CA2618311A1 - Apparatus and method for stabilization of downhole tools - Google Patents
Apparatus and method for stabilization of downhole tools Download PDFInfo
- Publication number
- CA2618311A1 CA2618311A1 CA 2618311 CA2618311A CA2618311A1 CA 2618311 A1 CA2618311 A1 CA 2618311A1 CA 2618311 CA2618311 CA 2618311 CA 2618311 A CA2618311 A CA 2618311A CA 2618311 A1 CA2618311 A1 CA 2618311A1
- Authority
- CA
- Canada
- Prior art keywords
- stabilization
- wellbore
- tubular body
- stabilizing
- stabilization member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Earth Drilling (AREA)
Abstract
A method and apparatus for stabilizing a downhole tool during a downhole operation is described herein. The method and apparatus include a stabilizer having a stabilization member adapted to move between a retracted position and an extended position in order to engage a surface in a wellbore. The stabilizer also includes a plurality of actuators adapted to move the stabilization members from the retracted position to the extended position.
Claims (21)
1. A method of stabilizing a downhole tool in a wellbore during a downhole operation, the method comprising:
coupling a stabilizing tool to the downhole tool, the stabilizing tool having a plurality of stabilization members;
running the downhole tool and the stabilizing tool into the wellbore; and applying a fluid pressure to the stabilization members to extend the stabilization members radially outward to engage a surface of the wellbore, wherein the stabilization members are extended along an axis which is offset from a radius of the stabilizing tool.
coupling a stabilizing tool to the downhole tool, the stabilizing tool having a plurality of stabilization members;
running the downhole tool and the stabilizing tool into the wellbore; and applying a fluid pressure to the stabilization members to extend the stabilization members radially outward to engage a surface of the wellbore, wherein the stabilization members are extended along an axis which is offset from a radius of the stabilizing tool.
2. The method of claim 1, further comprising rotating the stabilizing tool while engaging the surface with the stabilization members.
3. The method of claim 1, further comprising compliantly retracting the stabilization members upon encountering a restriction in the wellbore.
4. The method of claim 1, further comprising limiting the radial outward movement of the stabilization member by utilizing a mechanical stop.
5. The method of claim 1, wherein the surface is an inner diameter of a tubular.
6. The method of claim 1, wherein the stabilization member comprises a bearing pad.
7. The method of claim 1, wherein the stabilization member comprises a bearing roller.
8. The method of claim 1, wherein the fluid pressure is applied to a first piston area and a second piston area on each stabilization member.
9. An apparatus for stabilizing a downhole operation in a wellbore, comprising:
a tubular body;
a stabilization member operatively coupled to the tubular body and configured to engage a surface in the wellbore; and a fluid operated actuator at least partially contained within the tubular body and configured to move the stabilization member between a retracted position and an extended position along a non-radial axis of the tubular body.
a tubular body;
a stabilization member operatively coupled to the tubular body and configured to engage a surface in the wellbore; and a fluid operated actuator at least partially contained within the tubular body and configured to move the stabilization member between a retracted position and an extended position along a non-radial axis of the tubular body.
10. The apparatus of claim 9, further comprising a flexible member disposed between the stabilization member and the tubular body, wherein the flexible member is configured to absorb load variations in the wellbore.
11. The apparatus of claim 10, wherein the flexible member comprises one or more grooves formed in the actuator.
12. The apparatus of claim 10, wherein the flexible member comprises one or more springs.
13. The apparatus of claim 9, further comprising a mechanical stop configured to define the location of the extended position.
14. The apparatus of claim 9, wherein the surface is an inner diameter of a tubular.
15. The apparatus of claim 9, wherein the stabilization member comprises a bearing pad.
16. The apparatus of claim 9, wherein the stabilization member comprises a bearing roller.
17. The apparatus of claim 9, wherein the fluid operated actuator includes a piston area.
18. The apparatus of claim 17, further comprising a second fluid operated actuator having a piston area.
19 19. An apparatus for stabilizing a downhole tool, comprising:
a tubular body having a plurality of pockets formed therein;
a plurality of stabilization members disposed in the plurality of pockets, wherein the stabilization members are configured to engage a wall of a wellbore by moving from a retracted position to an extended position;
a fluid operated actuator configured to move each stabilization member between the retracted position and the extended position along an axis which is offset from a radius of the tubular body; and a bias member disposed between each stabilization member and the tubular body, the bias member is configured to allow each stabilization member to move radially in response to variations in the wall of the wellbore.
a tubular body having a plurality of pockets formed therein;
a plurality of stabilization members disposed in the plurality of pockets, wherein the stabilization members are configured to engage a wall of a wellbore by moving from a retracted position to an extended position;
a fluid operated actuator configured to move each stabilization member between the retracted position and the extended position along an axis which is offset from a radius of the tubular body; and a bias member disposed between each stabilization member and the tubular body, the bias member is configured to allow each stabilization member to move radially in response to variations in the wall of the wellbore.
20. The apparatus of claim 19, further comprising a second fluid actuator, wherein each fluid actuator includes a piston surface.
21. The apparatus of claim 19, wherein the pockets are helically arranged around tubular body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88515907P | 2007-01-16 | 2007-01-16 | |
| US60/885,159 | 2007-01-16 | ||
| US12/014,338 | 2008-01-15 | ||
| US12/014,338 US8082988B2 (en) | 2007-01-16 | 2008-01-15 | Apparatus and method for stabilization of downhole tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2618311A1 true CA2618311A1 (en) | 2008-07-16 |
| CA2618311C CA2618311C (en) | 2012-05-08 |
Family
ID=39616885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2618311A Expired - Fee Related CA2618311C (en) | 2007-01-16 | 2008-01-16 | Apparatus and method for stabilization of downhole tools |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2618311C (en) |
-
2008
- 2008-01-16 CA CA2618311A patent/CA2618311C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2618311C (en) | 2012-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210118 |
|
| MKLA | Lapsed |
Effective date: 20210118 |