CN204175222U - The soft falling object fishing tool in a kind of down-hole - Google Patents
The soft falling object fishing tool in a kind of down-hole Download PDFInfo
- Publication number
- CN204175222U CN204175222U CN201420530707.9U CN201420530707U CN204175222U CN 204175222 U CN204175222 U CN 204175222U CN 201420530707 U CN201420530707 U CN 201420530707U CN 204175222 U CN204175222 U CN 204175222U
- Authority
- CN
- China
- Prior art keywords
- salvaging
- cylindrical shell
- helical form
- core pipe
- magnetic block
- 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 the soft falling object fishing tool in a kind of down-hole.Its technical scheme is: the bottom of salvaging cylindrical shell is provided with guide shoe, the top of salvaging cylindrical shell is provided with top connection, the outside of described top connection is connected with the internal diameter salvaging cylindrical shell, the inner side of top connection is connected with the top of core pipe, described installation of core pipe is salvaging the inner chamber of cylindrical shell, the outer wall of described core pipe is installed helical form and salvage body and magnetic block, and be provided with one or more hangnail body on the surface of helical form salvaging body, described magnetic block is arranged on the side that helical form salvages body.Beneficial effect is: have employed helical form and salvage body, soft elasticity junk is salvaged in cylindrical shell at instrument and constantly extrudes, ensure the effect of salvaging; In addition, adding magnetic block can salvage the little junk of iron and steel material quality simultaneously, saves and salvages cost, reduces labour intensity.
Description
Technical field
The utility model relates to a kind of oil exploitation underground work device, particularly the soft falling object fishing tool in a kind of down-hole.
Background technology
In oil field operation, especially often in underground work occur boring mill debris getting, downhole tool soft accessory, the soft thing of the well head reasons such as well that fall cause drifting to be hampered, instrument cannot normally be gone into the well the generation of situation, and when playing lead stamp, impression is fuzzy not obvious, is difficult to judge top of fish situation.In this case conventional fishing tool is adopted to salvage, DeGrain.Cause invalid making a trip, increase labour intensity, improve operating cost.
Chinese patent literature publication number is 2816338, and patent name is " a kind of device for fishing drops underground ", and this instrument comprises top connection, pipe nipple and washing pipe, and washing pipe bottom is that wedge is connected with pipe nipple.Outside washing pipe, be provided with outer tube, arrange through hole in the top of outer tube, bottom or the bottom of washing pipe arrange rotary cutting mechanism.The utility model makes simple compared with existing underground fishing tool, has the advantage that kind is many, success rate is high of salvaging junk.Successfully can salvage the various rubber dropping down onto shaft bottom when oil-water well operation, the small articles such as rope sling, asbestos net.The rotary cutting mechanism of washing pipe not only has the effect of fishing for the junk that it is salvaged, and also has dissection, and junk can be made to enter outer tube smoothly and be taken out of well head.Its Problems existing is: because rotary cutting mechanism has cutting operation, causes soft accessory successfully not salvaged out, poor effect.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of down-hole soft falling object fishing tool, not only soft junk successfully can be salvaged, and can by the fishing junk of the ferrous materials of fritter out by the strong magnet set up.
Its technical scheme is: comprise top connection, core pipe, salvage cylindrical shell, helical form salvages body, guide shoe, magnetic block, hangnail body, the bottom of described salvaging cylindrical shell is provided with guide shoe, the top of salvaging cylindrical shell is provided with top connection, the outside of described top connection is connected with the internal diameter salvaging cylindrical shell, the inner side of top connection is connected with the top of core pipe, described installation of core pipe is salvaging the inner chamber of cylindrical shell, the outer wall of described core pipe is installed helical form and salvage body and magnetic block, and be provided with one or more hangnail body on the surface of helical form salvaging body, described magnetic block is arranged on the side that helical form salvages body.
Above-mentioned magnetic block is string configuration, and the outer wall surface of core pipe is provided with multiple magnetic block.
The beneficial effects of the utility model are: have employed helical form and salvage body, can apply certain the pressure of the drill and rotating speed to the soft junk in down-hole, soft elasticity junk is salvaged in cylindrical shell at instrument and constantly extrudes, ensure the effect of salvaging; Adopt guide shoe to introduce in fishing socket by junk, simple to operate, efficiency is high; The irrealizable function of hook class fishing tool can be realized, save and salvage cost, reduce labour intensity; In addition, add magnetic block can salvage the little junk of iron and steel material quality simultaneously; Compared with existing multiple fishing tool, with strong points, not only fine to the salvaging effect of soft elasticity junk, and can adsorb other little junks of iron and steel material quality simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: top connection 1, core pipe 2, salvaging cylindrical shell 3, helical form salvage body 4, guide shoe 5, magnetic block 6, hangnail body 7.
Detailed description of the invention
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises top connection 1, core pipe 2, salvaging cylindrical shell 3, helical form salvaging body 4, guide shoe 5, magnetic block 6, hangnail body 7, and the bottom of described salvaging cylindrical shell 3 is provided with guide shoe 5, can introduce in fishing tool by soft elasticity junk, top connection 1 and core pipe 2 are connected as a single entity, there is conveyor screw 4 outside of core pipe 2, the interior screw thread of top connection 1 is connected with salvaging drilling rod thread, male thread and the screwed connection of salvaging cylindrical shell 3, described core pipe 2 is arranged on the inner chamber salvaging cylindrical shell 3, the outer wall of described core pipe 2 is installed helical form and salvage body 4 and magnetic block 6, and be provided with one or more hangnail body 7 on the surface of helical form salvaging body 4, soft junk can be made more firmly to be grasped in helical form to be salvaged on body, described magnetic block 6 is arranged on the side that helical form salvages body 4, for the ease of salvaging the little junk of iron and steel material quality.
Wherein, magnetic block 6 is string configuration, and the outer wall surface of core pipe 2 is provided with multiple magnetic block 6, can by the little junk sucking-off of iron and steel material quality; In addition, helical form is salvaged body 4 and is adopted helical blade to be fixed on core pipe 2 outer wall, and the outward flange of helical blade is not provided with blade, does not have cutting function, thus be convenient to, to lower instrument soft accessory, the soft thing of the well head well etc. that falls, not there is cutting function, and salvaged out by being wound around.
During use, the hydrophthalmia of core pipe 2 of the present utility model is through with the hydrophthalmia salvaging drilling rod, can realize well workover liquid-circulating.Salvage drilling rod and carry the utility model down to distance top of fish 5 meters of, circulating flushing cleans top of fish, bore and rotate tubing string slowly, soft junk is introduced into through guide shoe 5 to be salvaged in cylindrical shell 3, rotate and the pressure of the drill effect under, soft junk is constantly pressed into helical form, and to salvage body 4 inner, in helical form salvaging body 4, drag for the soft junk constantly interior compression obtained, achieve the salvaging of the soft junk in down-hole.When instrument is risen to ground, top connection 1 is pulled down from salvaging cylindrical shell 3, core pipe 2, helical form can be salvaged body 4 and dragged for and obtain thing taking-up.
For the salvaging of soft elasticity junk, especially the salvaging of packer rubber, ram is a difficult point, adopts this kind of built-in helical form to salvage the fishing tool of body, effectively can improve the large salvaging efficiency of soft elasticity junk, avoid invalid making a trip, can be cost-saving, reduce labour intensity.
Claims (2)
1. the soft falling object fishing tool in down-hole, it is characterized in that: comprise top connection (1), core pipe (2), salvage cylindrical shell (3), helical form salvages body (4), guide shoe (5), magnetic block (6), hangnail body (7), the bottom of described salvaging cylindrical shell (3) is provided with guide shoe (5), the top of salvaging cylindrical shell (3) is provided with top connection (1), the outside of described top connection (1) is connected with the internal diameter salvaging cylindrical shell (3), the inner side of top connection is connected with the top of core pipe (2), described core pipe (2) is arranged on the inner chamber salvaging cylindrical shell (3), the outer wall of described core pipe (2) is installed helical form and salvage body (4) and magnetic block (6), and be provided with one or more hangnail body (7) on the surface of helical form salvaging body (4), described magnetic block (6) is arranged on the side that helical form salvages body (4).
2. the soft falling object fishing tool in a kind of down-hole according to claim 1, is characterized in that: described magnetic block (6) is string configuration, and the outer wall surface of core pipe (2) is provided with multiple magnetic block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530707.9U CN204175222U (en) | 2014-09-16 | 2014-09-16 | The soft falling object fishing tool in a kind of down-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530707.9U CN204175222U (en) | 2014-09-16 | 2014-09-16 | The soft falling object fishing tool in a kind of down-hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175222U true CN204175222U (en) | 2015-02-25 |
Family
ID=52564039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530707.9U Expired - Fee Related CN204175222U (en) | 2014-09-16 | 2014-09-16 | The soft falling object fishing tool in a kind of down-hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075384A (en) * | 2020-01-03 | 2020-04-28 | 西南石油大学 | Spiral guide type underground steel wire rope fishing device |
| CN112780209A (en) * | 2021-01-06 | 2021-05-11 | 龙正群 | Magnetic fishing device for fishing small-falling objects in petroleum well |
-
2014
- 2014-09-16 CN CN201420530707.9U patent/CN204175222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075384A (en) * | 2020-01-03 | 2020-04-28 | 西南石油大学 | Spiral guide type underground steel wire rope fishing device |
| CN112780209A (en) * | 2021-01-06 | 2021-05-11 | 龙正群 | Magnetic fishing device for fishing small-falling objects in petroleum well |
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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: 20150225 Termination date: 20150916 |
|
| EXPY | Termination of patent right or utility model |