Abstract: A downhole flow control device comprises a body locatable within a wall of a tubular, wherein the body defines a flow path therethrough to accommodate flow in reverse first and second directions between internal and external locations of the tubular in use. The downhole flow control device further comprises a regulator member mounted within the body and being moveable between first and second positions in accordance with flow direction through the body. The regulator member is locatable in the first position during flow through the body in the first direction to provide a first restriction to flow. The regulator member is locatable in the second position during flow through the body in the second direction to provide a second restriction to flow.

Abstract: A method of anchoring a morphable tubular in a wellbore includes providing a first tubular member including an expandable portion having an anchoring system arranged around a circumference thereof, the anchoring system including a gripper element, two wedge elements having inclined surfaces oriented to engage two oppositely arranged inclined surfaces of the gripper element, wherein each wedge element includes a beam spring, which are oppositely arranged to act against the inclined surfaces of the gripper element, locating the expandable portion in an existing tubular in a wellbore, introducing fluid pressure to an inner surface of the expandable portion and morphing the expandable portion towards the existing tubing so that the gripper element engages an inner surface of the existing tubing, reducing the fluid pressure, and maintaining engagement of the gripper element on the inner surface by action of the at least one beam spring axially on the gripper element.

Abstract: A downhole flow control device comprises a body locatable within a wall of a tubular, wherein the body defines a flow path therethrough to accommodate flow in reverse first and second directions between internal and external locations of the tubular in use. The downhole flow control device further comprises a regulator member mounted within the body and being moveable between first and second positions in accordance with flow direction through the body. The regulator member is locatable in the first position during flow through the body in the first direction to provide a first restriction to flow. The regulator member is locatable in the second position during flow through the body in the second direction to provide a second restriction to flow.

Abstract: A method of anchoring a morphable tubular in a wellbore includes providing a first tubular member including an expandable portion having an anchoring system arranged around a circumference thereof, the anchoring system including a gripper element, two wedge elements having inclined surfaces oriented to engage two oppositely arranged inclined surfaces of the gripper element, wherein each wedge element includes a beam spring, which are oppositely arranged to act against the inclined surfaces of the gripper element, locating the expandable portion in an existing tubular in a wellbore, introducing fluid pressure to an inner surface of the expandable portion and morphing the expandable portion towards the existing tubing so that the gripper element engages an inner surface of the existing tubing, reducing the fluid pressure, and maintaining engagement of the gripper element on the inner surface by action of the at least one beam spring axially on the gripper element.

Abstract: Apparatus and method for anchoring a morphable tubular in a wellbore in which an anchoring system is arranged around the circumference of an expandable portion of the tubular member. The anchoring system has a gripper element with oppositely arranged inclined surfaces and wedge elements having inclined surfaces mutually arranged on either side of the gripper element with at least one of the wedge elements being a beam spring. Following morphing of the tubular member the anchoring system is configured to maintain the gripper element in a radially extended position by action of the at least one beam spring and thereby increase the load bearing capacity of the morphed tubular member in the wellbore.

Abstract: A downhole actuator (30) comprises a tubular housing (34) which includes an indexing profile (42) on an inner surface thereof, and an indexing sleeve (46) mounted within the housing (34). The indexing sleeve (46) comprises an engaging arrangement including first and second axially spaced engagement members (52, 54) which cooperate with the indexing profile (42) of the housing (34) to be sequentially engaged by an actuation object (48) passing through a central bore (50) of the indexing sleeve (46) to drive the indexing sleeve (46) one discrete step of movement through the housing (34) towards an actuation site.

Abstract: A downhole tool (32) comprises a tool housing (34) defining a central bore (35) and including a fluid port (20), and a valve member (40) mounted within the housing (34) and being movable from a closed position in which the fluid port (20) is blocked to an open position in which the fluid port (20) is opened. The tool (32) further comprises a catching arrangement (41) mounted within the housing (34) and comprising one or more radially movable seat members (106), and being configurable from a free configuration in which the seat members (106) permit an object (48) to pass through the tool (32), to a catching configuration in which the seat members (106) catch an object (48) passing through the tool (32).

Abstract: A downhole tool (32) comprises a tool housing (34) defining a central bore (35) and including a fluid port (20), and a valve member (40) mounted within the housing (34) and being moveable from a closed position in which the fluid port (20) is blocked to an open position in which the fluid port (20) is opened. The tool (32) further comprises a catching arrangement (41) mounted within the housing (34) and comprising one or more radially moveable seat members (106), and being configurable from a free configuration in which the seat members (106) permit an object (48) to pass through the tool (32), to a catching configuration in which the seat members (106) catch an object (48) passing through the tool (32).

Abstract: A downhole actuator (30) comprises a tubular housing (34) which includes an indexing profile (42) on an inner surface thereof, and an indexing sleeve (46) mounted within the housing (34). The indexing sleeve (46) comprises an engaging arrangement including first and second axially spaced engagement members (52, 54) which cooperate with the indexing profile (42) of the housing (34) to be sequentially engaged by an actuation object (48) passing through a central bore (50) of the indexing sleeve (46) to drive the indexing sleeve (46) one discrete step of movement through the housing (34) towards an actuation site.

Abstract: A downhole tool (32) comprises a tool housing (34) defining a central bore (35) and including a fluid port (20), and a valve member (40) mounted within the housing (34) and being moveable from a closed position in which the fluid port (20) is blocked to an open position in which the fluid port (20) is opened. The tool (32) further comprises a catching arrangement (41) mounted within the housing (34) and comprising one or more radially moveable seat members (106), and being configurable from a free configuration in which the seat members (106) permit an object (48) to pass through the tool (32), to a catching configuration in which the seat members (106) catch an object (48) passing through the tool (32).

Abstract: A downhole shifting tool (100) for shifting a downhole component (46) comprises a body with a positioning arrangement (108) provided on the body for engaging or interacting with a downhole component to provide alignment of the shifting tool with said component. The tool further includes a connecting member (110) provided on the body and being moveable to selectively engage a connection profile of the downhole component.

Abstract: A downhole cementing apparatus (10) comprises a body (18) and a sealing arrangement (20) mounted on the body. The cementing apparatus (10) is deployable through a downhole tool (12) with a volume of cement (14). The sealing arrangement (20) is configured to define a varying point of sealing contact axially along the sealing arrangement with an inner surface of a downhole tool (12) as the cementing apparatus (10) is deployed through said tool.

Abstract: A downhole catching apparatus (20) comprises a plurality of radially moveable seat members (26) arranged circumferentially around a longitudinal axis, wherein the seat members are moveable between a radially extended configuration which permits passage of an object (64) therethrough and a radially retracted configuration which permits an object (64) to be caught by the apparatus. A releasable lock arrangement (44) is provided for releasably retaining the seat members in the radially extended configuration.

Abstract: A downhole shifting tool (100) for shifting a downhole component (46) comprises a body with a positioning arrangement (108) provided on the body for engaging or interacting with a downhole component to provide alignment of the shifting tool with said component. The tool further includes a connecting member (110) provided on the body and being moveable to selectively engage a connection profile of the downhole component.

Abstract: A downhole actuating apparatus (10) comprising a body (12), an object (14) provided on the body, and a sealing arrangement (30) provided on the body and axially spaced from the object. In use, the apparatus (10) is deployed downhole until the object (14) engages an obstacle (44). The sealing arrangement is configured to provide protection for the object during deployment of the apparatus and/or while the apparatus is engaged with the obstacle.

Abstract: A valve assembly comprises a conduit having a throughbore and defining a longitudinal axis, a sealing member that is moveable between an open configuration in which the throughbore of the conduit is open, and a sealing configuration in which the sealing member is arranged to substantially obturate the throughbore of the conduit, wherein in the sealing configuration, the sealing member seals the throughbore along a sealing line at least a part of which is angled relative to a direction perpendicular to the axis of the throughbore.

Abstract: An apparatus and method for securing a tubular within another tubular or borehole, creating a seal across an annulus in a well bore, and centralising or anchoring tubing within a wellbore. A sleeve is arranged on a tubular body to create a chamber therebetween. A port provides fluid access through the body to the chamber. Each end of the sleeve is covered by a cylindrical portion of a connector. When fluid is introduced into the chamber the sleeve is morphed to secure it to a well bore wall and the ends of the sleeve are morphed to each cylindrical portion. The connection between the sleeve and body does not require a weld. The cylindrical portions may also be shrink fitted to the ends of the sleeves.

Abstract: Apparatus and method for anchoring a morphable tubular in a wellbore in which an anchoring system is arranged around the circumference of an expandable portion of the tubular member. The anchoring system has a gripper element with oppositely arranged inclined surfaces and wedge elements having inclined surfaces mutually arranged on either side of the gripper element with at least one of the wedge elements being a beam spring. Following morphing of the tubular member the anchoring system is configured to maintain the gripper element in a radially extended position by action of the at least one beam spring and thereby increase the load bearing capacity of the morphed tubular member in the wellbore.

Abstract: A downhole apparatus (10) for use in activating a downhole tool (T). The apparatus (10) comprises a seat (18) configured to receive an object, such as a ball (16). The seat (18) comprises a convex object engaging surface (24) for engaging the object.

Abstract: A downhole actuator (30) comprises a tubular housing (34) which includes an indexing profile (42) on an inner surface thereof, and an indexing sleeve (46) mounted within the housing (34). The indexing sleeve (46) comprises an engaging arrangement including first and second axially spaced engagement members (52, 54) which cooperate with the indexing profile (42) of the housing (34) to be sequentially engaged by an actuation object (48) passing through a central bore (50) of the indexing sleeve (46) to drive the indexing sleeve (46) one discrete step of movement through the housing (34) towards an actuation site.