A casing shoe valve includes a valve body having an internal bore and a connection on each longitudinal end to enable connection of the valve body within a tubular string. A first valve element is fixedly disposed at a first axial location within the internal bore. A second valve element is disposed in the internal bore at a spaced apart axial location from the first valve element, the second valve element being held at the spaced apart axial location by a dissolvable retaining element. A biasing element is arranged to urge the second valve element toward the first valve element. The first and second valve elements are arranged to close the internal bore to fluid flow when they are engaged with each other.
A string disconnect for a pipe string has a top sub (12) comprising a sub body (12A) having a threaded connection at each end and a through bore. The top sub has a piston (16) having a ball seat (16A) at one end and an elongated slot at another end disposed in the bore. The piston is held at a top end of the top sub by a biasing device (18) or restraint, and is rotationally locked to the top sub. The slot subtends an angle to a longitudinal axis of the piston. A bottom sub comprises a sub body (14A) having a threaded connection at each end and a release pin (20) extending inwardly from a through bore in the bottom sub and rotationally fixed to the bottom sub. Movement of the piston toward the bottom sub engages the slot (16D) with the release pin (18) to induce torque between the top sub and the bottom sub.
A tool joint for a pipe string, comprises a box end having a female threaded section proximate a longitudinal end of a pipe segment. A threaded section is formed on an interior wall of the pipe segment proximate a base of the female threaded section. The threaded section has formed therein at least one locking bore for receiving a locking pin. The at least one receiving bore is oval shaped and elongated in a longitudinal direction of the pipe segment. A shoulder sleeve has on its exterior surface threads for engaging the threaded section, and at least one pin bore through a wall of the shoulder sleeve. At least one locking pin is passed through the pin bore to engage the at least one locking bore when the at least one pin bore is rotationally and longitudinally aligned with the at least one locking bore.
A reaming tool includes a housing having a connection at one end for coupling to a pipe string. The housing defines at least one of a rotor and a stator of a turbine. A rotor shaft is rotatably supported on the housing. The rotor shaft has an interior passage and defines the other of a stator and a rotor of the turbine. The rotor shaft has a coupling at one end to attach a well intervention tool. A flow diverter is disposed within the housing. The flow diverter comprises ports to selectively direct flow of fluid from an interior of the housing to either (i) an annular space between the housing and the rotor shaft, or (ii) the interior passage of the rotor shaft. The flow diverter is operable to change direction of the flow of fluid by changing a flow rate of the flow of fluid.
A wellbore tubular flotation device comprises a housing having a locking element disposed thereon. The housing is shaped to move through an interior of a wellbore tubular segment. The locking element is shaped to engage the interior of the wellbore tubular segment. The locking element comprises a locking mechanism configured to urge the locking element into contact with the interior of the wellbore tubular. A burst disk is engaged with the housing and is shaped to close the tubular segment to fluid flow. A release mechanism is configured to reverse the urging of the locking mechanism when a release tool is moved through the housing.
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
Downhole tools for use in oil and gas wells made of metal;
downhole tools and apparatus for use in oil and gas well
intervention, completion and remediation; fishing tools for
use in oil and gas wells; pulling tools and apparatus for
use in oil and gas wells; downhole apparatus for use in oil
and gas wells made of metal.
Power-operated downhole tools made of metal for use in oil and gas wells, namely, tools for removing metal casings used to stabilize the wellbore; Power-operated downhole tools and apparatus for use in oil and gas well intervention and remediation, namely, rotary tools for preparing metal wellbore casings for removal, all being part of metal coiled tubing, metal cable, or metal drill pipe deployed machines; Fishing tools for use in oil and gas wells, namely, grapples, spears, overshots and jars all being parts of machines used for recovering tools and objects stuck in oil and gas wells; Pulling tools and apparatus for use in oil and gas wells, namely, grapples, spears, overshots and jars all being parts of machines used for recovering tools and objects stuck in oil and gas wells; Power-operated downhole apparatus made of metal for use in oil and gas wells, namely, apparatus for removing metal casings used to stabilize the wellbore
Downhole tools for use in oil and gas wells made of metal;
downhole tools and apparatus for use in oil and gas well
intervention, completion and remediation; fishing tools for
use in oil and gas wells; pulling tools and apparatus for
use in oil and gas wells; downhole apparatus for use in oil
and gas wells made of metal.
Apparatus, equipment and machines (all included in this
class) used in oil and gas exploration, drilling and
production; apparatus for use in relation to installation,
construction, maintenance or repair of oil and gas wells;
wellbore casing installation apparatus; apparatus for use in
relation to completion or cementation operations during well
construction; wellbore running tools; downhole apparatus for
use in oil and gas wells made of metal; parts and fittings
for all of the aforesaid goods.
A wellbore tubular flotation device comprises a housing having a locking element disposed thereon. The housing is shaped to move through an interior of a wellbore tubular segment. The locking element is shaped to engage the interior of the wellbore tubular segment. The locking element comprises a locking mechanism configured to urge the locking element into contact with the interior of the wellbore tubular. A burst disk is engaged with the housing and is shaped to close the tubular segment to fluid flow. A release mechanism is configured to reverse the urging of the locking mechanism when a release tool is moved through the housing.
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
Power operated apparatus, equipment and machines used in oil and gas exploration, drilling and production; power operated apparatus for installation, construction, maintenance and repair of oil and gas wells; power operated wellbore casing installation apparatus; power operated apparatus for use in completion and cementation operations during well construction; power operated wellbore running machine tools; parts and fittings for all of the aforesaid goods
Apparatus, equipment and machines used in oil and gas exploration, drilling and production, installation, construction, maintenance or repair of oil and gas wells, namely, wellbore casing installation apparatus, namely, casing floatation devices; casing floatation devices for use in relation to completion or cementation operations during well construction
A wellbore tubular flotation device comprises a housing having a locking element disposed thereon. The housing is shaped to move through an interior of a wellbore tubular segment. The locking element is shaped to engage the interior of the wellbore tubular segment. The locking element comprises a locking mechanism configured to urge the locking element into contact with the interior of the wellbore tubular. A burst disk is engaged with the housing and is shaped to close the tubular segment to fluid flow. A release mechanism is configured to reverse the urging of the locking mechanism when a release tool is moved through the housing.
A wellbore tubular flotation device comprises a housing having a locking element disposed thereon. The housing is shaped to move through an interior of a wellbore tubular segment. The locking element is shaped to engage the interior of the wellbore tubular segment. The locking element comprises a locking mechanism configured to urge the locking element into contact with the interior of the wellbore tubular. A burst disk is engaged with the housing and is shaped to close the tubular segment to fluid flow. A release mechanism is configured to reverse the urging of the locking mechanism when a release tool is moved through the housing.
The invention provides a swivel tool for use in a wellbore. The tool comprises a tool body and a mandrel which is axially moveable relative to the tool body. The tool also comprises a lock member moveable between a first condition in which the mandrel is rotatably movable relative to tool body and a second condition in which the mandrel and a tool body are rotationally coupled. The lock member is configured to move between the first condition and second condition in response to a mechanical axial force and rotational force on the mandrel.
A method for recovering a conduit from a wellbore includes positioning an expander tool having at least one biasing element within the conduit an expander tool and exerting a force against the at least one biasing element to radially expand the conduit to an amount sufficient to fracture solids outside of and in contact with the conduit.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
A method for recovering a conduit from a wellbore (1) includes positioning an expander tool (4) having at least one biasing element (7) within the conduit an expander tool and exerting a force against the at least one biasing element (7) to radially expand the conduit (8) to an amount sufficient to fracture solids outside of and in contact with the conduit.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 29/10 - Reconditioning of well casings, e.g. straightening
E21B 31/16 - Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
E21B 43/10 - Setting of casings, screens or liners in wells
A flotation device for a wellbore tubular has a flotation disk having a tapered exterior profile. A maximum external diameter of the flotation disk is such to enable free longitudinal movement within the wellbore tubular. A plurality of locking segments each has a tapered interior profile cooperatively engageable with the tapered exterior profile. Each locking segment has gripping elements on an exterior surface thereof to engage an inner wall of the wellbore tubular. The tapered exterior profile and the tapered interior profile cooperate to expand a diameter of the locking segments as profile engagement increases.
Downhole apparatus for use in the oil and gas industries; drilling devices for use in the oil and gas industries; downhole apparatus and tools for use in the oil and gas industry for the insertion of drilling equipment and parts and fittings therefor into wells; downhole apparatus and tools for use in the oil and gas industry for coring parts and fittings therefor.
A rotary drive apparatus (24) for a downhole tool (22), the rotary drive apparatus (24) comprising a drive stage (36a) comprising a rotor (40a) and a stator (42a) and a connecting stage (38a) for connecting to the drive stage (36a). The connecting stage (38a) comprises a rotor connector (44a) suitable for connecting to the rotor (40a) and a stator connector (46a) suitable for connecting to the stator (42a).
A tool assembly (10) comprises a casing section (12), and a downhole tool (14) comprising a rotary drive (16) and a cutting member (18). In use, the tool assembly (10) is disposed in a well borehole (B) and the rotary drive (16) operated to drive rotation of the cutting member (18) to cut the borehole (B). The downhole tool (14) comprises a tubular housing (20) and a cartridge assembly (36), the cartridge assembly (36) disposed within the housing (20) of the downhole tool (14) and comprising the rotary drive (16) of the downhole tool (14). A clutch (78) is provided to enable free movement of the cutting member (18) during normal operation, engagement of the clutch (78)preventing rotation of the cutting member (18)and the housing (20).
A downhole tool (10) configured to condition a borehole (B) and deliver a settable material, such as cement slurry, into a borehole annulus (A)for securing and supporting a casing string (C)in the borehole (B)comprises a body in the form of tubular housing (12), a shaft (14) rotatably mounted within the housing(12), a head portion (22) and a drive arrangement (20). In use, borehole cleaning and cementing operations may be carried out by directing a drive fluid, such as drilling mud,through the drive arrangement (20)to drive rotation of the head portion (22) to clean or condition the borehole (b). A cement slurry or the like,may then be directed through the casing string (C) or via a cementing string (S) into the shaft(14), and through the drive arrangement (20),the fluid then being ejected from the head portion (22).
An apparatus for cutting a wellbore includes a motor having a stator and a rotor. The rotor has an output shaft connected to a cutting structure. The stator and rotor are spaced radially outwardly of the axis of rotation of the rotor such that at least one of the stator and the rotor had an access bore extending through the motor to adjacent the cutting structure. A further object can pass therethrough, without obstruction. The further object comprises a further cutting. A flow diverter is disposed in the motor proximate a connection between the motor and a wellbore tubular, and has a first fluid outlet in fluid communication with a power section of the motor, and a second fluid outlet in fluid communication with the access bore. The flow diverter is coupled to the stator such that axial loading created by fluid pressure is substantially transferred to the stator.
A completion system (10) comprises tubular components (22) coupled together to form a completion string (24). In-flow control devices are provided to permit selective fluid communication between an internal bore of the completion string and the annulus. A reaming tool (38) is provided at a leading end of the completion string and the reaming tool is run into the borehole with the completion string. The reaming tool comprises a fluid-powered drive unit, a reaming body and a reaming nose. In use, the completion string is located in the borehole and fluid is directed to the reaming tool to facilitate reaming of the borehole. A second tubular in the form of a washpipe may extend through an internal bore of the completion string for providing fluid to the reaming tool. The reaming tool is operable at a fluid pressure below a pressure which would activate the in-flow control devices.
A completion system comprises tubular components coupled together to form a completion string. In-flow control devices are provided to permit selective fluid communication between an internal bore of the completion string and the annulus. A reaming tool is provided at a leading end of the completion string and the reaming tool is run into the borehole with the completion string. The reaming tool comprises a fluid-powered drive unit, a reaming body and a reaming nose. In use, the completion string is located in the borehole and fluid is directed to the reaming tool to facilitate reaming of the borehole. A second tubular in the form of a washpipe may extend through an internal bore of the completion string for providing fluid to the reaming tool. The reaming tool is operable at a fluid pressure below a pressure which would activate the in-flow control devices.
E21B 10/23 - Roller bits characterised by bearing, lubrication or sealing details with drilling fluid supply to the bearings
E21B 10/26 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
E21B 21/12 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
An apparatus for cutting a wellbore includes a motor with a stator and a rotor. The rotor includes an output shaft connected to a cutting structure to drive the cutting structure in use. The stator and rotor are spaced radially outwardly of the axis of the rotor such that at least one of the stator and the rotor has an access bore that extends through the motor to a position adjacent the cutting structure and through which a further object can pass without obstruction from the stator and rotor. The further object includes a further cutting structure. The motor workings are radially outward of the output shaft and the further cutting structure so as not to obstruct passage of the further cutting structure toward the cutting structure, such that the motor workings do not require drilling or removal to allow the further cutting structure access to the cutting structure.
A reaming tool for use in reaming a bore includes a body adapted for location in a bore. The body defines a rotor of a rotary drive arrangement. A shaft adapted for location is disposed in the body. The shaft defines a stator of the rotary drive arrangement. A seal element is disposed between the shaft and the body. The seal element defines a bearing surface for permitting sealed relative rotation of the rotary drive arrangement. The tool includes a reaming member, wherein relative rotation between the body and the shaft facilitates reaming of the bore by the reaming member.
A reaming shoe for location in a bore has a rotationally balanced nose. A rotary drive is rotationally coupled to the reaming shoe to enable reaming of the bore. The assembly of the reaming shoe and the rotary drive is adapted to be coupled to a tubular component. The reaming shoe is mounted to the tubular component to enable rotation of the reaming shoe independently of the tubular component, such that the reaming shoe is rotatable at a different rotational speed than the tubular component.
A completion system (10) comprises tubular components (22) coupled together to form a completion string (24). In-flow control devices (34) are provided to permit selective fluid communication between an internal bore (26) of the completion string (24) and the annulus (28). A reaming tool (38) is provided at a leading end of the completion string (24) and the reaming tool (38) is run into the borehole (12) with the completion string (24). The reaming tool (38) comprises a fluid-powered drive unit (40), a reaming body (42) and a reaming nose (43). In use, the string (24) is located in the borehole (12) and fluid is directed to the reaming tool (38) to facilitate reaming of the borehole (12). A second tubular in the form of a washpipe (44) extends through the internal bore (26) of the completion string (24) for providing fluid to the reaming tool (38). The reaming tool (38) is operable at a fluid pressure below a pressure which would activate the in-flow control devices (34).
E21B 7/20 - Driving or forcing casings or pipes into boreholes, e.g. sinkingSimultaneously drilling and casing boreholes
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
E21B 10/26 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers
An apparatus (5) for cutting a wellbore (1) is disclosed, the apparatus (5) comprising a motor provided with a stator (13) and a rotor (11), the rotor (11) being connected to a cutting structure (7) so as to drive the cutting structure (7) in use, wherein the stator (13) and rotor (11) are spaced radially outwardly of the axis of rotation of the rotor (11) such that at least one of the stator (13) and the rotor (11) is formed with an access bore (15) that extends through the motor to a position adjacent the cutting structure (7) and through which, in use, a further object (17) can be inserted, without obstruction from the stator (13) and rotor (11). Examples of the cutting structure include a drill bit, a reaming shoe, or a coring tool operative to cut a sample core for subsequent analysis.
An apparatus (5) for cutting a wellbore (1) is disclosed, the apparatus (5) comprising a motor provided with a stator (13) and a rotor (11), the rotor (11) being connected to a cutting structure (7) so as to drive the cutting structure (7) in use, wherein the stator (13) and rotor (11) are spaced radially outwardly of the axis of rotation of the rotor (11) such that at least one of the stator (13) and the rotor (11) is formed with an access bore (15) that extends through the motor to a position adjacent the cutting structure (7) and through which, in use, a further object (17) can be inserted, without obstruction from the stator (13) and rotor (11). Examples of the cutting structure include a drill bit, a reaming shoe, or a coring tool operative to cut a sample core for subsequent analysis.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downhole apparatus and tools for use in the oil and gas industries; downhole apparatus and tools for use in the oil and gas industry for the insertion of drilling equipment and parts and fittings therefor into wells; parts and fittings therefor. Hire of downhole apparatus and tools for use in the oil and gas industries; hire of downhole apparatus and tools for use in the oil and gas industries for the insertion of drilling equipment and parts and fittings therefor into wells; advisory and consultancy services relating thereto. Technical support services for downhole apparatus and tools for use in the oil and gas industries; advisory and consultancy services relating thereto.
A reaming tool (10) comprises a body (16) coupled to the leading end of a tubular component, such as a casing or liner string (12). The tool further comprises a shaft (22) mounted within the body (16) and the body (16) and the shaft (22) together define a rotary drive arrangement (32). A rotary seal (34) is provided between the body (16) and the shaft (22), the seal (34) adapted to permit relative rotation between the body (16) and the shaft (22) while substantially preventing fluid leakage therebetween. The tool (10) comprises a fluid conduit (40) arranged to direct fluid through the rotary drive arrangement (32) to drive rotation of the body (16) relative to the shaft (22) to facilitate reaming of the casing or liner string (12).
A reaming tool (10) comprises a body (16) coupled to the leading end of a tubular component, such as a casing or liner string (12). The tool further comprises a shaft (22) mounted within the body (16) and the body (16) and the shaft (22) together define a rotary drive arrangement (32). A rotary seal (34) is provided between the body (16) and the shaft (22), the seal (34) adapted to permit relative rotation between the body (16) and the shaft (22) while substantially preventing fluid leakage therebetween. The tool (10) comprises a fluid conduit (40) arranged to direct fluid through the rotary drive arrangement (32) to drive rotation of the body (16) relative to the shaft (22) to facilitate reaming of the casing or liner string (12).
A reaming tool in the form of reamer shoe (10) is adapted for location in a wellbore and comprises a substantiallytubular mandrel or body (12) having a central bore (14) located about an axis (15). A cap or nose (16) is coupled to a distal endportion of the body (12) via a connection (18). The nose (16) defines an eccentric offset portion or lobe (20) which extends to agreater axial extent than the remainder of the nose (16). A weighting arrangement is provided, the arrangement adapted to balancethe mass of the nose about a central axis of the shoe. The distal surface of the nose (16) comprises a substantially concave centralportion (17). The nose (16) further comprises a projection or dimple (19) on an opposing side of the nose (16) from the concavesurface.
A reaming tool in the form of reamer shoe (10) is adapted for location in a wellbore and comprises a substantially tubular mandrel or body (12) having a central bore (14) located about an axis (15). A cap or nose (16) is coupled to a distal end portion of the body (12) via a connection (18). The nose (16) defines an eccentric offset portion or lobe (20) which extends to a greater axial extent than the remainder of the nose (16). A weighting arrangement is provided, the arrangement adapted to balance the mass of the nose about a central axis of the shoe. The distal surface of the nose (16) comprises a substantially concave central portion (17). The nose (16) further comprises a projection or dimple (19) on an opposing side of the nose (16) from the concave surface.
A method of running a tubular string into a wellbore comprises running a bore-lining tubular string into a wellbore substantially without rotation, while rotating a cutting structure at a distal leading end of the tubular string. Other methods provide for rotation of the string and the provision of a non-rotating stabiliser towards the leading end of the string.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Downhole apparatus for use in the oil and gas industries; drilling devices for use in the oil and gas industries; parts and fittings therefor. Hire of downhole apparatus for use in the oil and gas industries; hire of drilling devices for use in the oil and gas industries; advisory and consultancy services relating thereto. Technical support services for downhole apparatus and drilling devices for use in the oil and gas industries; advisory and consultancy services relating thereto.
A method of running a tubular string into a wellbore comprises running a bore-lining tubular string into a wellbore substantially without rotation, while rotating a cutting structure at a distal leading end of the tubular string. Other methods provide for rotation of the string and the provision of a non-rotating stabiliser towards the leading end of the string.
