Method of setting and maintaining a tool in a set position for a period of time

Patent metadata

Field	Value
Publication number	US-9528342-B2
Application number	US-201313975557-A
Country	US
Kind code	B2
Filing date	Aug 26, 2013
Priority date	Aug 26, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A method of setting and maintaining a tool in a set position for a period of time includes the following. Causing a component of a device to move relative to another component of the device, interengaging one or more features of at least one of the components with the another component, creating a set condition of a tool engaged with the component and the another component with the causing and interengaging. A method of dissolving at least the one or more features when removal of the tool is desired.

First claim

What is claimed is:

1. A method of setting and maintaining a tool in a set position for a period of time in a borehole, comprising:
causing a component of a device to move in a first direction relative to another component of the device during setting of the tool;
interengaging one or more features of the component with the another component during the relative movement;
creating a set condition of the tool engaged with the component and the another component with the causing and interengaging;
and during unsetting of the tool, dissolving at least the one or more features and allowing the component and the another component to move in a second direction opposite the first direction relative to each other.

2. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising disengaging the component from the another component.

3. The method of setting and maintaining a tool in a set position for a period of time of claim 2 , further comprising setting a dissolution rate that results in the disengaging occurring after a selected period of time.

4. The method of setting and maintaining a tool in a set position for a period of time of claim 3 , wherein the selected period of time is after an operation has been completed.

5. The method of setting and maintaining a tool in a set position for a period of time of claim 4 , wherein the operation is one of fracing or treating a formation.

6. The method of setting and maintaining a tool in a set position for a period of time of claim 3 , wherein the setting a dissolution rate is at least in part done through selection of material of the component or the another component.

7. The method of setting and maintaining a tool in a set position for a period of time of claim 3 , wherein the setting a dissolution rate is at least in part done through selection of geometric parameters of the component or the another component.

8. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising exposing at least the one or more features to a fluid configured to dissolve the at least the one or more features.

9. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising exposing at least the one or more features to a fluid configured to dissolve the at least the component or the another component.

10. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the movement of the component relative to the another component is longitudinal movement.

11. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising longitudinally compressing the tool between the component and the another component.

12. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising ratchetingly engaging the one or more features of the component with the another component.

13. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the one or more features are teeth.

14. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the interengaging one or more features of the component with the another component includes interengaging a third component with each of the component and the another component.

15. The method of setting and maintaining a tool in a set position for a period of time of claim 14 , wherein the component, the another component and the third component are a mandrel, a housing and a body lock ring.

16. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , further comprising radially moving at least a portion of the tool with the movement of the component relative to the another component.

17. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the creating a set condition includes setting slips.

18. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the creating a set condition includes setting seals.

19. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the tool includes a frac seat.

20. The method of setting and maintaining a tool in a set position for a period of time of claim 1 , wherein the tool is a packer.

Assignees

• Xu Yingqing
• Xu Zhiyue
• Baker Hughes Inc

Inventors

• Xu Yingqing
• Xu Zhiyue

Classifications

• E21B33/128

  with a member expanded radially by axial pressure (E21B33/122, E21B33/124 take precedence) · CPC title

• E21B33/1293 Primary

  with means for anchoring against downward and upward movement (E21B33/1291, E21B33/1295 take precedence) · CPC title