CN102619483A - Double-system jam release safe hydraulic anchor - Google Patents
Double-system jam release safe hydraulic anchor Download PDFInfo
- Publication number
- CN102619483A CN102619483A CN2012100789174A CN201210078917A CN102619483A CN 102619483 A CN102619483 A CN 102619483A CN 2012100789174 A CN2012100789174 A CN 2012100789174A CN 201210078917 A CN201210078917 A CN 201210078917A CN 102619483 A CN102619483 A CN 102619483A
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- China
- Prior art keywords
- central tube
- unfreezing
- hydraulic anchor
- sleeve
- piston
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Abstract
The invention relates to a double-system jam release safe hydraulic anchor, which comprises a lower joint, a center tube and an upper joint. A boss is arranged on the outer diameter of the center tube, an injection hole is arranged on a side surface of the center tube, one end of the center tube is connected with the lower joint, the other end of the center tube is connected with a bush via an outer step, one end of the bush is connected with the upper joint, a dust cavity and a piston are disposed between the center tube and the lower joint, one end of the piston is connected with a lower taper sleeve, a jam release spring is disposed between an end surface of the piston and the boss of the center tube, the outer diameter of the upper joint is connected with an outer hook sleeve, the outer hook sleeve is slidably connected with an inner hook sleeve via an inner step of the outer hook sleeve, the outer diameter of the inner hook sleeve is connected with an upper taper sleeve, cage sleeves with through holes are respectively arranged on the outer diameter of the lower taper sleeve and the outer diameter of the upper taper sleeve, clamp teeth are arranged on oblique taper surfaces of the lower taper sleeve and the upper taper sleeve, are arranged in the through holes of the cage sleeves and extend to the outside of the cage sleeves, and a pressure spring is disposed between a waist groove of each clamp tooth and the corresponding cage sleeve. The problem that unpack and jam release of a hydraulic anchor cannot be realized smoothly is avoided thoroughly.
Description
Technical field
The present invention relates to a kind of two system unfreezing safety hydraulic anchor.
Background technology
The hydraulic anchor that always uses for many years all is the effect that relies on the wall spring; Realize the withdrawal deblocking of hydraulic anchor tooth, do not force to separate sealing mechanism, because various reasons such as fouling, corrosion cause hydraulic anchor deblocking failure mechanisms; Causing meeting the card accident happens occasionally; Its significant drawback is one to be that spring is ineffective after the burn into fouling acquires a certain degree, voluntarily deblocking; The 2nd, the no subsequent use sealing mechanism of separating in the stuck back of downhole tool causes accident to handle.
Summary of the invention
The technical problem that the present invention solved provides a kind of hydraulic anchor two system of problem unfreezing safety hydraulic anchor of deblocking, unfreezing smoothly of thoroughly avoiding.
For solving above-mentioned technical problem, the technical scheme that the present invention takes:
A kind of two system unfreezing safety hydraulic anchor, its special character is: comprise that lower contact, external diameter are provided with the central tube of boss, top connection, the side of central tube is provided with to annotate presses the hole; One end of central tube is connected with lower contact; The other end is connected with lining through outer step, and an end of lining is connected with top connection, is provided with dust and dirt chamber, piston between central tube and the lower contact; One end of piston is connected with following tapered sleeve, is provided with the unfreezing spring between the boss of piston end face and central tube; The external diameter of described top connection is connected with outer rhampotheca, and outer rhampotheca is slidingly connected through step in it and interior rhampotheca, and the external diameter of interior rhampotheca is connected with the epicone cover; The external diameter of described down tapered sleeve and last tapered sleeve is provided with the cage cover that has through hole, and the scalene cone of following tapered sleeve and last tapered sleeve is provided with the card tooth, and the card tooth is arranged in the through hole of cage cover and extends to the outside, and the gain of card tooth is provided with stage clip between overlapping with cage.
The lower end of above-mentioned lining is provided with the cross-notching of splitting the raised line coupling with the setting of central tube neck.
The upper end external diameter of above-mentioned central tube is provided with stopper slot and is connected with lining through stop screw.
Above-mentioned lining is connected with top connection through screw thread.
Be respectively arranged with O type circle between above-mentioned piston and lower contact, the central tube.
The through hole of above-mentioned cage cover is squarely to be provided with 8.
Above-mentioned card tooth one end is arranged in the dovetail groove of the conical surface.
Compared with prior art, beneficial effect of the present invention:
The present invention thoroughly avoids the hydraulic anchor problem of deblocking, unfreezing smoothly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is elaborated.
Referring to Fig. 1, the present invention includes central tube 10, top connection 17 that lower contact 1, external diameter are provided with boss, the side of central tube 10 is provided with to annotate presses hole 3; One end of central tube 10 is connected with lower contact 1; The other end is connected with lining 13 through outer step, and an end of lining 13 is connected with top connection 17, is provided with dust and dirt chamber 2, piston 5 between central tube 10 and the lower contact 1; One end of piston 5 is connected with following tapered sleeve 7, is provided with unfreezing spring 6 between the boss of the end face of piston 5 and central tube 10; The external diameter of described top connection 17 is connected with outer rhampotheca 15 through screw thread, and outer rhampotheca 15 is slidingly connected through step in it and interior rhampotheca 14, and the external diameter of interior rhampotheca 14 is connected with last tapered sleeve 11 through screw thread; The external diameter of described tapered sleeve 7 down and last tapered sleeve 11 is provided with the cage cover 12 that has through hole; The scalene cone of following tapered sleeve 7 and last tapered sleeve 11 is provided with card tooth 8; Card tooth 8 is arranged in the through hole of cage cover 12 and extends to the outside; Be provided with stage clip 9 between the gain of card tooth 8 and the cage cover 12, the conical surface width of last tapered sleeve 11 satisfies stretching into of tooth 8 of card and gets final product.
The lower end of above-mentioned lining 13 is provided with the cross-notching of splitting the raised line coupling with central tube 10 neck settings.
The upper end external diameter of above-mentioned central tube 10 be provided with stopper slot 16 and through stop screw be connected with lining 13 carry out spacing; The play of tapered sleeve about the restriction when needing grappling; When needing unfreezing, raised line gets in the groove when only allowing tubing string to rotate to the splitting raised line and align and guarantee the upper lifting pipe post of cross-notching and central tube 10 of lining 13.
Above-mentioned lining 13 is connected with top connection 17 through screw thread, makes only to keep interlock at axis direction between top connection 17 and the central tube 10, and circumferencial direction is for sliding.
Be respectively arranged with O type circle 4 between above-mentioned piston 5 and lower contact 1, the central tube 10, the outer wall of piston 5 and 1 sliding joining of lower contact, inwall and 10 sliding joining of central tube.
The through hole of above-mentioned cage cover 12 is squarely to be provided with 8.
Above-mentioned card tooth 8 one ends are arranged in the dovetail groove of the conical surface 11, can be with the upwards pullings of card tooth 8, prevent that itself and well bore wall wedge are dead, and increased the reliability of unfreezing.
When the needs grappling, liquid flows into through annotate pressing hole 3, promotes piston 5 and moves up with following tapered sleeve 7, block this moment tooth 8 stretch out gradually cage cover 12 until with the well bore wall grappling, in this motion process, cage cover 12 with on move on to the grappling completion.
When tubing string goes out well; Earlier tubing string is rotated in the forward 45 degree; The cross-notching on the lining 13 and the raised line of splitting of central tube 10 align at this moment, and the upper lifting pipe post gets final product smooth unfreezing thereupon, when on tubing string, carrying; Unfreezing spring 6 is being pushed up back it by under the situation about unloading at following tapered sleeve 7, and stage clip 9 will block tooth 8 automatically and push up back it is separated with well bore wall.
Claims (7)
1. make unfreezing safety hydraulic anchor for one kind pair; It is characterized in that: comprise that lower contact (1), external diameter are provided with the central tube (10) of boss, top connection (17); The side of central tube (10) is provided with to annotate presses hole (3), and an end of central tube (10) is connected with lower contact (1), and the other end is connected with lining (13) through outer step; One end of lining (13) is connected with top connection (17); Be provided with dust and dirt chamber (2), piston (5) between central tube (10) and the lower contact (1), an end of piston (5) is connected with following tapered sleeve (7), and the end face of piston (5) and central tube (are provided with unfreezing spring (6) between 10 the boss; The external diameter of described top connection (17) is connected with outer rhampotheca (15), and outer rhampotheca (15) is slidingly connected through step in it and interior rhampotheca (14), and the external diameter of interior rhampotheca (14) is connected with last tapered sleeve (11); The external diameter of described tapered sleeve (7) down and last tapered sleeve (11) is provided with the cage cover (12) that has through hole; The scalene cone of following tapered sleeve (7) and last tapered sleeve (11) is provided with card tooth (8); Card tooth (8) is arranged in the through hole of cage cover (12) and extends to the outside, is provided with stage clip (9) between the gain of card tooth (8) and the cage cover (12).
2. two system unfreezing safety hydraulic anchor according to claim 1, it is characterized in that: the lower end of described lining (13) is provided with the cross-notching of splitting the raised line coupling with central tube (10) neck setting.
3. two system unfreezing safety hydraulic anchor according to claim 1 and 2, it is characterized in that: the upper end external diameter of described central tube (10) is provided with stopper slot (16) and is connected with lining (13) through stop screw.
4. two system unfreezing safety hydraulic anchor according to claim 3, it is characterized in that: described lining (13) is connected with top connection (17) through screw thread.
5. two system unfreezing safety hydraulic anchor according to claim 4 is characterized in that: be respectively arranged with O type circle (4) between described piston (5) and lower contact (1), the central tube (10).
6. two system unfreezing safety hydraulic anchor according to claim 5 is characterized in that: the through hole of described cage cover (12) is squarely to be provided with 8.
7. two system unfreezing safety hydraulic anchor according to claim 6, it is characterized in that: described card tooth (8) one ends are arranged in the dovetail groove of the conical surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100789174A CN102619483A (en) | 2012-03-23 | 2012-03-23 | Double-system jam release safe hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100789174A CN102619483A (en) | 2012-03-23 | 2012-03-23 | Double-system jam release safe hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619483A true CN102619483A (en) | 2012-08-01 |
Family
ID=46559664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100789174A Pending CN102619483A (en) | 2012-03-23 | 2012-03-23 | Double-system jam release safe hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619483A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB922055A (en) * | 1961-08-14 | 1963-03-27 | Baker Oil Tools Inc | Tubing anchor for well conduit |
| FR2105247A1 (en) * | 1970-09-04 | 1972-04-28 | Schlumberger Technology Corp | |
| CN2835532Y (en) * | 2005-11-29 | 2006-11-08 | 新疆石油管理局钻井工艺研究院 | Whipstock anchoring device |
| CN201321827Y (en) * | 2008-12-15 | 2009-10-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Anti-sticking hydraulic anchor capable of continuous operation |
| CN202544779U (en) * | 2012-03-23 | 2012-11-21 | 李广青 | Dual clamping-release safety hydraulic anchor |
-
2012
- 2012-03-23 CN CN2012100789174A patent/CN102619483A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB922055A (en) * | 1961-08-14 | 1963-03-27 | Baker Oil Tools Inc | Tubing anchor for well conduit |
| FR2105247A1 (en) * | 1970-09-04 | 1972-04-28 | Schlumberger Technology Corp | |
| CN2835532Y (en) * | 2005-11-29 | 2006-11-08 | 新疆石油管理局钻井工艺研究院 | Whipstock anchoring device |
| CN201321827Y (en) * | 2008-12-15 | 2009-10-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Anti-sticking hydraulic anchor capable of continuous operation |
| CN202544779U (en) * | 2012-03-23 | 2012-11-21 | 李广青 | Dual clamping-release safety hydraulic anchor |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |