CN204212729U - A kind of without box cupling shaft fishing tool - Google Patents
A kind of without box cupling shaft fishing tool Download PDFInfo
- Publication number
- CN204212729U CN204212729U CN201420561796.3U CN201420561796U CN204212729U CN 204212729 U CN204212729 U CN 204212729U CN 201420561796 U CN201420561796 U CN 201420561796U CN 204212729 U CN204212729 U CN 204212729U
- Authority
- CN
- China
- Prior art keywords
- slipway
- designed
- fishing
- slideway
- box cupling
- 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 kind of oilfield downhole operation fishing tool, particularly a kind of without box cupling shaft fishing tool.The top connection lower end of this device connects fishing socket, fishing socket lower end is designed with guide shoe, slipway is connected with by dormant bolt inside fishing socket, the conical surface wide at the top and narrow at the bottom is designed to inside slipway, slideway is designed with inside slipway, the slideway that block teeth are arranged on slipway can move up and down along slideway, and be designed with tooth inside block teeth, the slideway upper and lower side of slipway is designed with block teeth stopping means.The utility model achieves down-hole without the shaft-like junk of box cupling disposable salvaging success, reduces workover treatment cost, and easy to operate, structure is simple, reliability and safety high.Overcome long without the box cupling shaft-like fishing junk cycle under existing well, salvage often, deficiency that fishing success ratio is low.
Description
Technical field:
The utility model relates to a kind of oilfield downhole operation fishing tool, particularly a kind of without box cupling shaft fishing tool.
Background technology:
The salvaging of overhaul in recent years top of fish progressively increases without the well of box cupling sucker rod or coiled tubing, and often to process some shaft-like junks without box cupling type, sucker-rod fishing tools all is at present all be the salvaging that sucker rod that box cupling is intact carries out for top of fish, and oil field does not have special in the fishing tool without box cupling shaft, the fishing operation of a sleeve forming is not had to solve this problem yet, only take to draw, press, milling, dish, the way such as hook implement substep and salvage, exist the salvaging cycle long, salvage often, the problem such as fishing success ratio is low.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of without box cupling shaft fishing tool, the arrangement achieves down-hole without the disposable salvaging success of the shaft-like junk of box cupling, reduces workover treatment cost, easy to operate, structure simply, reliability and safety high.Overcome long without the box cupling shaft-like fishing junk cycle under existing well, salvage often, deficiency that fishing success ratio is low.
Technical solution adopted in the utility model is: a kind of without box cupling shaft fishing tool, comprises top connection and fishing socket; Top connection lower end connects fishing socket, fishing socket lower end is designed with guide shoe, slipway is connected with by dormant bolt inside fishing socket, the conical surface wide at the top and narrow at the bottom is designed to inside slipway, slideway is designed with inside slipway, the slideway that block teeth are arranged on slipway can move up and down along slideway, and be designed with tooth inside block teeth, the slideway upper and lower side of slipway is designed with block teeth stopping means.
The beneficial effects of the utility model are: the utility model achieves down-hole without the shaft-like junk of box cupling disposable salvaging success, reduces workover treatment cost, and easy to operate, structure is simple, reliability and safety high.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As shown in Figure 1, a kind of without box cupling shaft fishing tool, comprise top connection 1 and fishing socket 2; Top connection 1 lower end connects fishing socket 2, and fishing socket 2 lower end is designed with guide shoe 3, is convenient to shaft to introduce fishing socket 2.Slipway 4 is connected with by dormant bolt 6 inside fishing socket 2, the conical surface wide at the top and narrow at the bottom is designed to inside slipway 4, slideway is designed with inside slipway 4, the slideway that block teeth 5 are arranged on slipway 4 can move up and down along slideway, tooth is designed with inside block teeth 5, the slideway upper and lower side of slipway 4 is designed with block teeth stopping means, prevents the improper block teeth 5 that make of fishing operation from falling into well Inner.
After the utility model is gone into the well, after encountering top of fish, rotary tools, introduced by top of fish in guide shoe 3, continue the instrument of transferring, it is up that top of fish pushes away block teeth 5, in up process, shaft blocks by block teeth 5, carries drilling tool then, there is certain tapering inner side due to slipway 4, and has high-strength interior button inside block teeth 5, along with on carry drilling tool, block teeth 5 block shaft tighter and tighter, complete salvaging, simple to operation, ensure that salvaging one-time success rate.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1., without a box cupling shaft fishing tool, comprise top connection (1) and fishing socket (2); It is characterized in that: top connection (1) lower end connects fishing socket (2), fishing socket (2) lower end is designed with guide shoe (3), fishing socket (2) inner side is connected with slipway (4) by dormant bolt (6), slipway (4) inner side is designed to the conical surface wide at the top and narrow at the bottom, slipway (4) inner side is designed with slideway, the slideway that block teeth (5) are arranged on slipway (4) can move up and down along slideway, block teeth (5) inner side is designed with tooth, and the slideway upper and lower side of slipway (4) is designed with block teeth stopping means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561796.3U CN204212729U (en) | 2014-09-28 | 2014-09-28 | A kind of without box cupling shaft fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561796.3U CN204212729U (en) | 2014-09-28 | 2014-09-28 | A kind of without box cupling shaft fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212729U true CN204212729U (en) | 2015-03-18 |
Family
ID=52981410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420561796.3U Expired - Fee Related CN204212729U (en) | 2014-09-28 | 2014-09-28 | A kind of without box cupling shaft fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775017A (en) * | 2012-11-28 | 2014-05-07 | 贵州高峰石油机械股份有限公司 | Fishing method for broken rod and side fishing device used in method |
-
2014
- 2014-09-28 CN CN201420561796.3U patent/CN204212729U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775017A (en) * | 2012-11-28 | 2014-05-07 | 贵州高峰石油机械股份有限公司 | Fishing method for broken rod and side fishing device used in method |
| CN103775017B (en) * | 2012-11-28 | 2016-04-13 | 贵州高峰石油机械股份有限公司 | Device is dragged in a kind of Refloatation method and side used of disconnected bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |