CN103452513A - In-tube instrument fisher - Google Patents
In-tube instrument fisher Download PDFInfo
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- CN103452513A CN103452513A CN2013103215617A CN201310321561A CN103452513A CN 103452513 A CN103452513 A CN 103452513A CN 2013103215617 A CN2013103215617 A CN 2013103215617A CN 201310321561 A CN201310321561 A CN 201310321561A CN 103452513 A CN103452513 A CN 103452513A
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- fisher
- claw
- pin
- spring
- instrument
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Abstract
The invention relates to an in-tube instrument fisher. The in-tube instrument extractor at least comprises a fisher body and a fisher guide shoe connected to the lower end of the fisher body in a threaded manner, and is characterized in that a fisher head clamping mechanism fixed inside the fisher body is composed of a fisher jaw, a jaw pin, a fisher pin and a spring, the fisher jaw is divided into a left half jaw body and a right half jaw body, the bottom of the inner side of each of the left and right half jaw bodies is provided with a barb, a connecting bulge is arranged on the middle portion of the inner side of each jaw body, pin connecting holes are formed in each connecting bulge, the pin connecting holes of the left and right half jaw bodies are in pin joint through the jaw pin, two ends of the jaw pin are fixed onto the inner wall of two sides of the fisher body, and the spring is further arranged above the pin connecting holes of the left and right half jaw bodies. The in-tube instrument fisher is applicable to slim-hole fishing, convenient and simple to operate, reasonable in integral structure layout, free of steps on the outer surface of the fisher body, less prone to being bumped and clamped, smooth in fishing process, and thereby high in fishing success rate.
Description
Technical field
The present invention relates to the drilling engineering field, particularly a kind of interior instrument fisher of pipe that is applicable to wireless drilling inclinometers.
Technical background
Former wireless drilling inclinometers fishing tool, in drilling process, need tool using to be dismantled instrument to fisher, at least need two people, while down-hole fault salvaging wireless drilling inclinometers occurring, success rate is only 40%, former fishing tool slip ring external diameter is 58mm, and has step.Part drilling tool crossover sub internal diameter is 58mm, and fishing tool slip ring nozzle is not processed into slope and drilling tool synthetism place produces the scratching phenomenon, causes fishing success ratio low, has had a strong impact on downhole safety.
Summary of the invention
The purpose of this invention is to provide a kind of high interior instrument fisher of pipe of safety in utilization, fishing success ratio that ensures wireless drilling inclinometers.
The technical solution adopted for the present invention to solve the technical problems is: instrument fisher in a kind of pipe, which comprises at least the fisher body and be threaded connection the fisher guide shoe in fisher body lower end, it is characterized in that: also be fixed with the fishing head clamping mechanism in the fisher body, the fishing head clamping mechanism is by the fisher claw, the claw pin, fisher pin and spring form, the fisher claw is divided into left and right two lobe claw bodies, left and right two lobe claw bodies are all that inside bottom has barb, claw body middle inside has connection bump, have the pin joint hole on connection bump, the pin joint hole of left and right two lobe claw bodies is by claw pin pin joint, claw pin two ends are fixed on the inwall of fisher body both sides, the top, pin joint hole of two lobe claw bodies also is furnished with spring.
The barb of described left and right two lobe claw bodies is all that top tilts to the inside.
Described pin joint pitch-row is greater than the height of barb highest point apart from the claw body from the height of claw body.
Described spring is " V " type spring, and spring middle part cross-under has the fisher pin, and fisher pin two ends are fixed on the inwall of fisher body both sides, and both ends of the spring is connected to two lobe claw body inboards.
About when described spring does not compress, two barbs do not contact, and this external surface of claw is no more than the external surface of fisher body, and spring-compressed is at utmost the time, and the distance between barb is greater than the external diameter of wireless drilling inclinometers top fishing head.
Described fisher bodies top has the top connection for being connected with crossover sub.
The external diameter of described fisher body is 38mm.
Described this external surface of claw has striped.
The invention has the beneficial effects as follows: in this pipe, the instrument fisher has the fisher claw of barb by layout due to its inside, when guaranteeing to salvage reliability, make this body diameter of fisher can reach 38mm, can be applicable to slim-hole salvages, easy to operate simple, integral structure layout's this external surface of reasonable fisher is without step simultaneously, reduced touch card may, make in the salvaging process more smooth and easy, thereby increased fishing success ratio.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of instrument fisher in this pipe.
In figure: 1, fisher guide shoe; 2, fisher body; 3, claw body; 4, claw pin; 5, fisher pin; 6, spring; 7, barb; 8, connection bump; 9, pin joint hole.
The specific embodiment
As shown in instrument fisher structural representation in this pipe of Fig. 1, which comprises at least fisher body 2 and be threaded connection the fisher guide shoe 1 in fisher body 2 lower ends, also be fixed with the fishing head clamping mechanism in fisher body 2.
The fishing head clamping mechanism is by the fisher claw, claw pin 4, fisher pin 5, spring 6 forms, the fisher claw is divided into left and right two lobe claw bodies 3, left and right two lobe claw bodies 3 are all that inside bottom has barb 7, claw body 3 middle inside have connection bump 8, have pin joint hole 9 on connection bump 8, pin joint hole 9 is greater than the height of barb 7 highest points apart from claw body 3 apart from the height of claw body 3, the pin joint hole 9 of left and right two lobe claw bodies 3 is by claw pin 4 pin joints, claw pin 4 two ends are fixed on the inwall of fisher body 2 both sides, thereby left and right two lobe claw bodies 3 are connected in one after structure and are fixed in fisher body 2.
9 tops, pin joint hole of two lobe claw bodies 3 also are connected with spring 6, spring 6 is " V " type springs, spring 6 middle part cross-under have fisher pin 5, fisher pin 5 two ends are fixed on the inwall of fisher body 2 both sides, spring 6 two ends are connected to two lobe claw body 3 inboards, pushing two lobe claw body 3 upper ends can Compress Spring 6, increases the distance between two barbs 7 of left and right; About when spring 6 does not compress, two barbs 7 do not contact, and claw body 3 external surfaces are no more than the external surface of fisher body 2, when spring 6 is compressed at utmost, distance between barb 7 is greater than wireless drilling inclinometers top fishing head external diameter, guarantees that fishing head can enter and articulate space through barb 7.
Fisher body 2 tops have the top connection 10 for being connected with crossover sub, and top connection 10 has external screw thread, and fisher body 2 is threaded with crossover sub by top connection 10, then by crossover sub with on carry mechanism and be connected.
The external diameter of fisher body 2 is 38mm, and much smaller than drilling tool water hole, and fisher body 2 external surfaces are without step, reduced touch card may, make in the salvaging process more smooth and easy, thereby increased fishing success ratio.
Claw body 3 external surfaces have striped, and the constructability personnel push left and right two lobe claw bodies 3 and take out fishing head.
In this pipe, the concrete salvaging scheme of instrument fisher is:
Occur the down-hole fault in the wellbore construction operation process, the instrument fisher is threaded with crossover sub 7 by top top connection 10 in this pipe, by crossover sub 7 with on carry mechanism and be connected; After in this pipe, the instrument fisher is gone into the well, because the fishing head at wireless drilling inclinometers top is mushroom-shaped structure, therefore after fishing head enters fisher body lower port, with the barb 7 of left and right two lobe claw bodies 3, contact, due to barb 7 ramp-like configuration that is interior receipts, therefore the fishing head extruding makes left and right two barbs 7 to two side shiftings, makes fisher claw lower end to external expansion, based on lever principle, inwardly shrink fisher claw upper end, Compress Spring 6; After the mushroom head place of fishing head moves to barb 7 tops, spring 6 outwards pushes fisher claw upper end, makes fisher claw lower end tighten up, two barbs 7 are connected to edge under the mushroom head of fishing head, realize clamping, then go up portable cable, salvage wireless drilling inclinometers; After wireless drilling inclinometers is pulled out, extruding fisher claw upper end, Compress Spring 6, make fisher claw lower end to external expansion, and the gap between two barbs 7 increases, and takes out fishing head and gets final product.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (8)
1. instrument fisher in a pipe, which comprises at least fisher body (2) and be threaded connection the fisher guide shoe (1) in fisher body (2) lower end, it is characterized in that: the fisher body also is fixed with the fishing head clamping mechanism in (2), the fishing head clamping mechanism is by the fisher claw, claw pin (4), fisher pin (5) and spring (6) form, the fisher claw is divided into left and right two lobe claw bodies (3), left and right two lobe claw bodies (3) are all that inside bottom has barb (7), claw body (3) middle inside has connection bump (8), have pin joint hole (9) on connection bump (8), the pin joint hole (9) of left and right two lobe claw bodies (3) is by claw pin (4) pin joint, claw pin (4) two ends are fixed on the inwall of fisher body (2) both sides, the top, pin joint hole (9) of two lobe claw bodies (3) also is furnished with spring (6).
2. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: the barb (7) of described left and right two lobe claw bodies (3) is all that top tilts to the inside.
3. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: described pin joint hole (9) is greater than the height of barb (7) highest point apart from claw body (3) apart from the height of claw body (3).
4. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: described spring (6) is " V " type spring, spring (6) middle part cross-under has fisher pin (5), fisher pin (5) two ends are fixed on the inwall of fisher body (2) both sides, and spring (6) two ends are connected to two lobe claw body (3) inboards.
5. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: described spring (6) while not compressing about two barbs (7) do not contact, and claw body (3) external surface is no more than the external surface of fisher body (2), when spring (6) is compressed at utmost, the distance between barb (7) is greater than the external diameter of wireless drilling inclinometers top fishing head.
6. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: described fisher body (2) top has the top connection (10) for being connected with crossover sub.
7. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: the external diameter of described fisher body (2) is 38mm.
8. instrument fisher in a kind of pipe according to claim 1, it is characterized in that: described claw body (3) external surface has striped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103215617A CN103452513A (en) | 2013-07-29 | 2013-07-29 | In-tube instrument fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103215617A CN103452513A (en) | 2013-07-29 | 2013-07-29 | In-tube instrument fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103452513A true CN103452513A (en) | 2013-12-18 |
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ID=49735297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103215617A Pending CN103452513A (en) | 2013-07-29 | 2013-07-29 | In-tube instrument fisher |
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| Country | Link |
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| CN (1) | CN103452513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB289636A (en) * | 1927-04-29 | 1928-05-03 | Ralph Irwin Henderson | Improvements relating to fishing tools for use in well-drilling operations |
| US4452478A (en) * | 1980-08-11 | 1984-06-05 | Dulaney Floyd M | Nuclear waste storage process and system |
| US20040195852A1 (en) * | 2001-05-11 | 2004-10-07 | Andrew Beach | Lockable overshot |
| US20090242203A1 (en) * | 2008-03-31 | 2009-10-01 | Pardey Harold M | Toggle overshot |
| WO2009132645A2 (en) * | 2008-04-30 | 2009-11-05 | Universität Bremen | Grappler |
| CN201448079U (en) * | 2009-06-25 | 2010-05-05 | 江苏省无锡探矿机械总厂有限公司 | Fishing device for rope drilling tool |
| CN203430458U (en) * | 2013-07-29 | 2014-02-12 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Fishing gear for instruments in casings |
-
2013
- 2013-07-29 CN CN2013103215617A patent/CN103452513A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB289636A (en) * | 1927-04-29 | 1928-05-03 | Ralph Irwin Henderson | Improvements relating to fishing tools for use in well-drilling operations |
| US4452478A (en) * | 1980-08-11 | 1984-06-05 | Dulaney Floyd M | Nuclear waste storage process and system |
| US20040195852A1 (en) * | 2001-05-11 | 2004-10-07 | Andrew Beach | Lockable overshot |
| US20090242203A1 (en) * | 2008-03-31 | 2009-10-01 | Pardey Harold M | Toggle overshot |
| WO2009132645A2 (en) * | 2008-04-30 | 2009-11-05 | Universität Bremen | Grappler |
| CN201448079U (en) * | 2009-06-25 | 2010-05-05 | 江苏省无锡探矿机械总厂有限公司 | Fishing device for rope drilling tool |
| CN203430458U (en) * | 2013-07-29 | 2014-02-12 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Fishing gear for instruments in casings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863790A (en) * | 2019-11-06 | 2020-03-06 | 大庆油田有限责任公司 | For CO2Special adjusting reset head for mechanical adjustable injection allocation device of separate injection well |
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Application publication date: 20131218 |