CN218467580U - Downhole tubular column fishing barrel - Google Patents
Downhole tubular column fishing barrel Download PDFInfo
- Publication number
- CN218467580U CN218467580U CN202222335914.6U CN202222335914U CN218467580U CN 218467580 U CN218467580 U CN 218467580U CN 202222335914 U CN202222335914 U CN 202222335914U CN 218467580 U CN218467580 U CN 218467580U
- Authority
- CN
- China
- Prior art keywords
- salvage
- ring
- fishing
- overshot
- casing
- 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
- 238000003825 pressing Methods 0.000 claims description 6
- 239000003129 oil well Substances 0.000 abstract description 11
- 241000251468 Actinopterygii Species 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 abstract description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 2
- 239000011425 bamboo Substances 0.000 abstract description 2
- 238000007142 ring opening reaction Methods 0.000 abstract 2
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model belongs to the technical field of accident handling in the pit, in particular to a section of thick bamboo is salvaged to tubular column in the pit. The utility model provides a tubular column fishing barrel in pit, leads head including the top connection, fishing barrel casing, the fishing barrel that connect gradually, the top connection middle part be equipped with central runner, the inside cavity of fishing barrel casing, be equipped with a plurality of salvage ring casings, salvage ring casing center be equipped with the salvage annular ring, the inside cavity of fishing barrel leading head is loudspeaker column structure, and the lower part is equipped with the spiral incision. The utility model discloses an at the inside a plurality of salvage ring casings that set up of salvage barrel casing, the fish top of sucker rod, oil-well pump core gets into different salvage ring openings in proper order, drives different salvage ring and rotates, and oval salvage ring opening rotates the back and drops sucker rod, oil-well pump core in to the well and locks automatically, accomplishes and salvages.
Description
Technical Field
The utility model belongs to the technical field of accident handling in the pit, in particular to a section of thick bamboo is salvaged to tubular column in the pit.
Background
In the process of oil field operation, rod-shaped objects such as broken sucker rods, oil pump cores and the like often fall to the bottom of a well, so that underground accidents are caused. If the oil well is heavy, the oil well will be abandoned, and the oil production will be affected. Although the variety of tools for salvaging the rod-shaped falling objects is more at present, the use limitation of each tool is very small, one tool can only salvage the falling objects with a certain specification, the cross section of the rod-shaped object is required to be regular, the bending deformation is small, if the judgment on the falling objects in the well is unclear or the conditions of the bending and irregular cross section of the rod body can also cause salvaging failure, even secondary accidents.
Disclosure of Invention
The utility model aims at providing a downhole string overshot, to above-mentioned problem, the utility model provides a downhole string overshot realizes accurate, the quick salvage to the sucker rod that drops in the pit, oil-well pump core.
The technical scheme of the utility model lies in: the utility model provides a tubular column fishing barrel in pit, leads head including the top connection, fishing barrel casing, the fishing barrel that connect gradually, the top connection middle part be equipped with central runner, the inside cavity of fishing barrel casing, be equipped with a plurality of salvage ring casings, salvage ring casing center be equipped with the salvage annular ring, the inside cavity of fishing barrel leading head is loudspeaker column structure, and the lower part is equipped with the spiral incision.
The upper joint is in threaded connection with the fishing cylinder shell, and the fishing cylinder shell is in threaded connection with the fishing cylinder leading head.
The salvaging annular hole is oval, and slip teeth are arranged on the inner side of the salvaging annular hole.
A pressing sheet is arranged between the upper joint and the fishing barrel shell, and a discharge hole is formed in the center of the pressing sheet.
The technical effects of the utility model lie in: the utility model discloses an inside a plurality of salvage ring casings that set up of salvage barrel casing, the fish top of the sucker rod that drops in the well, oil-well pump core draws the head from a salvage barrel and gets into after the salvage barrel casing, the fish top of sucker rod, oil-well pump core gets into different salvage ring holes in proper order, drives different salvage ring and rotates, and oval salvage ring hole rotates the back and drops automatic locking of sucker rod, oil-well pump core in the well, accomplishes and salvages. The utility model discloses simple structure, convenient to use, but the fishing operation of sucker rod, oil-well pump core that drops in the pit of wide application in workover.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of the structure of the downhole tubular column overshot of the present invention.
Fig. 2 is a schematic cross-sectional view of a fishing ring shell of the fishing barrel of the downhole tubular column of the present invention.
Reference numerals: 1-upper joint; 2-a central flow channel; 3-tabletting; 4-a drainage hole; 5-salvaging the barrel shell; 6-salvaging a ring hole; 7-salvaging the ring shell; 8-slip teeth; 9-guiding head of the fishing cylinder.
Detailed Description
Example 1
As shown in fig. 1, a tubular column overshot in pit, including top connection 1, overshot casing 5, the overshot that connects gradually draw head 9, 1 middle part of top connection be equipped with central runner 2, the inside cavity of overshot casing 5, be equipped with a plurality of salvage ring casing 7, salvage ring casing 7 center be equipped with salvage annular ring 6, the inside cavity of overshot draw head 9 is loudspeaker column structure, and the lower part is equipped with the spiral incision.
Preferably, the upper joint 1 is in threaded connection with the overshot shell 5, and the overshot shell 5 is in threaded connection with the overshot guide head 9.
As shown in fig. 2, the fishing ring hole 6 is preferably oval, and slip teeth 8 are provided inside the fishing ring hole 6.
Preferably, a pressing sheet 3 is arranged between the upper connector 1 and the overshot shell 5, and a discharge hole 4 is formed in the center of the pressing sheet 3.
The utility model discloses a concrete implementation process does:
the utility model is directly connected with the lower end of the oil pipe column through the upper joint 1, and finds the fish top dropping the oil pumping rod and the oil well pump core through the fishing barrel leading head 9; after the fishing top of the sucker rod and the oil pump core which drop in the well is led from the fishing barrel to the fishing barrel casing 5 through the fishing head 9, the fishing top of the sucker rod and the oil pump core sequentially enters different fishing ring holes 6 to drive different fishing ring casings 7 to rotate, and the sucker rod and the oil pump core which drop in the well are automatically locked after the oval fishing ring holes 6 rotate to finish fishing. The utility model discloses simple structure, convenient to use, but the fishing operation of sucker rod, oil-well pump core that drops in the pit of wide application in the workover.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (4)
1. The utility model provides a downhole string overshot which characterized in that: leading (9) including top connection (1), a casing (5), the overshot that connect gradually, top connection (1) middle part be equipped with central runner (2), the inside cavity of overshot casing (5), be equipped with a plurality of salvage ring casing (7), salvage ring casing (7) center be equipped with salvage annular ring (6), the overshot leads the inside cavity of head (9), for loudspeaker column structure, the lower part is equipped with spiral incision.
2. The downhole string overshot of claim 1, further comprising: the fishing rod is characterized in that the upper joint (1) is in threaded connection with the fishing barrel shell (5), and the fishing barrel shell (5) is in threaded connection with the fishing barrel leading head (9).
3. The downhole string overshot of claim 1, further comprising: the fishing ring hole (6) is oval, and slip teeth (8) are arranged on the inner side of the fishing ring hole (6).
4. The downhole string overshot of claim 1, wherein: a pressing piece (3) is arranged between the upper connector (1) and the casing (5) of the overshot, and a discharge hole (4) is formed in the center of the pressing piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222335914.6U CN218467580U (en) | 2022-09-02 | 2022-09-02 | Downhole tubular column fishing barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222335914.6U CN218467580U (en) | 2022-09-02 | 2022-09-02 | Downhole tubular column fishing barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218467580U true CN218467580U (en) | 2023-02-10 |
Family
ID=85139250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222335914.6U Expired - Fee Related CN218467580U (en) | 2022-09-02 | 2022-09-02 | Downhole tubular column fishing barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218467580U (en) |
-
2022
- 2022-09-02 CN CN202222335914.6U patent/CN218467580U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230210 |