Downhole arrangement

Patent metadata

Field	Value
Publication number	US-10214994-B2
Application number	US-201414776907-A
Country	US
Kind code	B2
Filing date	Mar 14, 2014
Priority date	Mar 15, 2013
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A downhole arrangement ( 32 ) comprises first ( 34 ) and second ( 41 ) members, a lock profile ( 4 ) fixed relative to one of the first and second members, and a lock member ( 10 ) for engaging the at least one lock profile. A release member ( 40 ) is provided which is moveable to selectively lock the lock member in engagement with the lock profile so as to selectively secure the second member relative to the first member. Such a downhole arrangement may permit a releasable connection between the first and second members.

First claim

The invention claimed is:

1. A downhole arrangement comprising:
first and second members;
a lock profile fixed relative to one of the first and second members;
a lock member for engaging the lock profile; and
a release member comprising a profile having a locking section and a release section, the release section being moveable between a locking position in which the locking section of the release member supports the lock member to lock the lock member in engagement with the lock profile so as to restrict relative movement between the first and second members, and a release position in which the release section of the lock member de-supports the lock member such that the lock member is moveable relative to the lock profile so as to permit disengagement of the lock member from the lock profile and thereby permit relative movement between the first and second members, the release member comprising a driving feature for engaging the second member when the release member is in the release position to permit the release, member to drive the second member relative to the first member.

2. The downhole arrangement according to claim 1 , wherein movement of the release member from the locking position to the release position permits relative movement between the first and second members in response to a force applied to one or both of the first and second members.

3. The downhole arrangement according to claim 2 , wherein the force is transferred to one or both of the first and second members through the release member.

4. The downhole arrangement according to claim 1 , wherein the release member is configured to be actuated under the action of an actuator.

5. The downhole arrangement according to claim 1 , wherein the lock member comprises a key member.

6. The downhole arrangement according to claim 1 , wherein the lock member comprises a rolling body.

7. The downhole arrangement according to claim 1 , wherein the first member comprises or defines a sleeve.

8. The downhole arrangement according to claim 1 , wherein the lock profile is defined on an inner surface of an annular member.

9. The downhole arrangement according to claim 1 , wherein the downhole arrangement comprises a plurality of lock members.

10. The downhole arrangement according to claim 1 , wherein the second member comprises a sleeve having one or a plurality of apertures formed through a sidewall thereof, each aperture being configured to accommodate a corresponding lock member.

11. The downhole arrangement according to claim 1 , wherein the lock profile comprises a circumferentially continuous recess arranged about a longitudinal axis defined by the first member.

12. The downhole arrangement according to claim 1 , wherein the lock profile comprises a circumferentially discontinuous recess.

13. The downhole arrangement according to claim 12 , wherein the circumferentially discontinuous recess permits the lock member to lock the first and second members together so as to restrict relative axial or rotational motion therebetween.

14. The downhole arrangement according to claim 12 , wherein each lock profile is engageable by a corresponding lock member.

15. The downhole arrangement according to claim 1 , wherein the release member defines the profile on an outer surface thereof.

16. The downhole arrangement according to claim 1 , wherein the locking section is defined by a larger outer diameter or raised axial section of the outer surface of the release member.

17. The downhole arrangement according to claim 1 , wherein the release section is defined by a smaller outer diameter or lowered axial section of the outer surface of the release member.

18. The downhole arrangement according to claim 1 , wherein the release member is moveable from any one of a plurality of locking positions to the release position, wherein in each locking position the release member locks the lock member in engagement with the lock profile so as to restrict relative movement between the first and second members.

19. The downhole arrangement according to claim 18 , wherein the plurality of locking positions defines a continuous range of locking positions.

20. The downhole arrangement according to claim 19 , wherein the release member defines the profile on an outer surface thereof and wherein the size of the range of locking positions is defined by the extent of the locking section of the profile of the release member.

21. The downhole arrangement according to claim 1 , wherein the release member is moveable from the locking position to any one of a plurality of release positions in each of which the lock member is moveable relative to the lock profile so as to permit disengagement of the lock member from the lock profile and thereby permit relative movement between the first and second members.

22. The downhole arrangement according to claim 21 , wherein the plurality of release positions defines a continuous range of release positions.

23. The downhole arrangement according to claim 22 , when dependent on claim 15 , wherein the size of the range of release positions is defined by the extent of the release section of the profile of the release member.

24. The downhole arrangement according to claim 1 , wherein the release member is moveable from the locking position to a first release position at which the lock member first becomes moveable relative to the lock profile so as to permit disengagement of the lock member from the lock profile and thereby permit relative movement between the first and second members.

25. The downhole arrangement according to claim 1 , wherein the downhole arrangement is configured such that the driving feature of the release member first engages the second member when the release member is in a first release position.

26. The downhole arrangement according to claim 1 , wherein the downhole arrangement is configured such that the driving feature of the release member engages the second member when the release member is in a release position which is separated from the first release position by a predetermined distance.

27. The downhole arrangement according to claim 1 , comprising a releasable connector which restricts relative movement between the first and second members when connected, wherein the releasable connector is released upon application of a predetermined force.

28. The downhole arrangement according to claim 1 , wherein the release member is moveable from the release position to the locking position.

29. The downhole arrangement according to claim 1 , comprising at least a portion of a downhole tool for use in fluid injection into a subterranean formation.

30. The downhole arrangement according to claim 1 , comprising at least a portion of a downhole tool for fluid production from a subterranean formation.

31. The downhole arrangement according to claim 1 , wherein the release member is configurable to open a fluid port defined by the first member.

32. The downhole arrangement according to claim 1 , wherein the second member comprises a catcher for an object.

33. The downhole arrangement according to claim 1 , wherein:
the first member comprises a housing of a downhole tool, and defines at least one fluid port through a sidewall thereof;
the release member comprises a valve sleeve, and defi

Assignees

• Petrowell Ltd
• Weatherford Tech Holdings Llc

Inventors

• Manning Matthew
• Purkis Daniel George

Classifications

• E21B41/00

  Equipment or details not covered by groups E21B15/00 - E21B40/00 · CPC title

• E21B2034/007

  Fixed Constructions · mapped topic

• E21B34/14 Primary

  operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools {(E21B34/066 takes precedence)} · CPC title

• E21B2200/06

  Sleeve valves · CPC title

• E21B34/142 Primary

  unsupported or free-falling elements, e.g. balls, plugs, darts or pistons · CPC title