CN104775772A - Oil pipe screwing method and device in mechanical well repair operation - Google Patents
Oil pipe screwing method and device in mechanical well repair operation Download PDFInfo
- Publication number
- CN104775772A CN104775772A CN201410013881.0A CN201410013881A CN104775772A CN 104775772 A CN104775772 A CN 104775772A CN 201410013881 A CN201410013881 A CN 201410013881A CN 104775772 A CN104775772 A CN 104775772A
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- CN
- China
- Prior art keywords
- tong
- oil pipe
- main pincers
- pincers
- main
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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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated
Abstract
The invention discloses an oil pipe screwing method and a device in a mechanical well repair operation, wherein the device comprises a main wrench and a back-up wrench; the main wrench is positioned rightly above the back-up wrench, is connected with the back-up wrench as a whole by a longitudinal connecting rod, and is used for clamping and rotating an oil pipe; and the back-up wrench is used for clamping and fixing an oil pipe hoop. The main wrench comprises a main wrench hydraulic cylinder, main wrench levers and main wrench gums; two main wrench levers are arranged at the left and right sides, and are respectively hinged to a main wrench shell on the lower surface through pins arranged in respective centers; the back ends of the left and right main wrench levers are respectively hinged to the two ends of the main wrench hydraulic cylinder, and the front ends of the left and right main wrench levers are respectively hinged to respective main wrench gums; the butted side edges of the two main wrench gums are respectively provided with two rollers; and the rollers are coaxially connected and driven by a hydraulic motor. The device can totally realize the automation of such actions as the upper buckle release of the oil pipe and the wrench retraction after the finishing of the upper buckle release, so that the mechanical degree of the well repair operation is improved, and the labor intensity of workers is reduced.
Description
Technical field
The present invention relates to the workover treatment equipment of petroleum industry, specifically mechanization workover treatment oil pipe twists the method for button and device.
Background technology
During oil-water well workover treatment, often propose or under enter an oil pipe, the tubing thread between needing single oil pipe carries out upper button or shackle operation.In operating type conventional at present, stubborn for oil pipe device (also claiming " hydraulic tongs ") of buckleing is pulled to well head, under the driving of hydraulic pressure by operating worker, the pincers tooth of main pincers and back-up tong ejects from gum, clamp two oil pipes respectively, back-up tong is fixed thereafter, and main pincers rotation realizes shackle on oil pipe.On completing after shackle, often there is the situation of pincers tooth not return, need manually pincers crest to be returned gum, in addition, need the notch alignment of main pincers to be twisted the breach detaining device, thus thrown off from oil pipe by hydraulic tongs in this stubborn button device.Visible, when above-mentioned stubborn button mode and stubborn button device are directly applied to mechanization workover treatment, exist and how to realize pincers tooth self-return and monitor the technical problems such as main pincers gap position.
Summary of the invention
The object of the present invention is to provide mechanization workover treatment oil pipe to twist the method for button and device, can realize completely shackle and upper shackle on oil pipe complete after the automation of moving back the actions such as pincers, thus improve the mechanization degree of workover treatment, reduce labor strength.
In order to reach above-mentioned purpose, present invention employs following technical scheme, buckle device twisted by mechanization workover treatment oil pipe, comprise main pincers, back-up tong, described main clamper is directly over back-up tong, and both link into an integrated entity with longitudinal connecting rod, main pincers clamp oil pipe and rotate, and described back-up tong is used for the tubing coupling that is fixedly clamped
The spring for adjustment change of main pincers and back-up tong position in upper, shackle process is provided with in described connecting rod.
Described main pincers comprise main pincers hydraulic cylinder, main pincers lever, main pincers gum, roller, hydraulic motor, main pincers housing, described main pincers lever arranges two, left and right, and on the pin hinges arranged respectively by respective center main pincers housing below, the rear end of the main pincers lever in two, described left and right is hinged on the two ends of main pincers hydraulic cylinder respectively, the front end hinged main pincers gum separately respectively of the main pincers lever in two, described left and right, the side that described two main pincers gums connect respectively is provided with two rollers, and described roller is coaxially connected driving by hydraulic motor.
Described main pincers housing forward end and main pincers gum avris position are provided with the longitudinal riser for positioning and guiding main pincers gum.
Described back-up tong comprises back-up tong hydraulic cylinder, back-up tong lever, back-up tong gum, pincers tooth, back-up tong housing, described back-up tong lever arranges two, left and right, and on the pin hinges arranged respectively by respective center back-up tong housing below, the rear end of two the back-up tong levers in described left and right is hinged on the two ends of back-up tong hydraulic cylinder respectively, the front end hinged respective back-up tong gum respectively of two the back-up tong levers in described left and right, the side that described two back-up tong gums connect respectively is provided with two pincers teeth.
Described back-up tong housing forward end and back-up tong gum avris position are provided with the longitudinal riser for positioning and guiding back-up tong gum.
In order to reach another object above-mentioned, present invention employs following technical scheme, the method for button twisted by mechanization workover treatment oil pipe, the steps include:
The pincers tooth of back-up tong fixes tubing coupling, the hydraulic motor of main pincers drives roller to rotate and then drives tubing spinning, until tighten with tubing coupling, thus complete the upper of oil pipe and buckle, shackle then only needs the oil pipe that reverses, after upper button or shackle complete, main pincers and back-up tong automatically disengage oil pipe under the drive of hydraulic cylinder.
Described upper button operation is embodied in, and stubborn buckle device is pushed into single oil tube junction, and the main pincers hydraulic cylinder of main pincers stretches out, and moved to oil pipe by the main pincers gum of main pincers lever drives, the riser that main pincers housing is arranged plays positioning and guiding effect to main pincers gum; Link between main pincers gum and main pincers lever, rotate in the scope that can allow at main pincers housing, therefore after roller contacts with oil pipe, main pincers gum can make certain adjustment according to the physical location of oil pipe, ensures that four stressedly between roller and oil pipe comparatively balance; Four roller clamping oil pipes in main pincers pincers tooth, and ensure that the pretightning force between roller and oil pipe neither damages oil pipe by the pressure of the main pincers hydraulic cylinder of adjustment, meet again the requirement of twisting button; In like manner, the back-up tong hydraulic cylinder in back-up tong drives the tubing coupling of back-up tong pincers tooth clamping; Then, fluid motor-driven roller rotate, between roller and oil pipe pretightning force effect under, roller drive oil pipe rotate, realizes the upper of oil pipe and buckle, and shackle operation only needs roller to reverse.
Compared to prior art, the present invention has following beneficial effect:
The present invention is by lever transmission hydraulic cylinder power, promote the gum of main pincers and back-up tong respectively to oil pipe motion until clamping oil pipe, the pincers tooth of back-up tong fixes tubing coupling, the hydraulic motor of main pincers drives roller to rotate and then drives tubing spinning, thus complete the upper shackle of oil pipe, after upper shackle completes, main pincers and back-up tong automatically disengage oil pipe under the drive of hydraulic cylinder.
1, main pincers can depart from oil pipe with gum after stubborn button completes, and do not need the breach aligning main pincers.
2, back-up tong pincers tooth can depart from oil pipe with gum after stubborn button completes; Do not need manually pincers crest to be returned.
3, the mechanized operation of shackle on oil pipe is fully achieved.
Accompanying drawing explanation
Fig. 1 is that buckle device structural representation twisted by mechanization workover treatment oil pipe of the present invention;
Fig. 2 is the structural representation of the main pincers of the present invention;
Fig. 3 is the structural representation of back-up tong of the present invention.
In figure: main pincers 1, connecting rod 2, spring 3, back-up tong 4, main pincers hydraulic cylinder 5, main pincers lever 6, main pincers gum 7, roller 8, hydraulic motor 9, main pincers housing 10, back-up tong hydraulic cylinder 11, back-up tong lever 12, back-up tong gum 13, pincers tooth 14, back-up tong housing 15.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
This oil pipe is twisted buckle device and is comprised main pincers 1, back-up tong 4 and connecting rod 2 and form (see accompanying drawing 1).Wherein, in connecting rod 2, there is spring 3, the change of main pincers and back-up tong position in upper, shackle process can be adjusted.
Main pincers 1 comprise main pincers hydraulic cylinder 5, main pincers lever 6, main pincers gum 7, roller 8, hydraulic motor 9 and main pincers housing 10 and form (see accompanying drawing 2).Main pincers lever 6 is fixed on main pincers housing 10 by pin, and its two ends connect main pincers hydraulic cylinder 5 and main pincers gum 7 respectively by twisted branch, and main pincers gum 7 can be mobile in main pincers housing 10 under the drive of main pincers hydraulic cylinder 5 by lever 6.Roller 8 is arranged on main pincers gum 7 by central axis, and can rotate under the drive of hydraulic motor 9.
Back-up tong 4 comprises back-up tong hydraulic cylinder 11, back-up tong lever 12, back-up tong gum 13, pincers tooth 14 and back-up tong housing 15 and forms (see accompanying drawing 3).Back-up tong lever 12 is fixed on back-up tong housing 15 by pin, its two ends connect back-up tong hydraulic cylinder 11 and back-up tong gum 13 respectively by twisted branch, back-up tong gum 13 can be moved under the drive of back-up tong hydraulic cylinder 11 by lever 12 in back-up tong 15 housing, pincers tooth 14 is arranged on back-up tong gum 13, follows back-up tong gum 13 and moves.
When oil pipe is twisted and buckled, stubborn buckle device is pushed into single oil tube junction, and the main pincers hydraulic cylinder 5 of main pincers 1 stretches out, and drives main pincers gum 7 to move to oil pipe by main pincers lever 6.Main pincers housing 10 plays certain guide effect to main pincers gum 7; That twisted branch is connected between main pincers gum 7 with main pincers lever 6, rotate in the scope that can allow at main pincers housing 10, therefore after roller 8 contacts with oil pipe, main pincers gum 7 can make certain adjustment according to the physical location of oil pipe, ensures stressedly between four rollers 8 and oil pipe comparatively to balance.Four rollers 8 in main pincers pincers tooth 7 clamp oil pipe, and ensure that the pretightning force between roller and oil pipe neither damages oil pipe by the pressure of the main pincers hydraulic cylinder 5 of adjustment, meet again the requirement of twisting button.
In like manner, the back-up tong hydraulic cylinder 11 in back-up tong 4 drives back-up tong to clamp tooth 14 and clamps tubing coupling.Then, hydraulic motor 9 driven roller 8 rotates, between roller 8 and oil pipe pretightning force effect under, roller 8 drives oil pipe to rotate, and completes button, on the contrary above program, complete shackle, totally realize the stubborn of oil pipe and buckle operation.
After stubborn button completes, main pincers hydraulic cylinder 5 and back-up tong hydraulic cylinder 11 reclaim respectively, drive main pincers gum 7 and back-up tong gum 13 to depart from oil pipe, complete upper, the shackle operation of oil pipe.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (8)
1. buckle device twisted by mechanization workover treatment oil pipe, it is characterized in that, comprises main pincers, back-up tong, described main clamper is directly over back-up tong, and both link into an integrated entity with longitudinal connecting rod, described main pincers clamp and rotary work oil pipe, and described back-up tong is used for the tubing coupling that is fixedly clamped.
2. buckle device twisted by mechanization workover treatment oil pipe according to claim 1, it is characterized in that, is provided with the spring for adjustment change of main pincers and back-up tong position in upper, shackle process in described connecting rod.
3. buckle device twisted by mechanization workover treatment oil pipe according to claim 1, it is characterized in that, described main pincers comprise main pincers hydraulic cylinder, main pincers lever, main pincers gum, roller, hydraulic motor, main pincers housing, described main pincers lever arranges two, left and right, and on the pin hinges arranged respectively by respective center main pincers housing below, the rear end of the main pincers lever in two, described left and right is hinged on the two ends of main pincers hydraulic cylinder respectively, the front end hinged main pincers gum separately respectively of the main pincers lever in two, described left and right, the side that described two main pincers gums connect respectively is provided with two rollers, described roller is coaxially connected driving by hydraulic motor.
4. buckle device twisted by mechanization workover treatment oil pipe according to claim 3, it is characterized in that, described main pincers housing forward end and main pincers gum avris position are provided with the longitudinal riser for positioning and guiding main pincers gum.
5. buckle device twisted by mechanization workover treatment oil pipe according to claim 1, it is characterized in that, described back-up tong comprises back-up tong hydraulic cylinder, back-up tong lever, back-up tong gum, pincers tooth, back-up tong housing, described back-up tong lever arranges two, left and right, and on the pin hinges arranged respectively by respective center back-up tong housing below, the rear end of two the back-up tong levers in described left and right is hinged on the two ends of back-up tong hydraulic cylinder respectively, the front end hinged respective back-up tong gum respectively of two the back-up tong levers in described left and right, the side that described two back-up tong gums connect respectively is provided with two pincers teeth.
6. buckle device twisted by mechanization workover treatment oil pipe according to claim 5, it is characterized in that, described back-up tong housing forward end and back-up tong gum avris position are provided with the longitudinal riser for positioning and guiding back-up tong gum.
7. the method for button twisted by mechanization workover treatment oil pipe, the steps include:
The pincers tooth of back-up tong fixes tubing coupling, the hydraulic motor of main pincers drives roller to rotate and then drives tubing spinning, until tighten with tubing coupling, thus complete the upper of oil pipe and buckle, shackle then only needs the oil pipe that reverses, after upper button or shackle complete, main pincers and back-up tong automatically disengage oil pipe under the drive of hydraulic cylinder.
8. the method for button twisted by mechanization workover treatment oil pipe according to claim 7, it is characterized in that, described upper button operation is embodied in, stubborn buckle device is pushed into single oil tube junction, the main pincers hydraulic cylinder of main pincers stretches out, moved to oil pipe by the main pincers gum of main pincers lever drives, the riser that main pincers housing is arranged plays positioning and guiding effect to main pincers gum; Link between main pincers gum and main pincers lever, rotate in the scope that can allow at main pincers housing, therefore after roller contacts with oil pipe, main pincers gum can make certain adjustment according to the physical location of oil pipe, ensures that four stressedly between roller and oil pipe comparatively balance; Four roller clamping oil pipes in main pincers pincers tooth, and ensure that the pretightning force between roller and oil pipe neither damages oil pipe by the pressure of the main pincers hydraulic cylinder of adjustment, meet again the requirement of twisting button; In like manner, the back-up tong hydraulic cylinder in back-up tong drives the tubing coupling of back-up tong pincers tooth clamping; Then, fluid motor-driven roller rotate, between roller and oil pipe pretightning force effect under, roller drive oil pipe rotate, realizes the upper of oil pipe and buckle, and shackle operation only needs roller to reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013881.0A CN104775772A (en) | 2014-01-13 | 2014-01-13 | Oil pipe screwing method and device in mechanical well repair operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013881.0A CN104775772A (en) | 2014-01-13 | 2014-01-13 | Oil pipe screwing method and device in mechanical well repair operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775772A true CN104775772A (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013881.0A Pending CN104775772A (en) | 2014-01-13 | 2014-01-13 | Oil pipe screwing method and device in mechanical well repair operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775772A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956435A (en) * | 2016-10-18 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of coiled tubing release mechanism |
| CN111236865A (en) * | 2020-01-17 | 2020-06-05 | 中国石油大学胜利学院 | Shackle tongs and method capable of realizing automatic screwing-on and unscrewing of sucker rod |
| CN112392424A (en) * | 2019-08-13 | 2021-02-23 | 中国石油化工股份有限公司 | System and method for monitoring make-up and run-in operations of well cementing and completion tool |
| CN112983310A (en) * | 2019-12-13 | 2021-06-18 | 中国石油天然气股份有限公司 | Back-up tong and power tong |
-
2014
- 2014-01-13 CN CN201410013881.0A patent/CN104775772A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956435A (en) * | 2016-10-18 | 2018-04-24 | 中国石油化工股份有限公司 | A kind of coiled tubing release mechanism |
| CN112392424A (en) * | 2019-08-13 | 2021-02-23 | 中国石油化工股份有限公司 | System and method for monitoring make-up and run-in operations of well cementing and completion tool |
| CN112392424B (en) * | 2019-08-13 | 2022-12-06 | 中国石油化工股份有限公司 | System and method for monitoring make-up and run-in operations of well cementing and completion tool |
| CN112983310A (en) * | 2019-12-13 | 2021-06-18 | 中国石油天然气股份有限公司 | Back-up tong and power tong |
| CN111236865A (en) * | 2020-01-17 | 2020-06-05 | 中国石油大学胜利学院 | Shackle tongs and method capable of realizing automatic screwing-on and unscrewing of sucker rod |
| CN111236865B (en) * | 2020-01-17 | 2021-11-02 | 中国石油大学胜利学院 | Shackle tongs and method capable of realizing automatic screwing-on and unscrewing of sucker rod |
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Application publication date: 20150715 |