CN2591216Y - Over shot for gripping rod shape falling objects in well - Google Patents
Over shot for gripping rod shape falling objects in well Download PDFInfo
- Publication number
- CN2591216Y CN2591216Y CN 02255769 CN02255769U CN2591216Y CN 2591216 Y CN2591216 Y CN 2591216Y CN 02255769 CN02255769 CN 02255769 CN 02255769 U CN02255769 U CN 02255769U CN 2591216 Y CN2591216 Y CN 2591216Y
- Authority
- CN
- China
- Prior art keywords
- falling objects
- fishing
- slingshot
- pellet
- underground
- 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 stick-shaped falling objects, which belongs to a mechanical product in the system of the petroleum industry. The utility model belongs to the class of underground fishing tools for an oil field. The utility model is especially suitable for the fishing of underground stick-shaped falling objects. The fishing tool which is made into a pellet type structure is mainly composed of a main body of the fishing tool, a pellet, and an inner lining sleeve of the pellet. The fishing tool is tightly locked with an underground falling object through using the structural characteristic that the pellet has one-way freedom and reverse rising tightening action in a wedge-shaped space, and thereby, stick-shaped falling objects or other falling objects with a similar shape can be successfully fished out of a well. The success ratio is close to 100 percent.
Description
One, technical field: the utility model belongs to a kind of engineering goods of petroleum industry system, is down-hole, oil field fishing tool class, is particularly suitable for the salvaging of shaft-like trouble of lost tool in hole.
Two, technical background: at petroleum industry system,, catch owing to be difficult to generally to be used always fisher, and be difficult to it is salvaged well, have to adopt the method for workover treatment to solve in the past for the shaft-like junk in down-hole, the cost height, the time is long.
Three, summary of the invention: at the characteristics that the shaft-like junk in down-hole is difficult to salvage, improve making the shaft-like fishing junk device in a kind of down-hole, also salvage the trouble of lost tool in hole of other analogous shape simultaneously easily.This fisher utilizes the operating principle of roller type one way shaft coupling, improve to make and be the shaft-like fishing junk device in down-hole of cylinder type structure, utilize pellet shot from a slingshot unidirectional freedom in wedge shape space, oppositely the architectural feature of tensioner can be salvaged well to junk smoothly with fisher and trouble of lost tool in hole locking.This fisher mainly is made up of fisher main body and pellet shot from a slingshot and pellet shot from a slingshot neck bush, is shaped on a taper surface at the main body endoporus, and the place is shaped on bullet groove at the pellet shot from a slingshot neck bush, and groove width is less than the pellet shot from a slingshot internal diameter.
The utility model is simple in structure, is easy to processing and fabricating, and is easy to use, and reliable operation, the fishing success ratio of once going into the well greatly reduce the cost that adopts the operation well workover and take place and incur loss through delay the loss that production causes near 100%.
Four, description of drawings: accompanying drawing is the structural representation of the shaft-like fishing junk device in down-hole.
1---fisher main body; The 2---pellet shot from a slingshot; 3---pellet shot from a slingshot neck bush; The shaft-like junk of 4---.
Five, performance: be shaped on pellet shot from a slingshot 2 and pellet shot from a slingshot neck bush 3 in the fisher main body 1.Be shaped on a taper seat in fisher main body 1, pellet shot from a slingshot neck bush 3 places have bullet groove, and groove width is less than pellet shot from a slingshot 2 diameters.When pellet shot from a slingshot 2 is in the top, in pellet shot from a slingshot sinking and the groove.When pellet shot from a slingshot was in the bottom, pellet shot from a slingshot moved inward under the effect of the conical surface, and at this moment, the female surface diameter should be less than being salvaged the rod member diameter in the pellet shot from a slingshot.Transfer when being inserted in rod member when this fisher, pellet shot from a slingshot moves under the effect of frictional force.When on when carrying fisher, pellet shot from a slingshot is under the effect of frictional force and deadweight and move down, and self-locking is carried in the continuation and shaft-like junk 4 or other fishing junk can be gone out well with being salvaged shaft-like junk 4 tensioners with fisher, fishing success ratio is near absolutely.
Claims (1)
1. the shaft-like fishing junk device in down-hole is made up of fisher main body and pellet shot from a slingshot and pellet shot from a slingshot neck bush, it is characterized in that making the cylinder type structure, system one taper seat in the fisher main body (1), and pellet shot from a slingshot neck bush (3) locates to have bullet groove, and groove width is less than pellet shot from a slingshot (2) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255769 CN2591216Y (en) | 2002-12-05 | 2002-12-05 | Over shot for gripping rod shape falling objects in well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255769 CN2591216Y (en) | 2002-12-05 | 2002-12-05 | Over shot for gripping rod shape falling objects in well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591216Y true CN2591216Y (en) | 2003-12-10 |
Family
ID=33724190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255769 Expired - Fee Related CN2591216Y (en) | 2002-12-05 | 2002-12-05 | Over shot for gripping rod shape falling objects in well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591216Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2002
- 2002-12-05 CN CN 02255769 patent/CN2591216Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 |