CN203430458U - Fishing gear for instruments in casings - Google Patents
Fishing gear for instruments in casings Download PDFInfo
- Publication number
- CN203430458U CN203430458U CN201320454667.XU CN201320454667U CN203430458U CN 203430458 U CN203430458 U CN 203430458U CN 201320454667 U CN201320454667 U CN 201320454667U CN 203430458 U CN203430458 U CN 203430458U
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- CN
- China
- Prior art keywords
- fisher
- claw
- pin
- clamping jaw
- spring
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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 a fishing gear for instruments in casings. The fishing gear at least comprises a fisher body and a fisher guiding shoe connected with the lower end of the fisher body through threads. The fishing gear is characterized in that a fishing head clamping mechanism is also fixedly arranged in the fisher body; the fishing head clamping mechanism consists of a fisher clamping jaw, a clamping jaw pin, a fisher pin and a spring; the fisher clamping jaw is divided into a left half clamping jaw body and a right half clamping jaw body; the bottom part of the inner side of the left half clamping jaw body and the bottom part of the inner side of the right half clamping jaw body are respectively provided with a barb; the middle part of the inner side of each clamping jaw body is provided with a connecting bulge; a pin joint hole is formed in each connecting bulge; the pin joint holes of the left half clamping jaw body and the right half clamping jaw body are in pin joint through the clamping jaw pin; both ends of the clamping jaw pin are fixedly arranged on inner walls of both sides of the fisher body; the spring is also arranged above the pin joint holes of the left half clamping jaw body and the right half clamping jaw body. The fishing gear provided by the utility model can be suitable for slim-hole fishing, and is convenient and simple in operation. Meanwhile, the integral structural layout is reasonable; the outer surface of the fisher body is free of steps, and thus, the collision possibility is reduced, so that a fishing process is smoother, and therefore, the fishing success rate is increased.
Description
Technical field
The utility model relates to drilling engineering field, particularly a kind of interior instrument fishing device of pipe that is applicable to wireless drilling inclinometers.
Background technology
Former wireless drilling inclinometers fishing tool, in drilling process, need tool using to dismantle instrument to fisher, at least need two people, while there is down-hole fault salvaging wireless drilling inclinometers, 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 scratching phenomenon, causes fishing success ratio low, has had a strong impact on downhole safety.
Summary of the invention
The purpose of this utility model 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 utility model solves the technical scheme that its technical problem adopts: instrument fishing device in a kind of pipe, which comprises at least fisher body and be threaded connection the fisher guide shoe in fisher body lower end, it is characterized in that: in fisher body, be also fixed with fishing head clamping mechanism, fishing head clamping mechanism is by fisher claw, claw pin, fisher pin and spring form, 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, in connection bump, have pin joint hole, 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 is also 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 barb highest point apart from the height of claw body from the height of claw body.
Described spring is " V " type spring, and spring middle part cross-under has 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 inner sides.
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 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 beneficial effects of the utility model are: in this pipe, instrument fisher is because its inside has the fisher claw of barb by layout, 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 salvaging process more smooth and easy, thereby increased fishing success ratio.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
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 fishing device 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, in fisher body 2, be also fixed with fishing head clamping mechanism.
Fishing head clamping mechanism is by fisher claw, claw pin 4, fisher pin 5, spring 6 forms, 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, in connection bump 8, have pin joint hole 9, pin joint hole 9 is greater than barb 7 highest points apart from the height of 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 are also 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 inner sides, 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 are connected by crossover sub Yu Shangti mechanism.
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 salvaging process more smooth and easy, thereby increased fishing success ratio.
Claw body 3 external surfaces have striped, and 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:
In wellbore construction operation process, occur down-hole fault, in this pipe, instrument fisher is threaded with crossover sub 7 by top top connection 10, and by crossover sub, 7 Yu Shangti mechanisms connect; After in this pipe, 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, contact with the barb 7 of left and right two lobe claw bodies 3, due to barb 7 ramp-like configuration that is interior receipts, therefore 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; When the mushroom head place of fishing head moves to behind barb 7 tops, spring 6 outwards pushes fisher claw upper end, and fisher claw lower end is tightened 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, makes fisher claw lower end to external expansion, and the gap between two barbs 7 increases, and takes out fishing head.
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 fishing device 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: fisher body is also fixed with fishing head clamping mechanism in (2), fishing head clamping mechanism is by fisher claw, claw pin (4), fisher pin (5) and spring (6) form, 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), in connection bump (8), have pin joint hole (9), 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) is also furnished with spring (6).
2. instrument fishing device in a kind of pipe according to claim 1, 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 fishing device in a kind of pipe according to claim 1, is characterized in that: described pin joint hole (9) is greater than barb (7) highest point apart from the height of claw body (3) apart from the height of claw body (3).
4. instrument fishing device 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) inner sides.
5. instrument fishing device in a kind of pipe according to claim 1, it is characterized in that: about when described spring (6) does not compress, 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 fishing device in a kind of pipe according to claim 1, is characterized in that: described fisher body (2) top has the top connection (10) for being connected with crossover sub.
7. instrument fishing device in a kind of pipe according to claim 1, is characterized in that: the external diameter of described fisher body (2) is 38mm.
8. instrument fishing device in a kind of pipe according to claim 1, is characterized in that: described claw body (3) external surface has striped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454667.XU CN203430458U (en) | 2013-07-29 | 2013-07-29 | Fishing gear for instruments in casings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454667.XU CN203430458U (en) | 2013-07-29 | 2013-07-29 | Fishing gear for instruments in casings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430458U true CN203430458U (en) | 2014-02-12 |
Family
ID=50059503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320454667.XU Expired - Fee Related CN203430458U (en) | 2013-07-29 | 2013-07-29 | Fishing gear for instruments in casings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452513A (en) * | 2013-07-29 | 2013-12-18 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | In-tube instrument fisher |
| CN107255021A (en) * | 2017-07-28 | 2017-10-17 | 中国石油集团西部钻探工程有限公司 | Deliver unlocking device |
-
2013
- 2013-07-29 CN CN201320454667.XU patent/CN203430458U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452513A (en) * | 2013-07-29 | 2013-12-18 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | In-tube instrument fisher |
| CN107255021A (en) * | 2017-07-28 | 2017-10-17 | 中国石油集团西部钻探工程有限公司 | Deliver unlocking device |
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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: 20140212 Termination date: 20190729 |