Device for measurement of fluid pressure by means of an arrangement of strain gauges (5) provided on a sensor head (1) arranged on an item (2) arranged to be exposed to a pressurized fluid (4) against an external sensor head surface (1b'), where the sensor head (1) comprises a fastening portion (1a) attached to the item (2), and a centre portion (1b) connected to the fastening portion by means of at least one flexible connecting element (1c), the arrangement of strain gauges (5) is attached to the centre portion (1b) of the sensor head (1) on an internal assembly surface (1b'') arranged in close proximity to a contact face (2d) on an end stopper (2b) which in an active condition encircles the arrangement of strain gauges (5), and the assembly surface (1b'') is inexposable for the pressurized fluid (4).
G01L 19/00 - Détails ou accessoires des appareils pour la mesure de la pression permanente ou quasi permanente d'un milieu fluent dans la mesure où ces détails ou accessoires ne sont pas particuliers à des types particuliers de manomètres
G01L 9/04 - Mesure de la pression permanente, ou quasi permanente d’un fluide ou d’un matériau solide fluent par des éléments électriques ou magnétiques sensibles à la pressionTransmission ou indication par des moyens électriques ou magnétiques du déplacement des éléments mécaniques sensibles à la pression, utilisés pour mesurer la pression permanente ou quasi permanente d’un fluide ou d’un matériau solide fluent en faisant usage des variations de la résistance ohmique, p. ex. de potentiomètre de jauges de contrainte à résistance
G01L 19/06 - Moyens pour empêcher la surcharge ou l'influence délétère du milieu à mesurer sur le dispositif de mesure ou vice versa
2.
METHOD FOR PRODUCTION OF VALVE BLOCKS VIA POWDER MOULDING
The invention is a method of producing a valve block by- powder moulding in a Hot Isostatic Pressing (HIP) process. A sheet mould 1 A/B with filling sprues 2 A-H is made, which is filled with metal powder through the filling sprues, vacuumized and sealed. The mould is placed in a HIP processing container for high-pressure inert gas, such as argon, at high temperature, such as 1100 °C, to be supplied for processing into a compact and homogenous material. Finally, the blank is worked externally and internally to its final design by surfaces being machined.
B22F 5/10 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser d'articles avec des cavités ou des trous, non prévue dans les sous-groupes précédents
F16K 27/00 - Structures des logementsMatériaux utilisés à cet effet
A device for a valve actuator (1) is described, the valve actuator (1) being provided with a slide nut (5C) surrounding a portion of an actuator slide (3B) and being in engagement with an external threaded portion arranged on the actuator slide (3B), the slide nut (5C) being axially fixed relative to the actuator slide (3B), and the actuator slide (3B) being in rotation-preventing engagement with a portion (5F) of an actuator mounting (5A) or a valve housing (2A), and the slide nut (5C) being connected to a driving motor (5K, 10) via transmission means (5H, 51, 5J; 5H, 6C, 6D, 6E). Also, a method of operating a valve (1) is described, the method including the step of: providing an axial displacement of the actuator slide (3B) by rotating a slide nut (5C) which surrounds a portion of an actuator slide (3B), is in engagement with an external threaded portion arranged on the actuator slide (3B) and is axially fixed relative to the actuator slide (3B), the rotation being provided with the help of at least one driving motor (5K, 10).
F16K 31/53 - Moyens mécaniques d'actionnement à engrenage
E21B 34/10 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par un fluide de commande provenant de l'extérieur du trou de forage
F15B 15/06 - Schéma mécanique de montage caractérisé par les moyens transformant le mouvement de l'élément entraîné par le fluide en mouvement de l'organe terminal qui est actionné pour la transformation mécanique d'un mouvement rectiligne en un mouvement non rectiligne
An electromechanically actuated, hydraulic control valve (1) with a double slide (4B, 6D) arranged in a valve housing (2A) which is in fluid communication with at least three hydraulic-fluid ports (2B, 2C, 2D), wherein a first and a second axially movable valve slide (4B, 6D) are, independently of each other, arranged to sealingly abut corresponding portions of a double valve seat (5A), each valve slide (4B, 6D) is provided with a slide nut (4C, 6E) which is in engagement with an external threaded portion on the valve slide (4B, 6D) and is connected via transmission means (4D, 4E, 4F; 6F, 6G, 6H) to an actuator (4G, 61), and to each valve slide (4B, 6D), a position sensor (4H, 61) is connected, arranged to indicate a rotational motion of the slide nut (4C, 6E).
F16K 31/02 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques
5.
UNDERWATER STUFFING BOX AND A METHOD FOR RUNNING A DRILL STRING THROUGH THE STUFFING BOX
The invention relates to a stuffing box (1 ) consists of an outer housing (2), an upper set (3) and a lower set (4) of support plates for a sleeve-shaped, flexible sealing element (5) enclosed by a liquid filled, pressurised annulus (26). The sets of support plates in the top (22) and bottom of the housing (24) respectively have an opening in the middle, exceeding the diameter of the tool joint (B"). The inner sealing element (5) seals radially against the drill string (B) and axially against the support plates with pressure assistance from the annulus (26) between the sealing element and the middle stuffing box housing. When the sealing element (5) is rotated by the drill string (B) the ends of the sealing element (5) abut the upper and lower support plate set (3, 4) respectively and seals against the pressure from the well and outside seawater pressure. Each of the upper and lower support plate sets (3, 4) comprise two halves (31, 33; 41, 43 respectively) connected to an actuator each (32, 34; 42, 44 respectively) arranged for radial displacement of the halves (31, 33; 41, 43). Each of the support plate halves (31, 33; 41, 43) comprise a cut-out arranged to be able to encircle the inside and the ends of the sealing element (5) comprise cast-in, ceramic elements.
A pressure reduction turbine (1) for a hydrocarbon well stream driving a hydraulic pump (2), and the turbine has two cog wheels (1A, 1B) mounted laterally to a well stream. A deflector plate (1L) is positioned at the well inlet to split and direct the well stream towards the outsides of the cogwheels and to drive them with opposite rotation. The turbine is designed to give a large pressure drop. Ceramics is used in the turbine housing (1C), in the turbine inlet (ID) and in the turbine outlet (1H), to withstand erosion wear. A hydraulic pump (2) is supplied with collective torque via the turbine shaft (IE), supported by two journal bearings (IF and IN) and is connected to the pump via a dynamic sealing arrangement (3). Alternatively the torque from the turbine may be transmitted by to the pump without the dynamic seal, via a magnet coupling. In an underwater implementation the turbine 1 with the pump are equipped with an arrangement for connection or disconnection via an underwater tool system, so that the equipment may be pulled and installed from a surface vessel. The hydraulic pump leads hydraulic oil at high pressure out into a piping system (6) where hydraulic energy, possibly from several such power sources, is led to a common hydraulic motor (7) driving an electric generator (8). In a surface implementation the generator is positioned in a non-explosive environment, for example in an overpressure container (11).
H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
7.
METHOD FOR SAMPLING AND ANALYSIS OF PRODUCTION FROM A SUBSEA WELL FOR MEASURING SALINITY OF PRODUCED WATER AND ALSO VOLUMETRIC RATIO BETWEEN LIQUID FRACTIONS
The Invention concerns a permanent subsea sampling and analysis system (1), which typically is integrated into a replaceable equipment module for a choke valve (2) of a subsea production well. The analysis system (1) separates a sample into liquid fractions consisting of crude oil, condensate and produced water and then measures the salinity of the water as well as the volumetric ratio between the liquid fractions. With this equipment it will be possible to check, at regular intervals, the development in salinity of the produced water from a singular well without disturbing the production from the well. The information from the analysis system (1) may be used to update the calibration set-up of the multiphase flow meter of the well, or to reveal a possible water breakthrough resulting from water injection into a reservoir, or for other reservoir analyses. Due to the analysis equipment becoming permanently installed on the subsea well equipment, costs of taking samples via intervention operations from vessels are avoided, also avoiding temporary shut-down of production from other wells producing to a joint subsea manifold for the purpose of investigating which well may possibly have experienced water breakthrough.
G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
B01D 17/032 - Séparation de liquides non miscibles par gravité, dans un bac de décantation muni d'un dispositif pour enlever au moins un des liquides séparés
E21B 43/36 - Aménagements pour la séparation installés sous l'eau
E21B 47/10 - Localisation des fuites, intrusions ou mouvements du fluide
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
G01N 27/06 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la résistance d'un liquide
8.
PRESSURE-REDUCING TURBINE WITH A POWER GENERATOR DISPOSED IN A WELL STREAM
The invention concerns subsea power generator with a pressure-reducing turbine provided with a closed turbine and generator, wherein flanges on the inlet side (4) and the outlet side (5) of the turbine are connected to a piping system in a well stream. The turbine is provided with two meshing gear wheels (6, 7) disposed transverse to the well stream. A deflector plate (8) disposed at the inlet (4) splits the well stream so that the well stream is directed toward the outsides of the two gear wheels (6, 7) driving the gear wheels (6, 7) in opposite directions of rotation. A power generator (16) is supplied with the total torque via a shaft (10) connected to one of the gear wheels (7) and supported in a roller bearing (12). The unit is designed to cause a large pressure drop, is disconnectable and can be pulled to surface.
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
E21B 43/01 - Procédés ou dispositifs pour l'extraction de pétrole, de gaz, d'eau ou de matériaux solubles ou fusibles ou d'une suspension de matières minérales à partir de puits spécialement adaptés à l'extraction à partir d'installations sous l'eau
9.
STUFFING BOX FOR ACCOMMODATING GEOMETRICAL DIFFERENCES BETWEEN PASSING, ROTATING DRILL PIPES AND PIPE COUPLINGS
The invention consists of a cylindrical hollow stuffing box (1) for accommodating geometrical differences between rotating, passing drill pipes (B) and pipe connectors (B' ') the diameter of which exceeds that of the drill pipe. The stuffing box (1) consists of an outer housing (2), an upper ceramic disc (3) with an upper set of sipes (4), a lower ceramic disc (5) with a lower set of sipes (6), an outer packer (7) and an inner packer (8) surrounded by an annulus (9). The inner packer (8) seals against the drill pipe (B) such that the packer (8) during operation rotates together with the passing drill pipe (B). The discs (3,5) are fastened to top and bottom of the housing (2) and have an opening, the diameter of which exceeds the diameter of the pipe connectors (B' '). The packer unit with the integrated sipes (4,6) will also be rotated by the drill string during operation, as the sipes (4,6) abut the discs (3,5). When the pipe connector (B' ') is to pass down through the stuffing box (1), then firstly the upper sipes (4) and then the packer (8) will be forced out into the annulus (9), and as soon as the pipe connector (B' ') has passed the upper sipes (4) these will be forced back by the pressure in the annulus (9) whereafter the lower sipes (6) are correspondingly activated.
The invention relates to a downhole pressure- and vibration- measuring device integrated in a pipe section (1) as part of a production tubing (20). The sensor housing (2) of the measuring device with sensors has a two-part clamp (3) on the upper part of the sensor housing (2), from where an electrical multi- conductor cable connection (10) from at least four, preferably six, nipples in a tube (9) is clamped along the production tubing (20) with bushings through equipment installed in the wellhead to sensors with an electronics and control unit (12) above the wellhead. Evenly- spaced radially in an annular space (5) are a first set of strain gauges (7) attached to the outside wall of the production tubing (20) and a second set of strain gauges (8) attached on the inside of the external wall of the sensor housing (2). Strain gauges (7, 8) are connected by glass penetrators (4) of electrical conductors in cable tubes (9A) terminated in the tubing hanger (21) to an electronics unit (11) and a control unit (12). For the measuring of temperatures, a thermometer will be integrated. Pressure -measurement signals also measure vibration in the production tubing (20).
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
E21B 47/06 - Mesure de la température ou de la pression
11.
METHOD FOR PRODUCTION OF AN ACID PROOF, SEEMLESS PRESSURE VESSEL
The invention relates to a method for production of a cylindrical acid proof, seamless pressure vessel having hemispherical top and bottom by powder moulding in an HIP (Hot Isostatic Pressing) process. Sheet metal moulds are produced constituting an internal shell (1), lower part of an external shell (3), upper part of an external shell (4) with filling spout (5) with corresponding top and bottom. Distance pins (2) decide the wall thickness and are mounted outward from the internal shell which is led down into the lower part of external shell (3) whereafter shell part (4) with filling spout (5) closes the volume be-tween the internal and external shells which is then filled with powder through the filling spout (5). The pressure vessel is placed in an HIP-process container for vacuuming, sealing, supply of high-pressure inert gas such as argon, at high temperature such as 1000 °C, for processing together with the distance pins (2) to a compact and homogenous material.
The invention relates to a method for two-step separation of water, salt and particles from a hydraulic fluid by the use of a control unit (1). The hydraulic fluid is carried into a reservoir oil tank (4) with an electrostatic coalescer (3) provided with a high- voltage transformer (2) with direct current to two electric grids (43, 44) whose electrostatic field gathers water into drops which settle into a collecting tank (5). The hydraulic fluid is circulated to a filter module (9) for removing any remaining water, salt and particles in filter elements (92) connected in parallel, having hygroscopic cellulose fibres which swell until saturation, the swelling being measured by a sensor (93) measuring the degree of saturation, alternatively conductivity.
B01D 17/06 - Séparation de liquides les uns des autres par l'électricité
B01D 39/04 - Substance organique, p. ex. cellulose, coton
E21B 43/36 - Aménagements pour la séparation installés sous l'eau
C10G 33/02 - Déshydratation ou désémulsification des huiles d'hydrocarbures par des moyens électriques ou magnétiques
B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
13.
METHOD OF USING NEW FLUSHING PORTS DURING CLEANING OF A PISTON ACCUMULATOR
The invention relates to a method of using new flushing ports (IA7 IB) when cleaning a piston accumulator (7). Dirty hydraulic oil is returned out via the main port (2) and a return passage (9) until a cleanness grade has been reached. Clean hydraulic oil is forced into the piston accumulator (7) via the axial bores (3A, B) of the flushing ports (IA, B) and further in sloping bores (3C, D), bringing the hydraulic oil into the volume (8) in an upward, tangential direction below the piston (5), into a flushing circulation. By reducing the gas pressure on the gas side (4) of the piston (5) in relation to flushing pressure input from a valve (6), a volume (8) is created on the oil side between the piston (5) and the end bottom (3). The return passage (9) is closed and the piston (5) is brought into its upper position, so that an internal cylinder wall (10) is cleaned. Upon pressure build-up, the return passage (9) is opened, and the piston (5) returns to its end position on the oil side while the supply of clean hydraulic oil is maintained, and the operation is repeated until a cleanness grade has been achieved.
F15B 21/04 - Mesures particulières prises en rapport avec les propriétés du fluide
F15B 1/24 - Accumulateurs utilisant un coussin de gazDispositifs de remplissage de gazIndicateurs ou flotteurs à cet effet avec des moyens de séparation rigides, p. ex. pistons
B08B 9/00 - Nettoyage d'objets creux par des procédés ou avec un appareillage spécialement adaptés à cet effet
The invention relates to a method for measuring and controlling a fluid flow in a pipe system for liquid transport, such as oil flow during buoy loading, wherein there in each end of a the pipe system is spliced in a sensor (1) consisting of a pipe section (2) with a reinforced rubber bellows (3) positioned as a restriction within the transport pipe. The rubber bellows (3) is forced radially outward when there is oil flowing through the transport pipe, and compresses a gas filled volume in a pressure vessel (4) via a pipe connection (4B) in communication with an annulus (5), and a pressure transmitter (6A/B) gives signals to a control system (7). The sensor (1) on the platform and the tanker vessel measures relative changes in the liquid flow between the two measuring points, as the measurements from the tanker vessel is received via a telemetry system, and the signals from the two measuring points are compared continuously by the control system on the platform, which triggers an alarm and shuts down the loading process automatically at deviation in the measurement on the tanker vessel compared to the reference measurement on the platform.
G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour raccords ou joints d'étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes
F17D 5/02 - Prévention, interception ou localisation des pertes
15.
AN ACTUATOR FOR A PILOT FOR HYDRAULIC CONTROL VALVES
An actuator for a pilot for a hydraulic control valve including a direct-current servo-motor (1) provided with a high-ratio gear (4) and arranged to be operated by a battery (2) with an associated battery charger (13), and an oil return port (10), a pilot port (11) and a hydraulic supply (12) and via the gear (4), the servo-motor (1) is arranged to move a valve stem (5) which bears via a first valve ball (7) on a spring-loaded pilot needle (8) which bears, opposite the first valve ball (7), on a second spring-loaded valve ball (7), a spring and a return spring (9) being arranged to move the valve balls (7) towards the pilot needle (8), and a microprocessor with an associated controller (3) being arranged to determine the position of the valve stem (5) by registration of the rotational position of the servo-motor; and, if a control signal is interrupted, the controller (3) is arranged to drive the valve stem (5) into a predetermined position by means of current from the battery (2).
F16K 31/04 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un moteur
F15B 13/04 - Dispositifs de distribution ou d'alimentation du fluide caractérisés par leur adaptation à la commande de servomoteurs pour utilisation avec un servomoteur unique
16.
A METHOD OF PRODUCING VARIOUS MASSIVE BLANKS OF ENCAPSULATED PIPE CONNECTIONS BY VIRTUE OF POWDER MOULDING
The invention concerns a method of producing various massive blanks of encapsulated pipe connections by pressure moulding metal powder material, such as an encapsulated manifold (1) on a base plate (2). In an open mould of steel plates are installed a planned network of both curved and straight pipes (4) both for fluids, via a series of control valves (3) to a control module for hydraulic couplings, and for through pipes (5) for couplings for hydraulic and electrical distribution. From holes in the mould walls pipe ends are extending, which are sealed to the holes in the mould plates. External plates entered on to pipe connectors and locked before the HIP process hold the geometry of the piping network. When the network of pipe and cable connections is estab¬ lished, the top plate is sealed to the mould. A flexible steel bellows is fastened to the top plate, and is used to fill the mould with casting powder and for replenishing to eliminate volumetric shrinkage in the mould during the HIP process, whereafter the mould is removed, and the cast blank is machined before external pipe network and cable connections are connected.
B22F 7/08 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p. ex. pour former des outils à embouts rapportés avec une ou plusieurs parties non faites à partir de poudre
B22F 5/10 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser d'articles avec des cavités ou des trous, non prévue dans les sous-groupes précédents
17.
A DEVICE FOR AN INERT GAS INSTALLATION ON A FLOATING VESSEL
A device for an inert gas installation (5) on a floating vessel, comprising one or several tanks (1) arranged in a manner allowing filling of an explosive liquid (11) via suitable means (13, 14) associated therewith, and/or a gas (12), wherein an air inlet system (3) is connected to the tank (1), wherein the inert gas installation (5) is provided with a shutoff valve (51) arranged to automatically allow closing of an inert gas supply conduit (52), wherein the tank (1) is provided with a sensor (53) arranged to respond to a defined, ambient moisture and pressure level, the sensor (53) also being connected to a valve control system (7), thereby providing control signals to the valve control system (7). The invention also concerns a method of using the device.
B65B 25/08 - Emballage des tranches ou morceaux de viande, fromages ou autres produits mous ou collants de formes particulières entre des couches ou des bandelettes de feuilles ou bandes, p. ex. dans des bandes pliées en zigzag
B63B 25/10 - Installations de chargement, p. ex. pour le rangement ou l'arrimageNavires spécialisés à cet effet pour chargement de marchandises fluides ouvertes à l'air ambiant
A62C 3/10 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les véhicules, p. ex. les véhicules routiers dans les navires
F17C 13/12 - Aménagements ou montage de dispositifs pour prévenir ou atténuer les effets d'explosion
brevets