CN201802326U - Anchoring device capable of preventing rotation of underground pipe column - Google Patents
Anchoring device capable of preventing rotation of underground pipe column Download PDFInfo
- Publication number
- CN201802326U CN201802326U CN2010205516396U CN201020551639U CN201802326U CN 201802326 U CN201802326 U CN 201802326U CN 2010205516396 U CN2010205516396 U CN 2010205516396U CN 201020551639 U CN201020551639 U CN 201020551639U CN 201802326 U CN201802326 U CN 201802326U
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- China
- Prior art keywords
- rotation
- anchoring device
- pipe column
- lower contact
- underground pipe
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- Expired - Fee Related
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Abstract
The utility model discloses an anchoring device capable of preventing the rotation of an underground pipe column, which is used in petroleum industry, and used for rotation prevention and anchorage of the underground pipe column of an oil water well, is particularly applied to one-way rotation prevention, and can be used for high angle wells and horizontal wells. The anchoring device for preventing the rotation of the underground pipe column comprises an upper joint and a lower joint; the lower joint is provided with a liquid inlet hole; a stabilizing mechanism is installed in a piston cavity formed between the upper joint and the lower joint; a rotation prevention overturn plate mechanism is installed in an embedding groove of the lower joint; the stabilizing mechanism stabilizes the underground pipe column; and the rotation prevention overturn plate mechanism anchors the underground pipe column. When the pipe column is not in rotation, an overturn plate anchor is not anchored, thereby reducing the damage to a sleeve wall due to long-term anchoring. The larger the rotation torque of the pipe column larger is, the larger the anchorage force is, and the anchoring is ensured to be reliable. The anchoring device preventing the rotation of the underground pipe column rotation is provided with the stabilizing mechanism and also promotes the reliability of anchoring, and can be applied to high angle wells and horizontal wells.
Description
Technical field
The utility model relates to the downhole operation equipment of petroleum industry, and particularly down-hole string anti-rotation anchoring device is used for the anti-rotation grappling of oil-water well down-hole string, is particularly useful for the situation of unidirectional anti-rotation, can be used for high angle hole and horizontal well.
Background technology
In the oil field development operation process, the oil-water well down-hole string occurs torsion phenomenon because of a variety of causes through regular meeting.Usual way is to adopt hydraulic anchor, and tubing string is anchored on the casing wall.Because the counter-rotating torsional moment of down-hole string is bigger, adopt hydraulic anchor still to have the anchorage force deficiency, long term anchoring is damaged shortcomings such as sleeve pipe easily.
Summary of the invention
The purpose of this utility model is to develop down-hole string anti-rotation anchoring device, and particularly anchoring string under the big situation of reverse torque prevents that tubing string from rotating.The anchorage force that solves existing instrument existence is little, the problem of long term anchoring destructive envelope tube wall.
The purpose of this utility model is achieved in that down-hole string anti-rotation anchoring device comprises top connection and lower contact, lower contact is provided with inlet opening, righting mechanism is installed in the plunger shaft that forms between top connection and the lower contact, the anti-rotation panel turnover mechanism is installed in the caulking groove of lower contact, righting mechanism is set upright down-hole string, and the anti-rotation panel turnover mechanism is with the down-hole string grappling.
Compare with existing instrument and the utlity model has following useful effect: when tubing string did not rotate, the not grappling of turnover panel anchor reduced the damage of long term anchoring to casing wall.The moment of torsion of tubing string rotation is big more, and anchorage force is big more, guarantees that grappling is reliable.The utility model is provided with righting mechanism, has also increased the reliability of grappling, can be used for high angle hole and horizontal well.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 be among Fig. 1 A-A to sectional view.
The specific embodiment
Describe the concrete structure that down-hole string anti-rotation anchoring device is provided according to the utility model in detail below in conjunction with accompanying drawing.Referring to Fig. 1 and Fig. 2, down-hole string anti-rotation anchoring device comprises top connection 1 and lower contact 4, lower contact 4 is provided with inlet opening, and righting mechanism is installed in the plunger shaft that forms between top connection 1 and the lower contact 4, and the anti-rotation panel turnover mechanism is installed in the caulking groove of lower contact 4.Righting mechanism comprises piston 3 and steel ball 2, and the top cylindrical of piston 3 is stepped pyramidal structures, and circle being provided with admission chamber in its underpart, the corresponding setting of inlet opening of this admission chamber and lower contact 4; Steel ball 2 places the body wall of top connection 1.The anti-rotation panel turnover mechanism comprises turnover panel 5 and pressure ring 8, turnover panel 5 two ends are rotating shafts, in the annular chamber that rotating shaft upper sleeve through torsion spring 6 and bearing 7 at two ends, the rotating shaft at two ends are inlaid in the annular chamber that top connection 1 and lower contact 4 form respectively and lower contact 4 and pressure ring 8 form.The extrados of turnover panel 5 is gradually open form of dentation, and the extrados that just has sawtooth is the shape that departs from the center of circle gradually, and turnover panel 5 can rotate in lower contact 4, and along with outwards rolling of turnover panel 5, wedge is tight more more with casing wall for turnover panel 5.The body wall of top connection 1 is provided with radial direction through hole, interior dress steel ball 2, and the outer end of its radial direction through hole is provided with the retaining platform, and steel ball 2 can not be come off.Steel ball 2 also contacts with the stepped pyramidal structure of piston 3 top cylindricals, can eject steel ball 2 by moving up of piston 3, realizes the centralizing function of this device.Top connection 1 and lower contact 4 are by screw thread and screw.This device utilizes the extrados and the casing wall friction rolling of turnover panel 5, opens stuck tubing string gradually.Water filling is suppressed and is made piston 3 up, and promotion steel ball 2 ejects with casing wall and contacts, and plays the effect of setting upright tubing string.Torsion spring 6 compresses turnover panel 5 and makes it grappling just.Along with the rotation of tubing string, turnover panel 5 outwards rolls, and the extrados of turnover panel 5 becomes to depart from gradually the state in the center of circle, so along with outwards the rolling of turnover panel 5, wedge is tight more more with casing wall for turnover panel 5, the moment of torsion of tubing string rotation is big more, and anchorage force is big more, the effect of realization anchoring string.
Claims (6)
1. down-hole string anti-rotation anchoring device, comprise top connection (1) and lower contact (4), it is characterized in that lower contact (4) is provided with inlet opening, righting mechanism be installed in the plunger shaft that forms between top connection (1) and the lower contact (4) that the anti-rotation panel turnover mechanism is installed in the caulking groove of lower contact (4).
2. down-hole string anti-rotation anchoring device according to claim 1, it is characterized in that righting mechanism comprises piston (3) and steel ball (2), the top cylindrical of piston (3) is stepped pyramidal structure, and circle being provided with admission chamber in its underpart, the corresponding setting of inlet opening of this admission chamber and lower contact (4); Steel ball (2) places the body wall of top connection (1).
3. down-hole string anti-rotation anchoring device according to claim 1, it is characterized in that the anti-rotation panel turnover mechanism comprises turnover panel (5) and pressure ring (8), turnover panel (5) two ends are rotating shafts, in the annular chamber that rotating shaft upper sleeve through torsion spring (6) and bearing (7) at two ends, the rotating shaft at two ends are inlaid in the annular chamber that top connection (1) and lower contact (4) form respectively and lower contact (4) and pressure ring (8) form.
4. down-hole string anti-rotation anchoring device according to claim 3 is characterized in that the extrados of turnover panel (5) is gradually open form of dentation.
5. down-hole string anti-rotation anchoring device according to claim 1 and 2 is characterized in that the body wall of top connection (1) is provided with radial direction through hole, interior dress steel ball (2), and the outer end of its radial direction through hole is provided with the retaining platform.
6. down-hole string anti-rotation anchoring device according to claim 1 is characterized in that top connection (1) and lower contact (4) are by screw thread and screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205516396U CN201802326U (en) | 2010-09-26 | 2010-09-26 | Anchoring device capable of preventing rotation of underground pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205516396U CN201802326U (en) | 2010-09-26 | 2010-09-26 | Anchoring device capable of preventing rotation of underground pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802326U true CN201802326U (en) | 2011-04-20 |
Family
ID=43871831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205516396U Expired - Fee Related CN201802326U (en) | 2010-09-26 | 2010-09-26 | Anchoring device capable of preventing rotation of underground pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
| CN104481459A (en) * | 2014-11-18 | 2015-04-01 | 梁伟成 | Oil pumping system for screw pump |
| CN105863538A (en) * | 2016-04-11 | 2016-08-17 | 西南石油大学 | Anti-torsion tool for well drilling |
-
2010
- 2010-09-26 CN CN2010205516396U patent/CN201802326U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913161A (en) * | 2012-11-16 | 2013-02-06 | 西安鼎盛石油科技有限责任公司 | Straightening and anchoring device applied to horizontal open hole well |
| CN104481459A (en) * | 2014-11-18 | 2015-04-01 | 梁伟成 | Oil pumping system for screw pump |
| CN104481459B (en) * | 2014-11-18 | 2017-02-22 | 梁伟成 | Oil pumping system for screw pump |
| CN105863538A (en) * | 2016-04-11 | 2016-08-17 | 西南石油大学 | Anti-torsion tool for well drilling |
| CN105863538B (en) * | 2016-04-11 | 2018-01-05 | 西南石油大学 | A kind of anti-torsion instrument of drilling well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130926 |