CN204386511U - A kind of vertical oil pipe anti-jack slips - Google Patents
A kind of vertical oil pipe anti-jack slips Download PDFInfo
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- CN204386511U CN204386511U CN201420673451.7U CN201420673451U CN204386511U CN 204386511 U CN204386511 U CN 204386511U CN 201420673451 U CN201420673451 U CN 201420673451U CN 204386511 U CN204386511 U CN 204386511U
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Abstract
A kind of vertical oil pipe anti-jack slips, prevent the tubing clamp clamping tool that oil pipe is altered under being mainly used in oil well during with pressure flowline operation, be made up of vertical slip spider (1), slips body (2), fluid cylinder (3), supporting disk (4), connecting rod piece (5), upper pin (6), lower bearing pin (7), extension spring (8) etc.The utility model is that monolithic hoisting structure is fixedly connected on snubbing serving equipment, power end operation is completed by driller one people, the slip insert slips body of wedge being provided with different size effectively can block oil pipe and block tighter and tighter, tubing string can be prevented to be ejected by strata pressure, and power placed in the middle is large, vertically to clamp or to unclamp the strength of tubing string large, reliable operation, can ensure, lower tubular column operation personal safety and device security, guarantee construction operation carries out smoothly.
Description
Technical field
The present invention relates to a kind of oil pipe and vertically clamp instrument, a kind of vertical oil pipe anti-jack slips, the fixed slip spider of dependence of particularly a kind of Remote Hydraulic operation and the vertical oil pipe anti-jack slips preventing that when oil Operating Pressure oil pipe is altered of vertical effect fluid cylinder driving.
Background technology
Need OIH pipe to take out one by one during petroleum well workover operation, strata pressure is very large, and when the weight remaining tubing string in well is less than strata pressure, tubing string automatically can rise under the promotion of strata pressure, brings to flowline operation a lot of difficult and dangerous.The way that most workover treatment adopted in the past first discharges strata pressure before well workover, and then carried out flowline operation, but release strata pressure brings very large infringement can to production fluid stratum, affects the Liquid output of oil well.When the operation of oil well lower oil tube, load-bearing slips generally also can be adopted to clamp oil pipe and hang and hold tubing weight.But this load-bearing slips can only prevent oil pipe from falling, when well pulling job with pressure, oil pipe may have when moving upward trend, and existing load-bearing slips cannot use.
For above problem, Chinese patent: automatic tightening type anti-pushing-up slips (CN200520000276.6) adopt a kind of particular design by housing, slip insert, fluid cylinder, the structure such as transmission lever and driving lever of up-small and down-big bellmouth.Utilize lever principle to stir slip insert folding by two fluid cylinders to clamp or release oil pipe, by coordinating of slip insert and bellmouth, make the oil pipe on top block tighter and tighter, tubing string can be prevented to be ejected by strata pressure, improve the person and the device security of lift pipe string operation.But, it is less that the slip insert of this dependence lever principle effect unclamps strength, cannot automatically open when oil pipe is unclamped in operation, need to coordinate and first load-bearing slips is opened, oil pipe is clamped with load-bearing slips again after repeatedly loosening fluid cylinder, operational sequence is complicated especially, easily maloperation occurs, and there is larger potential safety hazard.And for example Chinese patent: anti-jack slips CN201420041436 discloses a kind of anti-jack slips, comprise housing, connector, argue for the sake of arguing and hand lever composition, after optimization, this interlock of arguing for the sake of arguing has a cylinder.Be equally utilize lever principle to prize the connector be built in housing moves up and down, clamped by the slip insert on connector or unclamp oil pipe, automaticity is low, and power placed in the middle is little, unclamp oil pipe strength large not, and above two patents are lever principles due to what adopt, cause the bulky of anti-jack slips, install, it is very inconvenient to safeguard.Separately there is Chinese patent: flashboard type two-way self-tightening sealing slips (CN201320238790.8) adopts hydraulic cylinder and hydraulic control system drive the two-way clamping of slip insert or unclamp oil pipe, be mainly oilfield oil well snubbing serving coordinative composition of equipments, this slips has effect of load-bearing slips and anti-jack slips simultaneously, but because the restriction of volume compact bulk makes clamping force limited, heavily loaded anti-top or weight-bearing function can not be applicable to, when slips unclamps oil pipe, inherent space constraints cannot pass through special tool, and need when changing slip insert to dismantle parts, maintenance operation is cumbersome, most of workover treatment cannot be met and play the anti-top of oil pipe and the needs by special tool.
Summary of the invention
Patent of the present invention relates to oil field development field, it is a kind of Vertical Oil pipe clamp instrument preventing that oil pipe is altered of hydraulic control, particularly in the underground work situation with pressure of a kind of oil field, when removing oil, well inner oil tube, prevent down-hole formation pressure from ejecting the special tool of tubing string.Be made up of slip spider, slips body, fluid cylinder, connecting rod piece, extension spring etc.Slips body moves upward along slip spider inner conical surface under fluid cylinder directly vertically acts on, automatic clamping oil pipe.Patent of the present invention is in the situation with pressure of down-hole, remove oil, well tubing is custom-designed, there is clamping oil pipe and the function preventing tubing string to be ejected, can ensure, when unclamping oil pipe, there is enough large opening force simultaneously, slips body can fully open to surrounding and abdicate passage, facilitates the rountrip of oil pipe and special tool.
The object of patent of the present invention realizes a kind of vertical oil pipe anti-jack slips having integrally-built slip spider and vertical up-or-down movement fluid cylinder and exert pressure, the motive force of three fluid cylinders can be made full use of, vertical effect directly promotes three conical slips body clampings or unclamps oil pipe up and down, large to the power placed in the middle of oil pipe, and open great efforts, open space large, most special tool can be made to pass through in the middle of slips, operation is more prone to, without the need to first opening load-bearing slips when unclamping oil pipe in a particular embodiment, but direct control Long-distance Control hydraulic valve is opened or unclamps oil pipe, simple to operate, safe and reliable, ensure personal safety and the device security of lift pipe string operation, ensure that construction operation substantially increases the operating efficiency that Operating Pressure plays oil pipe while carrying out smoothly.
The present invention is primarily of compositions such as vertical slip spider (1), slips body (2), fluid cylinder (3), supporting disk (4), connecting rod piece (5), upper pin (6), lower bearing pin (7), extension springs (8).It is characterized in that: vertical slip spider (1) is fixed on snubbing serving equipment top rail for disc type overall structure, slips body (2) and slip spider (1) also can be slided up and down relatively by measure-alike circular arc taper-face contact, taper seat is lower large upper minor structure, the slips body of wedge is provided with the slip insert of different size, block tighter and tighter to tubing string when moving upward, fluid cylinder (3) is fixed on slip spider (1) and goes up and moved up and down by hydraulic switching valve Long-distance Control, the piston rod of fluid cylinder (3) is fixed on supporting disk (4), lower bearing pin (7) is connected in slips body (2) and goes up and pass through connecting rod piece (5) and be connected with the upper pin be fixed on supporting disk (4), extension spring (8) is fixed on supporting disk (4) and lower bearing pin (7).
Beneficial effect of the present invention is: a kind of vertical oil pipe anti-jack slips not only can support the use with load-bearing slips and prevent from oil pipe is altered, and reliable hydraulic card clamping force can be applied to petroleum pipe column, when ensureing clamping or unclamp petroleum pipe column, action is more steady, tubing string can be prevented to be ejected by strata pressure during clamping tubing string, and power placed in the middle is large, vertical clamping or to unclamp tubing string be that hydraulic action is large, when unclamping tubing string, slips physical efficiency is fully opened to surrounding, ensure it is that down-hole special tool passes through smoothly mostly, this vertical oil pipe anti-jack slips reliable operation, easy to operate, can ensure, lower tubular column operation personal safety and device security.
Accompanying drawing explanation
Accompanying drawing 1 is patent generalized section of the present invention, have expressed overall structure when vertical oil pipe anti-jack slips unclamps tubing string.
Detailed description of the invention
The present invention will be further described in detail for connection with figures below.
A kind of vertical oil pipe anti-jack slips, prevent a kind of oil pipe hydraulic pressure clamping instrument that oil pipe is altered under being mainly used for oil well during with pressure flowline operation, be made up of vertical slip spider (1), slips body (2), fluid cylinder (3), supporting disk (4), connecting rod piece (5), upper pin (6), lower bearing pin (7), extension spring (8) etc.Slip spider (1) is disc type overall structure, slips body (2) and slip spider (1) also can be slided up and down relatively by measure-alike circular arc taper-face contact, large little under taper seat, fluid cylinder (3) is fixed on slip spider (1) and goes up and moved up and down by hydraulic switching valve Long-distance Control, the piston rod of fluid cylinder (3) is fixed on supporting disk (4), lower bearing pin (7) is connected in slips body (2) and goes up and pass through connecting rod piece (5) and be connected with the upper pin be fixed on supporting disk (4), extension spring (8) is fixed on supporting disk (4) and lower bearing pin (7).Patent of the present invention is monolithic hoisting structure, and the top of vertical slip spider is fixedly connected on snubbing serving equipment top rail, and the operation of hydraulic power end, by driller one people complete independently, can be unclamped or clamp oil pipe by Long-distance Control anti-jack slips.The slip insert slips body of three wedges being provided with different tubing size effectively can block oil pipe and block tighter and tighter, this anti-jack slips can effectively prevent tubing string to be ejected by strata pressure, and power placed in the middle is large, vertical clamping or to unclamp the strength of tubing string large, when unclamping tubing string, slips physical efficiency is fully opened to surrounding, ensures it is that down-hole special tool passes through smoothly mostly, this slips reliable operation, can ensure, lower tubular column operation personal safety and device security, guarantee construction operation carries out smoothly.
Claims (5)
1. a vertical oil pipe anti-jack slips, prevent from during with pressure flowline operation under being mainly used in oil well oil pipe being altered and effectively clamping oil pipe, be made up of vertical slip spider (1), slips body (2), fluid cylinder (3), supporting disk (4), connecting rod piece (5), upper pin (6), lower bearing pin (7), slip insert (8), extension spring (8), slip spider (1) is for disc type overall structure and have internal taper hole, slips body (2) is installed slip insert (8), and slips body (2) and slip spider (1) are by measure-alike circular arc taper-face contact, and can relatively slide up and down, fluid cylinder (3) is fixed on slip spider (1) and goes up and pass through hydraulic switching valve Long-distance Control, the piston rod of fluid cylinder (3) is fixed on supporting disk (4), lower bearing pin (7) is connected in slips body (2) and goes up and pass through connecting rod piece (5) and be connected with the upper pin be fixed on supporting disk (4), extension spring (8) is fixed on supporting disk (4) and lower bearing pin (7).
2. the vertical oil pipe anti-jack slips of one according to claim 1, it is characterized in that: vertical slip spider (1) is disc type overall structure, and be fixedly connected on snubbing serving equipment, it is upper and act on vertically that fluid cylinder (3) is fixed on slip spider (1), and three fluid cylinders pressurize to have when having enough large power placed in the middle and unclamp oil pipe when ensureing clamping oil pipe simultaneously and enough large exit dynamics.
3. the vertical oil pipe anti-jack slips of one according to claim 1, it is characterized in that: slips body (2) male cone (strobilus masculinus) and slip spider (1) inner conical surface are provided with staged step, ensure that abdicating enough major path fuel feed pumps after slips body unclamps passes through smoothly.
4. the vertical oil pipe anti-jack slips of one according to claim 1, is characterized in that: be fixed on the fluid cylinder (3) on slip spider and influidic pipe is traditional thread binding special iron plate protective device.
5. the vertical oil pipe anti-jack slips of one according to claim 1, is characterized in that: be provided with extension spring (8) specially between supporting disk (4) and the lower bearing pin (7) connecting slips body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673451.7U CN204386511U (en) | 2014-11-12 | 2014-11-12 | A kind of vertical oil pipe anti-jack slips |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673451.7U CN204386511U (en) | 2014-11-12 | 2014-11-12 | A kind of vertical oil pipe anti-jack slips |
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| CN204386511U true CN204386511U (en) | 2015-06-10 |
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| CN201420673451.7U Active CN204386511U (en) | 2014-11-12 | 2014-11-12 | A kind of vertical oil pipe anti-jack slips |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358530A (en) * | 2014-11-12 | 2015-02-18 | 霸州市石大宏盛石化机械有限责任公司 | Vertical tar tube anti-jacking slip |
| CN106401504A (en) * | 2016-10-31 | 2017-02-15 | 江苏恒达机械制造有限公司 | Novel manual anti-ejecting slip |
| CN108979566A (en) * | 2018-08-21 | 2018-12-11 | 江苏如东联丰石油机械有限公司 | A kind of chuck novel operating handle mechanism |
| CN118008170A (en) * | 2024-04-10 | 2024-05-10 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
-
2014
- 2014-11-12 CN CN201420673451.7U patent/CN204386511U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358530A (en) * | 2014-11-12 | 2015-02-18 | 霸州市石大宏盛石化机械有限责任公司 | Vertical tar tube anti-jacking slip |
| CN106401504A (en) * | 2016-10-31 | 2017-02-15 | 江苏恒达机械制造有限公司 | Novel manual anti-ejecting slip |
| CN108979566A (en) * | 2018-08-21 | 2018-12-11 | 江苏如东联丰石油机械有限公司 | A kind of chuck novel operating handle mechanism |
| CN118008170A (en) * | 2024-04-10 | 2024-05-10 | 西安宇星石油机械新技术开发有限公司 | Top anti-falling chuck is prevented in combined type hydraulic gear drive |
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