CN2916105Y - Actively-retractable type high-temperature tubing string anchoring device - Google Patents
Actively-retractable type high-temperature tubing string anchoring device Download PDFInfo
- Publication number
- CN2916105Y CN2916105Y CN 200520145930 CN200520145930U CN2916105Y CN 2916105 Y CN2916105 Y CN 2916105Y CN 200520145930 CN200520145930 CN 200520145930 CN 200520145930 U CN200520145930 U CN 200520145930U CN 2916105 Y CN2916105 Y CN 2916105Y
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- China
- Prior art keywords
- cone
- central tube
- tubing string
- pawl spring
- outside
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- Expired - Fee Related
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Abstract
The utility model relates to an actively-retractable type high-temperature tubing string anchoring device used for steam drive heavy oil production well, which comprises a bushing(1), a shear pin(2), a cone (3), a slip(4), a friction body(5), a protecting sleeve(6), a pawl spring(7) and a central tube(8). The bushing (1) is positioned on the upper outside of the central tube (8). The cone (3) is positioned on the lower outside of the bushing (1), which is connected with the cone (3) through the shear pin (2). The cone (3) is connected with the slip (4) on the outside through the cone surface. The friction body (5) is arranged on the lower part of the slip (4), and the protecting sleeve (6) is arranged on the lower part of the friction body (5). The protecting sleeve (6) is connected with the central tube (8) through screw thread. The pawl spring(7), which is connected with the central tube(8) through special screw thread, is arranged on the inner side of the protecting sleeve(6). The device provides novel structure and steady performance. Oil pipe rod squirm can be eliminated, and free oil pipe rod stretching and retracting can be guaranteed, thus the utility model ensures efficient and steady operation of the steam drive heavy oil production well pump.
Description
Technical field:
The utility model relates to a kind of downhole hardware that is used for the thick oil steam drive producing well.
Background technology:
The thick oil steam drive producing well is on the one hand because its variation of temperature, and tubing string can produce bigger flexible, during oil well production, can cause the wriggling of tubing string, thereby pump efficiency and output are reduced on the other hand.In order to solve the flexible problem of oil pipe, can consider to use conventional telescopic compensator.Conventional expansion loop generally is to lay in certain stroke in advance, when generation is flexible, puts in the row compensation by contracting of expansion loop.In order to solve the problem of oil pipe wriggling, use tubing anchor usually, by tubing anchor tubing string is anchored on the sleeve pipe.Yet in the viscous crude producing well of steam flooding, the flexible and wriggling of oil pipe exists simultaneously, and on-the-spot at present also do not have a kind ofly can solve this device to contradiction simultaneously, thereby the heavy oil wells ordinary production is constituted harmful effect.
Summary of the invention:
The purpose of this utility model be to provide a kind of can the grappling tubing string in the thick oil steam drive producing well eliminate the tubing string wriggling, again can be when surpassing peristaltic forces the telescopic high temperature oil tubing string of the active anchoring device of retractable.
The utility model is to realize like this.This kind anchoring device is made up of lining, shear pin, cone, slips, friction piece, protective sleeve, pawl spring and central tube, the central tube upper outside is set with lining, the outside, lining bottom is set with cone, and is connected with cone by shear pin, constitutes safety and separates sealing mechanism; Cone is assembled mutually by the slips of the conical surface with its outside, and the slips below is provided with friction piece, and friction piece and central tube are slidingly matched, and constitute the grappling setting mechanism; The friction piece below is provided with protective sleeve, and protective sleeve is connected with friction piece by screw thread, is provided with pawl spring in the groove of protective sleeve inboard, and pawl spring links to each other with central tube by special thread, constitutes the pawl spring contact mechanism.Underground work when construction, with under this device behind design attitude, rotation tubing string, grappling setting mechanism are realized setting, and whole device is anchored on design attitude.Pawl spring mechanism links to each other with tubing string by pawl spring, both can overcome well resistance down, eliminate the wriggling that tubing string produces in the manufacturing process, again can be when temperature produces bigger variation or is subjected to external force effect (deblocking) under the stressed situation of tubing string greater than wriggling generation power, tubing string freely stretches by pawl spring, thereby guarantees the oil well pump operate as normal and improve pump efficiency.During deblocking, bushing pipe and cone produce relative motion, and shear pin is cut off, and cone loses the control of shear pin, and slips is regained, and realizes smooth deblocking.
The utility model is reasonable in design, novel structure, reliable operation, owing to wherein be provided with pawl spring formula contact mechanism, can eliminate the wriggling of tubing string, again can be big or guarantee that tubing string can freely stretch when being subjected to external force in variations in temperature, thus assurance steam flooding viscous crude producing well oil well pump is than operate as normal under the high pump efficiency.The safety of this device is separated sealing mechanism also can guarantee smooth deblocking, avoids hard card, improves the construction success rate.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of lining 1, shear pin 2, cone 3, slips 4, friction piece 5, protective sleeve 6, pawl spring 7 and central tube 8, its structure, assembled relation are as follows: central tube 8 upper outside are set with lining 1, the outside, lining 1 bottom is set with cone 3, and is connected with cone 3 by shear pin 2; Cone 3 is assembled mutually by the slips 4 of the conical surface with its outside, and slips 4 belows are provided with friction piece 5, and friction piece 5 and its inner central tube 8 are for being slidingly matched; Friction piece 5 belows are provided with protective sleeve 6, and protective sleeve 6 is connected with friction piece 5 by screw thread, are provided with pawl spring 7 in the groove of protective sleeve 6 inboards, and pawl spring 7 links to each other with central tube 8 in it by special thread.
Claims (1)
1, the telescopic high temperature oil tubing string of a kind of active anchoring device, form by lining (1), shear pin (2), cone (3), slips (4), friction piece (5), protective sleeve (6), pawl spring (7) and central tube (8), it is characterized in that: central tube (8) upper outside is set with lining (1), the outside, lining (1) bottom is set with cone (3), and is connected with cone (3) by shear pin (2); Cone (3) is assembled mutually by the slips (4) of the conical surface with its outside; slips (4) below is provided with friction piece (5); friction piece (5) and its inner central tube (8) are for being slidingly matched; friction piece (5) below is provided with protective sleeve (6); protective sleeve (6) is connected with friction piece (5) by screw thread; be provided with pawl spring (7) in the inboard groove of protective sleeve (6), pawl spring (7) links to each other with central tube (8) in it by special thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145930 CN2916105Y (en) | 2005-12-19 | 2005-12-19 | Actively-retractable type high-temperature tubing string anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145930 CN2916105Y (en) | 2005-12-19 | 2005-12-19 | Actively-retractable type high-temperature tubing string anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916105Y true CN2916105Y (en) | 2007-06-27 |
Family
ID=38187013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520145930 Expired - Fee Related CN2916105Y (en) | 2005-12-19 | 2005-12-19 | Actively-retractable type high-temperature tubing string anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916105Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155399A (en) * | 2011-03-18 | 2011-08-17 | 无锡市华茂电器研究所 | Pipe jacket for peristaltic pump |
| CN104594817A (en) * | 2014-11-29 | 2015-05-06 | 牡丹江市金环石化设备有限公司 | Oil tube anchor with triple functions |
| CN114856486A (en) * | 2022-03-10 | 2022-08-05 | 江苏柯沣石化机械有限公司 | Oil pipe packer with rubber barrel convenient to replace |
-
2005
- 2005-12-19 CN CN 200520145930 patent/CN2916105Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155399A (en) * | 2011-03-18 | 2011-08-17 | 无锡市华茂电器研究所 | Pipe jacket for peristaltic pump |
| CN104594817A (en) * | 2014-11-29 | 2015-05-06 | 牡丹江市金环石化设备有限公司 | Oil tube anchor with triple functions |
| CN104594817B (en) * | 2014-11-29 | 2016-08-24 | 牡丹江市金环石化设备有限公司 | A kind of tubing anchor with triple functions |
| CN114856486A (en) * | 2022-03-10 | 2022-08-05 | 江苏柯沣石化机械有限公司 | Oil pipe packer with rubber barrel convenient to replace |
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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: 20070627 Termination date: 20101219 |