CN103590765A - 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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- CN103590765A CN103590765A CN201210286453.6A CN201210286453A CN103590765A CN 103590765 A CN103590765 A CN 103590765A CN 201210286453 A CN201210286453 A CN 201210286453A CN 103590765 A CN103590765 A CN 103590765A
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- end connects
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- centre bore
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- 238000003825 pressing Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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 Operating Pressure well head shackle device, belong to Oil/gas Well trip-out operation technique with pressure field.
Background technology
In the manufacturing process of gas field, because breaking, formation sand production, foul precipitation, flow string blowby and oil pipe fall to causing gas well temporarily by water logging sometimes, or because down-hole accident, casing deformation, burn into break, 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, produce, will carry out well workover.Conventional method for well fixing mainly contains two kinds, and the one, not kill-job,, when high-pressure gas well operation, utilizes not open flow wellhead assembly control gas well not spray; Another kind is kill-job, injects the fluid that density is suitable from ground to well, recovers and rebuilds pressure balance.
Gas well snubbing serving technology is under not kill-job condition, to play a kind of method of lower tubular column, it adopts the pressure in bridging plug or blanking plug shutoff oil pipe, by snubbing serving machine blowout preventer set, control oil jacket annular pressure, 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 is simple in structure, bridging plug can be rendered to last root oil pipe, can once trip out whole tubing strings after setting successfully.Packer flow string complex structure, throw on downhole tool top conventional bridging plug, to trip out the above oil pipe of instrument in well.But in pit shaft, residue tool string cannot once trip out, and need to tubing string separately could be tripped out by shackle, and current technology cannot realize wellheadpressure shackle, can not meet the Oil/gas Well job requirements that removes complicated tubing string with pressure.
Summary of the invention
The object of the present invention is to provide a kind of Oil/gas Well Operating Pressure well head shackle device, the trip-out operation with pressure that it can coordinate the complicated tubing string of Oil/gas Well completes after shackle with pressure in shackle device, and complicated tubing string is tripped out to well head with pressure.
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 fastening slips radially, and fastening slips front end connects adjusting bolt, and rear end connects fastening slips spring;
Rotary barrel barrel is provided with rotating hole and the fastening slips of rotary barrel radially, 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 Operating Pressure well head shackle device reliable operation of the present invention, easy and simple to handle, can realize wellheadpressure shackle, meet the Oil/gas Well job requirements that removes complicated tubing string with pressure.
Accompanying drawing explanation
Fig. 1 is Oil/gas Well Operating Pressure well head shackle device structural representation.
The specific embodiment
With reference to Fig. 1, embodiments of the invention are further illustrated:
Embodiment:
Oil/gas Well Operating Pressure well head shackle device comprises pressure-pad 1, top connection 2, the fastening slips spring 4 of rotary barrel, the fastening slips 3 of rotary barrel, 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:
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 posts, and by fastening slips 3 lockings of rotary barrel, below tubing string is through in lower flange 9 central stepped posts, by fastening slips 7 lockings.In the time of tubing string need to being tripped out to well head, rotation adjusting bolt 10, tighten the fastening slips 3 of rotary barrel and fastening slips 7, clamp tubing string, then special tool is inserted to rotating hole 11, rotate backward rotary barrel 12 shackles, after shackle completes, operation device under pressure trips out top pipe string immediately, and the not kill-job that realizes shaft column pulls out of hole.
Claims (3)
1. an Oil/gas Well Operating Pressure well head shackle device, is characterized in that:
The support column of well head shackle device (13) upper end 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 pressure-pad (6), and lower contact (5) lower end connects lower pressure-pad (6) centre bore, and upper end connects rotary barrel (12) centre bore; Lower flange (9) central stepped column casing wall is provided with fastening slips (7) radially, 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 rotating hole (11) and the fastening slips of rotary barrel (3) radially, the fastening slips of rotary barrel (3) front end connects adjusting bolt (10), and rear end connects the fastening slips spring of rotary barrel (4).
2. Oil/gas Well Operating Pressure well head shackle 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), and the top connection of tubular (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 external screw thread connects lower pressure-pad (6), and the lower contact of tubular (5) lower end external screw thread connects lower pressure-pad (6) centre bore, and upper external screw thread connects rotary barrel (12) centre bore.
3. Oil/gas Well Operating Pressure well head shackle device as claimed in claim 1, while it is characterized in that the work of this device, lower end connects well head, upper end connects operation device under pressure, form an annular seal space, tubing string is realized shackle in annular seal space, and the top pipe 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 true CN103590765A (en) | 2014-02-19 |
| CN103590765B CN103590765B (en) | 2015-10-28 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103590765B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351594A (en) * | 2016-10-10 | 2017-01-25 | 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 |
| CN110630204A (en) * | 2019-08-21 | 2019-12-31 | 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 |
| CN111878016A (en) * | 2020-08-05 | 2020-11-03 | 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 (6)
| 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 |
| US20110308815A1 (en) * | 2009-03-06 | 2011-12-22 | Cameron International Corporation | Multi-pressure flange connection |
-
2012
- 2012-08-13 CN CN201210286453.6A patent/CN103590765B/en active Active
Patent Citations (6)
| 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 |
| US20110308815A1 (en) * | 2009-03-06 | 2011-12-22 | Cameron International Corporation | Multi-pressure flange connection |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351594A (en) * | 2016-10-10 | 2017-01-25 | 杨颖辉 | Closed hydraulic tongs |
| 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 |
| CN110630204A (en) * | 2019-08-21 | 2019-12-31 | 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 |
| CN111878016A (en) * | 2020-08-05 | 2020-11-03 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103590765B (en) | 2015-10-28 |
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