A swivel apparatus (10) for use in a wellbore comprises a housing (12) and a mandrel (14) extending within the housing (12). The swivel apparatus (10) comprises a rotary lock arrangement (36) comprising a first rotary connector portion (32) and a second rotary connector portion (43), the rotary lock arrangement (36) configurable between: an active configuration, wherein the first rotary connector portion (32) and the second rotary connector portion (43) are engaged to rotatably connect the housing (12) and the mandrel (14); and an inactive configuration, wherein the first rotary connector portion (32) and the second rotary connector portion (43) are disengaged to permit relative rotation between the housing (12) and the mandrel (14). The swivel apparatus comprises an actuator assembly (35) for configuring the rotary lock arrangement (36) between the active configuration and the inactive configuration.
A downhole torque reducer comprises a mandrel defining a circumferentially continuous inner bearing race and a bearing sleeve defining a circumferentially continuous outer bearing race, the bearing sleeve being mounted on the mandrel such that the outer bearing race of the bearing sleeve circumscribes the inner bearing race of the mandrel. A rolling bearing arrangement is radially interposed between the inner bearing race of the mandrel and the outer bearing race of the bearing sleeve to permit the bearing sleeve and the mandrel to be rotatable relative to each other.
A wellbore percussive drilling apparatus comprises a support and a transmission shaft axially moveable relative to the support in reverse first and second directions (i.e., the second direction is opposite to the first direction), wherein the first direction corresponds to a direction of drilling. The transmission shaft is configured to be connected to a drill bit and be engaged with a percussive drive such that the percussive drive can repeatedly apply axial impulsive forces on the transmission shaft in the first direction. The apparatus includes a depth of cut control mechanism for providing a predetermined limit of permitted axial movement of the transmission shaft relative to the support in the first direction in response to each applied axial impulsive force.
A downhole drag reducing apparatus 18 comprises a mandrel 20 and a bearing sleeve 24 mounted on the mandrel 20, such that the mandrel 20 and bearing sleeve 24 are rotatable relative to each other. The bearing sleeve 24 defines a bore wall engaging surface. The apparatus 18 comprises a reciprocating piston 23 mounted within a piston housing 25 to define a piston chamber 27. The apparatus 18 further comprises a rotary valve assembly 29 operated by relative rotation between the mandrel 20 and the bearing sleeve 24 to cyclically pressurise and depressurise the piston chamber 27 to provide reciprocating movement of the reciprocating piston 23 and the generation of vibration within the apparatus 18.
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
E21B 34/12 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des tubages ou des colonnes de production
A reciprocating drive apparatus (10) comprises a housing (12) and a mandrel (14), wherein the mandrel (14) and the housing (12) are configurable to be rotated relative to each other. The apparatus (10) further comprises a reciprocating piston (16) mounted within a piston housing (18) to define a piston chamber (20a), wherein the piston (16) is moveable in reverse first and second axial directions (A,B), and a rotary valve assembly (24) comprising a valve inlet (28) for communicating with a pressure region (P) and a valve exhaust (30) for communicating with an exhaust region (E). The rotary valve assembly (24) is operated by relative rotation between the mandrel (14) and the housing (12) to be cyclically reconfigured between a pressure configuration and an exhaust configuration. When in the pressure configuration the piston chamber (20a) is in pressure communication with the valve inlet (28) and isolated from the valve exhaust (30) to permit the piston to move in the first axial direction (A) in accordance with the piston chamber being pressurised via the valve inlet (28). When in the exhaust configuration the piston chamber (20a) is isolated from the valve inlet (28) and in pressure communication with the valve exhaust (30) to permit the piston chamber to be depressurised and the piston (16) to move in the second axial direction (B). Movement of the piston (16) in at least one of the first and second axial directions (A,B) generates an applied force within the apparatus (10) and/or an applied force output from the apparatus (10).
E21B 1/24 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide
E21B 31/113 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage fonctionnant hydrauliquement
A swivel (100) is described comprising a first swivel member (112) comprising a first load shoulder (116) and a second swivel member (115) comprising a second load shoulder (118). The first and second swivel members are rotatable relative to each other. A deformable bearing component (142) is provided within a cavity (140) defined between the first and second load shoulder (116, 118). The deformable bearing component (142) facilitates load transmission between the first and second load shoulders (116, 118) and is deformable to accommodate variations in alignment between the first and second load shoulders (116, 118).
A swivel apparatus for use in a wellbore comprises a housing and a mandrel extending within the housing. The mandrel and the housing are axially moveable relative to each other between a first relative axial position in which the mandrel and housing are rotatable relative to each other; a second relative axial position in which the mandrel and housing are rotatable relative to each other; and a third relative axial position, intermediate the first and second relative axial positions, in which the housing and mandrel are rotatably coupled together.
A downhole torque reducer comprises a mandrel defining a circumferentially continuous inner bearing race and a bearing sleeve defining a circumferentially continuous outer bearing race, the bearing sleeve being mounted on the mandrel such that the outer bearing race of the bearing sleeve circumscribes the inner bearing race of the mandrel. A rolling bearing arrangement is radially interposed between the inner bearing race of the mandrel and the outer bearing race of the bearing sleeve to permit the bearing sleeve and the mandrel to be rotatable relative to each other.
A downhole drag reducing apparatus (18) comprises a mandrel (20) and a bearing sleeve (24) mounted on the mandrel (20), such that the mandrel (20) and bearing sleeve (24) are rotatable relative to each other. The bearing sleeve (24) defines a bore wall engaging surface. The apparatus (18) comprises a reciprocating piston (23) mounted within a piston housing (25) to define a piston chamber (27). The apparatus (18) further comprises a rotary valve assembly (29) operated by relative rotation between the mandrel (20) and the bearing sleeve (24) to cyclically pressurise and depressurise the piston chamber (27) to provide reciprocating movement of the reciprocating piston 23 and the generation of vibration within the apparatus (18).
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 34/12 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des tubages ou des colonnes de production
A reciprocating drive apparatus (10) comprises a housing (12) and a mandrel (14), configurable to be rotated relative to each other. The apparatus further comprises a reciprocating piston (16) mounted within a piston housing (18) to define a piston chamber (20a), wherein the piston is moveable in reverse first and second axial directions (A,B), and a rotary valve assembly (24) comprising a valve inlet (28) for communicating with a pressure region (P) and a valve exhaust (30) for communicating with an exhaust region (E). The rotary valve assembly (24) is cyclically reconfigured between a pressure configuration and an exhaust configuration. In the pressure configuration the piston chamber (20a) is in pressure communication with the valve inlet (28) and isolated from the valve exhaust (30) and in the exhaust configuration the piston chamber (20a) is isolated from the valve inlet (28) and in pressure communication with the valve exhaust (30).
E21B 7/24 - Forage utilisant des moyens vibrants ou oscillants, p. ex. des masses déséquilibrées
E21B 17/10 - Protecteurs contre l'usureDispositifs de centrage
E21B 28/00 - Dispositions pour la génération de vibrations pour les trous de forage ou les puits, p. ex. pour activer la production
E21B 34/12 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des tubages ou des colonnes de production
E21B 31/113 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage fonctionnant hydrauliquement
An apparatus for cyclically releasing axial load comprises a control mechanism including a control member radially moveable between a load retaining position in which the control mechanism provides an axial support to a load member to allow the load member to be axially loaded against the control mechanism, and a load release position in which the control mechanism removes the axial support to the load member to allow axial load applied on the load member to be at least partially released. A mandrel carrying a control cam is provided, wherein the control cam cooperates with the control member during relative rotation between the mandrel and the control mechanism to cause the control member to cyclically move radially between its load retaining position and load release position.
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
A thrust bearing is described comprising first and second bearing assemblies (15, 17) rotatable relative to each and a plurality of axially arranged bearing stages (14a, 14b) formed between the first and second bearing assemblies (15, 17). Each bearing stage comprises a first load shoulder (16) provided on the first bearing assembly (15), a second load shoulder (18) provided on the second bearing assembly (17), a bearing structure (30) defined between the first and second load shoulders; and an extrudable component (32) forming part of the bearing structure. Wherein axial load applied between the first and second bearing assemblies (15, 17) in a first relative axial direction is transmitted between respective pairs of first and second load shoulders via the extrudable components (32) of respective bearing structures (30). The extrudable components (30) provide for load balancing between each bearing stage (14a, 14b).
A swivel (100) is described comprising a first swivel member (112) comprising a first load shoulder (116) and a second swivel member (115) comprising a second load shoulder (118). The first and second swivel members are rotatable relative to each other. A deformable bearing component (142) is provided within a cavity (140) defined between the first and second load shoulder (116, 118). The deformable bearing component (142) facilitates load transmission between the first and second load shoulders (116, 118) and is deformable to accommodate variations in alignment between the first and second load shoulders (116, 118).
F16C 23/04 - Paliers à contact lisse à autoréglage
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 17/08 - Paliers à contact lisse pour mouvement de rotation exclusivement pour charges axiales uniquement pour porter la partie extrême d'un arbre ou d'un autre organe, p. ex. crapaudines
F16C 19/12 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges axiales principalement pour recevoir l'extrémité d'un arbre ou d'un autre organe, p. ex. crapaudines
F16C 27/04 - Roulements à billes ou à rouleaux, p. ex. à organes de roulement élastiques
A jarring apparatus includes first and second jarring assemblies rotatable relative to each other. A first impact surface is provided on the first jarring assembly and a second impact surface is provided on the second jarring assembly, wherein, in use, the first and second impact surfaces are biased together. A first lifting structure is rotatably fixed relative to the first jarring assembly and a second lifting structure is rotatably fixed relative to the second jarring assembly, the first and second lifting structures being configured to cooperate during relative rotation therebetween to cause cyclical relative displacement in one axial direction to define a lifting phase and relative displacement in a reverse axial direction to define a dropping phase. The first and second lifting structures are axially fixed relative to their associated jarring assembly during the lifting phase to provide axial separation between the first and second impact surfaces, and the second lifting structure is axially released relative to the second jarring assembly prior to initiation of the dropping phase to permit the first and second impact surfaces to be axially impacted together.
E21B 31/113 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage fonctionnant hydrauliquement
A jarring apparatus includes first and second jarring assemblies which are axially moveable relative to each other between first and second axial configurations, and a thrust assembly interposed between the first and second jarring assemblies to limit relative axial movement therebetween at the second axial configuration and permit axial loading in one axial direction to be transferred between the first and second jarring assemblies via the thrust assembly. The apparatus further includes a jarring mass axially moveable within the jarring apparatus in reverse first and second directions upon relative rotation between the first and second jarring assemblies.
E21B 31/113 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage fonctionnant hydrauliquement
A thrust bearing comprises a mandrel and a bearing assembly mounted axially along the mandrel. The bearing assembly comprises a bearing housing and a bearing piston axially and rotatably mounted relative to each other, and a plurality of axially distributed bearing piston chambers defined between the bearing housing and the bearing piston, said bearing piston chambers configured to receive a bearing fluid for use in transmitting axial load between the bearing housing and the bearing piston when the bearing assembly is loaded in a first axial direction. The mandrel and the bearing assembly are axially moveable relative to each other in the first axial direction between a first configuration in which the mandrel is axially disengaged from the bearing assembly, and a second configuration in which the mandrel axially engages and loads the bearing assembly in the first axial direction. The mandrel and at least a portion of the bearing assembly are rotatable relative to each other at least when the mandrel and the bearing assembly are in their second configuration.
A method for use in retrieving casing from a wellbore comprises running a tool string having a casing cutter, a casing anchor and a jarring apparatus into the cased wellbore, operating the casing anchor to anchor the tool string to the casing and operating the casing cutter to cut through the casing to divide an upper casing portion from a lower casing portion. The method further comprises applying tension to the tool string to apply a pulling force on the upper casing portion and to configure the jarring apparatus into a jarring configuration, and generating repeated jarring forces within the jarring apparatus while applying tension within the tool string.
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 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
A downhole jarring apparatus for use in jarring an object in a bore comprises a first jarring portion including a first impact surface and a second jarring portion including a second impact surface. The apparatus includes a rotatable jarring arrangement operable to translate a rotational drive movement to cause relative axial movement of the first and second impact surfaces to establish axial impact therebetween.
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
E21B 31/113 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage fonctionnant hydrauliquement
E21B 31/00 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Machines, machine tools and drilling equipment, drilling
machines and oil and gas well drilling tools, well drilling
machines, tools for drilling oil and gas wells, drilling
machines and parts thereof, all for use in the exploration
and production of oil, gas and of minerals; hydraulic and
mechanical impacting apparatus, equipment and tools for use
in oil and gas drill wells; drilling apparatus for mineral
exploration; impact enhancing oil and gas well drilling
tools for use in the drilling and completion of oil and gas
drill wells; impact drills [machines or parts of machines];
jarring equipment, apparatus and tools for use in the
drilling and completion of oil and gas drill wells; parts
and fittings for use with the aforesaid goods. Repair, installation and maintenance services, namely,
conditioning, assembly, operation as well as rental of oil
and gas well drilling equipment, tools and apparatus,
drilling machines, well drilling machines, machine tools for
drilling, hydraulic and mechanical impacting apparatus,
equipment and tools for use in relation to oil and gas drill
wells, drilling apparatus for mineral exploration, impact
enhancing tools for use in the drilling and completion of
oil and gas drill wells, impact drills, jarring equipment
and apparatus and tools for use in the drilling and
completion of oil and gas wells. Industrial tool design services relating to tools for use in
the oil and gas exploration and production industries;
research, design and development of new products, tools,
equipment and apparatus for use in the oil and gas
exploration and production industries; design and
development of drilling machines, tools and equipment;
product testing services, namely testing of machinery for
use in the oil and gas exploration and production
industries; product testing services, namely testing the
functionality of apparatus and instruments for use in the
oil and gas exploration and production industries; design,
development and rental of measuring, monitoring and
optimisation software systems and graphical user interfaces
for use in relation to the drilling and completion of oil
and gas drill wells; rental of scientific equipment,
computer software, hardware and computer peripherals and
computer simulation systems relating to the drilling and
completion of oil wells; design, development and rental of
control programs for automated measurement, assembly,
adjustment, and related visualisation of drill tools for use
in the oil and gas exploration and production industries.
37 - Services de construction; extraction minière; installation et réparation
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Machines and drilling machines, namely, drilling jars and parts thereof, for use in the exploration and production of oil, gas and of minerals; tools for drilling, namely, drilling jars for the mining industry and parts thereof, for use in the exploration and production of oil, gas and of minerals; machine tools and drilling equipment, drilling tools, well drilling machines, and parts thereof, all for use in the exploration and production of oil, gas and of minerals; hydraulic and mechanical impacting apparatus and equipment for use in oil and gas drill wells, namely, drilling jars, casing pulling tools, pile drivers, machine tools for creating vibration; hydraulic and mechanical impacting tools for use in oil and gas drill wells; drilling apparatus for mineral exploration, namely, jars for use in mining; impact enhancing tools for use in the drilling and completion of oil and gas drill wells; impact drills [machines or parts of machines]; jarring equipment, apparatus and tools for use in the drilling and completion of oil and gas drill wells, namely, drilling jars, casing pulling tools, pile drivers, machine tools for creating vibration; (1) Repair, conditioning, assembly, installation, operation and rental of oil and gas well drilling equipment, tools and apparatus, drilling machines, well drilling machines, machine tools for drilling, hydraulic and mechanical impacting apparatus, equipment and tools for use in relation to oil and gas drill wells, drilling apparatus for mineral exploration, impact enhancing tools for use in the drilling and completion of oil and gas drill wells, impact drills, jarring equipment and apparatus and tools for use in the drilling and completion of oil and gas wells;
(2) Industrial tool design services relating to tools for use in the oil and gas exploration and production industries; research, design and development of new products, tools, equipment and apparatus for use in the oil and gas exploration and production industries; design and development of drilling machines, tools and equipment; testing of machinery for use in the oil and gas exploration and production industries; testing the functionality of apparatus and instruments for use in the oil and gas exploration and production industries; design, development and rental of measuring, monitoring and optimisation computer systems and graphical user interfaces for use in relation to the drilling and completion of oil and gas drill wells; rental of scientific equipment machines and machine tools, namely, drilling machines, machines for use in well abandonment, pile driving, jarring objects, and recovering stuck objects from oil and gas wells used to increase efficiency in recovery of stuck objects from a wellbore and maximize recovery rates, all for use in the drilling and completion of oil and gas drill wells; design, development and rental of control programs for automated measurement, assembly, adjustment, and related visualisation of drill tools for use in the oil and gas exploration and production industries;
A downhole jarring apparatus for use in jarring an object in a bore includes a first jarring portion including a first impact surface and a second jarring portion including a second impact surface. The apparatus includes a rotatable jarring arrangement operable to translate a rotational drive movement to cause relative axial movement of the first and second impact surfaces to establish axial impact therebetween.
E21B 31/107 - Repêchage ou dégagement d'objets dans les trous de forage ou dans les puits en utilisant des moyens de percussion pour dégager les parties coincées, p. ex. des coulisses de battage
