CN205400647U - A drag for lance for borehole operation - Google Patents
A drag for lance for borehole operation Download PDFInfo
- Publication number
- CN205400647U CN205400647U CN201620206119.9U CN201620206119U CN205400647U CN 205400647 U CN205400647 U CN 205400647U CN 201620206119 U CN201620206119 U CN 201620206119U CN 205400647 U CN205400647 U CN 205400647U
- Authority
- CN
- China
- Prior art keywords
- piston
- bush
- piston bush
- slide bar
- lance
- 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.)
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Links
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of oil field downhole tool, especially, relate to a drag for lance for borehole operation. Including piston bush, piston rod and lower clutch, the piston rod include piston and slide bar, the two fixed connection, piston install in the piston bush, lower clutch cover in the outside of slide bar and through the lower extreme of threaded connection at the piston bush, between piston bush and the piston, all be provided with the sealing washer between slide bar and the lower clutch, piston bush upper end be provided with the oil pipe screwed joint who is used for connecting the working string, what be provided with the inside airtight space with the piston below of intercommunication oil pipe in the lateral wall of piston bush crosses the liquid passageway, the piston bush side is provided with the airtight space of intercommunication piston top and the balancing hole of oil sleeve annulus sky, the bottom of slide bar be provided with and salvage the hook. The utility model discloses a hydraulic pressure principle is through coming driving a piston rod upwards to slide to overlapping intraductal injection water under high pressure for the cable or the wire rope that are hooked are tightly cliied, have effectively solved the problem that breaks off relations.
Description
Technical field
This utility model belongs to oil field well technical field of tools, particularly relates to and a kind of drags for lance for underground work.
Background technology
In underground work process, often to payout under down-hole or steel wire rope, cable or steel wire rope once fracture, just need use to drag for lance and salvage.In conventional art, often adopt the polished rod with lance hook to drag for lance and salvage, owing to there is no cable clip locking structure, easily break off relations in cable lifting process.
Summary of the invention
This utility model provides a kind of and drags for lance for underground work, it is therefore an objective to improve the problem easily broken off relations in cable or steel wire rope salvaging process.
This utility model is solved the technical problem that and is realized by the following technical solutions: this utility model provides and a kind of drags for lance for underground work, including piston bush, piston rod and lower contact, described piston rod includes piston and slide bar, the two fixing connection, piston is arranged in piston bush, described lower contact is enclosed within the outside of slide bar and is threadedly attached in the lower end of piston bush, between piston bush and piston, sealing ring it is provided with between slide bar and lower contact, described piston bush upper end is provided with the oil pipe threaded connector for connecting working string, what be provided with the confined space below connection oil pipe inside and piston in the sidewall of piston bush crosses liquid passage, piston bush side is provided with the balance pipe of the confined space above connection piston and oil jacket annular space, the bottom of described slide bar is provided with recovery hook.
Being provided with triangle notch on the sidewall of the bottom of described lower contact, triangle notch has at least two, and each triangle notch is uniformly distributed along the circumference.Being provided with shear pin between described piston bush and piston, the top of the inner side of piston bush is provided with preventing covering upside down screw thread, and the top of piston is provided with and the jump ring of described preventing covering upside down threaded engagement.
The beneficial effects of the utility model are: this utility model adopts hydraulic principle, by injection water under high pressure in sleeve pipe is driven piston rod upward sliding so that the cable being hooked or steel wire rope are tightly clamped, the problem efficiently solving unhook.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
In figure: 1-recovery hook, 2-triangle notch, 3-lower contact, 4-slide bar, 5-piston, 6-crosses liquid passage, 7-piston bush, 8-oil pipe threaded connector, 9-balance pipe, 10-preventing covering upside down screw thread, 11-jump ring, 12-shear pin.
Embodiment:
This utility model includes piston bush 7, piston rod and lower contact 3, and described piston rod includes piston 5 and slide bar 4, and the two fixing connection, piston 5 is arranged in piston bush 7, and described lower contact 3 is enclosed within the outside of slide bar 4 and is threadedly attached in the lower end of piston bush 7.Being provided with sealing ring between piston bush 7 and piston 5, between slide bar 4 and lower contact 3, described piston bush 7 upper end is provided with the oil pipe threaded connector 8 for connecting working string.Be provided with in the sidewall of piston bush 7 that connection oil pipe is internal and below piston 5 confined space cross liquid passage 6, cross liquid passage 6 and water under high pressure introduced the lower section of piston 5, thus promoting piston 5 to move upward.Piston bush 7 side is provided with the balance pipe 9 of confined space and oil jacket annular space above connection piston 5, and its effect is the pressure balance making piston 5 superjacent air space with oil jacket annular space, it is prevented that vacuum occur above piston 5.The bottom of described slide bar 4 is provided with recovery hook 1.
Being provided with triangle notch 2 on the sidewall of the bottom of described lower contact 3, its effect is for holding cable or steel wire rope, makes cable or steel wire rope stuck in triangle notch 2.Triangle notch 2 has at least two, and each triangle notch 2 is uniformly distributed along the circumference, and such design makes cable or steel wire rope be easier to enter in triangle notch 2.Being provided with shear pin 12 between described piston bush 7 and piston 5, its effect is to insert fish internal offer support force for recovery hook 1.The top of the inner side of piston bush 7 is provided with preventing covering upside down screw thread 10, the top of piston 5 is provided with the jump ring 11 coordinated with described preventing covering upside down screw thread 10, preventing covering upside down screw thread 10 and jump ring coordinate can realize unidirectional locking, it is locked out while making piston rod moves, can not again move down, and then ensure that pressure dump back piston bar invariant position (still for locking state), namely after pressure dump fish without coming off.
This utility model adopts hydraulic principle, by injection water under high pressure in sleeve pipe is driven piston rod upward sliding so that the cable being hooked or steel wire rope are tightly clamped, the problem efficiently solving unhook.
Claims (3)
- null1. one kind for underground work drag for lance，Including piston bush (7)、Piston rod and lower contact (3)，It is characterized in that: described piston rod includes piston (5) and slide bar (4)，The two fixing connection，Piston (5) is arranged in piston bush (7)，Described lower contact (3) is enclosed within the outside of slide bar (4) and is threadedly attached in the lower end of piston bush (7)，Between piston bush (7) and piston (5)、It is provided with sealing ring between slide bar (4) and lower contact (3)，Described piston bush (7) upper end is provided with the oil pipe threaded connector (8) for connecting working string，Be provided with in the sidewall of piston bush (7) that connection oil pipe is internal and piston (5) lower section confined space cross liquid passage (6)，Piston bush (7) side is provided with the balance pipe (9) of connection piston (5) top confined space and oil jacket annular space，The bottom of described slide bar (4) is provided with recovery hook (1).
- 2. according to claim 1 a kind of drag for lance for underground work, it is characterized in that: the sidewall of the bottom of described lower contact (3) is provided with triangle notch (2), triangle notch (2) has at least two, and each triangle notch (2) is uniformly distributed along the circumference.
- 3. according to claim 1 a kind of drag for lance for underground work, it is characterized in that: between described piston bush (7) and piston (5), be provided with shear pin (12), the top of the inner side of piston bush (7) is provided with preventing covering upside down screw thread (10), and the top of piston (5) is provided with the jump ring (11) coordinated with described preventing covering upside down screw thread (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620206119.9U CN205400647U (en) | 2016-03-17 | 2016-03-17 | A drag for lance for borehole operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620206119.9U CN205400647U (en) | 2016-03-17 | 2016-03-17 | A drag for lance for borehole operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400647U true CN205400647U (en) | 2016-07-27 |
Family
ID=56421766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620206119.9U Active CN205400647U (en) | 2016-03-17 | 2016-03-17 | A drag for lance for borehole operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400647U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761519A (en) * | 2016-12-28 | 2017-05-31 | 吉林大学 | Lever pulley trigger-type static pressure fishing device |
| 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 |
| CN108019175A (en) * | 2017-12-08 | 2018-05-11 | 青海煤炭地质勘查院 | A kind of Multifunctional latch jack |
-
2016
- 2016-03-17 CN CN201620206119.9U patent/CN205400647U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761519A (en) * | 2016-12-28 | 2017-05-31 | 吉林大学 | Lever pulley trigger-type static pressure fishing device |
| 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 |
| CN108019175A (en) * | 2017-12-08 | 2018-05-11 | 青海煤炭地质勘查院 | A kind of Multifunctional latch jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170601 Address after: Heilongjiang province Daqing City Honggang District 163000 Qing Nan Industrial Park Patentee after: Daqing Xin Feng Petroleum Technology Co., Ltd. Address before: Heilongjiang Province, Daqing City Ranghulu District 163000 Qing Xin Nan Jie Qing new district 2-6 No. 3 Room 501 Patentee before: Chen You |
|
| TR01 | Transfer of patent right |