CN202266223U - Reversible downhole fallen article fishing barrel - Google Patents
Reversible downhole fallen article fishing barrel Download PDFInfo
- Publication number
- CN202266223U CN202266223U CN 201120339457 CN201120339457U CN202266223U CN 202266223 U CN202266223 U CN 202266223U CN 201120339457 CN201120339457 CN 201120339457 CN 201120339457 U CN201120339457 U CN 201120339457U CN 202266223 U CN202266223 U CN 202266223U
- Authority
- CN
- China
- Prior art keywords
- slips
- fishing
- barrel
- spider
- cylindrical shell
- 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 discloses a reversible downhole fallen article fishing barrel capable of fishing the downhole fallen article during the downhole operation of the petroleum industry, especially fishing the downhole columnar fallen article. The finishing barrel comprises an upper joint, a barrel body and a spider, wherein the upper joint is connected with the barrel body, a position limit pin is arranged on a conical surface in the barrel body, a position limit groove is arranged on a shell of the spider, the spider is mounted in the backset body and the position limit groove of the spider is fit with the position limit pin of the barrel body. The spider vertically slides along the position limit pin of the barrel body but not performs the cycle rotation, thus the operation reliability is ensured. The spider is fit with the position limit pin on the barrel body, thus the barrel can bear a certain torsional moment, the tooth type direction of the spider is reverse to the round screw direction in the upper part of the upper joint therefore the fishing barrel can conveniently realize the flipping and exiting from the fish. The reversible downhole fallen article fishing barrel has features of simple structure, convenient operation, integration of washing the top of fish, fishing, flipping and exiting from the fish and increased success ratio and work efficiency of the fishing operation.
Description
Technical field
The utility model relates to the underground work fishing tool of petroleum industry, and particularly a kind of reversible trouble of lost tool in hole fishing socket is used to salvage trouble of lost tool in hole, especially salvages down-hole column junk.
Background technology
The reversible fishing socket that uses in petroleum industry underground work at present has two kinds of basket slips and spiral slip sockets, and critical piece has top connection, cylindrical shell and basket or spiral slips, thereunder can be connected guide shoe.Basket slips and spiral slips in above-mentioned two kinds of fishing sockets; On the inner headed face of its slips and periphery, all be provided with left-handed slip insert; On the inner headed face of cylindrical shell, also be provided with left-handed slip insert; Fit clearance between slips and the cylindrical shell is bigger, so just can make slips in cylindrical shell, have certain stroke to swell and to dwindle.In the salvaging process, when instrument was met junk or claimed the top of fish of fish, junk was incorporated into slips through guide shoe, and the slips male cone (strobilus masculinus) is thrown off with the cylindrical shell inner conical surface, and slips is compelled distending, in the junk entering slips.On carry drill string, the corresponding flank of tooth has relative displacement in slip insert on the slips male cone (strobilus masculinus) and the cylindrical shell, makes slips shrink card and stings junk, realizes salvaging.Lift still can not carry junk under the power time in the instrument maximum allowable, hit dipper under the available drilling tool self gravitation, positive then tube post, on carry the instrument of withdrawing from.There is following problem in this fishing socket: 1, complex structure is difficult to processing; 2, the cylindrical shell external diameter of above-mentioned fishing socket is big, has limited the scope of application of fishing socket; When 3, needing the back-off operation at the scene, can't realize.
Summary of the invention
The purpose of the utility model provides a kind of reversible trouble of lost tool in hole fishing socket, overcomes above-mentioned defective, makes its reliable operation, improves the success rate of salvaging, and increases work efficiency.
Following technical proposals can reach above-mentioned purpose: a kind of reversible trouble of lost tool in hole fishing socket comprises top connection, cylindrical shell and slips; Top connection is connected with cylindrical shell; The cylindrical shell internal conical surface is provided with spacer pin; The housing of slips is provided with stopper slot, and slips is contained in the cylindrical shell, and the stopper slot of slips cooperates with the spacer pin of cylindrical shell.Slips can be slided up and down along the spacer pin of cylindrical shell, and can not rotate, guarantee the reliability of its work.
The utility model compared with prior art has following useful effect: this apparatus structure is simple, and the stopper slot of slips cooperates with the spacer pin of cylindrical shell, and slips can only be slided up and down along the spacer pin of cylindrical shell; And can not rotate, slips is whole slips, periphery is smooth anodontia; Inner headed face is provided with slip insert; Stopper slot of design had both guaranteed the uniformity that card is stung junk on it, guaranteed to sting tight junk again after the slips bottom can effectively shrink, guarantee the reliability of work.Slips cooperates with the cylindrical shell upper arresting pin, makes instrument can bear certain moment of torsion, and round thread is in the opposite direction in slips tooth form direction and the top connection top, can make tool and realizes back-off, the operation of from fish, withdrawing from easily.The utility model is simple in structure, and is easy to operate, makes flushing top of fish, salvaging, that back-off withdraws from fish is integrated, has improved the success rate and the operating efficiency of fishing, has tangible economic benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to structural representation.
The specific embodiment
Do further detailed description below in conjunction with 1 pair of the utility model of accompanying drawing: referring to accompanying drawing 1 and Fig. 2; A kind of reversible trouble of lost tool in hole fishing socket comprises top connection 1, cylindrical shell 2 and slips 3; Top connection 1 is connected with cylindrical shell 2, and cylindrical shell 2 internal conical surfaces are provided with spacer pin, and the housing of slips 3 is provided with stopper slot; Slips 3 is contained in the cylindrical shell 2, and the stopper slot of slips 3 cooperates with the spacer pin of cylindrical shell 2.Slips 3 can slide up and down along the spacer pin of cylindrical shell 2, and can not rotate, and can connect guide shoe or cover milling head in the bottom of cylindrical shell 2.Slips 3 is whole slips, and outer conical surface is smooth anodontia, and inner headed face is provided with slip insert, and its stopper slot is provided with two at least, with three be preferred version, along circumferentially evenly distributing.Smooth anodontia, the spacer pin on it of the internal conical surface of cylindrical shell 2 is provided with two at least, with three be preferred version, along circumferentially evenly distributing, its quantity equates with the stopper slot of slips 3.Round thread is in the opposite direction in the slip insert tooth form direction of slips 3 and top connection 1 top, opposite with the screw thread of circle in top connection 1 top, and the instrument of being convenient to withdraws from from fish.
The top connection 1 of the utility model is connected the back G.I.H with the bottom of drill string, in the salvaging process, meets the junk top of fish when instrument, junk is incorporated into slips 3 through the guide shoe of cylindrical shell 2 belows.Slips 3 outer conical surface and cylindrical shell 2 internal conical surfaces are thrown off, slips 3 compelled distendings, junk gets in the slips 3, on carry drill string, slips 3 has relative displacement with cylindrical shell 2, makes slips 3 shrink card and stings junk, realizes salvaging.If need withdraw from instrument the time, hit cylindrical shell 2 under the available drilling tool self gravitation, positive then tube post, the screw thread of justifying in the tooth form direction of Yin Kawa 3 and top connection 1 top is opposite, on carry the instrument that can withdraw from.If need back-off, only need the drilling tool direction rotation opposite with the slip insert tooth form, the slip insert of slips 3 is stung darker and darker, and receives the spacer pin effect of cylindrical shell 2, makes instrument can bear certain moment of torsion, opens until fish.
Claims (4)
1. reversible trouble of lost tool in hole fishing socket; Comprise top connection (1), cylindrical shell (2) and slips (3); Top connection (1) is connected with cylindrical shell (2), it is characterized in that cylindrical shell (2) internal conical surface is provided with spacer pin, and the housing of slips (3) is provided with stopper slot; Slips (3) is contained in the cylindrical shell (2), and the stopper slot of slips (3) cooperates with the spacer pin of cylindrical shell (2).
2. a kind of reversible trouble of lost tool in hole fishing socket according to claim 1 is characterized in that said slips (3) is whole slips, and outer conical surface is smooth anodontia, and inner headed face is provided with slip insert, and its stopper slot is provided with two at least, along circumferentially evenly distributing.
3. a kind of reversible trouble of lost tool in hole fishing socket according to claim 1 is characterized in that smooth anodontia, the spacer pin on it of the internal conical surface of said cylindrical shell (2) is provided with two at least, and along circumferentially evenly distributing, its quantity equates with the stopper slot of slips (3).
4. according to claim 1 or 2 or 3 described a kind of reversible trouble of lost tool in hole fishing sockets, it is characterized in that the in the opposite direction of round thread in slip insert tooth form direction and top connection (1) top of said slips (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120339457 CN202266223U (en) | 2011-08-29 | 2011-08-29 | Reversible downhole fallen article fishing barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120339457 CN202266223U (en) | 2011-08-29 | 2011-08-29 | Reversible downhole fallen article fishing barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266223U true CN202266223U (en) | 2012-06-06 |
Family
ID=46157021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120339457 Expired - Fee Related CN202266223U (en) | 2011-08-29 | 2011-08-29 | Reversible downhole fallen article fishing barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266223U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015937A (en) * | 2013-01-09 | 2013-04-03 | 西南石油大学 | Special fishing tool for screw drill |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN112049592A (en) * | 2020-10-20 | 2020-12-08 | 中国石油集团渤海钻探工程有限公司 | Returnable slip type casing tieback make-up connector |
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
-
2011
- 2011-08-29 CN CN 201120339457 patent/CN202266223U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015937A (en) * | 2013-01-09 | 2013-04-03 | 西南石油大学 | Special fishing tool for screw drill |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
| CN112049592A (en) * | 2020-10-20 | 2020-12-08 | 中国石油集团渤海钻探工程有限公司 | Returnable slip type casing tieback make-up connector |
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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: 20120606 Termination date: 20130829 |