CN2888060Y - Anti-drop releasing type left hand fishing spear - Google Patents
Anti-drop releasing type left hand fishing spear Download PDFInfo
- Publication number
- CN2888060Y CN2888060Y CN 200620024469 CN200620024469U CN2888060Y CN 2888060 Y CN2888060 Y CN 2888060Y CN 200620024469 CN200620024469 CN 200620024469 CN 200620024469 U CN200620024469 U CN 200620024469U CN 2888060 Y CN2888060 Y CN 2888060Y
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- China
- Prior art keywords
- pole
- center
- fishing
- well
- junk
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- 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 an anti-drop retrievable left hand fishing spear, belonging to the spear technical field relating to fishing the down-hole drunk in the oilfield, which comprises a seeker, a central pole and a top joint. The seeker is connected with the central pole at the lowermost part of the spear; a guiding inclined hole communicated with the central pole is positioned on the seeker; a coat equipped with a fishing tooth assembly is arranged at the under part of the central pole; a collar equipped with a commutation groove comprising a commutation pin is positioned at the top of the central hole; the top joint is connected with the top of the central pole, and an energizing spring is arranged on the central pole between the top joint and the collar. The utility model relates reasonable structured, and can be applied to conventional vertical well as well as directional well and horizontal well, in particular to fishing the lighter junk, and fishing as well as reversing the normal junk. The utility model has strong applicability, wide application range and high one-time success rate of fishing.
Description
Technical field
The utility model relates to a kind of lance that drags for, and specifically a kind ofly is used for petroleum industry oil, gas field oil, gas, well overhaul, when measure is safeguarded, salvages the anti-drop releasing type left hand fishing spear of junk in the well.
Background technology
At present, the reversible left hand fishing spear is widely used in petroleum industry oil, gas field oil, gas, well overhaul, salvages junk in the well when measure is safeguarded.But there is the insufficiency problem in existing reversible left hand fishing spear when being used for the scene.Existing reversible left hand fishing spear is salvaged the back and easily junk is lost in horizontal segment " trip-out " process when when horizontal well is salvaged; When other well is salvaged light junk, salvage the back and in " trip-out " process, also easily junk is lost.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, and provide a kind of common straight well that both had been applicable to, also be applicable to directional well, horizontal well, be specially adapted to salvage light junk, " salvaging ", " back-off " that are used for normal junk, the anti-drop releasing type left hand fishing spear that also has anti-lost function.
Solve the problems of the technologies described above by the following technical solutions: a kind of anti-drop releasing type left hand fishing spear, comprise target seeker, center-pole, top connection, target seeker is connected with center-pole and is positioned at the foot that drags for lance, it is characterized in that this target seeker is provided with the guiding inclined hole that is communicated with center-pole, the bottom of center-pole is with overcoat, salvage the tooth assembly and be positioned at outer putting, the top of center-pole is with box cupling, and box cupling is provided with the commutation groove, and the commutation bearing pin is positioned at the commutation groove; Top connection is connected with the upper end of center-pole, is with reinforcement spring on the center-pole between top connection and the box cupling.
Owing to adopted technique scheme, compared to existing technology, the utility model has been set up the oblique nozzle of guiding at targeting part, when introducing " top of fish ", on the basis of performance guide head guide effect, rely on the waterpower centralizing function of the oblique nozzle of guiding, increased the reliability of introducing " top of fish ".
Center-pole, salvaging tooth assembly, reinforcement spring, top connection reasonable combination; prevent to salvage the improper retraction of tooth assembly; junk inner chamber and the frictional force of salvaging tooth have been increased; when being implemented in the horizontal well salvaging; salvage and in " trip-out " process, prevent the phenomenon that junk is lost after salvage the back in horizontal segment " trip-outs " process and when other well is salvaged light junk, improved the salvaging effect.The utility model both had been applicable to common straight well, also was applicable to directional well, horizontal well, was specially adapted to salvage light junk, was used for " salvaging ", " back-off " of normal junk, also had anti-lost function.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing 1, this drags for lance and comprises five parts, targeting part, salvaging, back-off part, anti-lost part and connector part.
Targeting part is made up of the target seeker 1 and the oblique nozzle 2 that leads, and target seeker 1 is connected with center-pole 5, is positioned at the foot that drags for lance integral body, and target seeker 1 is provided with the guiding inclined hole that is communicated with center-pole 5, with its oblique nozzle 2 that is referred to as to lead.Salvage, above back-off partly is positioned at targeting part, by back-off force transfer key 3, salvage tooth 4, center-pole 5, overcoat 10 is formed, center-pole 5 is stepped stem of up/down perforation.Overcoat 10 is enclosed within the outside of center-pole 5, salvages bottom one end that tooth 4 is arranged on overcoat 10, and back-off force transfer key 3 is arranged on center-pole 5 bottoms.Withdraw from the top that part is positioned at salvaging, back-off part, be made up of box cupling 11, commutation groove 6, commutation pin 7, box cupling 11 is enclosed within the top of center-pole 5, has commutation groove 6 on the box cupling 11, commutation pin 7 is positioned at commutation groove 6, makes by rotation commutation pin 7 and drags for the lance rotation direction.Anti-lost part is positioned at center-pole 5 topmost, and by reinforcement spring 8, top connection 9 is formed.Top connection 9 one ends are connected with center-pole 5, and the other end is connected with fishing string.Be with reinforcement spring 8 on the center-pole 5 between top connection 9 and the box cupling 11.
The structure of anti-lost part of the present utility model is improved on the basis of existing technology: the center-pole 5 that extended is 0.6 meter.The salvaging tooth assembly of being made up of back-off force transfer key 3 and salvaging tooth 4 improves on the basis of existing technology, forms an integral body.Center-pole 5, salvaging tooth assembly, reinforcement spring 8, top connection 9 reasonable combination; prevent to salvage the improper retraction of tooth assembly; junk inner chamber and the frictional force of salvaging tooth 4 have been increased; when being implemented in the horizontal well salvaging; salvage the back in horizontal segment " trip-outs " process and when other well is salvaged gently junk; salvage the back and in " trip-out " process, prevent the phenomenon that junk is lost, improved the salvaging effect.
The course of work of the present utility model:
Connect top connection 9 with drilling rod, dragging for the lance G.I.H.When near " top of fish ", tubing string is continued slowly to transfer in turn on pump circulation limit, limit, rely on the waterpower guiding double action of the mechanical guide of target seeker 1 and the oblique nozzle 2 that leads, drag for lance and introduce the junk inner chamber, target seeker 1, directional nozzle 2, back-off force transfer key 3, center-pole 5 enter " top of fish ".Because salvage tooth 4 when center-pole 5 cone bottoms, size is slightly larger than the junk internal diameter, at this moment, it is slack to salvage tooth 4, drags for the lance remainder and continues descendingly, salvages tooth 4 and leaves center-pole 5 cone bottoms.Have elasticity owing to salvage tooth 4, continue to transfer drilling rod, salvage tooth 4 reduced diameter, salvage tooth 4 and drag for the lance bottom and enter " top of fish " simultaneously.Continue to transfer to put in place and carry on the back, it is motionless with junk inner chamber frictionally to salvage tooth 4, and center-pole 5 cones are up, strut to salvage tooth 4 wedging junk inner chambers, propose the salvaging that can realize junk in the continuation.
" meet card " when junk, can not normally pull out, when needing back-off, the counter-rotating drill string imposes anti-torsion, and torsion is passed to by back-off force transfer key 3 and salvaged tooth 4, and bottom junk joint is unclamped, and can realize " back-off " operation.
Reinforcement spring 8 prevents to salvage tooth 4 improper retractions; junk inner chamber and the frictional force of salvaging tooth 4 have been increased simultaneously; make salvage be maintained fixed behind the tooth 4 wedging junk inner chambers firm; when being implemented in the horizontal well salvaging; salvage the back in horizontal segment " trip-outs " process and when other well is salvaged light junk, in " trip-out " process, prevent the phenomenon that junk is lost after salvaging.
" meet card " when junk, bottom junk joint is tight etc., and " back-off " can not be opened, and need withdraw from when dragging for lance, hits tubing string down, makes and salvages the cone that tooth 4 leaves center-pole 5.Junk this moment " top of fish " withstands salvages tooth assembly 4, descending compression reinforcement springs 8 such as top connection 9, center-pole 5, target seeker 1, commutation pin 7 comes downwards to commutation groove 6 bottoms, rotate tubing string again, commutation pin 7 enters the translot of commutation groove 6, the upper lifting pipe post, the whole lance that drags for can withdraw from the junk inner chamber, realizes exit function.
The utility model promptly drops into on-the-spot the use after design processing in 2004, be applied to directional well, horizontal well repeatedly, all reaches once success of salvaging, success rate 100%.Explanation thus, the utility model has reached purpose of design.
Claims (1)
1, a kind of anti-drop releasing type left hand fishing spear, comprise target seeker, center-pole, top connection, target seeker is connected with center-pole and is positioned at the foot that drags for lance, it is characterized in that this target seeker is provided with the guiding inclined hole that is communicated with center-pole, the bottom of center-pole is with overcoat, salvage the tooth assembly and be positioned at outer putting, the top of center-pole is with box cupling, and box cupling is provided with the commutation groove, and the commutation bearing pin is positioned at the commutation groove; Top connection is connected with the upper end of center-pole, is with reinforcement spring on the center-pole between top connection and the box cupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024469 CN2888060Y (en) | 2006-05-19 | 2006-05-19 | Anti-drop releasing type left hand fishing spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024469 CN2888060Y (en) | 2006-05-19 | 2006-05-19 | Anti-drop releasing type left hand fishing spear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888060Y true CN2888060Y (en) | 2007-04-11 |
Family
ID=38046634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620024469 Expired - Fee Related CN2888060Y (en) | 2006-05-19 | 2006-05-19 | Anti-drop releasing type left hand fishing spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888060Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046877A (en) * | 2011-10-15 | 2013-04-17 | 王晓强 | Anti-dropping mechanism of quick joint |
| CN103711439A (en) * | 2013-12-10 | 2014-04-09 | 沙玉琢 | Quick coupler capable of preventing separation |
| CN104453766A (en) * | 2014-10-23 | 2015-03-25 | 北京海蓝科技开发有限责任公司 | Petroleum instrument salvage system and salvage head |
| CN105863544A (en) * | 2016-05-09 | 2016-08-17 | 西南石油大学 | Slip type hydraulic control inner fishing tool |
-
2006
- 2006-05-19 CN CN 200620024469 patent/CN2888060Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046877A (en) * | 2011-10-15 | 2013-04-17 | 王晓强 | Anti-dropping mechanism of quick joint |
| CN103711439A (en) * | 2013-12-10 | 2014-04-09 | 沙玉琢 | Quick coupler capable of preventing separation |
| CN104453766A (en) * | 2014-10-23 | 2015-03-25 | 北京海蓝科技开发有限责任公司 | Petroleum instrument salvage system and salvage head |
| CN105863544A (en) * | 2016-05-09 | 2016-08-17 | 西南石油大学 | Slip type hydraulic control inner fishing tool |
| CN105863544B (en) * | 2016-05-09 | 2018-03-27 | 西南石油大学 | Fishing tool in a kind of slip-type hydraulic control |
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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: 20070411 Termination date: 20150519 |
|
| EXPY | Termination of patent right or utility model |