CN2591217Y - Fishing spear for grapping tube shape fallen objects in well - Google Patents
Fishing spear for grapping tube shape fallen objects in well Download PDFInfo
- Publication number
- CN2591217Y CN2591217Y CN 02255768 CN02255768U CN2591217Y CN 2591217 Y CN2591217 Y CN 2591217Y CN 02255768 CN02255768 CN 02255768 CN 02255768 U CN02255768 U CN 02255768U CN 2591217 Y CN2591217 Y CN 2591217Y
- Authority
- CN
- China
- Prior art keywords
- fishing
- well
- underground
- slingshot
- main body
- 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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Abstract
The utility model relates to a fishing tool for underground tubular falling objects, which belongs to the class of underground fishing tools for an oil field in the technical field of the petroleum industry. The utility model is suitable for the fishing of underground tubular falling objects, and still better fishing effects are offered for underground tubular falling objects in a well with a minor diameter. The fishing tool is mainly composed of a main body of the fishing tool, a pellet, and a wrapping sleeve. The fishing tool is tightly locked with an underground falling object in a manner that the pellet has one-way freedom and reverse rising tightening action in a wedge-shaped space, and thereby, the underground falling object is fished out of a well. The fishing tool has the advantages of simple structure and reliable use. The success ratio of one time fishing in well descent is close to 100 percent so that the cost of operation and well workover is reduced.
Description
One, technical field: the utility model belongs to down-hole, the oil field fishing tool of petroleum industry system, is applicable to the salvaging of tubulose trouble of lost tool in hole, especially to the salvaging better effects if of minor diameter tubulose trouble of lost tool in hole.
Two, technical background: in the oilfield downhole operation process,, generally adopt the slip-type fisher for the bigger tubulose trouble of lost tool in hole of caliber.But to minor diameter tubulose trouble of lost tool in hole, often lost efficacy, and be difficult to salvage, the utensil that temporary on the market unmatchful minor diameter tubulose trouble of lost tool in hole is salvaged with the slip-type fisher.
Three, summary of the invention: for making easily with down-hole tubulose junk, especially minor diameter down-hole tubulose fishing junk goes out well, a kind of cylinder type of ad hoc system down-hole tubulose fishing junk device, utilize the mode of pellet shot from a slingshot unidirectional freedom, reverse tensioner in wedge shape space that fisher and trouble of lost tool in hole are locked, thereby salvage the purpose of well.This fisher mainly is made up of fisher main body, pellet shot from a slingshot and jacket.On this fisher main body, be shaped on the bullet groove of upper deep and lower shallow type.Jacket has groove in addition, and groove width is less than billiards diameter.When pellet shot from a slingshot was in bullet groove the top, pellet shot from a slingshot just in time was submerged in the bullet groove.And being in bullet groove bottom the time when pellet shot from a slingshot, the outer female surface diameter of two pellets shot from a slingshot is greater than the trouble of lost tool in hole internal diameter.Fisher main body top is shaped on screw thread, is used to connect rope socket.The lower end is made taper and is drawn tiltedly, so that fisher enters in the junk smoothly.The utility model is simple in structure, uses reliably, and the fishing success ratio of once going into the well reduces the cost of operation well workover greatly near 100%, can in time resume production again.
Four, description of drawings: accompanying drawing is the structural representation of down-hole tubulose fishing junk device, 1-fisher main body; The 2-pellet shot from a slingshot; The 3-jacket.
Five, implementation: pellet shot from a slingshot 2, overcoat jacket 3 are installed in the fisher main body 1.Main body 1 is made for the cylinder type shape, and be shaped on bullet groove, groove width is less than billiards diameter, overall diameters were controlled at the internal diameter less than junk after main body 1 was assembled with jacket 3, when pellet shot from a slingshot was in the bullet groove upper end, pellet shot from a slingshot can enter in the bullet groove, and when pellet shot from a slingshot is in the bullet groove lower end, the outer female surface diameter of two pellets shot from a slingshot is greater than the trouble of lost tool in hole internal diameter, so that fisher enters in the junk smoothly.When the trouble of lost tool in hole inner chamber is transferred and entered to fisher, the frictional force between junk inwall and the pellet shot from a slingshot drove pellet shot from a slingshot and does upwards to roll relatively.And when carrying on the fisher, pellet shot from a slingshot moves downward under frictional force and deadweight effect, and self-locking is carried in the continuation and can be salvaged well to trouble of lost tool in hole with junk inwall tensioner simultaneously.
Claims (1)
1. down-hole tubulose fishing junk device, it is characterized in that installing in the main body (1) the outer jacket of pellet shot from a slingshot (2) (3), main body (1) top is shaped on screw thread, and the lower end is made taper and drawn oblique shape, and is shaped on bullet groove, in order to lay pellet shot from a slingshot, also have groove on the jacket, but groove width is slightly less than billiards diameter, main body (1) is assembled the back diameter less than the junk internal diameter with jacket (3), when pellet shot from a slingshot was in bottom, its outer female surface diameter was greater than the junk internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255768 CN2591217Y (en) | 2002-12-05 | 2002-12-05 | Fishing spear for grapping tube shape fallen objects in well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255768 CN2591217Y (en) | 2002-12-05 | 2002-12-05 | Fishing spear for grapping tube shape fallen objects in well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591217Y true CN2591217Y (en) | 2003-12-10 |
Family
ID=33724189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255768 Expired - Fee Related CN2591217Y (en) | 2002-12-05 | 2002-12-05 | Fishing spear for grapping tube shape fallen objects in well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591217Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696719A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Small-caliber drilling slag salvaging device |
| CN107923231A (en) * | 2015-07-23 | 2018-04-17 | Ihc荷兰Ie有限公司 | For the lifting device from seabed pick-up member |
| CN113323615A (en) * | 2021-07-05 | 2021-08-31 | 济南瑞环设备有限公司 | Pipe class inner wall dead weight rises and tightly salvage ware |
| CN114991695A (en) * | 2022-06-21 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Self-locking drill rod fishing tool |
-
2002
- 2002-12-05 CN CN 02255768 patent/CN2591217Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696719A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Small-caliber drilling slag salvaging device |
| CN103696719B (en) * | 2013-11-12 | 2016-06-08 | 湖北中南勘察基础工程有限公司 | A kind of small diameter hole device for dragging dregs |
| CN107923231A (en) * | 2015-07-23 | 2018-04-17 | Ihc荷兰Ie有限公司 | For the lifting device from seabed pick-up member |
| CN107923231B (en) * | 2015-07-23 | 2020-06-12 | Ihc荷兰Ie有限公司 | Lifting device for picking up a component from the seabed |
| CN113323615A (en) * | 2021-07-05 | 2021-08-31 | 济南瑞环设备有限公司 | Pipe class inner wall dead weight rises and tightly salvage ware |
| CN114991695A (en) * | 2022-06-21 | 2022-09-02 | 中煤科工集团重庆研究院有限公司 | Self-locking drill rod fishing tool |
| CN114991695B (en) * | 2022-06-21 | 2023-11-03 | 中煤科工集团重庆研究院有限公司 | Self-locking type drill rod fishing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |