A system for controlling stress on seal areas is provided. The system includes a first component having a first seal surface, a second component having a second seal surface, and a seal disposed between the first seal surface and the second seal surface. The seal includes a negative thermal expansion (NTE) material and a positive thermal expansion (PTE) material. A plurality of seal surfaces including at least the first seal surface and the second seal surface define a sealing volume, which is bounded by the plurality of seal surfaces. The seal occupies approximately 85% to approximately 100% of the sealing volume.
A nested tubing hanger has a wellhead housing that defines a wellhead bore, an outer hanger installed within the wellhead bore of the wellhead housing that has a parent bowl that supports an inner hanger. A hanger engagement carried by the outer hanger is radially moveable between a release position and an engagement position. In the engagement position, the hanger engagement engages an engagement profile on an outer surface of the inner hanger to lock the inner hanger in the outer hanger. With the hanger engagement in a release position, the inner hanger is removeable from the outer hanger.
E21B 33/04 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits
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
A nested tubing hanger has a wellhead housing that defines a wellhead bore, an outer hanger installed within the wellhead bore of the wellhead housing that has a parent bowl that supports an inner hanger. A hanger engagement carried by the outer hanger is radially moveable between a release position and an engagement position. In the engagement position, the hanger engagement engages an engagement profile on an outer surface of the inner hanger to lock the inner hanger in the outer hanger. With the hanger engagement in a release position, the inner hanger is removeable from the outer hanger.
E21B 17/20 - Tubes de forage flexibles ou articulés
E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p. ex. dans la tour de forageAppareils pour faire avancer les tiges ou les câbles
A gate valve has a valve body defining a flow passage. The valve body has an inner cavity and a gate guide that traverses the flow passage. The valve body includes an upstream valve seat and a downstream valve seat on opposed sides of the gate guide, where each of the upstream valve seat and the downstream valve seat circumscribe the flow passage. A valve gate moves along the gate guide between an open position in which the valve gate engages the downstream valve seat and the upstream valve seat and permits fluid flow along the flow passage and a closed position in which the valve gate blocks fluid flow along the flow passage. A drain passage has an inlet in fluid communication with the inner cavity and an outlet in fluid communication with the flow passage downstream of the gate guide.
F16K 3/18 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation planesGarnitures d'étanchéité à cet effet avec dispositions particulières pour tenir écartées les faces d'obturation ou pour les presser l'une contre l'autre du fait du mouvement des éléments de fermeture
F16K 3/02 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation planesGarnitures d'étanchéité à cet effet
F16K 27/04 - Structures des logementsMatériaux utilisés à cet effet des tiroirs
A gate valve has a valve body defining a flow passage. The valve body has an inner cavity and a gate guide that traverses the flow passage. The valve body includes an upstream valve seat and a downstream valve seat on opposed sides of the gate guide, where each of the upstream valve seat and the downstream valve seat circumscribe the flow passage. A valve gate moves along the gate guide between an open position in which the valve gate engages the downstream valve seat and the upstream valve seat and permits fluid flow along the flow passage and a closed position in which the valve gate blocks fluid flow along the flow passage. A drain passage has an inlet in fluid communication with the inner cavity and an outlet in fluid communication with the flow passage downstream of the gate guide.
F16K 3/02 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture à faces d'obturation planesGarnitures d'étanchéité à cet effet
F16K 3/30 - Robinets-vannes ou tiroirs, c.-à-d. dispositifs obturateurs dont l'élément de fermeture glisse le long d'un siège pour l'ouverture ou la fermeture Détails
F16K 27/00 - Structures des logementsMatériaux utilisés à cet effet
F16K 39/00 - Dispositifs pour relâcher la pression sur les faces d'un joint d'étanchéité
F16T 1/38 - Purgeurs d'eau de condensation ou appareils similaires pour expulser un liquide hors de réservoirs contenant principalement des gaz ou des vapeurs, p. ex. conduits de gaz, conduits de vapeur, réservoirs Parties constitutivesAccessoires
6.
BIASED LUG CARTRIDGE, WEAR BUSHING WITH BIASED LUG CARTRIDGE, AND SYSTEM AND METHOD USING THE SAME
A wear bushing includes: a wear bushing body having one or more cavities formed therein; and one or more lug cartridges each disposed within a corresponding one of the cavities in the wear bushing body. Each lug cartridge includes: a biased lug configured to be transitioned between a first position in which the lug protrudes in a radially inward direction from an inner diameter of the wear bushing body and a second position in which the lug is retracted into the corresponding cavity of the wear bushing body; and a retainer configured to retain the biased lug in the second position.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Metal goods for use in drilling and completing oil and gas wells and in the production of oil and gas from wells, namely, valves, spools, and fittings connected to the top of a well Parts of oil and gas production system, namely, gate valves, ball valves, check valves, plug valves, globe valves, spools, and pipe fittings connected to the top of a well Oil well metal Christmas trees in the nature of an assembly of valves, spools, and fittings that control the flow of oil or gas out of a well
A cementing system and method for selectively providing bottom-up cementing and top-down cementing of a liner during a single downhole trip are provided. The cementing system has three configurations. A first configuration of the tool allows fluid flow through a central flowbore of the cementing tool, a liner hanger setting tool below the cementing tool, and the liner. A second configuration of the tool routes fluid from the central flowbore of the cementing tool to an annulus surrounding the liner hanger setting tool and the liner. A third configuration of the tool reestablishes flow through the central flowbore of the cementing tool and enables a dropped ball to reach the liner hanger setting tool.
A lockdown sleeve and a running tool that may be used to mstall the lockdown sleeve within a wellhead in a single trip are provided. The lockdown sleeve, may include two pieces that are rotatably coupled together via threads such that the axial length of the lockdown sleeve can he adjusted by rotation of one portion of the lockdown sleeve relative to the other. The running tool may lower the lockdown sleeve into the wellhead, actuate the lockdown sleeve to lock against an inner wall of the high-pressure wellhead housing and subsequently adjust the length of the lockdown sleeve so that the lockdown sleeve is fully landed on the easing hanger and applying any desired pre-load to the connection.
E21B 23/02 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour verrouiller les outils ou autres éléments sur des supports ou dans des retraits entre sections adjacentes du tubage
A tubing: hanger assembly with a shiftable annulus seal is provided. The shiftable annulus seal allows for selectively sealing the tubing hanger within a easing hanger, a wellhead, or a tubing head. The tubing hanger assembly also includes a secondary annulus flow path formed through the body of the tubing hanger. The shiftable annulus seal selectively opens/closes a relatively large flow path to the tubing string annulus for circulation of fluid through the tubing string and setting a -packer. The secondary annulus flow path facilitates monitoring and bleeding of pressure· front the annulus after the shiftable annulus seal is closed.
A release mechanism for a mechanical!y locked wiper plug system is provided. The release mechanism may utilize a shifting sleeve to rotate or pivot a release.sub, thus: disengaging a load shoulder and releasing the plug system, in some embodiments, the. plug system may be mechanically locked to a running tool via corresponding slotted load shoulders in the running tool and on a release sub. The release sub may he connected: to an actuation sleeve via shear screws. Furthermore, the actuation sleeve may contain a guide consisting of one or more helical slotted guides which interact with the release sub shear screws.
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 33/16 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage utilisant des bouchons pour isoler la charge de cimentBouchons à cet effet
12.
RELEASE MECHANISM FOR MECHANICALLY LOCKED WIPER PLUG SYSTEM
A release mechanism for a mechanical!y locked wiper plug system is provided. The release mechanism may utilize a shifting sleeve to rotate or pivot a release.sub, thus: disengaging a load shoulder and releasing the plug system, in some embodiments, the. plug system may be mechanically locked to a running tool via corresponding slotted load shoulders in the running tool and on a release sub. The release sub may he connected: to an actuation sleeve via shear screws. Furthermore, the actuation sleeve may contain a guide consisting of one or more helical slotted guides which interact with the release sub shear screws.
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 33/16 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage utilisant des bouchons pour isoler la charge de cimentBouchons à cet effet
A subsea wellhead assembly having an arrangement of primary well barriers provided in equipment that is located within the well and/or the wellhead housing is provided. All of the well barriers may be located within the tubing hanger and/or the production tubing string extending into the wellbore. The subsea wellhead assembly also includes a flowline connection body placed atop the wellhead housing and fluidly coupled to the tubing hanger. None of the primary barriers for the well are located in the flowline connection body.
Threaded connectors for tubular members having metal-to-metal seals are provided. The connectors have 'different shapes for the contact sealing surfaces of the first and second connectors, which may be male and female connectors. In particular, the contact sealing surfaces may have mismatched surface shapes. For example, the male connector may have a frustohemispherical sealing surface while the female connector may have a frustoconical sealing surface. The disclosed mismatched male and female curvilinear surfaces, along with the flexible male connector nose, facilitate a reliable threaded connection having a metal-to-metal seal. The mismatched surfaces may provide for a wide parabolic distribution of contact stresses along the metal-to-metal seal of the curvilinear sealing surfaces.
A liner hanger having one: or more enhanced Socking assemblies is provided. The liner hanger includes a liner hanger body, lower slips, upper slips, a packer cone, and a seal that seals an annulus between the liner hanger and an outer casing, The one or more enhanced locking assemblies may include: a packer cone locking assembly that prevents all components of the liner hanger from actuating until it is unlocked; a slips locking assembly that prevents the lower slips from being actuated until it is unlocked; guide rails that prevent. the lower slips and/or the upper slips from being wedged in a radially outward direction during run in; and a floating cone locking assembly that releases the packer cone from being coupled to a spacer of the liner hanger when it is unlocked.
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 23/06 - 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
Systems and methods for landing a tubing hanger in a wellhead, landing a tree on the wellhead, and making electrical and hydraulic couplings between the tree and the tubing hanger without having to orient the tree or the tubing hanger relative to each other are provided. This is accomplished using a seal sub that is coupled to the tree and lowered with the tree into contact with the tubing hanger located in the wellhead. The seal sub features an electrical conductor that facilitates electrical coupling of the tree to the tubing hanger. The tubing hanger and sea l sub may include a metal-to-metal and elastomeric seal arrangement designed to seal off electrical and hydraulic connections between these components when, the tree is positioned within the wellhead.
E21B 33/04 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits
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
An mterventionless system and method: of detecting a downhole activation device are provided. The system includes a first detector disposed downhole in a fluid pathway and;a second detector disposed downhole of the first detector in the fluid pathway. In one exemplary embodiment, the detectors include a pair of ultrasonic transducers that generate signals indicative of fluid pathway flow. Differences in the signals between the detectors are indicative of the presence of the downhole activation device within the fluid pathway. The system also includes a deployment port disposed above the second detector from which the downhole activation device may be deployed into the fluid pathway.
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
18.
ULTRASONIC INTERVENTIONLESS SYSTEM AND METHOD FOR DETECTING DOWNHOLE ACTIVATION DEVICES
An mterventionless system and method: of detecting a downhole activation device are provided. The system includes a first detector disposed downhole in a fluid pathway and;a second detector disposed downhole of the first detector in the fluid pathway. In one exemplary embodiment, the detectors include a pair of ultrasonic transducers that generate signals indicative of fluid pathway flow. Differences in the signals between the detectors are indicative of the presence of the downhole activation device within the fluid pathway. The system also includes a deployment port disposed above the second detector from which the downhole activation device may be deployed into the fluid pathway.
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
19.
HYDRO-PNEUMATIC CYLINDER WITH ANNULUS FLUID BYPASS
Systems and methods for pressure communication within a hydro-pneumatic cylinder are provided. The hydro-pneumatic cylinder generally includes a rod, a barrel coaxial to the rod, and a piston assembly disposed within the barrel and connected to the rod. The barrel is hollow to define a chamber, and the piston assembly is axially movable within the chamber to stroke the rod relative to the barrel. The hydro-pneumatic cylinder includes: a flow path formed axially through the rod of the cylinder. This flow path may allow for pressure communication between a low-pressure side of the cylinder and a pressure energized lower pin located at a distal end of the rod. The lower pin may be actuated, via this pressure communication to secure the end of the cylinder to a tension ring on a riser.
E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p. ex. dans la tour de forageAppareils pour faire avancer les tiges ou les câbles
E21B 41/00 - Matériel ou accessoires non couverts par les groupes
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
Systems: and methods for decreasing bending stress in flange bolting for a connection between a flange and an adjacent piece of equipment is provided. The flange connection includes a single flange with multiple bolts extending: therethrough. The bolts are threaded into the adjacent piece of equipment at one end, and a nut is disposed at an opposite end. of each bolt to provide a means for tightening and/or securing the flange connection:. The equipment to which the flange is attached may include subsea well equipment with relatively large outer diameters. The disclosed flange connection utilizes: an initial region of a counterbored (or unthreaded) hole in the mating equipment piece just prior to the start of the thread formed through the equipment, Additionally, a compound hub flange connection is disclosed to further reduce the bending stress on the bolts.
E21B 17/046 - AccouplementsJoints entre tige et trépan, ou entre tiges avec nervures, goupilles ou mâchoires et rainures complémentaires ou similaires, p. ex. accrochage à baïonnette
F16L 23/036 - Raccords à brides les brides étant raccordées par des organes tendus axialement caractérisés par les moyens de mise en tension, p. ex. colliers de serrage en forme de C ou boulons spécialement adaptés
F16B 7/18 - Assemblages de barres ou assemblages de tubes, p. ex. de section non circulaire, y compris les assemblages élastiques utilisant des éléments filetés
21.
REAL-TIME MONITORING OF MASS LOSS FROM EROSIVE FLOW
Systems and methods for continuously monitoring mass loss through flow erosion of a well equipment component are provided. The disclosed system includes a wear transducer mounted to the equipment component proximate a portion of the equipment component exposed to erosive fluid flow. The wear transducer includes a metal coupon including an elongated end that extends into a flowpath of the equipment component such that the elongated end is exposed to the erosive fluid flow. The wear transducer also includes an ultrasonic sensor disposed within the metal coupon. The ultrasonic sensor transmits ultrasonic signals through the metal coupon toward the elongated end and receives ultrasonic signal reflections reflected back from the elongated end.
G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
E21B 41/02 - Lutte contre la corrosion sur place dans les trous de forage ou dans les puits
G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
A system including a releasable connector having a housing and a split ring, and a complementary mandrel that is attachable/detachable from the connector, is provided. The mandrel is designed to be received into the housing such that a portion of the mandrel extends out of the housing for connection to a tool. The split ring is disposed in an annular space between the housing and the mandrel when the mandrel is in the housing. The split ring includes at least one set of threads and a detent formed on a radially internal surface, and the mandrel includes complementary threads. The threads on the split ring fully engage the complementary threads on the mandrel when the mandrel is in a particular axial position within the housing. The detent prevents the split ring from collapsing into engagement with the threads on the mandrel until the mandrel is in a desired axial position.
Systems and methods for proper orientation of the connections of a tubing hanger and a subsea assembly in a wellhead or tree are provided. The alignment is accomplished with the use of an orientation spool adaptor equipped with positional sensors and an orientation helix. Calibration of the positional sensors at the surface allows for orientation with simple vertical deployment. Positional sensors may provide real time data such as location, speed of installation and orientation back to the surface.
E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p. ex. dans la tour de forageAppareils pour faire avancer les tiges ou les câbles
E21B 19/24 - Dispositifs de guidage ou de centrage pour les tiges ou les tubes de forage
A system including a releasable connector having a housing and a split ring, and a complementary mandrel that is attachable/detachable from the connector, is provided. The mandrel is designed to be received into the housing such that a portion of the mandrel extends out of the housing for connection to a tool. The split ring is disposed in an annular space between the housing and the mandrel when the mandrel is in the housing. The split ring includes at least one set of threads and a detent formed on a radially internal surface, and the mandrel includes complementary threads. The threads on the split ring fully engage the complementary threads on the mandrel when the mandrel is in a particular axial position within the housing. The detent prevents the split ring from collapsing into engagement with the threads on the mandrel until the mandrel is in a desired axial position.
The present disclosure relates generally to downhole tubulars, and more particularly, to tubular expanders for downhole tubulars that have a detachable expansion ring, which can be detached from the tubular expander in the event that full expansion cannot be achieved or the tubular expander should get stuck in the downhole tubular being expanded. The detachable expansion ring may be attached to an end of an expansion cone that is disposed within a main body of the tubular expander. Tubing hangers are one exemplary downhole tubular device which can be expanded using the tubular expander in accordance with the present invention.
The present disclosure relates generally to downhole tubulars, and more particularly, to tubular expanders for downhole tubulars that have a detachable expansion ring, which can be detached from the tubular expander in the event that full expansion cannot be achieved or the tubular expander should get stuck in the downhole tubular being expanded. The detachable expansion ring may be attached to an end of an expansion cone that is disposed within a main body of the tubular expander. Tubing hangers are one exemplary downhole tubular device which can be expanded using the tubular expander in accordance with the present invention.
A self-locking packer carrier and a packer-down liner hanger system utilizing a self- locking packer carrier are provided. The self- locking packer carrier includes an integrated locking mechanism that locks the packer carrier directly to the packer cone after the sealing element is fully set. The integrated locking mechanism may include one or more compression splines extending from a packer carrier base in a radially outward direction to engage a casing after the attached sealing element has created a fluid tight seal, and a tooth profile formed along an inner diameter of the packer carrier base to lock the packer carrier to the packer cone in response to a compression force transferred to the base via the splines. The integrated locking mechanism is designed to eliminate backlash on the liner hanger system, increase vibrational resistance, accommodate liner stretch, withstand pump-out loads, and tolerate liner movement while maintaining sealing integrity.
E21B 33/129 - PackersBouchons à patins mécaniques pour accrochage dans le tubage
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
28.
GRIPPING TOOL FOR REMOVING A SECTION OF CASING FROM A WELL
A system including a gripping tool and a rotary cutting tool may be used to grip a section of casing while cutting through a lower portion of the casing in a single trip. The gripping tool includes a mandrel with a flow bore extending therethrough, a slip actuator received on the mandrel, at least one slip corresponding to the slip actuator, a housing disposed around at least a proximal end of the mandrel, and a collet assembly disposed proximate the at least one slip. The rotary cutting tool is coupled to the mandrel. The gripping tool also includes a bearing assembly that enables the mandrel and the rotary cutting tool to rotate while the at least one slip is remains stationary engaging an interior wall of a casing. The system may include a hydraulic power section to help with setting the slips and removing the cut casing from the wellbore.
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 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 31/16 - Outils de préhension, p. ex. pinces ou grappins combinés à des moyens de découpage ou de destruction
E21B 31/20 - Outils de préhension, p. ex. pinces ou grappins saisissant intérieurement, p. ex. harpons
E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
29.
GRIPPING TOOL FOR REMOVING A SECTION OF CASING FROM A WELL
A system including a gripping tool and a rotary cutting tool may be used to grip a section of casing while cutting through a lower portion of the casing in a single trip. The gripping tool includes a mandrel with a flow bore extending therethrough, a slip actuator received on the mandrel, at least one slip corresponding to the slip actuator, a housing disposed around at least a proximal end of the mandrel, and a collet assembly disposed proximate the at least one slip. The rotary cutting tool is coupled to the mandrel. The gripping tool also includes a bearing assembly that enables the mandrel and the rotary cutting tool to rotate while the at least one slip is remains stationary engaging an interior wall of a casing. The system may include a hydraulic power section to help with setting the slips and removing the cut casing from the wellbore.
E21B 31/16 - Outils de préhension, p. ex. pinces ou grappins combinés à des moyens de découpage ou de destruction
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 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
E21B 31/20 - Outils de préhension, p. ex. pinces ou grappins saisissant intérieurement, p. ex. harpons
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
Systems and methods for coupling a platform to a subsea wellhead are provided. The systems may include a riser extending between the platform and the subsea wellhead. The systems may further include an inner drilling riser tie-back connector ("ITBC") coupled to an inner riser and having an outer body and an inner body. The inner body is at least partially disposed within the outer body, and the inner body is translatable along a longitudinal axis of the ITBC between a first unlocked position and a second locked position. The systems may additionally include a locking mechanism for the ITBC.
The c-ring slip retention system (14) may use a lip portion (66) of a retention sleeve (24) to hold the c-ring slip (16) against a liner hanger body. The c-ring slip (16) may have a multi-load shoulder profile (22) that interfaces directly with a complementary profile formed in the liner hanger body (12). The disclosed retention system prevents the c-ring slip (16) from being prematurely extracted from a liner hanger body (12) while the liner hanger is lowered through a borehole. The c-ring slip retention system may include a first retention mechanism (26) and a second retention mechanism (28) used to secure the retention sleeve (24) to the liner hanger body (12).
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 33/04 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits
E21B 43/10 - Mise en place de tubages, filtres ou crépines dans les puits
Systems and methods for landing a tubing hanger in a wellhead and then orienting a tree (or spool, or flowline connection body) relative to the tubing hanger while landing the tree on the wellhead are provided. This alignment is accomplished without the use of either a tubing spool or a BOP stack with an orientation pin. The tubing hanger alignment devices may be used to orientate the tree as the tree is landed so that the couplings and stabs between the tree and the tubing hanger line up with each other just at the moment of landing.
E21B 33/04 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits
E21B 33/043 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits spécialement adaptées aux têtes de puits sous l'eau
A casing running tool (CRT) adapter (210) for use with a casing running tool (CRT) (110) is provided. The CRT adapter includes a top end (216) that is shaped and sized similar to a box of a casing joint and configured to interface with the CRT, and a bottom end (220) that is designed to interface either directly with a casing joint (212) or with well equipment (214) coupled to the casing joint. The CRT adapter (210) is used to transmit torque from the CRT (110) to the final casing joint, which is connected to well equipment such as a hanger or wellhead housing.
A liner hanger seals with casing string 8 having mill scale and supports a liner 98 within a well. The liner hanger includes a tubular anchor 48 and a tubular expander 40. The tubular anchor 48 may be positioned in the casing string 8 using an inner mandrel 10. An actuator assembly 6 forcibly moves the tubular expander 40 into the tubular anchor 48, expanding the tubular anchor 48 to grippingly engage the expanded tubular anchor 48 against the casing string 8 and to form a circumferential seal between metal sealing elements 52 on the tubular anchor 48 and the interior wall of the casing string 8. The metal sealing element 52 is oversized to provide rigidity, heat shrunk onto the tubular anchor 48, and abrasively dressed to remove excess material prior to installation of the liner hanger.
An expansion tool includes a housing and a hydraulic power section for stroking a first expander on a pulling mandrel through a bore of an expandable outer clad, the expansion tool including a ratcheting reaction assembly, having a ratchet rack and a ratcheting component thereon, that engages a proximal end of the outer clad to prevent axial movement of the outer clad as the first expander is drawn through a portion of the bore of the outer clad to expand the outer clad. The ratcheting reaction assembly remains engaged with the proximal end of the outer clad as the housing is repositioned uphole to permit staged expansion of the outer clad using the first expander. The expansion tool improves sealing and structure integrity of the expanded outer clad within the casing by maintaining the outer clad in a position throughout the staged expansion process.
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 23/08 - Introduction ou circulation d'outils par pression de fluide, p. ex. systèmes d'outils mis en place par un courant de fluide
E21B 43/10 - Mise en place de tubages, filtres ou crépines dans les puits
36.
DOWNHOLE TUBULAR EXPANSION TOOL AND METHOD FOR INSTALLING A TANDEM CLAD LINER
An expansion tool includes a housing and a hydraulic power section for stroking a first expander on a pulling mandrel through a bore of an expandable outer clad, the expansion tool including a ratcheting reaction assembly, having a ratchet rack and a ratcheting component thereon, that engages a proximal end of the outer clad to prevent axial movement of the outer clad as the first expander is drawn through a portion of the bore of the outer clad to expand the outer clad. The ratcheting reaction assembly remains engaged with the proximal end of the outer clad as the housing is repositioned uphole to permit staged expansion of the outer clad using the first expander. The expansion tool improves sealing and structure integrity of the expanded outer clad within the casing by maintaining the outer clad in a position throughout the staged expansion process.
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 23/08 - Introduction ou circulation d'outils par pression de fluide, p. ex. systèmes d'outils mis en place par un courant de fluide
E21B 43/10 - Mise en place de tubages, filtres ou crépines dans les puits
An expansion tool includes a housing and a hydraulic power section for stroking an expander on a pulling mandrel through a bore of an expandable liner, the expansion tool including a ratcheting reaction assembly, having a ratchet rack and a ratcheting component thereon, that engages a proximal end of the liner to prevent axial movement of the liner as the expander is drawn through a portion of the bore of the liner to expand the liner. The ratcheting reaction assembly remains engaged with the proximal end of the liner as the housing is repositioned uphole to permit staged expansion of the liner using the expander. The expansion tool improves sealing and structure integrity of the expanded liner within the casing by maintaining the liner in a position throughout the staged expansion process.
A gripping tool having a mandrel (50) reciprocatable within a slide member (20), the mandrel having a top connector (12) for connecting to a tubular string and a bottom connector (82) for connecting to acutting tool, the slide member having at least one radially outwardly biased friction member (30) and a slip cage (78) with at least one window through which a slip (77) is deployable, by movement of the mandrel within the slide member, to engage and grip a section of casing (99) to be removed from a well, the mandrel being rotatable by rotation of the tubular string to operate the cutting tool with the gripping tool in the gripping mode. After detachment of the section of casing by the cutting tool, the gripping tool and the gripped section of casing are pulled from the well. The gripping mode is restorable to a running position to reset the tool in the casing.
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
39.
GRIPPING TOOL FOR REMOVING A SECTION OF CASING FROM A WELL
A gripping tool having a mandrel (50) reciprocatable within a slide member (20), the mandrel having a top connector (12) for connecting to a tubular string and a bottom connector (82) for connecting to acutting tool, the slide member having at least one radially outwardly biased friction member (30) and a slip cage (78) with at least one window through which a slip (77) is deployable, by movement of the mandrel within the slide member, to engage and grip a section of casing (99) to be removed from a well, the mandrel being rotatable by rotation of the tubular string to operate the cutting tool with the gripping tool in the gripping mode. After detachment of the section of casing by the cutting tool, the gripping tool and the gripped section of casing are pulled from the well. The gripping mode is restorable to a running position to reset the tool in the casing.
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
40.
EXPANDABLE BALL SEAT FOR USE IN FRACTURING GEOLOGIC FORMATIONS
A ball seat is expanded and held in place within a casing using an expander. The ball seat includes one or more gripping elements and one or more sealing elements. An apparatus for expandably installing a ball seat in a casing includes a ball seat having one or more gripping elements and one or more elastomeric sealing elements disposed on an exterior of an expandable sleeve portion of the ball seat that is expanded by pulling an expander into the bore of the expandable sleeve portion of the ball seat. A mechanical fuse is predisposed to fail at a level of force sufficient to move the expander to the installed position. Failure of the fuse and further movement of a pulling mandrel positions a channel on the mandrel into alignment with a distal end of the collet, enabling the collet to collapse and pass through the expander for removal.
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
Fluid circulation valve (10) is provided for use with a well drilling operation, so that a drill joint may be added to or removed from the drill string while continuously circulating fluid into the well. Valve housing (12, 18) has a central flow path therein, a housing side port (87), and upper and lower threaded connectors for engagement with the drill joint and the drill string, respectively. A rotatable ball (30) is positioned within the flow path in the valve housing and a port (87) in the ball is in fluid communication with the housing side port (15) when the ball is closed. A coupling (60) is provided for engaging the valve housing and sealing between an interior of the valve housing and the radially external flow line, which passes fluid into the well when a drill joint is being connecting to the upper end of the valve.
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 seal assembly (30) and a running tool (20) are provided for sealing a casing annulus in a wellhead (14). A casing hanger (12) includes a radially external groove therein, and wellhead has a radially internal groove therein. A locking ring (36) may be actuated by the running tool to move into the internal recess in the wellhead and thereby axially connect the seal assembly and the wellhead. Another locking ring (40) is radially movable to connect the seal assembly to the casing hanger. The seal assembly seals the casing annulus while being interconnected with the wellhead and the casing hanger.
A wear bushing (10) and a running tool (32) are provided for a subsea wellhead assembly including a wellhead housing and a casing hanger. The wear bushing is landed on the casing hanger, and a connector (16) axially connects the wear bushing and the wellhead housing. The running tool is actuated to connect the wear bushing, such that at least a portion of the connector is received within a corresponding recess in an interior wall of the wellhead housing. A bushing / casing hanger latch (18) axially connects the wear bushing and the casing hanger.
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
A seal assembly (10) is provided for sealing between an interior surface (14) on a wellhead (12) and a tapered exterior surface (18) on a hanger (16). A unitary seal body (20) includes an upper portion for engagement with a force tool and a lower portion for sealing with the wellhead and the hanger. A first locking ring (24) is movable radially inward for securing the sealing assembly to the hanger, and a second locking ring (22) is movable radially outward for securing the seal assembly to the wellhead. An actuation member (60) including a plurality of downward extending fingers passing through slots in the seal body move downward through a portion of the body to force the first and second locking rings into engagement with the wellhead and the hanger.
The lockdown mechanism (10) and running tool (50) are provided for securing the casing hanger (12, 13) within the wellhead (14) and sealing the annulus between the casing and the wellhead. The lockdown ring (20) fixes the lockdown sleeve (40) to a wellhead in response to a lockdown piston (22). A first seal (24) energized by the running tool seals between the lockdown sleeve and the wellhead. Ball seat (30) is axially movable within the running tool, and a second seal also energized by the running tool (32) seals between the lockdown sleeve and the casing hanger.
E21B 33/043 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits spécialement adaptées aux têtes de puits sous l'eau
The riser tensioning system (10) includes a tensioning ring (18) for secured engagement with the riser and plurality of hydraulic cylinders (12) extending between the tensioning ring and a floating platform. A gimbal mechanism (42) acts between the platform and the riser to allow the riser axis to tilt relative to the floating platform. One or more elongate torque transfer members (38) extend between the tensioning ring and the gimbal mechanism and allow axial movement of the tensioning ring and the riser with respect to the floating platform.
E21B 19/09 - Appareils pour faire avancer les tiges ou les câblesAppareils pour augmenter ou diminuer la pression sur l'outil de forageAppareils pour compenser le poids des tiges spécialement adaptés au forage des formations sous l'eau à partir d'un support flottant utilisant des compensateurs de houle supportant le train de tiges
A liner hanger (10) is provided for supporting a liner in a well. An expandable tubular hanger (90) is positioned within the well and a running tool with a tool mandrel (34) passes fluid through the running tool. An actuator (12) forcibly moves the tubular expander to an expanded position. Release of the running tool from the liner may be accomplished with a retainer (84) and downward movement of the mandrel, with fluid pressure acting on a hydraulic piston (28) coupled with rotation of the mandrel, or by safety joint (68) along the tubular mandrel.
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 43/10 - Mise en place de tubages, filtres ou crépines dans les puits
A downhole hydraulically powered tool (10) is provided for moving an expander (36) in a well to radially expand a downhole tubular. The tool includes a plurality of fluid-powered pistons (16, 20) for axially stroking the expander relative to a tool mandrel (12), and one or more slips (52) for axially securing the tool in the well. The tool mandrel is rotatably secured to the tubular to rotate with the tubular, thereby rotating a bit (60) at the lower end of the tubular. The expander is moved axially downward in response to axial movement of the pistons to radially expand the tubular after at least a portion of the well is drilled with the bit and while the slips secure the tool in the well.
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
A liner hanger running tool (10) and method are provided for positioning a liner in a well bore. A tool mandrel (24) is supported from a running string, and a housing (44) surrounds the tool mandrel. A flow annulus between the mandrel and the housing allows fluid to pass upward through the running tool to a position above the liner. A hydraulic release mechanism (78, 79) is activated by fluid pressure within the mandrel to axially move a piston (50) positioned radially outward of the mandrel to release the running tool from the liner.
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
An overshot tool is provided for interconnecting and sealing between a lower tubular (C) in a well and an upper tubular (30). A tubular expander sleeve (36) and an overshot sleeve (26) are supported in a well on an upper tubular. The tool housing (60) encloses a plurality of axially stacked pistons (58, 68, 74), which generate an axial force to move the expander sleeve downward and radially expand a portion of a lower tubular to seal between an outer diameter of the lower tubular and an inner diameter of the overshot sleeve.
A tool 10 is provided for radially expanding a downhole tubular C, and includes a central tool mandrel 12 which functionally is part of a drill string or work string, a tubular expander 48 at the lower end of the tubular, and a downhole actuator 15 for forcibly moving the expander axially within the downhole tubular. Slips 20 are positioned for securing the tool within the tubular, so that the slips may be set, and the tool subsequently stroked to move the expander 48 and radially expand a length of the tubular. Upward pull on the work string may expand long portions of the downhole tubular.
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 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
52.
CONTINUOUS FLUID CIRCULATION VALVE FOR WELL DRILLING
Fluid circulation valve (10) is provided for use with a well drilling operation, so that a drill joint may be added to or removed from the drill string while continuously circulating fluid into the well. Valve housing (12, 18) has a central flow path therein, a housing side port (87), and upper and lower threaded connectors for engagement with the drill joint and the drill string, respectively. A rotatable ball (30) is positioned within the flow path in the valve housing and a port (87) in the ball is in fluid communication with the housing side port (15) when the ball is closed. A coupling (60) is provided for engaging the valve housing and sealing between an interior of the valve housing and the radially external flow line, which passes fluid into the well when a drill joint is being connecting to the upper end of the valve.
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
Methods and systems relating to subsea wellhead orientation are disclosed. I one embodiment, a method comprises providing a wellhead (112) with an orientation key (116) on an outer surface (118) and an opening (120) on an inner surface (122); providing the Christmas tree attached to a guide tube having an orientation profile (126) configured to engage the orientation key; providing a lockdown sleeve (113) with a mating profile (140) on an inner surface (138), and a protuberance (132) on an outer surface (134) configured to engage the opening on the inner surface of the wellhead; providing the tubing hanger (114) with a mating profile (136) on an outer surface (142) configured to engage the mating profile of the lockdown sleeve; moving the lockdown sleeve into engagement with the wellhead; moving the tubing hanger into engagement with the lockdown sleeve; and moving the Christmas tree into engagement with the wellhead and the tubing hanger.
A tool (10) is provided for radially expanding a downhole tubular (C), and includes a central tool mandrel (12), a tubular expander (48) at the lower end of the tubular, and a downhole actuator (15) for forcibly moving the expander axially within the downhole tubular. Slips (20) are positioned for securing the tool within a well, so that the slips may be set, and the tool subsequently stroked to move the expander (48) and radially expand a length of the tubular. Upward pull on the work string may expand long portions of the downhole tubular. Buttress threads (43) preferably support the tubular expander on the downhole tubular when run in the well.
Equipment for use in drilling, completing and/or producing
oil and gas wells; namely, drilling and production
templates, diverters for diverting the flow of drilling
fluid in a riser pipe beneath a production platform, well
tools for suspending casing within a well; namely, subsea
and surface wellheads, mudline hangers and connectors for
tying mudline hangers back to a production platform at the
water surface, and metal connectors for well casing; valves
and valve actuators for installation on oil well drilling
and completion equipment; liner hangers.
The safety valve includes a first generally tubular body 12 and a second generally tubular body 14 each having flow paths therein when the bodies are mated. A ball 20 rotates between open and closed position in a first seat 30 and a ball centering member 32 provided for engaging the ball. An outer actuator sleeve 40 is rotatable with respect to the first and second bodies, and a connecting member 50 acts between the actuator sleeve and the ball to rotate the ball.
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
F16K 17/168 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage ouvrant sur excès de pression d'un côtéSoupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté combinés avec des soupapes commandées à la main, p. ex. soupape à mécanisme de commande et soupape de sûreté combinées
A downhole tool includes a lock for maintaining a slip in a reduced diameter position when running the tool in the well, and selectively releases the slip to move radially outward to a set position to suspend an anchored portion of the tool within a downhole tubular. The tool includes a mandrel having a through passage, with a hydraulic port within the mandrel that is closed to mandrel internal pressure as the tool is run in the wellbore. A ball seat covers hydraulic ports in the mandrel. A ball may be dropped to seat and increase pressure to open the ports. A piston moves in response to mandrel internal pressure applied through the hydraulic port to unlock the locking device, such that further movement of the piston releases the slip from the reduced diameter position to the set position.
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
A downhole tool (100) includes a closure seat (116, 176) for seating with a closure, such as a, ball. Shear pins or other connectors temporarily limit axia movement of the closure seat which is initially housed within a restricte diameter portion of the central throughbore in the tool body. The closure sea may be lowered to engage a stop (108, 157), thereby positioning the seat withi an enlarged diameter bore portion of the tool and allowing radial expansion of closure seat to release the ball.
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
A circulation toot 10 for use downhole in a well includes a housing 12 having one or more bypass ports 16 for circulation between a bore in the housing and an annulus surrounding the housing. A sleeve 68 is axially movable within the housing, and axially spaced seals 70, 74 seal between the sleeve and the housing when the sleeve is in the closed position. A ball 52 is rotatably mounted to the sleeve, and includes a seat 54 about a central bore 55 in the ball for engagement with a plug. When the sleeve closes off the circulation ports 16, the ball is rotated to the open position with a substantially full bore diameter.
E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
E21B 33/14 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues pour la cimentation des tubes dans les trous de forage ou de sondage
E21B 34/06 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits
Bridge plug and setting assembly may be used in a well with a tubular therein to control flow through the tubular. A plurality of fluid powered units 16, 24 are suspended in a well from a work string 14 for exerting a driving force. A plug member 50 is suspended below the plurality of fluid powered units. The plug member 50 is axially movable relative to an expansion sleeve 40 in response to the driving force to radially expand the sleeve 40 into sealing engagement with both the plug member 50 and the tubular 12. A release mechanism 68 is provided for releasing the one or more fluid powered units from the plug member and the expansion sleeve once set in the well.
A liner hanger assembly seals with casing (22) and supports a liner (90) within a well. The tubular liner hanger body (50) and a tubular expander (40) may be positioned downhole at a desired depth on a running tool. An actuator assembly (12, 24) may forcibly move the tubular expander (40) into the liner hanger body (50), expanding the liner hanger body to seal and secure the hanger body to the casing string (22). The running tool may be released from the set liner hanger by an axially movable collet mechanism, such as ratchet ring (92) and a catch mechanism, such as threads (94). The running string thus need not be rotated to release from the set liner hanger.
E21B 23/02 - Appareils pour déplacer, mettre en place, verrouiller, libérer ou retirer, les outils, les packers ou autres éléments dans les trous de forage pour verrouiller les outils ou autres éléments sur des supports ou dans des retraits entre sections adjacentes du tubage
A whipstock assembly includes a tubular anchor 36 which is expanded into engagement with the casing string 8, and a tubular expander 24 which is forcibly moved into the tubular anchor to expand the tubular anchor downhole into secure engagement with the casing string. The tubular anchor and tubular expander remain downhole. An orientation sleeve 18 at the upper end of the expander 24 includes an orientation surface 20. A whipstock 70 engages the sleeve 18 to orient the whipstock face for diverting a tool into a hole in the side of the casing string. Once the whipstock 70 is removed from the well, the orientation sleeve may receive a sealing nipple 130 at the lower end of a production tubing string.
The liner hangar assembly seals with casing 8 and supports a liner 98 within a well. The tubular liner hanger 48 and a tubular expander 40 may be position downhole on a running tool at a desired depth along the casing string 8. An actuator assembly 6 may forcably move the tubular expander 40 into the tubular hanger, expanding the liner hanger to seal and secure the hanger against the casing string 8. After the running tool has been removed, a seal nipple may be sealed to the sealing sleeve of the tubular expander. A selectively releasable clutch 73 is provided for allowing rotation of the liner to rotate the liner with the running tool, and thereafter to disengage and release the running tool from the set liner hanger.
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 33/04 - Têtes de tubageSuspension des tubages ou des colonnes de production dans les têtes de puits
64.
TUBULAR EXPANSION FLUID PRODUCTION ASSEMBLY AND METHOD
An expansion-set fluid production assembly transfers well fluids from a casing string 12 to a production tubing string 112. A tubular anchor 72 and tubular expander 70 may be positioned downhole on a running tool at a desired depth along the casing string 12. An actuator assembly 10 may forcibly move the tubular expander 70 into the tubular anchor 72, expanding the tubular anchor 72 to seal and secure the tubular anchor 72 against the casing string 12. The running tool actuator assembly 10 may be removed, leaving the expanded tubular anchor 72 and tubular expander 70 downhole. A seal nipple 122 may be sealed with the tubular expander 70 and to the production tubing string 112. Fluids may than be recovered from the wellbore through the casing string 12, through the fluid production assembly, and into the production tubing string 112,
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 23/04 - 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 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 29/08 - Découpage ou déformation des tuyaux pour commander l'écoulement du fluide
E21B 29/10 - Remise en état des tubages de puits, p. ex. redressage
E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
E21B 43/10 - Mise en place de tubages, filtres ou crépines dans les puits
A whipstock assembly includes a whipstock body 8 and a neutralizer 11 releasably securable to the whipstock beady. A neutralizer has a center of gravity radially opposite the whipstock center of gravity. A combined whipstock/neutralizer center of gravity is substantially closer to the central axis of a whipstock body than the whipstock center of gravity. A detaching mechanism including a pin shears to release the neutralizer from the whipstock body, such as the neutralizer may be returned to the surface after the whipstock body has been set in the well.
