CN201574726U - Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields - Google Patents
Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields Download PDFInfo
- Publication number
- CN201574726U CN201574726U CN2009203528235U CN200920352823U CN201574726U CN 201574726 U CN201574726 U CN 201574726U CN 2009203528235 U CN2009203528235 U CN 2009203528235U CN 200920352823 U CN200920352823 U CN 200920352823U CN 201574726 U CN201574726 U CN 201574726U
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- pressure
- cylinder sleeve
- piston
- central tube
- pressure limiting
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Abstract
The utility model relates to the field of oil extraction tools for oilfields, in particular to a resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields. The oil drainage device adopts the technical scheme that an upper joint, a slip conical body, slip teeth, a cylinder sleeve, a central pipe, pistons, a return spring and a lower joint are included. The oil drainage device is characterized in that a positive drive upside-down drainage mechanism is formed by the upper joint, the slip conical body, and a pressure cap arranged therebetween; the pistons arranged between the central pipe and the cylinder sleeve consist of a moving piston and a fixed piston, and form an ascending anchoring hydraulic mechanism with the cylinder sleeve, the central pipe and the slip teeth; and a pressure-limiting ring and a pressure-limiting shear pin mounted between the central pipe and the lower joint form a pressure-limiting anchoring mechanism. The utility model has the advantages of reasonable design, reliable performance, complete functions and flexible motions.
Description
Technical field
The utility model relates to a kind of oil well in the oil field operation field of tool with deterring pressure limiting grappling bleeder.Be used at oil pumping manufacturing process grappling pump barrel and earial drainage when tripping out pump barrel, thereby reach the increase pump efficiency, prevent oil pipe disconnected take off with earial drainage after play flow string instrument free from environmental pollution.
Background technology
Existing grappling bleeder is made up of top connection, slips cone, slip insert, cylinder sleeve, inner central tube, welding piston, spring and lower pressing cap.When being used for the pump barrel grappling, the hydraulic action that relies on pump to take out self upwards pushes the slips cone in cylinder sleeve, and slip insert is up to be stung tight sleeve pipe and realize grappling thereby drive, and in the time will playing the pump earial drainage, the main story flow string is realized earial drainage.Because problems such as simple in structure and sealing system is unreasonable cause pressure system work unreliable, the subject matter of exposure be do not have the protection that is hampered in the process of going into the well, bit freezing etc. when pump is taken out seepage in the process, slip insert inordinate wear, earial drainage, trip-out in advance.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, provide a kind of protection that is hampered, better anti-leakage property, should not bit freezing oil well with deterring pressure limiting grappling bleeder.
Its technical scheme is: comprise top connection, slips cone, slip insert, cylinder sleeve, central tube, piston, return spring and lower contact, it is characterized in that: the pressure cap that is arranged between top connection and the slips cone is formed main story back-off earial drainage mechanism with top connection and slips cone; The piston that is arranged between central tube and the cylinder sleeve is made up of move about piston and fixed piston two parts, and forms up grappling hydraulic mechanism with cylinder sleeve, central tube, slip insert; The pressure limiting ring and the pressure limiting shear pin that are arranged between central tube and the lower contact are formed the pressure limiting anchor mechanism.
Such scheme also comprises: set up fixedly lock ring in the joint portion of piston and central tube.
The pressure limiting grappling bleeder that deters of the present utility model, the problems such as earial drainage, slacking off grappling, sealing system seepage, the insecure abrasion deformation bit freezing of slip insert grappling in advance that former product comes out have been solved, well solved the many-sided technical problem of existing in prior technology, by use at tens of wells of Shengli Oil Field time, prove fully this product design rationally, dependable performance, complete function, flexible movements.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment.Among the figure: the 1-top connection; The 2-pressure cap; 3-slips cone; The 4-slip insert; The 5-piston that moves about; The 6-fixed piston; 7-is lock ring fixedly; The 8-cylinder sleeve; The 9-return spring; 10-pressure limiting ring; 11-pressure limiting shear pin; The 12-central tube; 13-lower contact (or claiming to deter joint).
The specific embodiment:
With reference to accompanying drawing, the structure that this utility model is different from existing product is mainly reflected in: the piston 5 that, moves about, cylinder sleeve 8, fixed piston 6, central tube 12, slip insert 4 are formed up grappling hydraulic system; Two, top connection 1, pressure cap 2, slips cone 3 are formed main story back-off earial drainage mechanism; Three, increasing fixedly, lock ring 7, the piston 5 that moves about make sealing system rationally reliable more; Four, increase pressure limiting ring 10, pressure limiting shear pin 11 and deter the function that joint 13 is implemented in be hampered in the going down process not grappling and restriction grappling under design pressure.The grappling in advance that grappling bleeder going down process prevents to be hampered and the wellbore pressure imbalance causes is satisfied in this design fully, and the improvement of sealing load system has simultaneously thoroughly solved the difficult problem that old product shifts to an earlier date earial drainage and unfreezing difficulty even bit freezing.
The operating principle of accompanying drawings instrument.
Each part of instrument is assembled according to illustrated relative position.At first fixedly lock ring 7 is enclosed within central tube 12 stopper slot places, and fixed piston 6 is threaded with fixing lock ring 7, and the piston 5 that moves about is inserted in central tube 12.Top connection 1 spinner is connected with slips cone 3, pressure cap 2 is connected with slips cone 3, be inserted in central tube after cylinder sleeve 8, slip insert 4,3 assemblings of slips cone, cylinder sleeve 8 is inserted in the piston 5 that moves about, central tube 12 is threaded firmly with slips cone 3, and return spring 9 is put into cylinder sleeve 8, and pressure limiting ring 10 is threaded with cylinder sleeve 8, lower contact 13 is connected with central tube 12, adjusts pressure limiting ring 10 positions at last pressure limiting shear pin 11 is screwed.
During use, hydraulic coupling promote to move about piston 5, cylinder sleeve 8 moves to top along central tube 12, simultaneously spacing shear pin 11 cut off, and slip insert 4 released stung tight sleeve pipe and realize grappling.During trip-out, the main story tubing string makes top connection 1 expose with respect to slips cone 3 back-offs.
Claims (2)
1. an oil well is with deterring pressure limiting grappling bleeder, comprise top connection, slips cone, slip insert, cylinder sleeve, central tube, piston, return spring and lower contact, it is characterized in that: the pressure cap that is arranged between top connection and the slips cone is formed main story back-off earial drainage mechanism with top connection and slips cone; The piston that is arranged between central tube and the cylinder sleeve is made up of move about piston and fixed piston two parts, and forms up grappling hydraulic mechanism with cylinder sleeve, central tube, slip insert; The pressure limiting ring and the pressure limiting shear pin that are arranged between central tube and the lower contact are formed the pressure limiting anchor mechanism.
2. oil well according to claim 1 is characterized in that: set up fixedly lock ring in the joint portion of piston and central tube with deterring pressure limiting grappling bleeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203528235U CN201574726U (en) | 2009-12-22 | 2009-12-22 | Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203528235U CN201574726U (en) | 2009-12-22 | 2009-12-22 | Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574726U true CN201574726U (en) | 2010-09-08 |
Family
ID=42694602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203528235U Expired - Fee Related CN201574726U (en) | 2009-12-22 | 2009-12-22 | Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574726U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712275A (en) * | 2014-12-16 | 2015-06-17 | 中国地质科学院勘探技术研究所 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
| CN108561107A (en) * | 2018-06-28 | 2018-09-21 | 唐山冀东石油机械有限责任公司 | Multistage water injection process pipe string and its remove method |
| CN109653697A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | Oil pipe hydraulic cuts fishing tool |
| CN110439489A (en) * | 2019-09-18 | 2019-11-12 | 东营市元捷石油机械有限公司 | Fill the water anti-jack slips anchor |
| CN110593791A (en) * | 2019-11-15 | 2019-12-20 | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院 | Hydraulic control type safety support anchoring device and using method thereof |
-
2009
- 2009-12-22 CN CN2009203528235U patent/CN201574726U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712275A (en) * | 2014-12-16 | 2015-06-17 | 中国地质科学院勘探技术研究所 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
| CN104712275B (en) * | 2014-12-16 | 2017-05-24 | 中国地质科学院勘探技术研究所 | Protective wall expansion conical head of geological drilling corrugated expansion pipe |
| CN109653697A (en) * | 2017-10-11 | 2019-04-19 | 中国石油化工股份有限公司 | Oil pipe hydraulic cuts fishing tool |
| CN108561107A (en) * | 2018-06-28 | 2018-09-21 | 唐山冀东石油机械有限责任公司 | Multistage water injection process pipe string and its remove method |
| CN110439489A (en) * | 2019-09-18 | 2019-11-12 | 东营市元捷石油机械有限公司 | Fill the water anti-jack slips anchor |
| CN110593791A (en) * | 2019-11-15 | 2019-12-20 | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院 | Hydraulic control type safety support anchoring device and using method thereof |
| CN110593791B (en) * | 2019-11-15 | 2020-02-07 | 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院 | Hydraulic control type safety support anchoring device and using method thereof |
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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: 20100908 Termination date: 20131222 |