CN102220850A - Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform - Google Patents
Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform Download PDFInfo
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- CN102220850A CN102220850A CN201010543688XA CN201010543688A CN102220850A CN 102220850 A CN102220850 A CN 102220850A CN 201010543688X A CN201010543688X A CN 201010543688XA CN 201010543688 A CN201010543688 A CN 201010543688A CN 102220850 A CN102220850 A CN 102220850A
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Abstract
The invention discloses an oil pipeline hydraulic jacking releasing device for well repair of an offshore oil and gas production platform, which comprises four hydraulic cylinders, hydraulic cylinder bases, slip bowls, an oil pipe slip and a hydraulic station, wherein the hydraulic cylinder bases are placed on a rotary table surface of a drill stand; the four hydraulic cylinders are installed on sleeves corresponding to the bases; the slip bowls are arranged on the upper ends of the hydraulic cylinders; oil pipelines are fixed in the centers of a rotary table and the slip bowls by a slip on the surface of the rotary plate and the slips of the slip bowls; and the lifting and clamping underground problem of the oil pipelines can be solved through the jacking and retracting of the four hydraulic cylinders. The oil pipeline hydraulic jacking releasing device has the advantages of supplementing the defects of influence on the normal proceeding of the well repair caused by insufficient lifting capability of a workover rig, saving operating and production costs, having a simple structure, being simple and convenient to install, having wide applicability and the like.
Description
Technical field
The invention belongs to a kind of marine oil and gas production platform well workover oil pipe hydraulic lifting release device
Background technology
Along with the increase in operation time of marine oil and gas production platform, some production platform workover rigs all are faced with producing well tubing packer deblocking difficulty makes the workover rig hoisting power can't satisfy deblocking requirement problem; The present invention can remedy on not enough also safe handling tubing packer of workover rig hoisting power and the oil pipe and put forward the problem that is hampered.In the past in the workover treatment process, play that an oil pipe is hampered and when needing unfreezing, if workover rig hoisting power deficiency then can't realize the well workover purpose; A kind of selection is to transform the existing workover rig of platform its hoisting power is improved, the another kind of selection is to rent self lift type semi girder offshore boring island to implement workover treatment, has the limitation that duty cycle is long, cost of investment is high and transform workover rig or rent self lift type semi girder offshore boring island.
Summary of the invention
The purpose of this invention is to provide a kind of marine oil and gas production platform well workover with oil pipe hydraulic lifting release device, rely on existing marine oil and gas production platform workover rig, hydraulic jacking device is set, separate the purpose of card request to satisfy oil pipe thereby realize strengthening hoisting power.
The present invention is made up of 4 hydraulic cylinders, hydraulic cylinder pedestal, slip spider, tubing slip and Hydraulic Station, the hydraulic cylinder pedestal is installed on platform turntable surface of drilling, 4 hydraulic cylinders are installed in the hydraulic cylinder pedestal respective sheath, slip spider is installed on the hydraulic cylinder top, slips and turntable surface slips in the slip spider tighten oil pipe simultaneously, by 4 hydraulic cylinder liftings, realize the motion of jacking bowl and slips, promote by the card oil pipe.
Main effect of the present invention:
1) little, the light weight of oil pipe hydraulic lifting release device volume, simple in structure, cost of investment is low, and installation period is short.
2) oil pipe hydraulic lifting release device carries out oil pipe unfreezing operation, can make full use of the equipment of existing workover rig, has extensive applicability and good economic benefits.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is apparatus of the present invention operating principle schematic diagram;
Fig. 3 is apparatus of the present invention operating principle schematic diagram.
The specific embodiment
As shown in Figure 1, hydraulic cylinder pedestal 5 is installed on platform turntable surface of drilling 6,4 hydraulic cylinders 3 are installed in hydraulic cylinder pedestal 5 respective sheath 4, slip spider 2 is installed on the hydraulic cylinder top, and slips 1 and turntable surface slips 8 in the slip spider 2 tighten oil pipe 7 simultaneously, by 4 hydraulic cylinder 3 liftings, realize jacking slip spider 2 and slips 1 motion, promote by card oil pipe 7, every hydraulic cylinder 3 is connected with synchronous valve 9 through high-pressure oil pipe, and synchronous valve 9 is connected with Hydraulic Station 10.
Produce high-pressure and hydraulic oil through the control valve control oil cylinder direction of motion by Hydraulic Station 10, shunt to 4 oil cylinders 3, realize jacking slip spider 2 and slips 1 motion, promote by the card oil pipe by synchronous valve.
As shown in Figure 2, be installed in hydraulic cylinder pedestal 5 respective sheath 4 at 5,4 hydraulic cylinders 3 of placement hydraulic cylinder pedestal on the workover rig platform turntable surface of drilling 6, slip spider 2 is installed on hydraulic cylinder 3 tops, and slips 1 and turntable surface slips 8 in the slip spider 2 tighten oil pipe 7 simultaneously; Be obstructed according to down-hole oil tube and meet the card situation, control Hydraulic Station 10 operating grips, 4 hydraulic cylinder 3 slow rising pushing tow slip spiders 2, slips 1 tightens up and to drive oil pipe 7 up automatically at this moment, and turntable surface slips 8 gets loose when oil pipe 7 is up automatically, and the oil pipe 7 of leaving is up; After slowly rising to the limit, 4 hydraulic cylinders 3 begin retraction;
As shown in Figure 3, push away slip spider 2 and fall after rise synchronously, slips 1 gets loose descending automatically; Oil pipe 7 when slips 1 is descending also with descending and drive turntable surface slips 8 descending and chucking oil pipes 7; 4 hydraulic cylinders 3 rise repeatedly, the descending oil pipe 7 of realizing is in down-hole part unfreezing.
Utilizing oil pipe hydraulic lifting release device to carry out unfreezing will make the suffered load of workover rig base greater than design load, implementing needs the workover rig base is carried out the structure check before the operation, under the intensity and the stable prerequisite that meets the demands of workover rig understructure, can realize effective utilization of this device.
Claims (1)
1. a marine oil and gas production platform well workover is with oil pipe hydraulic lifting release device, by 4 hydraulic cylinders, the hydraulic cylinder pedestal, slip spider, tubing slip and Hydraulic Station are formed, it is characterized in that going up installation hydraulic cylinder pedestal (5) at platform turntable surface of drilling (6), 4 hydraulic cylinders (3) are installed in the hydraulic cylinder pedestal respective sheath (4), slip spider (2) is installed on the hydraulic cylinder top, slips (1) and turntable surface slips (8) in the slip spider (2) tighten oil pipe (7) simultaneously, by 4 hydraulic cylinders (3) lifting, realize the motion of jacking slip spider (2) and slips (1), promote by card oil pipe (7), every hydraulic cylinder (3) is connected with synchronous valve (9) through high-pressure oil pipe, and synchronous valve (9) is connected with Hydraulic Station (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010543688XA CN102220850A (en) | 2010-11-04 | 2010-11-04 | Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010543688XA CN102220850A (en) | 2010-11-04 | 2010-11-04 | Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102220850A true CN102220850A (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010543688XA Pending CN102220850A (en) | 2010-11-04 | 2010-11-04 | Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102220850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867156A (en) * | 2014-03-19 | 2014-06-18 | 东北石油大学 | Remote control operation machine-assisted releasing device used for oil-water well repair |
| CN107191151A (en) * | 2017-06-07 | 2017-09-22 | 盐城华亚石油机械制造有限公司 | Quick centring righting apparatus for work |
| GB2607310A (en) * | 2021-06-02 | 2022-12-07 | Mhwirth As | A removal apparatus for the removal of a well pipe from a well and a method for the operation of a well pipe removal apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375757Y (en) * | 1998-12-22 | 2000-04-26 | 胜利石油管理局胜利采油厂 | Releasing platform |
| CA2766058A1 (en) * | 2008-04-30 | 2009-11-05 | Rodgers Technology, Llc | Mobile hydraulic workover rig |
-
2010
- 2010-11-04 CN CN201010543688XA patent/CN102220850A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2375757Y (en) * | 1998-12-22 | 2000-04-26 | 胜利石油管理局胜利采油厂 | Releasing platform |
| CA2766058A1 (en) * | 2008-04-30 | 2009-11-05 | Rodgers Technology, Llc | Mobile hydraulic workover rig |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867156A (en) * | 2014-03-19 | 2014-06-18 | 东北石油大学 | Remote control operation machine-assisted releasing device used for oil-water well repair |
| CN107191151A (en) * | 2017-06-07 | 2017-09-22 | 盐城华亚石油机械制造有限公司 | Quick centring righting apparatus for work |
| CN107191151B (en) * | 2017-06-07 | 2019-06-11 | 盐城华亚石油机械制造有限公司 | Quick centring righting apparatus for work |
| GB2607310A (en) * | 2021-06-02 | 2022-12-07 | Mhwirth As | A removal apparatus for the removal of a well pipe from a well and a method for the operation of a well pipe removal apparatus |
| GB2607310B (en) * | 2021-06-02 | 2024-04-17 | Mhwirth As | A removal apparatus for the removal of a well pipe from a well |
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Application publication date: 20111019 |