CN201306142Y - Polished rod salvaging device used in oil field - Google Patents
Polished rod salvaging device used in oil field Download PDFInfo
- Publication number
- CN201306142Y CN201306142Y CNU2008201733599U CN200820173359U CN201306142Y CN 201306142 Y CN201306142 Y CN 201306142Y CN U2008201733599 U CNU2008201733599 U CN U2008201733599U CN 200820173359 U CN200820173359 U CN 200820173359U CN 201306142 Y CN201306142 Y CN 201306142Y
- Authority
- CN
- China
- Prior art keywords
- marble
- neck bush
- spring
- slingshot
- polished rod
- 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
Links
Abstract
The utility model relates to a tool for downhole operation, in particular to a polished rod fishing device used in an oil field. The technical scheme thereof is that the device mainly comprises a fisher body, a marble, a neck bush and a rod-shaped falling object; a tapered surface is arranged in the inner cavity of the fisher body; the neck bush is arranged on the bottom part of the fisher body; the marble is arranged in a marble groove on the neck bush; a spring is arranged at the lower end of the marble groove; and the marble is connected with the lower end of the marble groove through the spring. The device has the beneficial effects that the marble can fall in time through the pulling and shrinking of the spring, the falling object can be jammed timely, thereby fishing the rod-shaped falling object successfully; and the operation success ratio is high, and the operation cost is saved.
Description
One, technical field:
The utility model relates to a kind of underground work instrument, particularly a kind of oil field polished rod fishing device.
Two, background technology:
In petroleum industry, for the situation of down-hole polished rod fracture, existing fishing tool is difficult to it is caught, and is difficult to it is salvaged, and finally can only adopt workover treatment to solve, the operating cost height, and it is long to stop the well time; At this situation, the Chinese patent literature publication number is: CN2591216Y, a kind of " the shaft-like fishing junk device in down-hole " disclosed, designed a kind of fisher of cylinder type structure, utilize pellet shot from a slingshot unidirectional freedom in cone space, oppositely the design feature of tensioner with fisher and trouble of lost tool in hole locking, can be salvaged well to junk smoothly; But the problem of its existence is: pellet shot from a slingshot utilizes the effect of gravity to descend, and might be able to not fall, and is difficult to block shaft-like junk, causes the fishing failure.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of oil field polished rod fishing device is provided, and pellet shot from a slingshot is fallen, and blocks shaft-like junk accurately.
Its technical scheme is: mainly be made up of fisher main body, pellet shot from a slingshot, neck bush and shaft-like junk, inner chamber in the fisher main body is provided with taper surface, neck bush is sitting in the bottom of fisher main body, pellet shot from a slingshot is installed in the bullet groove on the neck bush, lower end in described bullet groove is provided with spring, and pellet shot from a slingshot is connected the lower end of bullet groove by spring.
The beneficial effects of the utility model are: the tractive strong by spring shrinks, and pellet shot from a slingshot is in time fallen, and blocks junk timely, successfully salvages shaft-like junk, and the job success ratio height is saved operating cost.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Five, the specific embodiment:
In conjunction with the accompanying drawings 1, the utility model will be further described:
Mainly form by fisher main body 1, pellet shot from a slingshot 2, neck bush 3 and shaft-like junk 4, inner chamber in fisher main body 1 is provided with taper surface 6, neck bush 3 is sitting in the bottom of fisher main body 1, pellet shot from a slingshot 2 is installed in 7 li of bullet groove on the neck bush 3, be provided with spring 5 in the lower end of described bullet groove 7, pellet shot from a slingshot 2 is connected the lower end of bullet groove by spring.Wherein, bullet groove 7 is parallel to the taper surface setting of fisher main body inner chamber, makes the upper end pine of pellet shot from a slingshot in cone space, and the lower end is tight, and simultaneously, the tractive strong by spring shrinks, and pellet shot from a slingshot is in time fallen, and blocks junk timely, successfully salvages shaft-like junk.
Claims (1)
1, a kind of oil field polished rod fishing device, mainly form by fisher main body (1), pellet shot from a slingshot (2), neck bush (3) and shaft-like junk (4), inner chamber in fisher main body (1) is provided with taper surface (6), neck bush (3) is sitting in the bottom of fisher main body (1), pellet shot from a slingshot (2) is installed in bullet groove (7) lining on the neck bush (3), it is characterized in that: be provided with spring (5) in the lower end of described bullet groove (7), pellet shot from a slingshot (2) is connected the lower end of bullet groove by spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201733599U CN201306142Y (en) | 2008-10-22 | 2008-10-22 | Polished rod salvaging device used in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201733599U CN201306142Y (en) | 2008-10-22 | 2008-10-22 | Polished rod salvaging device used in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306142Y true CN201306142Y (en) | 2009-09-09 |
Family
ID=41098609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201733599U Expired - Fee Related CN201306142Y (en) | 2008-10-22 | 2008-10-22 | Polished rod salvaging device used in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306142Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103154423A (en) * | 2010-10-11 | 2013-06-12 | 国民油井华高有限合伙公司 | 3-ring non-extrusion seal assembly and method |
| CN104612617A (en) * | 2015-01-22 | 2015-05-13 | 中交二航局第三工程有限公司 | Broken drill pipe salvage device inside pile foundation hole |
-
2008
- 2008-10-22 CN CNU2008201733599U patent/CN201306142Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103154423A (en) * | 2010-10-11 | 2013-06-12 | 国民油井华高有限合伙公司 | 3-ring non-extrusion seal assembly and method |
| CN103154423B (en) * | 2010-10-11 | 2016-11-16 | 国民油井华高有限合伙公司 | The three nonextruding black box of ring and methods |
| CN104612617A (en) * | 2015-01-22 | 2015-05-13 | 中交二航局第三工程有限公司 | Broken drill pipe salvage device inside pile foundation hole |
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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: 20090909 Termination date: 20091123 |