CN112483036B - Barrier-free circulating operation blowout preventer - Google Patents
Barrier-free circulating operation blowout preventer Download PDFInfo
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- CN112483036B CN112483036B CN202011465367.2A CN202011465367A CN112483036B CN 112483036 B CN112483036 B CN 112483036B CN 202011465367 A CN202011465367 A CN 202011465367A CN 112483036 B CN112483036 B CN 112483036B
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- annular
- framework
- sealing rubber
- elastic
- sucker rod
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Abstract
The invention discloses a barrier-free type circulating operation blowout preventer, which comprises: the intermediate connection body, set up at the well head connector of intermediate connection body lower extreme and set up the locking gland in the intermediate connection body upper end be provided with the working chamber in intermediate connection body, well head connector and the locking gland between intermediate connection body and the imported connector and between intermediate connection body and the locking gland respectively the joint have elastic sealing rubber spare, elastic sealing rubber spare's structure includes: annular joint portion and the annular extrusion portion that is connected with annular joint portion, the one end that annular extrusion portion stretched into the working chamber is provided with convex extrusion face be provided with annular elasticity skeleton in the elastic sealing rubber spare respectively, the cross section of annular elasticity skeleton is J type structure.
Description
Technical Field
The invention relates to blowout prevention equipment, in particular to a barrier-free type circular operation blowout prevention device.
Background
The blowout preventer is a key part of a well control device, is mainly used for well head operation in the oil extraction and oil pumping processes, controls the pressure of a well head in the oil pumping process, effectively prevents well blowout accidents, and must be installed to ensure the safety of operators and equipment and achieve no environmental pollution. This is increasingly demanding on blowout preventers, which are too high in configuration but also high in cost and complex in operation, as for general oil well heads: the method not only considers safe construction, but also needs energy conservation, emission reduction, green and environmental protection, and simultaneously improves the working efficiency, so the method is particularly important for the design and selection of the blowout preventer.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is a barrier-free circulation operation blowout preventer with strong sealing performance.
In order to solve the technical problems, the invention adopts the technical scheme that: accessible formula circulation operation blowout preventer includes: the intermediate connection body, set up at the well head connector of intermediate connection body lower extreme and set up the locking gland in the intermediate connection body upper end be provided with the working chamber in intermediate connection body, well head connector and the locking gland between intermediate connection body and the imported connector and between intermediate connection body and the locking gland respectively the joint have elastic sealing rubber spare, elastic sealing rubber spare's structure includes: annular joint portion and the annular extrusion portion that is connected with annular joint portion, the one end that annular extrusion portion stretched into the working chamber is provided with convex extrusion face be provided with annular elasticity skeleton in the elastic sealing rubber spare respectively, the cross section of annular elasticity skeleton is J type structure, the structure of annular elasticity skeleton includes: skeleton head, the skeleton neck that is connected with the skeleton head and the skeleton afterbody that is connected with the skeleton neck, skeleton head and skeleton neck set up in annular joint portion, the skeleton afterbody sets up in annular extrusion portion.
The invention has the advantages that: the barrier-free type circular operation blowout preventer has the advantages of safe and reliable quality, small volume, light weight, compact structure, high safety factor, long service life of circular operation and stable blowout preventing sealing performance; the application range is wide, one sealing rubber piece can pass through pumping rods with various specifications in an accessible manner, and the sealing rubber piece is suitable for bidirectional circulation operation; the balance stability is strong, the product design has the functions of double sealing, double righting and double arc blowout prevention sealing, the transition sucker rod and the coupling can be smoothly balanced and stabilized, and meanwhile, the device has a certain protection effect; the double-arc blowout-preventing sealing rubber part has the characteristics of small resistance, high temperature resistance, wear resistance, high elasticity, strong sealing performance and the like; the device has the advantages of energy conservation, emission reduction, environmental protection, compact structure, and has the functions of blowout prevention, dust prevention, oil collection, oil removal, decontamination and the like.
Drawings
FIG. 1 is a schematic view of the barrier-free blowout preventer for cycle operation according to the present invention in a sealed sucker rod configuration.
FIG. 2 is a schematic structural view of a sealing sucker rod coupling when the barrier-free blowout preventer for cycle operation according to the present invention is used to pump out a sucker rod.
In the figure: 1. the middle connector, 2, well head connector, 3, locking gland, 4, working chamber, 5, elastic sealing rubber spare, 51, annular joint portion, 52, annular extrusion portion, 53, convex extrusion face, 6, annular elastic skeleton, 61, skeleton head, 62, skeleton neck, 63, skeleton afterbody, 7, sucker rod, 8, sucker rod coupling.
Detailed Description
The details of the present invention are described below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the barrier-free type circulation work blowout preventer includes: the intermediate connection body 1, set up at the well head connector 2 of 1 lower extreme of intermediate connection body and set up the locking gland 3 in 1 upper end of intermediate connection body be provided with working chamber 4 in intermediate connection body 1, well head connector 2 and the locking gland 3 the elastic sealing rubber spare 5 of joint respectively between intermediate connection body 1 and the imported connector 2 and between intermediate connection body 1 and the locking gland 3, the structure of elastic sealing rubber spare 5 includes: annular joint portion 51 and the annular extrusion portion 52 that is connected with annular joint portion 51, the one end that annular extrusion portion 52 stretched into in the working chamber 4 is provided with convex extrusion face 53 be provided with annular elasticity skeleton 6 in the elastic sealing rubber spare 5 respectively, the cross section of annular elasticity skeleton 6 is J type structure, the structure of annular elasticity skeleton 6 includes: skeleton head 61, the skeleton neck 62 that is connected with skeleton head 61 and the skeleton afterbody 63 that is connected with skeleton neck 62, skeleton head 61 and skeleton neck 62 set up in annular joint portion 51, skeleton afterbody 63 sets up in annular extrusion portion 52.
During the use, when sucker rod collar 8 is located the lower extreme of well head connector 2, annular elastic framework 6 extends, two elastic sealing rubber spare 5 carry out the double containment to sucker rod 7, when sucker rod 7 upwards promoted, sucker rod collar 8 removed to elastic sealing rubber spare 5 in, annular elastic framework 6 is by extrusion shrink, elastic sealing rubber spare 5 is along with annular elastic framework 6 contracts together, it offsets with sucker rod collar 8 to push elastic sealing rubber spare 5 under annular elastic framework 6's reaction force, thereby realize the sealed of sucker rod collar 8.
The barrier-free type circular operation blowout preventer has the advantages of safe and reliable quality, small volume, light weight, compact structure, high safety factor, long service life of circular operation and stable blowout preventing sealing performance; the application range is wide, one sealing rubber piece can pass through pumping rods with various specifications in an accessible manner, and the sealing rubber piece is suitable for bidirectional circulation operation; the balance stability is strong, the product design has the functions of double sealing, double righting and double arc blowout prevention sealing, the transition sucker rod and the coupling can be smoothly balanced and stabilized, and meanwhile, the device has a certain protection effect; the double-arc blowout-preventing sealing rubber part has the characteristics of small resistance, high temperature resistance, wear resistance, high elasticity, strong sealing performance and the like; the device has the advantages of energy conservation, emission reduction, environmental protection, compact structure, and has the functions of blowout prevention, dust prevention, oil collection, oil removal, decontamination and the like.
Claims (1)
1. Accessible formula circulation operation blowout preventer, its characterized in that: the method comprises the following steps: the device comprises an intermediate connector (1), a wellhead connector (2) arranged at the lower end of the intermediate connector (1) and a locking gland (3) arranged at the upper end of the intermediate connector (1), wherein working chambers (4) are arranged in the intermediate connector (1), the wellhead connector (2) and the locking gland (3), and elastic sealing rubber pieces (5) are respectively clamped between the intermediate connector (1) and an inlet connector (2) and between the intermediate connector (1) and the locking gland (3);
the structure of the elastic sealing rubber piece (5) comprises: the sealing device comprises an annular clamping portion (51) and an annular extrusion portion (52) connected with the annular clamping portion (51), wherein one end, extending into a working cavity (4), of the annular extrusion portion (52) is provided with a circular arc-shaped extrusion surface (53), annular elastic frameworks (6) are respectively arranged in elastic sealing rubber pieces (5), and the cross sections of the annular elastic frameworks (6) are of J-shaped structures;
the structure of the annular elastic framework (6) comprises: the framework comprises a framework head (61), a framework neck (62) connected with the framework head (61) and a framework tail (63) connected with the framework neck (62), wherein the framework head (6) and the framework neck (62) are arranged in an annular clamping part (51), and the framework tail (63) is arranged in an annular extrusion part (52);
when the sucker rod coupling (8) is positioned at the lower end of the wellhead connecting body (2), the annular elastic framework (6) stretches, and the two elastic sealing rubber pieces (5) carry out double sealing on the sucker rod (7); when the sucker rod (7) is lifted upwards, the sucker rod coupling (8) is moved to the interior of the elastic sealing rubber piece (5), the annular elastic framework (6) is extruded and contracted, the elastic sealing rubber piece (5) is contracted together with the annular elastic framework (6), the reaction force of the annular elastic framework (6) pushes the elastic sealing rubber piece (5) to be abutted against the sucker rod coupling (8), and the sealing of the sucker rod coupling (8) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465367.2A CN112483036B (en) | 2020-12-14 | 2020-12-14 | Barrier-free circulating operation blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465367.2A CN112483036B (en) | 2020-12-14 | 2020-12-14 | Barrier-free circulating operation blowout preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112483036A CN112483036A (en) | 2021-03-12 |
| CN112483036B true CN112483036B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011465367.2A Active CN112483036B (en) | 2020-12-14 | 2020-12-14 | Barrier-free circulating operation blowout preventer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061901A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Compensation type multi-purpose annular blowout preventer |
| CN203531828U (en) * | 2013-11-22 | 2014-04-09 | 中国石油天然气集团公司 | Oil-pressure shrinkage active compensation type rubber core of active sealing type rotary blowout preventer |
| CN104411918A (en) * | 2012-06-26 | 2015-03-11 | 海德里尔美国制造业有限责任公司 | Fiber reinforced elastomer anisotropic annular blowout preventer |
| CN105781473A (en) * | 2016-05-09 | 2016-07-20 | 中国石油天然气股份有限公司 | Variable-diameter blowout preventer for controllable non-well killing operation |
| CN107313737A (en) * | 2017-06-30 | 2017-11-03 | 中国石油大学(华东) | Double glue core annular preventers |
| CN208106372U (en) * | 2018-04-12 | 2018-11-16 | 胜利方兰德石油装备股份有限公司 | A kind of compound preventer of sucker rod |
| CN208502718U (en) * | 2018-04-28 | 2019-02-15 | 江苏亿德隆石油机械有限公司 | A kind of reducing blowout preventer flashboard |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746118Y (en) * | 2004-10-14 | 2005-12-14 | 河北华北石油荣盛机械制造有限公司 | Reducing flashboard for well drilling |
| CN101328787B (en) * | 2007-06-18 | 2013-06-19 | 大庆油田有限责任公司 | Seal device of oil pumping machine well elastic dynamic seal well head |
| CN201180514Y (en) * | 2008-03-25 | 2009-01-14 | 盐城市大冈石油工具厂有限责任公司 | Multifunctional gripper pipe blowout preventer |
| GB2549210B (en) * | 2011-03-23 | 2018-07-25 | Managed Pressure Operations | Blow out preventer |
| CN102400656A (en) * | 2011-10-31 | 2012-04-04 | 盐城市大冈石油工具厂有限责任公司 | Dual-seal connected blowout preventer |
| CN204663460U (en) * | 2015-05-05 | 2015-09-23 | 河北华北石油荣盛机械制造有限公司 | Ram preventer variable bore ram on a large scale |
-
2020
- 2020-12-14 CN CN202011465367.2A patent/CN112483036B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061901A (en) * | 2010-12-14 | 2011-05-18 | 雷宽成 | Compensation type multi-purpose annular blowout preventer |
| CN104411918A (en) * | 2012-06-26 | 2015-03-11 | 海德里尔美国制造业有限责任公司 | Fiber reinforced elastomer anisotropic annular blowout preventer |
| CN203531828U (en) * | 2013-11-22 | 2014-04-09 | 中国石油天然气集团公司 | Oil-pressure shrinkage active compensation type rubber core of active sealing type rotary blowout preventer |
| CN105781473A (en) * | 2016-05-09 | 2016-07-20 | 中国石油天然气股份有限公司 | Variable-diameter blowout preventer for controllable non-well killing operation |
| CN107313737A (en) * | 2017-06-30 | 2017-11-03 | 中国石油大学(华东) | Double glue core annular preventers |
| CN208106372U (en) * | 2018-04-12 | 2018-11-16 | 胜利方兰德石油装备股份有限公司 | A kind of compound preventer of sucker rod |
| CN208502718U (en) * | 2018-04-28 | 2019-02-15 | 江苏亿德隆石油机械有限公司 | A kind of reducing blowout preventer flashboard |
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| CN112483036A (en) | 2021-03-12 |
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