CN203394405U - Fishing guide shoe for well repair - Google Patents
Fishing guide shoe for well repair Download PDFInfo
- Publication number
- CN203394405U CN203394405U CN201320416147.XU CN201320416147U CN203394405U CN 203394405 U CN203394405 U CN 203394405U CN 201320416147 U CN201320416147 U CN 201320416147U CN 203394405 U CN203394405 U CN 203394405U
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- CN
- China
- Prior art keywords
- fishing
- guide shoe
- barrel
- cylindrical shell
- well repair
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a fishing guide shoe for well repair, and belongs to the technical field of well repair in oilfields. A barrel is a circular tube. A screw thread connected with an upper joint is arranged at the upper end of the barrel, and a spiral opening is formed in the lower end of the barrel. The barrel is in threaded connection with a middle thread of the upper joint. The lower part of the upper joint is connected with a fishing tool through a drill rod thread which is arranged on the upper part of the upper joint. Two staggered rows of trapezoidal open windows are formed in the middle part of the barrel, and the open windows have upper widths of 40mm, lower widths of 70mm and lengths of 70mm. The fishing guide shoe is simple in structure and convenient to connect, and has the characteristics of low cost and reusability; the shortcoming of incapability of restoration after a guide shoe with a large external diameter is welded on a conventional tool with a small diameter is overcome, and the shortcomings of increase of the cost and prolonging of a construction period due to the machining of a guide shoe with a large diameter are also overcome; the prolonged barrel of the guide shoe for well repair can be provided with the open windows under the conditions of a bent sucker rod and tubing scrap of a shaft, so that the fishing range of the fishing tool is widened.
Description
Technical field
The utility model relates to a kind of well workover fishing guide, belongs to oil well technical field.
Background technology
In oilfield downhole operation construction, because sand card, sand bury, the salvaging well that causes of the reason such as disconnected de-, the rod parting of tube corrosion is more.Adopt salvaged more in sleeve pipe at present, at present domestic fishing tool be take and salvaged as main in 51/2 〞 sleeve pipe, while salvaging, need to again process large diameter instrument or install guide shoe additional for setting right the large tilted fish of sleeve pipe in 7 〞, 95/8 〞 sleeve pipe, enter fishing tool inner chamber or fishing tool and enter fish inner chamber and salvage.Adopt in this way and deal with problems, complex procedures, operating cost is high.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of well workover fishing guide, can utilize the small diameter tools fish of setting right in large sleeve pipe to salvage.Have the advantages that processing cost is low, can repeatedly use, former tool construction is not exerted an influence.
A fishing guide, cylindrical shell is pipe, and there is the screw thread being connected with top connection cylindrical shell upper end, and there is spiral shaped openings cylindrical shell lower end, and cylindrical shell is connected with top connection middle part screw thread by screw thread; Top connection bottom is connected with fishing tool by drill rod thread; Top connection top is drill rod thread; Window in the centre of cylindrical shell, window for stagger two row upper wide be 40mm, lower wide be 70mm, what length was 70mm is trapezoidal.
The utility model has the advantages that can meet in large sleeve pipe uses minor diameter fishing tool to salvage the needs of junk; Simple in structure, easy to connect, there is cost low, the feature of energy Reusability; Solved the defect that original minor diameter fishing tool is salvaged at large sleeve pipe, tool construction performance has not been impacted; Avoided originally in small diameter tools, welding after large external diameter guide shoe, cannot recover defect and the processing major diameter guide shoe of former state, increased cost and delay the job execution cycle; Well workover can be processed and window with the lengthening cylindrical shell of guide shoe in the situation that pit shaft has bent rod, the residual skin of oil pipe, increases the salvaging scope of fishing tool.Make up the defect of original fishing tool; This well workover can foundation operation field with guide shoe salvaging situation, change at any time different inside and outside fishing combined tools, improve greatly the operating efficiency of operation field, reduce and on-the-spotly wait the instrument time.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of well workover fishing guide, cylindrical shell 2 is pipe, there is the screw thread being connected with top connection cylindrical shell 2 upper ends, cylindrical shell 2 lower end spiral shaped openings, cylindrical shell 2 is connected with top connection 1 middle part screw thread by screw thread; Top connection 1 bottom is connected with fishing tool by drill rod thread; Top connection 1 top is drill rod thread; Window in the centre of cylindrical shell 2, window for stagger two row upper wide be 40mm, lower wide be 70mm, what length was 70mm is trapezoidal.
Summary well workover fishing guide use procedure.Consult Fig. 1.In large sleeve pipe well workover salvaging process, when fishing tool external diameter less.And the same external diameter of down-hole fish hour, while utilizing fishing tool to salvage because shell clearance is excessive, can cause fishing tool cannot enter fish inner chamber or be inserted in fish and the annular space of sleeve pipe, cannot realize salvaging object, after need to installing guide shoe additional down-hole fish being set right, salvage, this well workover guide shoe top connection 1 top jointed rod, bottom connects fishing tool, middle part screw thread is connected with cylindrical shell 2, spirality is processed into according to the rotation direction of right-hand thread or left-hand thread drilling tool in cylindrical shell bottom, behind Xia Dao precalculated position, rotating drilling tool sets right fish in pit shaft by the spiral shaped openings of cylindrical shell bottom, by the fishing tool being connected in top connection 1, trouble of lost tool in hole is salvaged out.At pit shaft, there is crooked sucker rod, during the junks such as the residual skin of oil pipe, can small falling object be stuck at cylindrical shell uplifting window on windowing and take ground out of.
Window as upper wide 40mm, lower wide 70mm, trapezoidal two row's windows that length is 70mm, amount to 6.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.
Claims (1)
1. a well workover fishing guide, is characterized in that cylindrical shell is pipe, and there is the screw thread being connected with top connection cylindrical shell upper end, and there is spiral shaped openings cylindrical shell lower end, and cylindrical shell is connected with top connection middle part screw thread by screw thread; Top connection bottom is connected with fishing tool by drill rod thread; Top connection top is drill rod thread; Window in the centre of cylindrical shell, window for stagger two row upper wide be 40mm, lower wide be 70mm, what length was 70mm is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416147.XU CN203394405U (en) | 2013-07-12 | 2013-07-12 | Fishing guide shoe for well repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416147.XU CN203394405U (en) | 2013-07-12 | 2013-07-12 | Fishing guide shoe for well repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394405U true CN203394405U (en) | 2014-01-15 |
Family
ID=49905941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416147.XU Expired - Fee Related CN203394405U (en) | 2013-07-12 | 2013-07-12 | Fishing guide shoe for well repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN105041254A (en) * | 2015-06-25 | 2015-11-11 | 山西宏厦第一建设有限责任公司 | Method for fishing broken rods of kilometer directional drilling machines |
-
2013
- 2013-07-12 CN CN201320416147.XU patent/CN203394405U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821473A (en) * | 2014-03-03 | 2014-05-28 | 中煤特殊凿井有限责任公司 | Hole bottom falling object fisher in drilling |
| CN103821473B (en) * | 2014-03-03 | 2017-09-26 | 中煤特殊凿井有限责任公司 | A kind of drilling hole bottom litter latch jack |
| CN105041254A (en) * | 2015-06-25 | 2015-11-11 | 山西宏厦第一建设有限责任公司 | Method for fishing broken rods of kilometer directional drilling machines |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210712 |