CN102606109B - Shutter-type oil pipe float valve device - Google Patents
Shutter-type oil pipe float valve device Download PDFInfo
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- CN102606109B CN102606109B CN201210095070.0A CN201210095070A CN102606109B CN 102606109 B CN102606109 B CN 102606109B CN 201210095070 A CN201210095070 A CN 201210095070A CN 102606109 B CN102606109 B CN 102606109B
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Abstract
The present invention relates to insufficient balance well completion technical field, is a kind of shutter-type oil pipe float valve device; It comprises body, locking device and can limit the shutter-type valve core device opened under pressure; Internal thread or external screw thread is had at the left part of body, external screw thread or internal thread is had at the right part of body, boss is had in the middle part of the inwall of body, locking device is fixedly mounted in the inner body wall of boss right, the left end of shutter-type valve core device holds out against on the right side of boss, and the right-hand member of shutter-type valve core device holds out against the left end of locking device; Reasonable and compact in structure of the present invention, easy to use, by boss, valve valve seat, valve, torsion spring and locking shell fragment with the use of, realize the object preventing from oil pipe operation process mesohigh gas stream being altered under insufficient balance well completion easily spray and drilling fluid loss, there is simple to operate, safe and reliable feature, reduce cost of production, improve production efficiency.
Description
Technical field
the present invention relates to insufficient balance well completion technical field, is a kind of shutter-type oil pipe float valve device.
Background technology
when implementing oil pipe operation under insufficient balance well completion, shaft bottom head of liquid is less than formation pore fluid pressure, formation fluid with controlling enters pit shaft, oil gas in oil pipe or oil sets annular space return out, annular space has swivel control head or rotating blowout preventer to control fluid returns, if do not take blowout prevention procedure in oil pipe, gently then affect normal construction, heavy then occur well control accident.In addition, no killing well in workover treatment removes string technology develop rapidly, each oil field is to the favor of band pressure oil pipe Technical comparing, but the tubing plug pattern being with pressuring oil pipe to use at present is single, complex structure, somewhat expensive, operation are loaded down with trivial details, seriously govern the development of lower tubular column technology with pressure.
Summary of the invention
the invention provides a kind of shutter-type oil pipe float valve device, overcome the deficiency of above-mentioned prior art, it effectively can solve the problem that existing apparatus pattern is single, complex structure, somewhat expensive and operation are loaded down with trivial details.
technical scheme of the present invention is realized by following measures: a kind of shutter-type oil pipe float valve device, comprises body, locking device and can limit the shutter-type valve core device opened under pressure; Internal thread or external screw thread is had at the left part of body, external screw thread or internal thread is had at the right part of body, boss is had in the middle part of the inwall of body, locking device is fixedly mounted in the inner body wall of boss right, the left end of shutter-type valve core device holds out against on the right side of boss, and the right-hand member of shutter-type valve core device holds out against the left end of locking device.
here is the further optimization and/or improvements to foregoing invention technical scheme:
above-mentioned shutter-type valve core device can comprise valve valve seat, valve and torsion spring; Valve free bearing is installed with at the right-hand member of valve valve seat, the left end of valve valve seat holds out against on the right side of boss, have the valve seat male cone (strobilus masculinus) that the left wide right side is narrow outside the right part of valve valve seat, there is valve opening at the middle part of valve valve seat, the right part inwall of valve opening has the valve seat inner conical surface that the left narrow right side is wide; The right part of valve is fixed with connecting rod, and small end is hinged on valve free bearing by hinge, and the lateral surface of valve is the door conical surface matched with valve seat inner conical surface, and valve to be pressed on valve seat inner conical surface by the door conical surface and to keep sealing; Hinge is provided with torsion spring, and one end of torsion spring holds out against on valve valve seat right side, and the other end of torsion spring holds out against on valve right side.
above-mentioned locking device can comprise lock sleeve and locking shell fragment; Lock sleeve is fixedly mounted in the inner body wall of boss right, is evenly fixed with the locking shell fragment being no less than two at the left end of lock sleeve, and each locking shell fragment is combined to form the wide cone cylinder in the left narrow right side, and the left end of locking shell fragment holds out against on the valve seat male cone (strobilus masculinus) of valve valve seat.
the left end of above-mentioned locking shell fragment is wide inclined-plane, the left narrow right side.
the internal diameter of above-mentioned boss is greater than the internal diameter of valve opening, and the internal diameter of lock sleeve is greater than the external diameter of valve valve seat.
above-mentioned lock sleeve and body are fixedly installed togather by screw thread.
above-mentionedly between valve and valve valve seat, valve sealing ring can be installed.
above-mentionedly between boss and valve valve seat, valve valve seat insert can be installed.
reasonable and compact in structure of the present invention, easy to use, by boss, valve valve seat, valve, torsion spring and locking shell fragment with the use of, realize the object preventing from oil pipe operation process mesohigh gas stream being altered under insufficient balance well completion easily spray and drilling fluid loss, there is simple to operate, safe and reliable feature, reduce cost of production, improve production efficiency.
Accompanying drawing explanation
accompanying drawing 1 is that the master of preferred embodiment looks broken section structural representation.
accompanying drawing 2 is that the A-A of accompanying drawing 1 is to sectional structure schematic diagram.
coding in accompanying drawing is respectively: 1 is body, and 2 is boss, and 3 is valve valve seat, 4 is valve, and 5 is torsion spring, and 6 is valve free bearing, 7 is valve seat male cone (strobilus masculinus), and 8 is valve opening, and 9 is valve seat inner conical surface, 10 is connecting rod, 11 is hinge, and 12 is lock sleeve, and 13 is locking shell fragment, 14 is valve sealing ring, and 15 is valve valve seat insert.
Detailed description of the invention
the present invention by the restriction of following embodiment, can not determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
as shown in Figure 1, this shutter-type oil pipe float valve device comprises body 1, locking device and can limit the shutter-type valve core device opened under pressure; Internal thread or external screw thread is had at the left part of body 1, external screw thread or internal thread is had at the right part of body 1, boss 2 is had in the middle part of the inwall of body 1, locking device is fixedly mounted on body 1 inwall of boss 2 right, the left end of shutter-type valve core device holds out against on the right side of boss 2, and the right-hand member of shutter-type valve core device holds out against the left end of locking device.
according to actual needs, above-mentioned shutter-type oil pipe float valve device can be made further optimization and/or improvements:
as shown in Figure 1, shutter-type valve core device comprises valve valve seat 3, valve 4 and torsion spring 5; Valve free bearing 6 is installed with at the right-hand member of valve valve seat 3, the left end of valve valve seat 3 holds out against on the right side of boss 2, the valve seat male cone (strobilus masculinus) 7 that the left wide right side is narrow is had outside the right part of valve valve seat 3, there is valve opening 8 at the middle part of valve valve seat 3, the right part inwall of valve opening 8 has the valve seat inner conical surface 9 that the left narrow right side is wide; The right part of valve 4 is fixed with connecting rod 10, and connecting rod 10 upper end is hinged on valve free bearing 6 by hinge 11, and the lateral surface of valve 4 is the door conical surface matched with valve seat inner conical surface 9, and valve 4 to be pressed on valve seat inner conical surface 9 by the door conical surface and to keep sealing; Hinge 11 is provided with torsion spring 5, one end of torsion spring 5 holds out against on valve valve seat 3 right side, and the other end of torsion spring 5 holds out against on valve 4 right side.Keep when torsion spring 5 makes valve 4 flat closing, only have and just open when the fluid pressure in valve opening 8 is greater than torsion spring 5 elastic force, when circulation of fluid cycles through valve 4 from left to right, valve 4 is opened automatically, when stopping when circulating, valve 4 is automatically closed under the effect of torsion spring 5, is equivalent to the effect of ball-and-seat, stops high-pressure oil gas by valve 4 is altered.Valve seat male cone (strobilus masculinus) 7 is preferably 45 degree of inclined-planes.
as shown in accompanying drawing 1,2, locking device comprises lock sleeve 12 and locking shell fragment 13; Lock sleeve 12 is fixedly mounted on body 1 inwall of boss 2 right, the locking shell fragment 13 being no less than two is evenly fixed with at the left end of lock sleeve 12, each locking shell fragment 13 is combined to form the wide cone cylinder in the left narrow right side, and the left end of locking shell fragment 13 holds out against on the valve seat male cone (strobilus masculinus) 7 of valve valve seat 3.Each locking shell fragment 13 is combined to form cone cylinder, can when tapping pin promotes valve valve seat 3, make valve valve seat 3 strut each locking shell fragment 13 by valve seat male cone (strobilus masculinus) 7, continue mobile, until by lock sleeve 12 in valve valve seat 3 is entered cone cylinder that locking shell fragment 13 formed.
as shown in Figure 2, the left end of locking shell fragment 13 is wide inclined-plane, the left narrow right side.Like this, be convenient to locking shell fragment 13 left end slide on the valve seat male cone (strobilus masculinus) 7 of valve valve seat 3.
as shown in Figure 1, the internal diameter of boss 2 is greater than the internal diameter of valve opening 8, and the internal diameter of lock sleeve 12 is greater than the external diameter of valve valve seat 3.The internal diameter of boss 2 is greater than the internal diameter of valve opening 8, is convenient to drop into special tapping pin and is disclosed down together with valve 4, torsion spring seat and torsion spring 5 by valve valve seat 3; The internal diameter of lock sleeve 12 is greater than the external diameter of valve valve seat 3, is convenient to valve valve seat 3 and falls to bottom pipe string in hand basket by the inner chamber of lock sleeve 12, makes that oil pipe is inside and outside to be communicated with.
as shown in Figure 1, lock sleeve 12 and body 1 are fixedly installed togather by screw thread.Like this, the installation and removal between lock sleeve 12 and body 1 are convenient to.
as shown in Figure 1, between valve 4 and valve valve seat 3, valve sealing ring 14 is installed.Like this, be convenient to seal between valve 4 and valve valve seat 3.
as shown in Figure 1, between boss 2 and valve valve seat 3, valve valve seat insert 15 is installed.Like this, be convenient to seal between boss 2 and valve valve seat 3,
above technical characteristic constitutes most preferred embodiment of the present invention, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
the use procedure of preferred embodiment: between the pump seat that left end of the present invention is upwards connected to completion oil pipe string and sand control screen, the equipments such as rotating control assembly and band pressure down pipe string devices auxiliary under complete oil pipe operation under underbalance (with pressure); Oil pipe string is down to precalculated position, setting tubing hanger, oil recovery (gas) tree, drop into special tapping pin or connect special tapping pin in oil well pump bottom, valve valve seat pushes away for 3 times by tapping pin, valve valve seat 3 is made to strut each locking shell fragment 13 by valve seat male cone (strobilus masculinus) 7, continue mobile in valve valve seat 3 is entered cone cylinder that locking shell fragment 13 formed, until by lock sleeve 12, valve valve seat 3, valve 4, valve free bearing 6 drop down onto in the hand basket bottom pipe string together with torsion spring 5, make the inside and outside connection of oil pipe, operation taken out by blowing or pump.Well recycling can be entered by secondary through cleaning, overhauling, maintain and re-assembly after in body 1 after valve valve seat 3, valve 4, torsion spring seat and torsion spring 5 go out well, thus reduce cost.
Claims (1)
1. a shutter-type oil pipe float valve device, is characterized in that comprising body, locking device and can limiting the shutter-type valve core device opened under pressure; Internal thread or external screw thread is had at the left part of body, external screw thread or internal thread is had at the right part of body, boss is had in the middle part of the inwall of body, locking device is fixedly mounted in the inner body wall of boss right, the left end of shutter-type valve core device holds out against on the right side of boss, and the right-hand member of shutter-type valve core device holds out against the left end of locking device; Wherein: valve valve seat, valve and torsion spring; Valve free bearing is installed with at the right-hand member of valve valve seat, the left end of valve valve seat holds out against on the right side of boss, have the valve seat male cone (strobilus masculinus) that the left wide right side is narrow outside the right part of valve valve seat, there is valve opening at the middle part of valve valve seat, the right part inwall of valve opening has the valve seat inner conical surface that the left narrow right side is wide; The right part of valve is fixed with connecting rod, and small end is hinged on valve free bearing by hinge, and the lateral surface of valve is the door conical surface matched with valve seat inner conical surface, and valve to be pressed on valve seat inner conical surface by the door conical surface and to keep sealing; Hinge is provided with torsion spring, and one end of torsion spring holds out against on valve valve seat right side, and the other end of torsion spring holds out against on valve right side; Locking device comprises lock sleeve and locking shell fragment; Lock sleeve is fixedly mounted in the inner body wall of boss right, is evenly fixed with the locking shell fragment being no less than two at the left end of lock sleeve, and each locking shell fragment is combined to form the wide cone cylinder in the left narrow right side, and the left end of locking shell fragment holds out against on the valve seat male cone (strobilus masculinus) of valve valve seat; The left end of locking shell fragment is wide inclined-plane, the left narrow right side; The internal diameter of boss is greater than the internal diameter of valve opening, and the internal diameter of lock sleeve is greater than the external diameter of valve valve seat; Lock sleeve and body are fixedly installed togather by screw thread; Valve sealing ring is installed between valve and valve valve seat; Valve valve seat insert is installed between boss and valve valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210095070.0A CN102606109B (en) | 2012-04-01 | 2012-04-01 | Shutter-type oil pipe float valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210095070.0A CN102606109B (en) | 2012-04-01 | 2012-04-01 | Shutter-type oil pipe float valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606109A CN102606109A (en) | 2012-07-25 |
| CN102606109B true CN102606109B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210095070.0A Active CN102606109B (en) | 2012-04-01 | 2012-04-01 | Shutter-type oil pipe float valve device |
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| Country | Link |
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| CN (1) | CN102606109B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370243A (en) * | 2015-12-04 | 2016-03-02 | 中国石油集团西部钻探工程有限公司 | Multifunctional oil pipe float collar |
| CN109025904B (en) * | 2018-07-26 | 2020-12-29 | 中国石油天然气股份有限公司 | Inclined cover plate valve for pumping unit monitoring well |
| CN111594081B (en) * | 2020-06-06 | 2022-04-15 | 青岛宏新天机械有限公司 | Integral well drilling float valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788595A (en) * | 1971-09-21 | 1974-01-29 | Gaz De France | Safety flap-valve |
| CN2506763Y (en) * | 2001-10-12 | 2002-08-21 | 蒋应政 | Automatic adjustable counter-jetting resistance joint |
| CN2520409Y (en) * | 2001-11-22 | 2002-11-13 | 马志 | Blowout prevention valve for oil production well |
| CN1793605A (en) * | 2005-12-24 | 2006-06-28 | 中国石化胜利油田有限公司采油工艺研究院 | Releasing gadget sealing insertion head gas-injection tube pile |
| CN201306140Y (en) * | 2008-10-29 | 2009-09-09 | 西部钻探吐哈钻井工艺研究院 | Valve type float valve |
| CN101818630A (en) * | 2010-04-28 | 2010-09-01 | 金湖富源机械有限公司 | Mechanical underbalance downhole casing valve |
| CN202500534U (en) * | 2012-04-01 | 2012-10-24 | 中国石油集团西部钻探工程有限公司 | Valve type oil pipe floating valve device |
-
2012
- 2012-04-01 CN CN201210095070.0A patent/CN102606109B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788595A (en) * | 1971-09-21 | 1974-01-29 | Gaz De France | Safety flap-valve |
| CN2506763Y (en) * | 2001-10-12 | 2002-08-21 | 蒋应政 | Automatic adjustable counter-jetting resistance joint |
| CN2520409Y (en) * | 2001-11-22 | 2002-11-13 | 马志 | Blowout prevention valve for oil production well |
| CN1793605A (en) * | 2005-12-24 | 2006-06-28 | 中国石化胜利油田有限公司采油工艺研究院 | Releasing gadget sealing insertion head gas-injection tube pile |
| CN201306140Y (en) * | 2008-10-29 | 2009-09-09 | 西部钻探吐哈钻井工艺研究院 | Valve type float valve |
| CN101818630A (en) * | 2010-04-28 | 2010-09-01 | 金湖富源机械有限公司 | Mechanical underbalance downhole casing valve |
| CN202500534U (en) * | 2012-04-01 | 2012-10-24 | 中国石油集团西部钻探工程有限公司 | Valve type oil pipe floating valve device |
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| CN102606109A (en) | 2012-07-25 |
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Address after: 830026 science and technology management division, West drilling and Drilling Engineering Research Institute, No. 326 South Central Road, Urumqi Economic Development Zone, the Xinjiang Uygur Autonomous Region, China Applicant after: CNPC Xibu Drilling Engineering Company Limited Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay Hongyan Road No. 80 Western Drilling Engineering Technology Research Institute of science and technology management department Applicant before: CNPC Xibu Drilling Engineering Company Limited |
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