Three dimensional steerable system

Well system

Three dimensional steerable system

APPARATUS AND METHODS FOR DRILLING A WELLBORE USING CASING

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described. 1. A method for drilling and completing a well in a formation , comprising:pumping a drilling fluid through a motor system disposed in a casing, thereby rotating an earth removal member to drill the well;actuating a fluid divert system to open a passageway for supplying cement into the well; andpumping cement through the passageway and out of an end of the casing into the well.2. The method of claim 1 , wherein the passageway is formed by a hollow shaft disposed through the motor system claim 1 , wherein the hollow shaft is in fluid communication with one or more nozzles of the earth removal member.3. The method of claim 1 , further comprising pumping the drilling fluid from the surface to the fluid divert system via a tubular string claim 1 , and diverting the drilling fluid through one or more ports of the fluid divert system to the motor system.4. The method of claim 3 , further comprising moving a sleeve member to block the one or more ports of the fluid divert system.5. The method of claim 4 , further comprising moving the sleeve member using pressurized fluid.6. The method of claim 4 , further comprising shearing a shear ring to release the sleeve member for movement to block the one or more ports.7. The method of claim 6 , further comprising ...

Subsea casing drilling system

In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit.

TELEMETRY OPERATED CIRCULATION SUB

A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port. 1. A circulation sub for use in a wellbore , comprising:a tubular body having a bore therethrough, a port through a wall thereof, and a connector at each longitudinal end thereof;a tubular mandrel longitudinally movable relative to the body between an open position and a closed position, the mandrel having a bore therethrough and a port through a wall thereof corresponding to the body port, the mandrel wall in alignment with the body port in the closed position and the ports being aligned in the open position;a first biasing member operable to move the mandrel to the open position;a sleeve longitudinally movable relative to the body between an open position and a closed position, a wall of the sleeve in alignment with the body port in the closed position and the sleeve wall being clear of the body port in the open position;an actuator selectively operable to restrain the sleeve in the open and closed positions; and move the mandrel to the closed position, and', 'move the sleeve to the open position,, 'a piston operable towherein the body port and a bore of the ...

Method and apparatus for sealing tubulars

A method of controlling fluid flow between two tubulars includes disposing a sealing member in an annular area between two tubulars, wherein the two tubulars partially overlap; moving the sealing member to a lower position where it is not in contact with one of the tubulars, thereby allowing fluid flow through the annular area; and moving the sealing member to an upper position where it is in contact with both of the tubulars, thereby preventing fluid flow through the annular area.

Tachometer for downhole drilling motor

A tachometer for a downhole motor includes: a tubular housing having a coupling for connection to a housing of the motor; and a probe. The probe: has a coupling for connection to a rotor of the motor, is movable relative to the tachometer housing, and has at least a portion disposed in a bore of the tachometer housing. The tachometer further includes electronics disposed in the tachometer housing and including: a battery; one or more proximity sensors for tracking an orbit of the probe; and a programmable logic controller (PLC). The PLC is operable: to receive the tracked orbit, and at least one of: to determine an angular speed of the probe using the tracked orbit, and to forecast a remaining lifespan of the motor using the tracked orbit.

Method and apparatus for operating a downhole tool

In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.

Method and apparatus for operating a downhole tool

In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.

Deep water drilling with casing

Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

Deep water drilling with casing

Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

Well system

Methods and apparatus for wellbore construction and completion

The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

Apparatus and methods for drilling a wellbore using casing

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly

In one embodiment, a top drive system for drilling with casing is provided with an access tool to retrieve a downhole tool. The top drive system for drilling with casing comprises a top drive; a top drive adapter for gripping the casing, the top drive adapter operatively coupled to the top drive; and an access tool coupled to the top drive and adapted for accessing a fluid passage of the top drive system. In another embodiment, a method for retrieving a downhole tool through a tubular coupled to a top drive adapter of a top drive system is provided. The method comprises coupling an access tool to the top drive system, the access tool adapted to provide access to a fluid path in the top drive system and inserting a conveying member into the fluid path through the access tool.

Methods and apparatus for drilling with casing

In one embodiment, a method of forming a wellbore includes running a liner drilling assembly into the wellbore, the liner drilling assembly having a liner, a conveying member, one or more connection members, and a drilling member. The method includes temporarily suspending the liner at a location below the rig floor; releasing the conveying member and the drilling member from the liner; re-connecting the conveying member to the liner; releasing the liner from its location of temporary suspension; and advancing the liner drilling assembly.

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Methods and apparatus for drilling with casing

In one embodiment, a method of forming a wellbore includes running a liner drilling assembly into the wellbore, the liner drilling assembly having a liner, a conveying member, one or more connection members, and a drilling member. The method includes temporarily suspending the liner at a location below the rig floor; releasing the conveying member and the drilling member from the liner; re-connecting the conveying member to the liner; releasing the liner from its location of temporary suspension; and advancing the liner drilling assembly.

A method of drilling a wellbore

5 A radio-frequency identification device (RFID) for use in a wellbore is disclosed. The device includes a housing made of a polymer; and an antenna disposed in the housing. The polymer may be selected from the group consisting of an elastomer, a plastic, a rubber, a thermoplastic elastomer, and combinations thereof. The RFID device may also include a fill material disposed in the housing. A method of drilling a 10 well bore is also disclosed. The method includes using the RFID to send a first instruction signal to a first underreamer to extend the first underreamer then sending a second instruction signal to a second underreamer to extend the second underreamer. FIG 4 for publication Coc o CD 0v C) (o 194- 04 0c

Apparatus for gripping a pipe on a drilling rig

Fremgangsmåte og apparat for kjøring av rør inn i og ut av et brønnhull. Et gripeapparat aktiveres med en aktuator som har en primær aktuator og et redundant sikkerhetstrekk. Det redundante sikkerhetstrekk kan innbefatte ett eller flere redundante fluidopererte stempler. Gripeapparatet kan innbefatte integrert sikkerhetssystem som er tilpasset for å hindre skade på rørene mens forbindelser mellom rørene og rørstrengen gjøres opp og frakoples. Method and apparatus for driving pipes into and out of a wellbore. A gripper is activated by an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripper may include an integrated safety system adapted to prevent damage to the pipes while making connections and disconnecting the pipes.

Apparatus for gripping a tubular on a drilling rig

A method and apparatus for handling tubular on a drilling rig. The apparatus is adapted for gripping a tubular and may be used with a top drive. The apparatus includes a connection at one end for rotationally fixing the apparatus to the top drive and gripping members at a second end for gripping the tubular. The apparatus has a primary actuator configured to move and hold the gripping members in contact with the tubular and a backup assembly to maintain the gripping member in contact with the tubular. WO 2007/070805 PCT/US2006/061945 118 -115 ,-.120

Method and apparatus for operating a downhole tool

In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.

Tachometer for downhole drilling motor

A tachometer for a downhole motor includes: a tubular housing having a coupling for connection to a housing of the motor; and a probe. The probe: has a coupling for connection to a rotor of the motor, is movable relative to the tachometer housing, and has at least a portion disposed in a bore of the tachometer housing. The tachometer further includes electronics disposed in the tachometer housing and including: a battery; one or more proximity sensors for tracking an orbit of the probe; and a programmable logic controller (PLC). The PLC is operable: to receive the tracked orbit, and at least one of: to determine an angular speed of the probe using the tracked orbit, and to forecast a remaining lifespan of the motor using the tracked orbit.

Controller for downhole tool

A controller for operating a downhole tool includes a tubular body; a seat disposed in the body for receiving first and second pump-down plugs, at least a portion of one of the seat and the plugs being radially displaceable to pass through or allow passage of the other at a first threshold pressure differential; a catcher located below the seat for receiving the plugs after passing through the seat; a toggle linked to the seat to alternate between a locked position and an unlocked position in response to seating of the plugs; and a control mandrel for engaging a piston of the downhole tool and linked to the toggle: to be longitudinally movable between a first position and a second position when the toggle is unlocked, and to be prevented from movement from the first position to the second position when the toggle is locked.

Methods and apparatus for wellbore construction and completion

The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

Extendable cutting tools for use in a wellbore

Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

Three dimensional steerable system

The steering assembly includes upper (26) and lower (28) tubular housings connected by a universal joint (30). An angle cam (80) is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members (90) extend axially from the upper housing and into engagement with the angle cam. Drive trains (250) are connected to the wedge members to move the wedge members toward and away from the angle cam so as to pivot the lower housing at the universal joint and change the angle and azimuth of the lower housing with respect to the upper housing. The lower housing is connected to a bearing pack (16) supporting a drill bit such that upon changing the angle and azimuth of the lower housing, the direction of the drilling of the drill bit is also changed. The steering assembly being connected to composite tubing having conductors in the wall thereof for conducting data and commands between the steering assembly and a processor at the surface and for providing power to the steering assembly. Data on the position of the bit is transmitted to a processor which determines the direction of drilling and selectively transmits commands to the steering assembly to change the bend angle and direction of the drilling of the bit.

Subsea drilling with casing

A method of forming a wellbore includes providing a drilling assembly comprising one or more lengths of casing and an axially retracting assembly having a first tubular; a second tubular at least partially disposed in the first tubular and axially fixed thereto; and a support member disposed in the second tubular and movable from a first axial position to a second axial position relative to the second tubular, wherein, in the first axial position, the support member maintains the second tubular axially fixed to the first tubular, and in the second axial position, allows the second tubular to move relative to the first tubular; and an earth removal member disposed below the axially retracting assembly. The method also includes rotating the earth removal member to form the wellbore; moving the support member to the second axial position; and reducing a length of the axially retracting assembly.

Vibration damper systems for drilling with casing

Apparatus and methods are provided for reducing drilling vibration during drilling with casing. In one embodiment, an apparatus for reducing vibration of a rotating casing includes a tubular body disposed concentrically around the casing, wherein tubular body is movable relative to the casing. Preferably, a portion of the tubular body comprises a friction reducing material. In operation, the tubular body comes into contact with the existing casing or the wellbore instead of the rotating casing. Because the tubular body is freely movable relative to the rotating casing, the rotating casing may continuously rotate even though the tubular body is frictionally in contact with the existing casing.

Pressure activated release member for an expandable drillbit

An apparatus for use in a wellbore. The apparatus includes a body and a blade assembly. The blade assembly is movable between a collapsed position whereby the expandable apparatus has a smaller outer diameter and an expanded position whereby the expandable apparatus has a larger outer diameter. The apparatus further includes a pressure activated member for selectively allowing the blade assembly to move from the closed position to the open position. A method for using the apparatus, wherein a drill string with an expandable bit at the end thereof is lowered into the wellbore. Thereafter, the pressure activated member is activated to allow the cutting members to move from the collapsed position to the expanded position. Subsequently, the expandable bit is rotated to form a portion of the wellbore. Next, the expandable bit is deactivated and the cutting members are moved from the expanded position to the collapsed position.

Earth removal member with features for facilitating drill-through

An earth removal member for drilling a wellbore with casing or liner includes a tubular body and a head. The head is fastened to or formed with an end of the body, has a face and a side, is made from a high strength material, and has a port formed through the face. The earth removal member further includes a blade. The blade is formed on the head, extends from the side and along the face, and is made from the high strength material. The earth removal member further includes cutters disposed along the blade; and a nozzle adapter. The nozzle adapter has a port formed therethrough, is longitudinally and rotationally coupled to the head, and is made from a drillable material. The earth removal member further includes a nozzle disposed in the adapter port and fastened to the nozzle adapter.

Three dimensional steerable system

A steering assembly (20) includes upper (26) and lower (28) tubular housings connected by a universal joint (30). An angle cam (80) is d is- posed on the end of the lower housing and projects into the housing. A plurality of wedge members (90) extend axially from the upper housing and into engage- ment with the angle cam. Drive trains (150) are connected to the wedge members to move the wedge members toward and away from the angle cam to change the angle and azimuth of the lower housing with respect to the upper housing by the universal joint. The lower housing is connected to a bearing pack (16) s up- porting a drill bit (12) so as to change the direction of the drill bit. The steerin g assembly is connected to composite tubing (520) having conductors (584, 586) in the wall and a processor (514) is at the surface. Data on the position of the bit is transmitted to the processor to change the bend angle and direction o f the drilling of the bit.

Bit connector

The drilling assembly includes an eccentric adjustable diameter blade stabilizer (30), having a housing (43) with a fixed stabilizer blade (32) an d a pair of adjustable stabilizer blades (34, 36), and a bi-center bit (20), having an eccentric reamer section (24) and a pilot bit (22), mounted on the eccentric stabilizer (30). The stabilizer (30) and bit (20) have an alignmen t mechanism (40) for aligning the fixed blade (32) with the reamer section (24 ). The alignment mechanism (40) includes an aperture (44) on the bit (20) which is aligned with an aperture (42) on the stabilizer (30) as the stabilizer (3 0) is made up on the bit (20). An alignment member (48) is received by the aligned apertures (42, 44) for maintaining the alignment.

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Apparatus for drilling a wellbore using casing

Apparatus and methods for drilling a wellbore using casing

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Apparatus for gripping a tubular on a drilling rig

Tachometer for downhole drilling motor

A tachometer for a downhole motor includes: a tubular housing having a coupling for connection to a housing of the motor; and a probe. The probe: has a coupling for connection to a rotor of the motor, is movable relative to the tachometer housing, and has at least a portion disposed in a bore of the tachometer housing. The tachometer further includes electronics disposed in the tachometer housing and including: a battery; one or more proximity sensors for tracking an orbit of the probe; and a programmable logic controller (PLC). The PLC is operable: to receive the tracked orbit, and at least one of: to determine an angular speed of the probe using the tracked orbit, and to forecast a remaining lifespan of the motor using the tracked orbit.

Bit connector

The drilling assembly includes an eccentric adjustable diameter blade stabilizer (30), having a housing (43) with a fixed stabilizer blade (32) and a pair of adjustable stabilizer blades (34, 36), and a bi-center bit (20), having an eccentric reamer section (24) and a pilot bit (22), mounted on the eccentric stabilizer (30). The stabilizer (30) and bit (20) have an alignment mechanism (40) for aligning the fixed blade (32) with the reamer section (24). The alignment mechanism (40) includes an aperture (44) on the bit (20) which is aligned with an aperture (42) on the stabilizer (30) as the stabilizer (30) is made up on the bit (20). An alignment member (48) is received by the aligned apertures (42, 44) for maintaining the alignment.

Apparatus and method for gripping a pipe on a drilling rig

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Earth removal member with features for facilitating drill-through

EARTH REMOVAL MEMBER WITH FEATURES FOR FACILITATING DRILL-THROUGH An earth removal member (1) for drilling a wellbore with casing or liner, comprising: a tubular body (5); a head (10) fastened to or formed with an end of the body (5), having a face (310f) and a side (10g), having a boss (350i,o) integrally formed with the head (10) and extending from a rear of the face (310f), and having a head port (3 1Op) formed through the boss (350i,o) and the face (310f); a blade formed on the head (315a,b); cutters (20) disposed along the blade; a nozzle (100/150) disposed in the head port (3 10p) and fastened to the boss (310i,o); a second port (3 10p) formed though the boss (350i,o) and the face (310f); and a second nozzle (100/150) disposed in the second port (3 10p) and fastened to the boss (350i,o).

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Thrust control apparatus

A thrust absorber (130) is interposed between a thrusting means (80) and an anchoring means (60) that cooperate to axially displace another member (30). The thrust absorber (130) includes an enclosure (64) fixed to the anchor mea ns (60) and a retainer (62) connected to the thrusting means (80). A biasing member (136) is operably associated with the retainer (62). During an overthrust condition, the thrusting means (80) imparts a thrust force to the member (30), but the member (30) is not substantially axially displaced. In such a condition, the biasing means (136) absorbs the thrust that the thrusting means (80) would otherwise impart to the member (30). A dampener (92) is also included to dampen the movement of the thrusting means (80) and anchoring means (60) when the anchoring means (60) is no longer anchoring th e thrusting means (80).

Subsea drilling with casing

A method of forming a wellbore includes providing a drilling assembly comprising one or more lengths of casing and an axially retracting assembly having a first tubular; a second tubular at least partially disposed in the first tubular and axially fixed thereto; and a support member disposed in the second tubular and movable from a first axial position to a second axial position relative to the second tubular, wherein, in the first axial position, the support member maintains the second tubular axially fixed to the first tubular, and in the second axial position, allows the second tubular to move relative to the first tubular; and an earth removal member disposed below the axially retracting assembly. The method also includes rotating the earth removal member to form the wellbore; moving the support member to the second axial position; and reducing a length of the axially retracting assembly.

Controller for downhole tool

A controller for operating a downhole tool includes a tubular body; a seat disposed in the body for receiving first and second pump-down plugs, at least a portion of one of the seat and the plugs being radially displaceable to pass through or allow passage of the other at a first threshold pressure differential; a catcher located below the seat for receiving the plugs after passing through the seat; a toggle linked to the seat to alternate between a locked position and an unlocked position in response to seating of the plugs; and a control mandrel for engaging a piston of the downhole tool and linked to the toggle: to be longitudinally movable between a first position and a second position when the toggle is unlocked, and to be prevented from movement from the first position to the second position when the toggle is locked.

Method of operating a downhole tool

In one embodiment, a method of drilling a wellbore utilizing a drilling assembly having a tubular string, a first underreamer, a second underreamer, and a drill bit. The method includes running drilling assembly into the wellbore through a casing string; injecting drilling fluid through the tubular string and rotating the drill bit; sending a first instruction signal to the first underreamer; sending a second instruction signal to the second underreamer; wherein at least the first or the second instruction signal comprises a synchronization portion and a command portion. In one embodiment, at least one portion of the instruction signals includes modulating a fluid flow rate according to a predetermined fluid flow rate protocol.

countersink for use in forming a drilled well through a geological formation, drilling set to form a drilled well, and method for reaming a drilled well

"escareador para uso na formação de um poço perfurado através de uma formação geológica, conjunto de perfuração para formar um poço perfurado, conjunto de perfuração para cortar um poço em formação geológica, ferramenta de fundo de poço para uso em um conjunto de perfuração em um poço perfurado, método para passar um conjunto de perfuração através de um poço perfurado existente tendo um dado diâmetro e perfurar um novo poço sob o poço perfurado existente, método para escarear um poço perfurado, e, conjunto de perfuração para perfurar um poço através de formação geológica". um conjunto de perfuração e um escareador excêntrico de diâmetro ajustável são revelados. o escareador inclui elementos cortantes montados sobre pelo menos uma lâmina fixa para escarear um poço perfurado previamente formado ou para formar um poço perfurado de maior diâmetro sob um poço perfurado revestido existente. o método e aparelho provêem estabilizar o conjunto de perfuração de modo que o escareador possa ser usado no retroescareamento do furo. meios de retenção, como pinos de cisalhamento ou membros de travamento reciprocantes solicitados por mola são providos para impedir extensão prematura dos membros móveis do escareador, incluindo lâminas e pistões. os pinos de cisalhamento são, de preferência, acessíveis pela superfície externa do alojamento do escareador de modo a facilitar substituição no campo dos pinos de cisalhamento sem precisar desmontar o escareador. os membros de travamento solicitados por mola travam e destravam repetidamente, de modo que a substituição no campo não seja necessária e, assim, os membros móveis podem ser estendidos e contraídos múltiplas vezes enquanto o escareador estiver no interior do poço. "countersink for use in forming a drilled well through a geological formation, drilling set to form a drilled well, drilling set for cutting a well in geological formation, downhole tool for use in a drilling set in a borehole, method for passing a borehole ...

Extendable cutting tools for use in a wellbore

Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

Apparatus for gripping a tubular on a drilling rig

Extendable cutting tools for use in a wellbore

Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

Extendable cutting tools for use in a wellbore

Embodiments of the present invention generally relate to extendable cutting tools for use in a well bore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Method and apparatus for operating a downhole tool

In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.

Three dimensional steerable system and method for steering bit to drill borehole

Earth removal member with features for facilitating drill-through

EARTH REMOVAL MEMBER WITH FEATURES FOR FACILITATING DRILL 5 Embodiments of the present invention generally relate to an earth removal member (1) with features for facilitating drill-through. In one embodiment, an earth removal member (1) for drilling a wellbore with casing or liner includes a tubular body (5) and a head (10). The head (10) is fastened to or formed with an end of the body (5), has a face (1Of) and a side (lOg), is made from a high strength material, and has a port 1o (1Op) formed through the face (10f). The earth removal member further includes a blade (15a,15b). The blade (15a,15b) is formed on the head (10), extends from the side (10g) and along the face (10f), and is made from the high strength material. The earth removal member further includes cutters (20) disposed along the blade (1 5a, I 5b); and a nozzle adapter (450). The nozzle adapter (450) has a port (450p) formed therethrough, is is longitudinally and rotationally coupled to the head (10), and is made from a drillable material. The earth removal member further includes a nozzle (100) disposed in the adapter port (4 50p) and fastened to the nozzle adapter (450). K1 5a 20 lOf 15r 15b lot 1op 1og

Bit connector

Controller for downhole tool

Bit connector

Method of operating a downhole tool

In one embodiment, a radio-frequency identification device for use in a wellbore includes a housing made of a polymer; and an antenna disposed in the housing. The polymer may be selected from the group consisting of an elastomer, a plastic, a rubber, a thermoplastic elastomer, and combinations thereof. The RFID device may also include a fill material disposed in the housing.

Method and apparatus for sealing tubulars

A method of controlling fluid flow between two tubulars includes disposing a sealing member in an annular area between two tubulars; moving the sealing member to a lower position where it is not in contact with one of the tubulars, thereby allowing fluid flow through the annular area; and moving the sealing member to an upper position where it is in contact with both of the tubulars, thereby preventing fluid flow through the annular area.

Apparatus for gripping a tubular on a drilling rig

Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

Apparatus and methods for drilling a wellbore using casing

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Well system

An assembly is provided for drilling a wellbore which comprises a composite coiled tubing and a drilling assembly including a bit and a downhole electric motor powered from the surface. An apparatus is also provided for controlling the drilling direction, which includes means for lowering a drilling assembly and steering assembly into a borehole on composite coiled tubing having a tubular wall with one or more conductors embedded therein. The steering assembly includes a body having a nose connected thereto by a jointed connection, the body and nose each having an axis. The apparatus further includes means for drilling the borehole by rotating and applying a load to the bit, means for communicating a signal through one of the conductors to change drilling direction and means for adjusting the nose axis with respect to the body axis at the jointed connection while drilling in order to change the angle and azimuth of the bit and thus the direction of drilling.

Thrust control apparatus

A thrust absorber (130) is interposed between a thrusting means (80) and an anchoring means (60) that cooperate to axially displace another member (30). The thrust absorber (130) includes an enclosure (64) fixed to the anchor means (60) and a retainer (62) connected to the thrusting means (80). A biasing member (136) is operably associated with the retainer (62). During an overthrust condition, the thrusting means (80) imparts a thrust force to the member (30), but the member (30) is not substantially axially displaced. In such a condition, the biasing means (136) absorbs the thrust that the thrusting means (80) would otherwise impart to the member (30). A dampener (92) is also included to dampen the movement of the thrusting means (80) and anchoring means (60) when the anchoring means (60) is no longer anchoring the thrusting means (80).

Pressure activated release member for an expandable drillbit

An apparatus for use in a wellbore. The apparatus includes a body and a blade assembly. The blade assembly is movable between a collapsed position whereby the expandable apparatus has a smaller outer diameter and an expanded position whereby the expandable apparatus has a larger outer diameter. The apparatus further includes a pressure activated member for selectively allowing the blade assembly to move from the closed position to the open position. A method for using the apparatus, wherein a drill string with an expandable bit at the end thereof is lowered into the wellbore. Thereafter, the pressure activated member is activated to allow the cutting members to move from the collapsed position to the expanded position. Subsequently, the expandable bit is rotated to form a portion of the wellbore. Next, the expandable bit is deactivated and the cutting members are moved from the expanded position to the collapsed position.

Apparatus and method for drilling and reaming a borehole

Methods and apparatus for wellbore construction and completion

The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid flow path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

Recyclable ball-activated release device for lateral oil drilling applications

Deep water drilling with casing

Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

Apparatus and methods for drilling a wellbore using casing

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Method and apparatus for operating a downhole tool

In another embodiment, a method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly comprising a tubular string, an underreamer, and a drill bit; injecting drilling fluid through the tubular string and rotating the drill bit, wherein the underreamer remains locked in the retracted position; sending an instruction signal to the underreamer via modulation of a rotational speed of the drilling assembly or modulation of a drilling fluid pressure, thereby extending the underreamers; and reaming the wellbore using the extended underreamer.

Earth removal member with features for facilitating drill-through

EARTH REMOVAL MEMBER WITH FEATURES FOR FACILITATING DRILL 5 Embodiments of the present invention generally relate to an earth removal member (1) with features for facilitating drill-through. In one embodiment, an earth removal member (1) for drilling a wellbore with casing or liner includes a tubular body (5) and a head (10). The head (10) is fastened to or formed with an end of the body (5), has a face (1Of) and a side (lOg), is made from a high strength material, and has a port 1o (1Op) formed through the face (10f). The earth removal member further includes a blade (15a,15b). The blade (15a,15b) is formed on the head (10), extends from the side (10g) and along the face (10f), and is made from the high strength material. The earth removal member further includes cutters (20) disposed along the blade (1 5a, I 5b); and a nozzle adapter (450). The nozzle adapter (450) has a port (450p) formed therethrough, is is longitudinally and rotationally coupled to the head (10), and is made from a drillable material. The earth removal member further includes a nozzle (100) disposed in the adapter port (4 50p) and fastened to the nozzle adapter (450). K1 5a 20 lOf 15r 15b lot 1op 1og

Apparatus and methods for drilling a wellbore using casing

Apparatus and methods for drilling with casing. In an embodiment, methods and apparatus for deflecting casing using a diverter apparatus are disclosed. In another embodiment, the apparatus comprises a motor operating system disposed in a motor system housing, a shaft operatively connected to the motor operating system, the shaft having a passageway, and a divert assembly disposed to direct fluid flow selectively to the motor operating system and the passageway in the shaft. In another aspect, methods and apparatus for directionally drilling a casing into the formation are disclosed. Methods and apparatus for measuring the trajectory of a wellbore while directionally drilling a casing into the formation are also described.

Deep water drilling with casing

Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

coated submarine drilling

Vorrichtung zum zugriff auf eine röhre auf einer bohrvorrichtung

Boresystem innbefattende stabiliseringsrør med blad med eksentrisk justerbar diameter

Subsea casing drilling system

A casing drilling system includes a casing having a bore therethrough; a drilling member coupled to the casing; a retrievable motor releasably coupled to the casing and includes a power section configured to rotate the drilling member relative to the casing; and a cementing tube in selectively fluid communication with the bore of the casing for diverting cement from the power section of the drilling motor.

Apparatus and methods for deploying a sensor in a downhole tool

A downhole assembly includes a tubular body having a bore and a downhole tool connected to the tubular body. The downhole assembly also includes a sensor assembly having a carrier and a sensor. A sensor adapter is used to couple the sensor assembly to the tubular body. The sensor adapter includes an adapter body disposed in the bore of the tubular body; an adapter shaft for connection with the carrier; and a plurality of channels formed between the adapter shaft and the adapter body.

Bohrsystem mit exzentrischem Stabilisator mit einstellbarem Durchmesser der Flügel

Bohrsystem mit exzentrischem Stabilisator mit einstellbarem Durchmesser der Flügel

Drilling system including eccentric adjustable diameter blade stabilizer

Boresystem innbefattende stabiliseringsrør med blad med eksentrisk justerbar diameter

Downhole debris retriever

Apparatus and methods for deploying a sensor in a downhole tool

A downhole assembly includes a tubular body having a bore and a downhole tool connected to the tubular body. The downhole assembly also includes a sensor assembly having a carrier and a sensor. A sensor adapter is used to couple the sensor assembly to the tubular body. The sensor adapter includes an adapter body disposed in the bore of the tubular body; an adapter shaft for connection with the carrier; and a plurality of channels formed between the adapter shaft and the adapter body.

Downhole debris retriever

Elektrisk, overflateaktivert nedihulls-sirkuleringsrördel

Stabilizer

A method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly having a tubular string, a stabilizer, and a drill bit; applying a force to an arm of the stabilizer, thereby causing the arm to retract; and removing the stabilizer and the drill bit from the wellbore.

Apparatus and methods for deploying a sensor in a downhole tool

A downhole assembly includes a tubular body having a bore and a downhole tool connected to the tubular body. The downhole assembly also includes a sensor assembly having a carrier and a sensor. A sensor adapter is used to couple the sensor assembly to the tubular body. The sensor adapter includes an adapter body disposed in the bore of the tubular body; an adapter shaft for connection with the carrier; and a plurality of channels formed between the adapter shaft and the adapter body.

Von der oberfläche elektrisch betätigtes zirkulationszwischenstück

Electrical surface activated downhole circulating sub

A preferred novel circulating sub includes an electric motor, hydraulic intensifier, connecting rod, valve sleeve, valve plug, and angled nozzles. Upon activation of the circulating sub the electric motor drives the valve sleeve over the valve plug, causing a flow of drilling fluid to exit the angled nozzles. Upon deactivation of the circulating sub, the electric motor removes the valve sleeve from the valve plug, allowing the flow of drilling fluid to once again flow to the drill bit. Because the electric motor is reversible, the circulating sub can be repeatedly activated and deactivated.

Elektrisk, overflateaktivert nedihulls-sirkuleringsrordel, og fremgangsmate for a lede strommen av fluid i denne

Elektrisk, overflateaktivert nedihulls-sirkuleringsrördel

Stabilizer

A method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly having a tubular string, a stabilizer, and a drill bit; applying a force to an arm of the stabilizer, thereby causing the arm to retract; and removing the stabilizer and the drill bit from the wellbore.

Stabilizer

A method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly having a tubular string, a stabilizer, and a drill bit; applying a force to an arm of the stabilizer, thereby causing the arm to retract; and removing the stabilizer and the drill bit from the wellbore.

Telemetry operated circulation sub

A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port.

Extendable and retractable stabilizer

A method of drilling a wellbore includes running a drilling assembly into the wellbore through a casing string, the drilling assembly having a tubular string, a stabilizer, and a drill bit; applying a force to an arm of the stabilizer, thereby causing the arm to retract; and removing the stabilizer and the drill bit from the wellbore.

Method and apparatus for sealing tubulars

A method of controlling fluid flow between two tubulars includes disposing a sealing member in an annular area between two tubulars, wherein the two tubulars partially overlap; moving the sealing member to a lower position where it is not in contact with one of the tubulars, thereby allowing fluid flow through the annular area; and moving the sealing member to an upper position where it is in contact with both of the tubulars, thereby preventing fluid flow through the annular area.