CN103590765B - Oil gas well under-pressure operation well head shackle device - Google Patents
Oil gas well under-pressure operation well head shackle device Download PDFInfo
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- CN103590765B CN103590765B CN201210286453.6A CN201210286453A CN103590765B CN 103590765 B CN103590765 B CN 103590765B CN 201210286453 A CN201210286453 A CN 201210286453A CN 103590765 B CN103590765 B CN 103590765B
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Abstract
The invention discloses a wellhead tripping device for oil and gas well pressurized operation, which is designed for cooperating with pressurized tripping operation of complex tubular columns of oil and gas wells and realizing pressurized tripping in the device. When the shackle device works, the lower end of the device is connected with a well head, the upper end of the device is connected with a pressurized operation device to form a sealed cavity, a pipe column can realize shackle in the sealed cavity, and an upper pipe string after shackle is pulled out by the pressurized operation device. The invention has reliable work and simple and convenient operation, and can meet the operation requirement of lifting and lowering the complex pipe column under pressure in the oil and gas well.
Description
Technical field
The present invention relates to a kind of Oil/gas Well under-pressure operation well head breakout device, belong to Oil/gas Well trip-out technical field of operation with pressure.
Background technology
In the manufacturing process of gas field, fall to causing gas well temporarily by water logging because formation sand production, foul precipitation, flow string blowby and oil pipe break sometimes, or because of down-hole accident, casing deformation, burn into breaks, tube corrosion is bored a hole, breaking falls and oil pipe blocking causes gas well to stop production, so that scrap, therefore, for recovering gas well liquid loading, well workover will be carried out.Conventional method for well fixing mainly contains two kinds, and one is no killing well, namely when high-pressure gas well operation, utilizes not open flow wellhead assembly to control gas well and does not spray; Another kind is kill-job, namely to well, injects the suitable fluid of density from ground, restoration and reconstruction pressure balance.
Gas well snubbing serving technology is under no killing well condition, play a kind of method of lower tubular column, it adopts the pressure in bridging plug or blanking plug shutoff oil pipe, control oil jacket annular pressure by snubbing serving machine blowout preventer set, rely on snubbing serving machine hoisting system and workover rig to play lower tubular column.
In well, completion tubular column mainly contains blank tubing flow string, single packer flow string and multiple-string packer flow string three types.Blank tubing flow string structure is simple, bridging plug can be rendered to last root oil pipe, set successfully and can once trip out whole tubing string.Packer flow string complex structure, will throw in conventional bridging plug on downhole tool top, to trip out the above oil pipe of instrument in well.But in pit shaft, residue tool string cannot once trip out, and need tubing string separately to be tripped out by shackle, and current technology cannot realize wellheadpressure shackle, can not meet the Oil/gas Well job requirements removing complicated tubing string with pressure.
Summary of the invention
The object of the present invention is to provide a kind of Oil/gas Well under-pressure operation well head breakout device, it can coordinate the trip-out operation with pressure of the complicated tubing string of Oil/gas Well, after completing shackle with pressure, complicated tubing string is tripped out well head with pressure in shackle device.
Concrete technical scheme of the present invention is as follows:
The support column upper end of well head shackle device connects upper flange plate, and lower end connects lower flange;
Upper flange plate central stepped post connects upper pressing cap, and tubular top connection upper end connects upper pressing cap centre bore, and lower end connects rotary barrel centre bore;
Lower flange central stepped post connects lower pressure-pad, and tubular lower contact lower end connects lower pressure-pad centre bore, and upper end connects rotary barrel centre bore; Lower flange central stepped column casing wall is provided with radial fastening slips, and fastening slips front end connects adjusting bolt, and rear end connects fastening slips spring;
Rotary barrel barrel is provided with radial rotating hole and the fastening slips of rotary barrel, and the fastening slips front end of rotary barrel connects adjusting bolt, and rear end connects the fastening slips spring of rotary barrel.
Oil/gas Well under-pressure operation well head breakout device reliable operation of the present invention, easy and simple to handle, wellheadpressure shackle can be realized, meet the Oil/gas Well job requirements removing complicated tubing string with pressure.
Accompanying drawing explanation
Fig. 1 is Oil/gas Well under-pressure operation well head breakout device structural representation.
Detailed description of the invention
With reference to Fig. 1, embodiments of the invention are further illustrated:
Embodiment:
Oil/gas Well under-pressure operation well head breakout device comprises pressure-pad 1, top connection 2, rotary barrel fastening slips spring 4, the fastening slips of rotary barrel 3, lower contact 5, lower pressure-pad 6, fastening slips spring 8, fastening slips 7, lower flange 9, adjusting bolt 10, rotating hole 11, rotary barrel 12, support column 13 and upper flange plate 14:
Support column 13 upper end connects upper flange plate 14, and lower end connects lower flange 9;
Upper flange plate 14 central stepped post external screw thread connects upper pressing cap 1, and tubular top connection 2 upper external screw thread connects upper pressing cap 1 centre bore, and lower end external screw thread connects rotary barrel 12 centre bore;
Lower flange 9 central stepped post connects lower pressure-pad 6, and tubular lower contact 5 lower end external screw thread connects lower pressure-pad 6 centre bore, and upper external screw thread connects rotary barrel 12 centre bore; Lower flange 9 central stepped column casing wall is provided with radial fastening slips 7, and fastening slips 7 front end connects adjusting bolt 10, and rear end connects fastening slips spring 8;
Rotary barrel 12 barrel is provided with radial rotating hole 11 and the fastening slips 3 of rotary barrel, and rotary barrel fastening slips 3 front end connects adjusting bolt 10, and rear end connects the fastening slips spring 4 of rotary barrel.
During the work of this well head shackle device, lower flange 9 connects well head flange, and upper flange plate 14 connects operation device under pressure, forms shackle device annular seal space.Top tubing string is through in upper flange plate 14 central stepped post, and locked by the fastening slips 3 of rotary barrel, below tubing string is through in lower flange 9 central stepped post, is locked by fastening slips 7.When needing tubing string to trip out well head, rotate adjusting bolt 10, tighten the fastening slips of rotary barrel 3 and fastening slips 7, clamping tubing string, then special tool is inserted rotating hole 11, rotate backward rotary barrel 12 shackle, after shackle completes, operation device under pressure trips out square tube string immediately, and the no killing well realizing shaft column pulls out of hole.
Claims (3)
1. an Oil/gas Well under-pressure operation well head breakout device, is characterized in that:
Support column (13) upper end of well head shackle device connects upper flange plate (14), and lower end connects lower flange (9);
Upper flange plate (14) central stepped post connects upper pressing cap (1), and top connection (2) upper end connects upper pressing cap (1) centre bore, and lower end connects rotary barrel (12) centre bore;
Lower flange (9) central stepped post connects lower pressing cap (6), and lower contact (5) lower end connects lower pressing cap (6) centre bore, and upper end connects rotary barrel (12) centre bore; Lower flange (9) central stepped column casing wall is provided with radial fastening slips (7), and fastening slips (7) front end connects adjusting bolt (10), and rear end connects fastening slips spring (8);
Rotary barrel (12) barrel is provided with radial rotating hole (11) and the fastening slips of rotary barrel (3), the fastening slips of rotary barrel (3) front end connects adjusting bolt (10), and rear end connects the fastening slips spring (4) of rotary barrel.
2. Oil/gas Well under-pressure operation well head breakout device as claimed in claim 1, is characterized in that:
Upper flange plate (14) central stepped post external screw thread connects upper pressing cap (1), top connection (2) upper external screw thread of tubular connects upper pressing cap (1) centre bore, and lower end external screw thread connects rotary barrel (12) centre bore;
Lower flange (9) central stepped post external screw thread connects lower pressing cap (6), lower contact (5) the lower end external screw thread of tubular connects lower pressing cap (6) centre bore, and upper external screw thread connects rotary barrel (12) centre bore.
3. Oil/gas Well under-pressure operation well head breakout device as claimed in claim 1, when it is characterized in that this device works, lower end connects well head, upper end connects operation device under pressure, form an annular seal space, tubing string realizes shackle in annular seal space, and the upper tube string after shackle is tripped out by operation device under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286453.6A CN103590765B (en) | 2012-08-13 | 2012-08-13 | Oil gas well under-pressure operation well head shackle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286453.6A CN103590765B (en) | 2012-08-13 | 2012-08-13 | Oil gas well under-pressure operation well head shackle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103590765A CN103590765A (en) | 2014-02-19 |
| CN103590765B true CN103590765B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210286453.6A Active CN103590765B (en) | 2012-08-13 | 2012-08-13 | Oil gas well under-pressure operation well head shackle device |
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| CN (1) | CN103590765B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351594B (en) * | 2016-10-10 | 2018-05-08 | 杨颖辉 | Closed hydraulic tongs |
| CN107900977A (en) * | 2017-12-25 | 2018-04-13 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of device and method for loading and unloading well head bottom flange |
| CN110630204B (en) * | 2019-08-21 | 2022-03-29 | 中国石油天然气股份有限公司 | Under-pressure operation equipment for gas drive injection well completion and under-pressure operation method thereof |
| CN111878016B (en) * | 2020-08-05 | 2022-04-29 | 四川圣诺油气工程技术服务有限公司 | Under-pressure back-off device for gas well and oil pipe lifting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655256A (en) * | 1946-08-22 | 1951-07-18 | Standard Oil Dev Co | Improvements in or relating to apparatus for rotating cylindrical bodies |
| CN2924070Y (en) * | 2006-06-14 | 2007-07-18 | 中国石油天然气股份有限公司 | Bidirectional oil-well pump |
| CN101864904A (en) * | 2010-06-09 | 2010-10-20 | 李呈祥 | Operation device for stripping sucker rod at pressure |
| CN201794525U (en) * | 2010-06-09 | 2011-04-13 | 李呈祥 | Sucker rod trip operating device under pressure |
| CN201802330U (en) * | 2010-09-01 | 2011-04-20 | 中国石油天然气集团公司 | Uninterrupted circular drilling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9644442B2 (en) * | 2009-03-06 | 2017-05-09 | Cameron International Corporation | Multi-pressure flange connection |
-
2012
- 2012-08-13 CN CN201210286453.6A patent/CN103590765B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB655256A (en) * | 1946-08-22 | 1951-07-18 | Standard Oil Dev Co | Improvements in or relating to apparatus for rotating cylindrical bodies |
| CN2924070Y (en) * | 2006-06-14 | 2007-07-18 | 中国石油天然气股份有限公司 | Bidirectional oil-well pump |
| CN101864904A (en) * | 2010-06-09 | 2010-10-20 | 李呈祥 | Operation device for stripping sucker rod at pressure |
| CN201794525U (en) * | 2010-06-09 | 2011-04-13 | 李呈祥 | Sucker rod trip operating device under pressure |
| CN201802330U (en) * | 2010-09-01 | 2011-04-20 | 中国石油天然气集团公司 | Uninterrupted circular drilling device |
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| CN103590765A (en) | 2014-02-19 |
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