A downhole tubing cutter tool (1) for running into a downhole tubular in a wellbore (70) and separating an upper portion of the downhole tubular from a lower portion of the downhole tubular, the downhole tubing cutter tool (1) comprising: - an inner tool portion (30); - an outer sleeve (20) telescopically coupled around the inner tool portion (30); and - at least one cutting arm (40) pivotably connected to the inner tool portion (30) and moveable between a retracted position (401) and an operational position (405); wherein the outer sleeve (20) is configured to be telescoped in use in an uphole direction (X1) to pivot the at least one cutting arm (40) from the retracted position (401) to the operational position (405) through an outer sleeve opening (21) in the outer sleeve (20).
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
E21B 10/34 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles du type à organe coupant roulant
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
E21B 10/32 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles
2.
System and method for permanent plugging of a petroleum well
A valve for a landing packer in a petroleum well. The landing packer is provided with a passage between an upper face and a lower face, and the valve is adapted to close the passage. The valve comprises a biased valve body adapted to be displaced between a first position and a second position. The valve body is adapted to receive a tool from above. The valve body is adapted to be displaced from a first position to a second position by a downward force executed by the tool. It is also described a tool comprising a leading end adapted to abut fluid tightly the biased valve body and the tool is adapted to displace the biased valve body between the first closed position and the second open position. It is also described a method for plugging the A-annulus in a petroleum well.
A system (7) for a downhole operation comprising a device (1) and a toolstring (24, 26) is described The device (1) is formed to be placed within a wellbore (9) and to guide a lower part (244) of the toolstring (24, 26) such that a free end portion (246) in the lower part (244) forms a guide angle (1265) with a longitudinal axis (128) of the device (1). The de- vice (1) enables a hole (100) to be drilled into a formation (95) surrounding the wellbore (9) and subsequent re-entries into the hole (100).
An orientation device (6) for orientating a tool (7) within a wellbore, wherein:
the orientation device (6) forms a central longitudinal axis (162) from a first orientation device end (122) to a second orientation device end (142);
the orientation device (6) comprises at least one orientation member (62) displaceable between a retracted position and an extended position, the extended position has a lateral displacement compared to the retracted position; and
the orientation member (62) comprises a distal end portion (63) where the distal end portion (63) is formed to be displaceable along a curve of an internal wall (924) of the wellbore.
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
E21B 23/04 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage mis en œuvre à l'aide de moyens fluides, p. ex. actionnés par explosion
E21B 47/024 - Détermination de l'inclinaison ou de la direction des dispositifs dans le trou de forage
5.
Method of preparing a first combined digital signal to be transmitted along a wireline deployed in a well, and method of preparing and transmitting telemetry data along a wireline deployed in a well
Disclosed is a method of preparing a first combined digital signal to be transmitted along a wireline deployed in a well. The first combined digital signal is for controlling a wireline conveying system and a measurement tool. The method includes converting a first telemetry signal to form a digitized telemetry signal, the first telemetry signal comprising control data for measurement tool; providing a control data for controlling the wireline conveying system; and transferring the digitized telemetry signal and the control data to a unit for processing data, the unit forming the first combined digital signal by multiplexing the transferred signal and data. Also disclosed is a method of preparing and transmitting telemetry data along a wireline, the method includes the previous steps and further: modulating the first combined digital signal to form a modulated signal; and transmitting the modulated signal from one end of the wireline to another.
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
6.
TOOLSTRING FOR SETTING A TUBULAR EQUIPMENT IN A WELL TUBING AND METHOD FOR SETTING THE TUBULAR EQUIPMENT
A tool string (1) comprising an engaging tool (6) configured to connect a tubular equip- ment (74) to the tool string (1), wherein: - the tool string (1) comprises in sequence from a first end (12) towards a second end (14) the engaging tool (6), a tractor (3) and a gripping tool (5); - the first end (12) is positioned uphole compared to the second end (14); and - the engaging tool (6) is configured to connect to the tubular equipment (74) in an up- hole end of the tubular equipment (74) Methods for using the tool string (1) are de- scribed as well.
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
E21B 23/03 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour mettre en place des outils sur les supports ou dans les retraits ou poches excentrées ou pour les en retirer
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
E21B 4/18 - Ancrage ou avancement dans le trou de forage
7.
METHOD OF PREPARING A FIRST COMBINED DIGITAL SIGNAL TO BE TRANSMITTED ALONG A WIRELINE DEPLOYED IN A WELL, AND METHOD OF PREPARING AND TRANSMITTING TELEMETRY DATA ALONG A WIRELINE DEPLOYED IN A WELL
Disclosed is a method of preparing a first combined digital signal to be transmitted along a wireline deployed in a well. The first combined digital signal is for controlling a wireline conveying system and a measurement tool. The method comprises: converting a first telemetry signal to form a digitized telemetry signal, the first telemetry signal comprising control data for measurement tool; providing a control data for controlling the wireline conveying system; and transferring the digitized telemetry signal and the control data to a unit for processing data, the unit forming the first combined digital signal by multiplexing the transferred signal and data. Also disclosed is a method of preparing and transmitting telemetry data along a wireline, the method comprising the previous steps and further: modulating the first combined digital signal to form a modulated signal; and transmitting the modulated signal from one end of the wireline to another.
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
G08C 15/00 - Dispositions caractérisées par l'utilisation du multiplexage pour la transmission de plusieurs signaux par une voie commune
G01V 1/22 - Transmission des signaux sismiques aux appareils d'enregistrement ou de traitement
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
8.
System and method for permanent plugging of a petroleum well
A valve for a landing packer in a petroleum well. The landing packer is provided with a passage between an upper face and a lower face, and the valve is adapted to close the passage. The valve comprises a biased valve body adapted to be displaced between a first position and a second position. The valve body is adapted to receive a tool from above. The valve body is adapted to be displaced from a first position to a second position by a downward force executed by the tool. It is also described a tool comprising a leading end adapted to abut fluid tightly the biased valve body and the tool is adapted to displace the biased valve body between the first closed position and the second open position. It is also described a method for plugging the A-annulus in a petroleum well.
A drilling assembly comprises a drill bit and a cutting assembly. The drilling assembly forms a longitudinal center axis. The drill bit and cutting assembly fastened to a rotatable spline drive assembly. The cutting assembly resiliently displaceable to the drill bit along the center axis such that in a first position the drill bit is surrounded by the cutting assembly, and in a second position a free end portion of the drill bit is projecting beyond the cutting assembly along the center axis. The cutting assembly comprises an endmill. The endmill comprises a central through hole complementary to the outer diameter of the drill bit. A method for cutting swarfs created by drilling, with an endmill, is described.
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 17/07 - Joints télescopiques permettant de faire varier les longueurs de trains de tigesAmortisseurs
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
10.
Drilling assembly for removal of an obstacle in a conduit
A drilling assembly for making a passage in an object within a petroleum well. The drilling assembly comprises a drill bit assembly, a cutting assembly, and both assemblies are fastened to a rotatable drive assembly. The drill bit assembly comprises a drill bit. The cutting assembly comprises a hole saw assembly. The cutting assembly is resiliently displaceable to the drill bit assembly. The drilling assembly comprises a displaceable membrane within the tubular body. The membrane divides an interior of the tubular body in a receiving compartment and an inner compartment.
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
E21B 4/00 - Moyens d'entraînement dans le trou de forage
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
11.
Dump bailer and lubricator assembly for filling the dump bailer
A dump bailer for being filled with a flowable material in a lubricator assembly and for depositing the flowable material in a wellbore, wherein the dump comprises a filling valve for filling flowable material into the dump bailer and a means for orientation of the dump bailer along a longitudinal axis. The invention also relates to a lubricator assembly configured to allow filling a flowable material into a dump bailer positioned within the lubricator assembly, wherein the lubricator assembly comprises an inlet for injection of flowable material and a guide for providing the dump bailer with a correct position and orientation. The invention further relates to a method for filling a flowable material into a dump bailer positioned within a lubricator assembly and for depositing the flowable material in a wellbore.
A downhole apparatus including a sleeve, a tool string, a plug, a means for setting the plug wherein an upper portion of the sleeve is connectable to a lower portion of the tool string, and a lower portion of the sleeve is arranged to receive the plug and the means for setting the plug. A method for using the downhole apparatus (1) is disclosed.
E21B 23/06 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour le montage des packers
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
A tool string arrangement (1) for displacement in a deviating wellbore (9) by a wireline operated tractor (2), said tool string arrangement (1) comprises a clean-out arrangement (4), the clean-out arrangement (4) comprises a rotational motor (40) provided with electrical energy through a wireline (21). The tool string arrangement (1) comprises a perforation arrangement (3) positioned between the wireline operated tractor (2) and the rotational motor (40). A method for using the tool string arrangement (1) is described.
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
E21B 43/119 - Parties constitutives, p. ex. pour localiser l'emplacement ou la direction de la perforation
E21B 37/02 - Dispositifs de raclage spécialement adaptés à cet effet
A wireline clean-out tool including a first opening and a second opening at or near a free-end portion. The first opening takes in debris from a wellbore, the second opening ejects fluid into the wellbore. A housing defines a first flow path from the first opening at the free-end portion to an opposite end portion of the housing and a second flow path from the opposite end portion to the second opening at the free-end portion. The flow paths couple with each other at the opposite end portion. A collection chamber is in the first flow path for collecting debris during operation. A progressive cavity pump with hollow rotors is placed inside the housing at a predefined distance from the free-end portion being configured for operating on the first flow path while the hollow rotor forms part of the second flow path.
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
B01D 29/64 - Régénération de la substance filtrante dans le filtre par des racloirs, des brosses ou des dispositifs analogues agissant sur le côté de l'élément filtrant où se trouve le gâteau
B08B 9/045 - Nettoyage des surfaces intérieuresÉlimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes déplacés par liaison mécanique actionnée de l'extérieur, p. ex. poussés ou tirés dans les tubes les dispositifs de nettoyage étant mis en rotation pendant le déplacement
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
E21B 4/02 - Moyens d'entraînement de type rotatif par fluide
E21B 47/00 - Relevés dans les trous de forage ou dans les puits
15.
Device for emptying a wireline operated wellbore debris clean out tool and a method for using the device
A circulation unit for connecting to a lubricator suitable for housing a wireline operated tool string for collecting debris within a petroleum well. The circulation unit comprises a house with an upper lubricator connection and at least one lower internal seal member adapted to seal against an outer surface of the tool string. The circulation unit has an outlet above the seal member, the outlet being connected to a reservoir. The circulation unit has a lower lubricator connection. The house, upper lubricator connection and lower lubricator connection form a through passage for the tool string. The upper lubrication connection and lower lubrication connection are adapted for connection to a pressurized lubricator. The tool string includes a wellbore cleanout tool with filling means. The wellbore cleanout tool comprises an outlet for unloading collected debris in a lubricator assembly comprising the lubricator and the circulation unit.
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 33/072 - Têtes de puitsLeur mise en place comportant des dispositions pour introduire des objets dans les puits ou pour les en retirer, ou pour y introduire des fluides pour les outils manœuvrés par câbles
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
A drilling assembly comprises a drill bit and a cutting assembly. The drilling assembly forms a longitudinal center axis. The drill bit and cutting assembly fastened to a rotatable spline drive assembly. The cutting assembly being resiliently displaceable to the drill bit along the center axis such that in a first position the drill bit is surrounded by the cutting assembly and in a second position a free end portion of the drill bit projects beyond the cutting assembly along the center axis. The cutting assembly comprises an endmill which comprises a central through hole which is complementary to the outer diameter of the drill bit. A method for cutting swarfs created by drilling with the endmill is described.
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 17/07 - Joints télescopiques permettant de faire varier les longueurs de trains de tigesAmortisseurs
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
17.
Device for hydraulically operating a drive wheel of a wellbore tractor, e.g. a motor, and related tractor, wellbore string, and method
A device for hydraulically operating a drive wheel of a wellbore tractor has, in certain embodiments, at least one cam and a rotatable assembly arranged to be rotatable with respect to the cam about an axis of rotation. The rotatable assembly has at least one piston. The device also has a chamber and at least one supply port for supplying hydraulic fluid from the chamber to the piston for energizing the piston, the supply port being arranged to be moved between first and second positions relative to the cam. In the first position, the piston can connect to the supply port and be energized to impart force against the cam for producing forward rotation of the assembly. In the second position, the piston can connect to the supply port and be energized to impart force against the cam for producing reverse rotation of the assembly. Related distributor assembly, wellbore tractor, and method are also described.
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
F03C 1/047 - Machines motrices à liquide à pistons alternatifs avec des cylindres multiples et caractérisées par le nombre ou la disposition des cylindres avec cylindres disposés en étoile ou en éventail les moyens coopérant avec un élément actionné aux extrémités extérieures des cylindres
F04B 1/063 - Commande en utilisant une vanne dans un système avec plusieurs chambres de pompage dans lesquelles le chemin d'écoulement à travers les chambres peut être modifié, p. ex. entre les flux en série et en parallèle
F04B 1/1071 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail les cylindres étant mobiles, p. ex. rotatifs avec des éléments actionnants ou actionnés aux extrémités extérieures des cylindres avec des blocs-cylindres rotatifs
E21B 4/18 - Ancrage ou avancement dans le trou de forage
18.
Apparatus for performing multiple downhole operations in a production tubing
A downhole apparatus comprises a sleeve, a tool string, a plug, a means for setting the plug wherein an upper portion of the sleeve is connectable to a lower portion of the tool string, and a lower portion of the sleeve is arranged to receive the plug and the means for setting the plug. A method of using the downhole apparatus is disclosed.
E21B 23/06 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour le montage des packers
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
The invention relates to a dump bailer (1) for being filled with a flowable material in a lubricator assembly (51) and for depositing the flowable material in a wellbore, wherein the dump comprises a filling valve (17) for filling flowable material into the dump bailer (1) and a means for orientation of the dump bailer (1) along a longitudinal axis. The invention also relates to a lubricator assembly (51) configured to allow filling a flowable material into a dump bailer (1) positioned within the lubricator assembly (51), wherein the lubricator assembly (51) comprises an inlet (71) for injection of flowable material and a guide (67) for providing the dump bailer (1) with a correct position and orientation. The invention further relates to a method for filling a flowable material into a dump bailer (1) positioned within a lubricator assembly (51) and for depositing the flowable material in a wellbore.
The invention relates to a wireline clean-out tool (1) for collecting debris (99) in a wellbore (100). The wireline clean-out tool (1) comprises: i) a first opening (3) and a second open-ing (5) being provided at or near a free-end portion (1e) of the wireline clean-out tool (1), wherein the first opening (3) is for taking in said debris (99) from the wellbore (100), and the second opening (5) is for ejecting fluid (10) into the wellbore (100); ii) a housing (20) defining a first flow path (21) running from the first opening (3) at the free-end portion (1e) to an opposite end portion (2e) of the housing (20), and a second flow path (23) running from the opposite end portion (2e) to the second opening (5) at the free-end portion (1e), wherein said flow paths (21, 23) are coupled with each other at the opposite end portion (2e); iii) a collection chamber (25) provided in the first flow path (21) for collecting said debris (99) during operational use of the wireline clean-out tool (1), and iv) a progressive cavity pump (30, 30-1) having a hollow rotor (35), wherein the progressive cavity pump (30) is placed inside the housing (20) at a predefined distance (d1) from the free-end portion (1e) being configured for operating on the first flow path (21) while the hollow rotor (35) forms part of the second flow path (23). The invention provides for a very effective tool for cleaning well-bores. The tool has a large capacity, suffers much less from clogging and provides for convenient emptying of the tool.
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
A downhole tool string forming a free end portion for performing an operation in a well having a well fluid, the string comprising towards the free end portion; a motor for delivering a rotational speed, a pump connected the motor for circulating the well fluid through a first port and a second port, a gear housing comprising a gear being driven by the pump and delivering a reduced rotational speed, a tool shaft rotatable by the gear at the reduced rotational speed; a reservoir around a section of the tool shaft for collecting dislodged material, and a material dislodging means connected to the tool shaft, wherein the gear housing further comprises a first fluid channel for providing fluid communication between the pump and the first port via the tool shaft being hollow, and a second fluid channel for providing fluid communication between the pump and second port via the reservoir.
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 21/08 - Commande ou surveillance de la pression ou de l'écoulement du fluide de forage, p. ex. remplissage automatique des trous de forage, commande automatique de la pression au fond
E21B 17/22 - Tiges ou tubes à structure hélicoïdale
E21B 7/18 - Forage par action de jets de liquides ou de gaz, avec ou sans entraînement de grenaille
E21B 10/18 - Trépans à organes coupants roulants, p. ex. à molettes caractérisés par des canaux ou des buses pour les fluides de forage
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
22.
Downhole tractor comprising an improved hydraulic system
A downhole tractor having a hydraulic system for driving a plurality of hydraulic cylinders and a plurality of hydraulic motors. The system comprises: a hydraulic power pack; a first hydraulic supply line for supplying hydraulic fluid to the plurality of hydraulic cylinders; a second hydraulic supply line for supplying hydraulic fluid to plurality of hydraulic motors; a valve section comprising a respective part of first hydraulic supply line and a further respective part of second hydraulic supply line, valve section further comprising an inlet for receiving hydraulic fluid, and a set of valves, and a hydraulic bypass supply line coupled to hydraulic power pack for supplying hydraulic fluid directly to the inlet of valve section bypassing at least part of first hydraulic supply line and second hydraulic supply line. The first and the second hydraulic supply line each comprise two parts connected via respective part in the valve section. Each respective part is connected to a respective sub-set of plurality of hydraulic components. The valve section configured for individually controlling flow of hydraulic fluid into each respective part of hydraulic supply lines.
F15B 11/20 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs commandant plusieurs organes réagissant les uns sur les autres ou fonctionnant successivement
F15B 11/16 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs
F15B 11/17 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs utilisant plusieurs pompes
F15B 15/18 - Ensembles combinés comportant moteur et pompe
A drilling assembly(1), comprising a drill bit (5) and a cutting assembly (2), - said drilling assembly (1) forming a longitudinal center axis (9); - said drill bit (5) and cutting assembly (2) being fastened to a rotatable spline drive assembly (3); - said cutting assembly (2) being resiliently displaceable to the drill bit (5) along the center axis (9) such that in a first position the drill bit (5) is surrounded by the cutting assembly (2), and in a second position a free end portion (52) of the drill bit (5) is projecting beyond the cutting assembly (2) along the center axis (9). The cutting as-sembly (2) comprises an endmill (28), said endmill (28) comprises a central through hole (26) which is complementary to the outer diameter of the drill bit (5). A method for cutting swarfs created by drilling, with an endmill (28), is described.
E21B 10/26 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
24.
DEVICE FOR EMPTYING A WIRELINE OPERATED WELLBORE DEBRIS CLEAN OUT TOOL AND A METHOD FOR USING THE DEVICE
Circulation unit (2) for connecting to a lubricator (160), said lubricator (160) is suitable for housing a wireline operated tool string (200) for collecting debris within a petroleum well, said circulation unit (2) comprises a house (29) provided with an upper lubricator connection (165) and with at least one lower internal seal member (23), said seal member (23) is adapted to seal against an outer surface of the tool string (200), and the circulation unit (2) is provided with an outlet (30) above the seal member (23), said outlet (30) being connected to a reservoir (3; 300). The circulation unit (2) is provided with a lower lubricator connection (166);the house (29), the upper lubricator connection (165) and the lower lubricator connection (166) form a through passage for the tool string (200); and the upper lubrication connection (165) and the lower lubrication connection (166) are adapted for connection to a pressurized lubricator (160). The tool string (200) comprises a wellbore clean out tool (230) provided with filling means and said wellbore clean out tool (230) comprises an outlet (4) for unload-ing collected debris in a lubricator assembly (16) comprising the lubricator (160) and the circulation unit (2). A method for unloading the filled wellbore clean out tool (230) in the circulation unit (2) is described as well.
E21B 33/068 - Têtes de puitsLeur mise en place comportant des dispositions pour introduire des objets dans les puits ou pour les en retirer, ou pour y introduire des fluides
E21B 33/072 - Têtes de puitsLeur mise en place comportant des dispositions pour introduire des objets dans les puits ou pour les en retirer, ou pour y introduire des fluides pour les outils manœuvrés par câbles
E21B 37/04 - Dispositifs de raclage spécialement adaptés à cet effet actionnés par pression de fluide, p. ex. dispositifs de raclage à piston libre
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
25.
Downhole expansion tool and method for use of the tool
An expansion tool and method for expanding a tubing is disclosed. The expansion tool includes a rear portion, an opposite leading end and an expansion piston within the expansion tool. The expansion piston includes an expansion cone and radially movable expansion elements forming a circumferential expansion body. The rear portion is adapted for engaging a power source positioned at the rear portion. The expansion tool further includes a plurality of expansion arms surrounding the expansion piston. Each expansion arm is on an outer side provided with an expansion element, and a wedge portion between the expansion element and the expansion cone. The wedge portion abuts the expansion cone.
A device for hydraulically operating a drive wheel of a wellbore tractor has in certain embodiments at least one cam, and a rotatable assembly arranged to be rotatable with respect to the cam about an axis of rotation. The rotatable assembly has at least one piston. The device also has a chamber and at least one supply port for supplying hydraulic fluid from the chamber to the piston for energizing the piston, the supply port being arranged to be moved between first and second positions relative to the cam. In the first position, the piston can connect to the supply port and be energized to impart force against the cam for producing forward rotation of the assembly. In the second position, the piston can connect to the supply port and be energized to impart force against the cam for producing reverse rotation of the assembly. Embodiments of a related distributor assembly, wellbore tractor, and method are also described.
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
F03C 1/047 - Machines motrices à liquide à pistons alternatifs avec des cylindres multiples et caractérisées par le nombre ou la disposition des cylindres avec cylindres disposés en étoile ou en éventail les moyens coopérant avec un élément actionné aux extrémités extérieures des cylindres
27.
High tensile strength winder connection for downhole tools
A winder for a threaded connection of two axially aligned bodies where a first body comprises a male portion at an end connection portion and a second body has a female portion at an end connection portion. The female portion comprises a sleeve with a threaded portion on an internal face. The winder includes a winder ring encircling the male portion. The winder ring forms an internal surface and an external surface having a threaded portion. The internal surface of the winder ring includes a number of parallel grooves that are perpendicular to a rotational axis of the winder ring. A further male portion comprises external, circular grooves complementary to internal, circular ridges of the winder, and a threaded connection between two axially aligned bodies where the connection comprises the winder and the male portion.
F16L 15/00 - Raccords avec filetageFormes des filetages pour ces raccords
F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux
F16L 39/04 - Raccords ou accessoires de raccordement pour tuyaux à double paroi ou à canaux multiples ou pour assemblages de tuyaux permettant réglage ou déplacement
28.
System and method for cleaning a production tubing
A method of cleaning production tubing in a producing petroleum well comprising the steps: i) providing collection tool configured for both selectively collecting debris while residing downhole to obtain collected debris as well as selectively releasing collected debris while residing downhole; ii) lowering collection tool to specific location at certain depth into production tubing of the producing petroleum well where there is at least a partial choking of local production flow due to accumulated debris deposited on production tubing; iii) collecting accumulated debris with collection tool to obtain collected debris; iv) pulling collection tool to production zone of production tubing or downstream of production zone where there will be enough production flow during production to ensure lifting capacity for collected debris; and v) releasing collected debris into production zone of production tubing to obtain released debris being lifted by production flow when production is running. The invention leads to time and cost savings during cleaning of production tubing.
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
E21B 27/02 - Cuillers de déchargement, c.-à-d. récipients pour déposer des substances, p. ex. du ciment ou des acides
E21B 34/14 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des outils, p. ex. obturateurs à manchons actionnés par des pistons ou par des outils à câble
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
29.
DOWNHOLE TOOL AND METHOD FOR DISPLACING A SLEEVE IN A WELLBORE
It is described a downhole tool (1) for displacing a slideable sleeve (50) under actuation of a stroker tool (100), the sleeve (50) being provided inside a casing string (501) in a wellbore (500), the casing string having openings (51), and wherein the sleeve (50) has a position relative to the casing (501) whereat it seals the openings (51), wherein the downhole tool (1) comprises: - a telescopic unit (2) comprising an inner telescopic element (21) and an outer telescopic element (22) that are moveable relative to each other over a predefined stroke (23), wherein a part of the stroke (23) has a significantly higher friction between the inner telescopic element (21) and the outer telescopic element (22) than a remainder of the stroke (23); - a tapered actuator (3) arranged at least partially within the inner telescopic element (21) and be-ing at least axially displaceable relative to the inner telescopic element (21), wherein the tapered actuator (3) is actuated by the stroker tool (100), in operational use; - a gripper device (4) mounted in a sidewall of the inner telescopic element (21) and being at least radially displaceable by axial displacement of the tapered actuator (3) relative to the inner telescopic element (21) for gripping the sleeve (50).
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
E21B 34/14 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des outils, p. ex. obturateurs à manchons actionnés par des pistons ou par des outils à câble
A collecting device for displacement in a tubing. The collecting device is extended in shape with a longitudinal axis and forms a leading portion with an entrance and an end portion. The device includes a wall extending from the leading portion to the end portion, a collecting chamber formed inside a portion of the wall, a filter positioned with the collecting chamber, a motor, a pump, and an outlet at the end portion, where the filter stocking provided with an open first end portion and a closed second end portion, and the open first end portion faces the leading portion, a and the filter stocking forms a receptacle. A method for emptying the collecting device is described.
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
E21B 10/42 - Trépans rotatifs du type racleur comportant des dents, des lames ou des organes de coupe similaires, p. ex. du type à fourche, en queue de poisson
31.
Downhole tractor comprising two or more hydrualic supply lines
A downhole tractor has at least one hydraulic drive section, comprising a first hydraulic supply line for actuating at least one hydraulic cylinder for actuating at least one tractor arm and a second hydraulic supply line for driving at least one hydraulic motor for rotating at least one tractor wheel. The downhole tractor further comprises a hydraulic power pack configured for supplying hydraulic fluid to the hydraulic supply lines. The hydraulic power pack comprises a pressure-setting valve provided in between the first hydraulic supply line and the second hydraulic supply line, wherein the pressure-setting valve is configured for feeding excess hydraulic fluid in the first hydraulic supply line to the second hydraulic supply line to increase the speed of the downhole tractor.
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
F15B 11/20 - Systèmes de servomoteurs dépourvus d'asservissement avec plusieurs servomoteurs commandant plusieurs organes réagissant les uns sur les autres ou fonctionnant successivement
F15B 13/07 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec plusieurs servomoteurs opérant en séquences distinctes
A receptacle is formed with a bottom end and a top end and houses an auger conveyor. The system includes at least one bottom sub comprising an inlet end and an outlet end. The outlet end is releasably connectable to a receptacle bottom end. At least one top assembly, comprising a house with an entrance releasably connectable to the receptacle top end and an outlet for connection to an outlet line, and a chamber within the house. The chamber forms a flow path between the entrance and the outlet. A retention tank is connected to the at least one top assembly outlet by the outlet line. A pump is connected to the retention tank on a pump suction side by a supply line, and the pump on the pressure side being connected to the at least one bottom sub by an inlet line.
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
B08B 9/032 - Nettoyage des surfaces intérieuresÉlimination des bouchons par l'action mécanique d'un fluide en mouvement, p. ex. par effet de chasse d'eau
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 37/02 - Dispositifs de raclage spécialement adaptés à cet effet
B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
It is described a downhole tool string (1) forming a free end portion (101) for performing an operation in a well having a well fluid (10), the downhole tool string (1) comprising towards the free end portion (101): - a motor (6) for delivering a rotational speed; - a pump (5) connected to the motor (6) for circulating the well fluid (10) through a first port (21) and a second port (8); - a gear housing (400) comprising a gear (4), the gear (4) being driven by the pump (5) and delivering a reduced rotational speed; - a tool shaft (3) rotatable by the gear (4) at the reduced rotational speed; - a reservoir (71) around a section of the tool shaft (3) for collecting dislodged material, and - a material dislodging means (2) connected to the tool shaft (3), wherein the gear housing (400) further comprises a first fluid channel (410) for providing fluid communication between the pump (5) and the first port (21) via the tool shaft (3) being hollow, and a second fluid channel (440) for providing fluid communication between the pump (5) and second port (8) via the reservoir (71).
The invention relates to an overvoltage protection circuit, particularly in system where the load is remote from a regulated power supply and relates to an electric power supply system comprising such overvoltage protection circuit. The invention further relates to a downhole tractor comprising such overvoltage protection circuit, and to a tethered subsea vehicle comprising the overvoltage protection circuit.
It is described a downhole apparatus (1), the downhole apparatus (1) comprising: - a sleeve (2) - a tool string (3) - a plug (4) - a means (41) for setting the plug (4) wherein an upper portion (210) of the sleeve (2) is connectable to a lower portion (310) of the tool string (3), and a lower portion (211) of the sleeve (2) is arranged to receive the plug (4) and the means (41) for setting the plug (4). A method for using the downhole apparatus (1) is described as well.
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
E21B 23/06 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour le montage des packers
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 29/00 - Découpage ou destruction de tubes, packers, bouchons ou câbles, situés dans les trous de forage ou dans les puits, p. ex. découpage de tubes endommagés, de fenêtresDéformation des tubes dans les trous de forageRemise en état des tubages de puits sans les retirer du sol
The downhole tool comprises: (i) a housing connected with a collection chamber for receiving debris, the housing having an opening for collecting the debris from the petroleum well, the opening in fluid communication with the collection chamber through the housing; (ii) a rotatable shaft with transport blades arranged within the housing and extending from the opening to the collection chamber, the rotatable shaft configured for transporting debris from the opening to the collection chamber in operational use; (iii) an annular area defined between the rotatable shaft and an inner wall of the housing and (iv) a valve configured for keeping debris in the collection chamber. The valve is located within the housing between the opening and the collection chamber. The valve comprises a seal member with a movable part mounted in the annular area and around the rotatable shaft. The valve is opened when the movable part moves in direction of the collection chamber and is configured such that the movable part of the seal member is only movable in the direction towards the collection chamber when closed. The downhole tool provides a valve, which is easily opened, requiring a very small force, while providing a very good sealing effect when the seal member is closed.
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
E21B 31/08 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des paniers ou des dispositifs de repêchage analogues
37.
Dowhole tractor comprising a hydraulic supply line for actuating hydraulic components
The downhole tractor further comprises a hydraulic power pack coupled to the hydraulic supply line, at least one hydraulic component and at least one further hydraulic component. The hydraulic components are coupled to the hydraulic supply line in parallel and configured for being actuated by the hydraulic supply line. The hydraulic supply line comprises a controllable valve placed at a location in between the at least one hydraulic component and the at least one further hydraulic component such that a first part of the hydraulic supply line is coupled to a second part of the hydraulic supply line via the controllable valve. The downhole tractor provides for much better control and facilitates tuning of the performance of the tractor to the actual needs.
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
E21B 4/18 - Ancrage ou avancement dans le trou de forage
E21B 23/04 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage mis en œuvre à l'aide de moyens fluides, p. ex. actionnés par explosion
E21B 23/00 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage
E21B 7/06 - Modification de la direction du trou de forage
38.
HIGH TENSILE STRENGTH WINDER CONNECTION FOR DOWNHOLE TOOLS
The invention concerns a winder (1) for a threaded connection of two axially aligned bodies (2, 3) where: - a first body (2) comprises a male portion (4) at an end connection portion; - a second body (3) comprises a female portion (5) at an end connection portion; - the female portion (5) comprises a sleeve (51) with a threaded portion (53) on an internal face; - the winder (1) comprises a winder ring (6) encircling the male portion (4); and - the winder ring (6) forms an internal surface (12) and an external surface (18), and the external surface (18) comprises a threaded portion (13), and where - the winder ring's (6) internal surface (12) comprises a number of parallel grooves (14) that are perpendicular to a rotational axis of the winder ring (6). The invention further concerns a male portion (4) comprising external, circular grooves (48) that is complementary to internal, circular ridges (15) of the winder (1), and a threaded connection between two axially aligned bodies (2, 3) where the con- nection comprises the winder (1) and the male portion (4).
F16L 15/00 - Raccords avec filetageFormes des filetages pour ces raccords
F16L 27/08 - Raccords réglablesRaccords permettant un déplacement des parties raccordées permettant un réglage ou déplacement uniquement autour de l'axe de l'un des tuyaux
E21B 17/042 - AccouplementsJoints entre tige et trépan, ou entre tiges filetés
39.
SYSTEM AND METHOD FOR CLEANING A PRODUCTION TUBING
The invention relates to a method of cleaning a production tubing (10) in a producing petroleum well. The method comprises steps of: i) providing a collection tool (100) that configured for both selectively collecting debris (90) while residing downhole to obtain collected debris (92) as well as selectively releasing the collected debris (92) while residing downhole; ii) lowering said collection tool (100) to a specific location (99) at a certain depth into the production tubing (10) of the producing petroleum well where there is at least a partial choking of a local production flow due to accumulated debris (90) deposited on the production tubing (10); iii) collecting said accumulated debris (90) with the collection tool (100) to obtain collected debris (92); iv) pulling said collection tool (100) to a production zone (25) of the production tubing (10) or downstream of said production zone (25) where there will be enough production flow during production to ensure a lifting capacity for the collected debris (92), and v) re- leasing said collected debris (92) into the production zone (25) of the production tub- ing (10) to obtain released debris (94) being lifted by the production flow (35) when the production is running. The invention leads to tremendous time saving and thereby cost savings during cleaning of production tubing.
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
Collecting device (1) for displacement in a tubing (9), the collecting device (1) is extended in shape with a longitudinal axis (99), the collecting device (1) forms a leading portion (11) with an entrance and an end portion (12); the collecting device (1) comprises: - a wall (4) extending from the leading portion (11) to the end portion (12); - a collecting chamber (5) formed inside a portion of the wall (4); - a filter positioned within the collecting chamber (5); - a motor (33); - a pump (6); and - an outlet (69) at the end portion (12), where the filter is a filter stocking (7) provided with an open first end portion (71) and a closed second end portion (79), and the open first end portion (71) faces the leading portion (11), and the filter stocking (7) forms a receptacle. A method for emptying the collecting device is described as well.
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
Expansion tool (1) for expanding a tubing (91, 93), the expansion tool (1) comprises: - a rear portion (10); - an opposite leading end (19); - an expansion piston (4) within the expansion tool (1), the expansion piston (4) com- prising an expansion cone (47); and - radially movable expansion elements (33) forming a circumferential expansion body (3), where the rear portion (10) is adapted for engaging a power source (8), said power source (8) is positioned at the rear portion (10), and the expansion tool (1) further comprises: - a plurality of expansion arms (31) surrounding the expansion piston (4), each expansion arm (31) is on an outer side (315) provided with an expansion element (33); and - a wedge portion (37) between the expansion element (33) and the expansion cone (47), said wedge portion (37) abutting the expansion cone (47). A method for using the expansion tool (1) is also disclosed.
The invention relates to a downhole tractor having at least one hydraulic drive section, comprising a first hydraulic supply line (200, 200-1) for actuating at least one hydraulic cylinder (160) for actuating at least one tractor arm and a second hydraulic supply line (300, 300-1) for driving at least one hydraulic motor (170) for rotating at least one tractor wheel. The downhole tractor further comprises a hydraulic power pack (100) configured for supplying hydraulic fluid to the hydraulic supply lines (200, 200-1, 300, 300-1). The hydraulic power pack (100) comprises a pressure-setting valve (115) provided in between the first hydraulic supply line (200, 200-1) and the second hydraulic supply line (300, 300- 1), wherein the pressure-setting valve (115) is configured for feeding excess hydraulic fluid in the first hydraulic supply line (200, 200-1) to the second hydraulic supply line (300, 300-1) to increase the speed of the downhole tractor.
E21B 23/04 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage mis en œuvre à l'aide de moyens fluides, p. ex. actionnés par explosion
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
F15B 13/07 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec plusieurs servomoteurs opérant en séquences distinctes
43.
OVERVOLTAGE CLAMP WITH PARALLEL CONTROLLED RESISTIVE PATH
The invention relates to an overvoltage protection circuit (106, 300, 501, 604, 703, 800) comprising: i) a first terminal (V+) and a second terminal (V-) for receiving a supply voltage (VL) at a load (103); ii) a voltage clamping circuit (801) connected between said terminals (V+, V-) and providing a clamping current path (CCP) between said terminals (V+, V-) as soon as the supply voltage (VL) over said terminals (V+, V-) reaches a preset clamping voltage (VCLP) such that said supply volt- age (VL) is substantially limited to said clamping voltage (VCLP). The overvoltage protection circuit (106, 300, 501, 604, 703, 800) further comprises a controllable resistance circuit (803) connected between said terminals (V+, V-) parallel to the voltage clamping circuit (801), wherein the controllable resistance circuit (803) is configured for providing a resistive current path (RCP) parallel to the clamping current path (CCP) of the voltage clamping circuit (801) when the voltage clamping circuit (801) is activated such that it conducts an electrical current (Icl), and for providing a high- impedance parallel to the clamping current path (CCP) of the voltage clamping circuit (801) when voltage clamping circuit (801) is deactivated. The invention provides for a solution that exploits the benefits of two different solutions namely that of voltage clamping semiconductor elements and resistors.
System (1) for cleaning at least one receptacle (2), said receptacle (2) is formed with a bottom end (20) and a top end (29), and said receptacle (2) is housing an auger conveyor (22), where the system (1) comprises: - at least one bottom sub (3) comprising an inlet end (30) and an outlet end (39), said outlet end (39) is releasly connectable to the receptacle' s (2) bottom end (20); - at least one top assembly (4), comprising a house (41) with an entrance (40) releasly connectable to the receptacle' s (2) top end (29) and an outlet (49) for connection to an outlet line (43), a chamber (42) within the house (41), said chamber (42) forming a flow path between the entrance (40) and the outlet (49); - a retention tank (5) connected to the at least one top assembly's (4) outlet (49) by the outlet line (43); and - a pump (6, 6') connected to the retention tank (5) on the pump's (6, 6') suction side by a supply line (53), and said pump (6, 6') on the pressure side being connected to the at least one bottom sub (3) by an inlet line 33. A method of using the system (1) is described as well.
B08B 9/032 - Nettoyage des surfaces intérieuresÉlimination des bouchons par l'action mécanique d'un fluide en mouvement, p. ex. par effet de chasse d'eau
B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
B08B 9/027 - Nettoyage des surfaces intérieuresÉlimination des bouchons
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
45.
DOWNHOLE DEBRIS-COLLECTING TOOL HAVING AN IMPROVED VALVE
The invention relates to a downhole tool (100) for collecting debris in a petroleum well. The downhole tool (100) comprises: i) a housing (120) connected with a collection chamber (130-1, 130-2) for receiving debris, the housing (120) having an opening (105) for collecting the debris from the petroleum well, the opening (105) being in fluid communication with the collection chamber (130-1, 130-2) through the housing (120); ii) a rotatable shaft (110b) with transport blades (119) arranged within the housing (120) and extending from the opening (105) to the collection chamber (130-1, 130-2), the rotatable shaft (110b) being configured for transporting the debris from the opening (105) to the collection chamber (130-1, 130-2) in operational use; iii) an annular area (121) defined between the rotatable shaft (110b) and an inner wall of the housing (120), and iv) a valve (125) configured for keeping the debris in the collection chamber (130-1, 130-2), wherein the valve (125) is located within the housing (120) between the opening (105) and the collection chamber (130-1, 130-2), wherein the valve (125) further comprises a seal member (125s) with a movable part (125sm) being mounted in the annular area (121) and around the rotatable shaft (110b), wherein the valve (125) is opened when the movable part (125sm) moves in direction of the collection chamber (130-1, 130-2), wherein the valve (125) is configured such that the movable part (125sm) of the seal member (125s) is only movable in the direction towards the collection chamber (130-1, 130-2) when closed. The downhole tool of the invention provides a valve, which is easily opened, requiring a very small force, while at the same time providing a very good sealing effect when the seal member is closed.
E21B 27/04 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet les moyens pour ramasser ou déposer comportant des transporteurs à vis
E21B 27/00 - Récipients pour ramasser ou déposer des substances dans les trous de forage ou les puits, p. ex. cuillers pour ramasser de la boue ou du sableTrépans comportant des moyens pour ramasser des substances, p. ex. trépans à clapet
E21B 37/00 - Procédés ou appareils pour nettoyer les trous de forage ou les puits
46.
DOWNHOLE TRACTOR COMPRISING A HYDRAULIC SUPPLY LINE FOR ACTUATING HYDRAULIC COMPONENTS
The invention relates to a downhole tractor comprising a hydraulic supply line (200, 300) for actuating hydraulic components (160-1..160-4, 170-1..170-4). The downhole tractor further comprises a hydraulic power pack (100) coupled to the hydraulic supply line (200, 300), at least one hydraulic component (160-1, 160-2, 170-1, 170-2) and at least one further hydraulic component (160-3, 160-4, 170-3, 170-4, 520). Said hydraulic components (160-1..160..4, 170-1..170-4) are coupled to the hydraulic supply line (200, 300) in parallel and configured for being actuated by the hydraulic supply line (200, 300). The hydraulic supply line (200, 300) comprises a controllable valve (410-1, 410-2) placed at a location in between the at least one hydraulic component (160-1, 160-2, 170-1, 170-2) and the at least one further hydraulic component (160-3, 160-4, 170-3, 170-4, 520) such that a first part (200-1a, 300-1a, 300-1) of the hydraulic supply line (200, 300) is coupled to a second part (200-1b, 300-1b, 300-2) of the hydraulic supply line (200, 300) via the controllable valve (410-1, 410-2). The downhole tractor of the invention provides for a much better control of the downhole tractor and facilitates tuning the performance of the tractor to the actual needs.
E21B 23/14 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour déplacer un câble ou un outil manœuvré par câble, p. ex. pour les opérations de diagraphie ou de perforation dans les puits déviés
E21B 4/18 - Ancrage ou avancement dans le trou de forage
E21B 7/06 - Modification de la direction du trou de forage
brevets
