CN2637711Y - Reverse circulation oil pump rod strengthener fishing barrel - Google Patents
Reverse circulation oil pump rod strengthener fishing barrel Download PDFInfo
- Publication number
- CN2637711Y CN2637711Y CN 03276663 CN03276663U CN2637711Y CN 2637711 Y CN2637711 Y CN 2637711Y CN 03276663 CN03276663 CN 03276663 CN 03276663 U CN03276663 U CN 03276663U CN 2637711 Y CN2637711 Y CN 2637711Y
- Authority
- CN
- China
- Prior art keywords
- centering device
- section
- catching
- cross
- elastic spring
- 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.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model relates to a catch sleeve used on the centering device of the reverse-circulation sucker rod and is mainly to solve the problems of the existing catching technology of a sucker rod centering device such as the low catching efficiency, the easy damage on the oil tube fish-top and the catching tools. The utility model has a serrate guide shoe (5) at the bottom with a hollow circular cylinder (1), a plurality of stops (4) are uniformly fixed along the circumference of a certain radial cross section at the inner wall of the circular cylinder; a plurality of elastic spring leaves (3) are uniformly fixed along the circumference of another radial cross section at the inner wall of the circular cylinder; the cross section of the elastic spring leaves (3) is above the cross section of the stops (4). The utility model has high efficiency in catching the centering device of the sucker rod and can effectively protect the fish-top of the oil pumping pipe during the catching process.
Description
Technical field:
The utility model relates to the used down-hole well workover in oilfield downhole operation field and salvages the class instrument, especially a kind of anti-circulation oil pumping rod centering device fishing socket of salvaging the oil pumping rod centering device fragment that damages in oil well casing that is applicable to.
Background technology:
In the oilfield downhole operation field, salvage from sucker rod and come off and the oil pumping rod centering device fragment fallen in the well liquid is an important job, finishing this work at present all is to adopt the fenestration fishing socket.Though the fenestration fishing socket is made and use operation all very simple, but because it is to utilize the time power of hitting or the above the pressure of the drill realization of 20000 newton salvaging, the feasible oil pumping rod centering device that comes off of the rigidity window tooth of high rigidity is gone into the fish difficulty and is caused the damage of top of fish easily, in addition when using this kind fishing socket near the oil well casing joint, to salvage, the improper oil pipe top of fish that makes easily of the pressure of the drill control enters overshot with slot, causes the damage of fishing tool and oil well oil conduit.
The utility model content:
For the oil pumping rod centering device that overcomes existing fenestration oil pumping rod centering device fishing socket existence is gone into the fish difficulty and is caused damage, the pressure of the drill of top of fish to control the improper deficiency that easily causes fishing tool and oil well oil conduit to damage easily; the utility model provides a kind of anti-circulation oil pumping rod centering device fishing socket, and the anti-circulation oil pumping rod centering device of this kind fishing socket has the advantages that to salvage oil pumping rod centering device efficient height, can effectively protect the oil pick-up tube top of fish in the salvaging process.
Technical solutions of the utility model are: the anti-circulation oil pumping rod centering device of this kind fishing socket comprises top connection, cylindrical shell, elastic spring, catch, guide shoe, cylindrical shell is a hollow cylinder, its lower end is fixed with the zigzag guide shoe, circumference evenly is fixed with some blocks in a certain radial cross-section upper edge of cylinder inboard wall, another radial cross-section upper edge circumference of wall evenly is fixed with the plurality of elastic reed within it in addition, and the cross section at elastic spring place is positioned on the cross section at block place.
The beneficial effect that the utlity model has is: enter the catch of cylindrical shell owing to take anti-circulation oil pumping rod centering device fishing socket in the such scheme to have some oil pipe tops of fish that prevent, so can effectively protect oil pipe top of fish and fishing socket itself injury-free; Owing to be equiped with the zigzag guide shoe, elastic spring has been installed in cylindrical shell in addition, has been made the oil pumping rod centering device fragment be easy to enter and improved salvaging efficient in the cylindrical shell in the cylindrical shell lower end.
Description of drawings:
Accompanying drawing 1 is the utility model structure sectional view;
1-top connection among the figure, 2-cylindrical shell, 3-elastic spring, 4-block, 5-guide shoe.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
By shown in Figure 1, the anti-circulation oil pumping rod centering device of this kind fishing socket comprises top connection 1, cylindrical shell 2, elastic spring 3, catch 4, guide shoe 5, top connection 1 is connected with cylindrical shell 2, cylindrical shell 2 is fixed with zigzag guide shoe 5 for its lower end of hollow cylinder, circumference evenly is fixed with some blocks 4 in a certain radial cross-section upper edge of cylindrical shell 2 inwalls, another radial cross-section upper edge circumference of wall evenly is fixed with plurality of elastic reed 3 within it, elastic spring 3 place cross sections are positioned on the block 4 place cross sections, should be that install at the 150mm place at distance guide shoe axial distance usually.
During actual the use, the utility model is connected by top connection 1 salvages the oil pipe lower end, transfer and touch the oil pumping rod centering device fragment to cylindrical shell 2 lower ends and promptly feel to meet obstructions to carry on the back and load to the tubing string suspending weight.After this adopt clear water or mud to carry out anti-circulation impact and just changeing oil pipe with hydraulic tongs simultaneously, the zigzag guide shoe 5 of cylindrical shell lower end is dialled the oil pumping rod centering device fragment diffusing, the oil pumping rod centering device fragment will enter fishing socket under the impact of circulation fluid, enter after the fragment that volume is bigger pushes elastic spring 3.Keep constant the pressure of the drill slowly to transfer, carry out anti-circulating fluid simultaneously continuously and impact, continue this process, a large amount of centralizer fragments will enter the salvaging cylindrical shell, and under the reverse barrier force effect of elastic spring, the fragment of being salvaged can not skid off from cylindrical shell.Transfer in the process at fishing socket, in a single day block 4 contacts with the oil pipe top of fish, can confirm in the short time, will stop to transfer, in order to avoid damage oil pipe and fishing socket.In whole salvaging process, should note observing pressure variation, circulation fluid outlet discharge capacity, when pressure raises, the outlet discharge capacity should stop to salvage when obviously reducing.Stop circulation fluid and inject back oil pumping rod centering device fragment falling on elastic spring, trip out with fishing string.Lay down the top connection of anti-circulation oil pumping rod centering device fishing socket, oppositely pour out the centralizer fragment, can continue to use after the connection top connection.
When salvaging, transfer drill string and do not have drilling depth, pump pressure and do not have significant change, when just changeing oil pipe and have bounce, illustrate that the centralizer fragment salvages totally substantially when discovery.
Claims (2)
1, a kind of anti-circulation oil pumping rod centering device fishing socket, comprise top connection (1), cylindrical shell (2), elastic spring (3), catch (4), guide shoe (5), it is characterized in that: the cylindrical shell (2) that the lower end is fixed with zigzag guide shoe (5) is a hollow cylinder, the a certain radial cross-section upper edge circumference of wall evenly is fixed with some blocks (4) within it, another radial cross-section upper edge circumference of wall evenly is fixed with plurality of elastic reed (3) within it, and elastic spring (3) place cross section is positioned on the cross section of block (4) place.
2, a kind of anti-circulation oil pumping rod centering device fishing socket according to claim 1 is characterized in that: block (4) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03276663 CN2637711Y (en) | 2003-08-25 | 2003-08-25 | Reverse circulation oil pump rod strengthener fishing barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03276663 CN2637711Y (en) | 2003-08-25 | 2003-08-25 | Reverse circulation oil pump rod strengthener fishing barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637711Y true CN2637711Y (en) | 2004-09-01 |
Family
ID=34302435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03276663 Expired - Fee Related CN2637711Y (en) | 2003-08-25 | 2003-08-25 | Reverse circulation oil pump rod strengthener fishing barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637711Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255404A (en) * | 2020-01-21 | 2020-06-09 | 大庆油田有限责任公司 | Fishing barrel for auger type sucker rod centralizer |
| CN111878004A (en) * | 2020-01-21 | 2020-11-03 | 大庆油田有限责任公司 | Rifling type sucker rod centralizer and oil pipe reverse circulation overshot |
-
2003
- 2003-08-25 CN CN 03276663 patent/CN2637711Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255404A (en) * | 2020-01-21 | 2020-06-09 | 大庆油田有限责任公司 | Fishing barrel for auger type sucker rod centralizer |
| CN111878004A (en) * | 2020-01-21 | 2020-11-03 | 大庆油田有限责任公司 | Rifling type sucker rod centralizer and oil pipe reverse circulation overshot |
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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: 20040901 Termination date: 20120825 |