumping machines, or natural gas extraction well pumping machines; sludge pump specially used for petroleum; electrical submerge oil pump for use in connection with petroleum; capstans; electric and pneumatic hoists; handling machines and attachments for lifting or lowering loads, namely, lifts, cranes, rope and pulley systems as parts of machines; centrifugal pumps. (1) Drilling of wells; heating equipment installation and repair in the oil and gas industry; machinery installation, maintenance and repair in the oil and gas industry, namely, machinery for oil and gas well drilling, construction, completion, production, stimulation, pumping and boring; rebuilding and repairing rotary parts of rig equipments that have been worn or partially destroyed; repair and rebuilding of machines that have been worn or partially destroyed, namely, machines for oil and gas well drilling, construction, completion, production, stimulation, pumping and boring; electric appliance installation and repair in the oil and gas industry, namely, electric appliances for oil and gas well drilling, construction, completion, production, stimulation, pumping and boring; freezing equipment installation and repair in the oil and gas industry; kitchen equipment installation and repair; shipbuilding; rust proofing; painting services; elevator installation and repair; fire alarm installation and repair; burglar alarm installation and repair.
(2) Boat rental; ice-breaking for the shipping industry; truck hauling; salvage of ships; ship brokerage; maritime towing; salvaging of ships towing; underwater salvage; stevedoring; ship piloting.
(3) Analysis for oil field exploitation; oil well testing; geological surveys; conducting geological surveys; conducting oil field surveys; oil field prospecting; oil prospecting; geological prospecting; geological research; geological and marine surveying; chemical analysis; chemistry services in the nature of chemistry consultation; chemical research; land surveying; underwater exploration in the oil and gas industry.
93.
PUP JOINT FOR RELEASING SIDEWALL CONTACT OF STRATIGRAPHIC TEST DEVICE AND APPARATUS
A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
94.
PUP JOINT FOR RELEASING SIDEWALL CONTACT OF STRATIGRAPHIC TEST DEVICE AND APPARATUS
Disclosed is a pup joint for releasing sidewall contact of a stratigraphic test device. The pup joint comprises a first release arm (1), a first three-way reversing valve set (V1), a two-way reversing valve set (V2) and a third three-way reversing valve set (V4), wherein a withdrawal chamber (Q11) of the first release arm (1) is connected with an energy storage chamber (NQ) able to communicate with an accumulator and the first three-way reversing valve set (V1) of the two-way reversing valve set (V2), the two-way reversing valve set (V2) can communicate with a hydraulic oil main line (G2) of a hydraulic system, and an extension chamber (Q12) of the first release arm (1) is connected to the hydraulic oil main line (G2) able to communicate with the hydraulic system and the third three-way reversing valve set (V4) of the oil return main line (G1). The releasing pup joint effectively solves the problem of release when mud adheres to an oil and gas layer tester and makes same stuck midway during drilling.
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
07 - Machines et machines-outils
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Radioactive elements for scientific purposes; chemical
additives to drilling muds; drilling muds; chemical
reagents; chemical substances for analyses in laboratories,
other than for medical or veterinary use. Drilling machines; mine working machines; drilling rigs
(floating or non-floating); oil drilling machine; sludge
pump specially used for petroleum; oil pump specially used
for petroleum; capstans; hoists; handling apparatus for
loading and unloading; centrifugal pumps. Drilling of wells; heating equipment installation and
repair; machinery installation, maintenance and repair;
rebuilding motors that have been worn or partially
destroyed; rebuilding machines that have been worn or
partially destroyed; electric appliance installation and
repair; freezing equipment installation and repair; kitchen
equipment installation and repair; shipbuilding; rust
proofing; painting services; elevator installation and
repair; fire alarm installation and repair; burglar alarm
installation and repair. Boat rental; ice-breaking; hauling; salvage of ships; ship
brokerage; towing; salvaging; underwater salvage;
stevedoring; piloting. Analysis for oil-field exploitation; oil-well testing;
geological surveys; oil-field surveys; oil-field
prospecting; oil prospecting; geological prospecting;
geological research; surveying; chemical analysis; chemistry
services; chemical research; land surveying; underwater
exploration.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
07 - Machines et machines-outils
37 - Services de construction; extraction minière; installation et réparation
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Radioactive elements for scientific purposes; chemical additives for drilling muds; drilling muds for use in oil and gas wells; chemical reagents for non-medical purposes; chemical preparations for analyses in laboratories, other than for medical or veterinary use Drilling machines; mine working machines in the nature of mine borers to exploit natural resources; Mobile offshore drilling units, jack up drilling rigs, oil drilling platforms; oil drilling machines, namely, drilling rig machines and devices to drill water wells, oil well pumping machines, or natural gas extraction well pumping machines; sludge pump specially used for petroleum; electrical submerge oil pump for use in connection with petroleum; capstans; hoists; handling machines and attachments for lifting or lowering loads, namely, lifts, cranes, rope and pulley systems as parts of machines; centrifugal pumps Drilling of wells; heating equipment installation and repair; machinery installation, maintenance and repair; Rebuilding and repairing rotary parts of rig equipments that have been worn or partially destroyed; rebuilding machines that have been worn or partially destroyed; electric appliance installation and repair; freezing equipment installation and repair; kitchen equipment installation and repair; shipbuilding; rust proofing; painting services; elevator installation and repair; fire alarm installation and repair; burglar alarm installation and repair Boat rental; ice-breaking for the shipping industry; truck hauling; salvage of ships; ship brokerage; maritime towing; salvaging of ships towing; underwater salvage; stevedoring; piloting Analysis for oil field exploitation; oil well testing; geological surveys; conducting geological surveys; conducting oil field surveys; oil field prospecting; oil prospecting; geological prospecting; geological research; surveying; chemical analysis; chemistry services in the nature of chemistry consultation; chemical research; land surveying; underwater exploration
A submarine device includes a hollow tank body (5), a marine riser (3), blowout preventer (BOP) (4) and tie back stem (6). The BOP (4) is located on the hollow tank body (5). The marine riser (3) is connected to a drilling vessel (1) at the upper end and connected to the BOP (4) at the lower end. The tie back stem (6) is connected to the hollow tank body (5) at the upper end and connected to the seabed wellhead by the submarine wellhead apparatus (7) at the lower end and thus connected to the casing (9) for producing oil or gas in the reservoir by the submarine wellhead apparatus (7). A passage for communicating the BOP and the tie back stem system is provided on the hollow tank body. The pipe string for conveying oil, gas, or bit cuttings and drilling mud in the drilling process is divided into two sections, i.e. the tie back stem (6) and the casing (9), by the wellhead apparatus settled on the seabed. Thereby the security of the drilling platform or the drilling vessel in the drilling process is ensured and the operability of the producing system is enhanced.
