CN105257235A - Rotary blowout preventer shell for large-size wellbore and shell connecting device - Google Patents
Rotary blowout preventer shell for large-size wellbore and shell connecting device Download PDFInfo
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- CN105257235A CN105257235A CN201510700298.1A CN201510700298A CN105257235A CN 105257235 A CN105257235 A CN 105257235A CN 201510700298 A CN201510700298 A CN 201510700298A CN 105257235 A CN105257235 A CN 105257235A
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- clip
- blowout preventer
- seat
- rotating blowout
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Abstract
The invention relates to the technical field of petroleum exploration and development, in particular to a rotary blowout preventer shell for a large-size wellbore and a shell connecting device. The rotary blowout preventer shell comprises a clamp hoop seat, a connector, a left clamp hoop and a right clamp hoop, wherein an upper annular groove and a lower annular groove are respectively formed in the upper end and the lower end of the clamp hoop seat, the clamp hoop seat is fixed with the connector through screw planting, a bush is fixedly mounted at the top of the clamp hoop seat through screw planting, the upper end and the lower end of the bush are respectively provided with an upper protrusion and a lower protrusion, the lower protrusion is located in the upper annular groove of the clamp hoop seat, an inner boss is disposed on the inner side of the lower portion of the bush, and the left clamp hoop and the right clamp hoop which can prevent the rotating assembly of a rotary blowout preventer from moving upwards are fixed on the outer side of the upper protrusion. The rotary blowout preventer shell has the advantages that the rotary blowout preventer shell is reasonable and compact in structure, convenient to use, high in practicality and capable of effectively increasing work efficiency; the drift diameter of the clamp hoop seat of the rotary blowout preventer is increased to solve the problem that an existing rotary blowout preventer is small in drift diameter and cannot satisfy the normal wellhead guide requirements of a super-large wellbore.
Description
Technical field
the present invention relates to petroleum exploration and development technical field, is a kind of big size hole rotating blowout preventer housing and housing linkage.
Background technology
at present, rotating blowout preventer is the necessaries of under balance pressure drilling, geothermal drilling, the drilling well of coal layer.The major function of rotating blowout preventer is to provide Stress control, realizes rotatory sealing, as usual to carry out drillng operation when certain well head pressure.Under balance pressure drilling is underbalanced drilling again, and refer to that bottom pressure is less than strata pressure when drilling well, the fluid at the bottom of ground controlledly enters pit shaft and is recycled to ground drilling technology.At present, under balance pressure drilling, conventional rotating blowout preventer housing latus rectum only has 350mm, can not meet the special under balance pressure drilling technique of more big size hole.Like this, be head it off, need the Novel rotating blowout preventer device that design can meet big size hole badly.
Summary of the invention
the invention provides a kind of big size hole rotating blowout preventer housing and housing linkage, overcome the deficiency of above-mentioned prior art, it effectively can solve the problem of the normal water conservancy diversion of well head that existing conventional rotating blowout preventer can not meet super large well under balance pressure drilling.
technical scheme one of the present invention is realized by following measures: a kind of big size hole rotating blowout preventer housing, comprise clip seat, connector, left clip and right clip, annular groove and lower annular groove on being respectively equipped with inside the top and bottom of clip seat, the upper end of connector is positioned at lower annular groove and clip seat and connector are fixedly installed togather by studding, the top of clip seat is installed with lining by studding, the top and bottom of lining are respectively equipped with projection and lower convexity, lower convexity seat is in the upper annular groove of clip seat, the inner side of lower convexity is provided with inner convex platform, be fixed with in the outside of projection and rotating blowout preventer can be stoped to rotate the up left clip of assembly and right clip, one end of left clip and right clip is hinged, the other end of left clip and right clip is fixed together by fastener.
here is the further optimization and/or improvements to foregoing invention technical scheme:
the outer lower portion of above-mentioned projection can be provided with draw-in groove, and can be provided with chuck in the lower end of left clip and right clip, chuck is positioned at draw-in groove.
between the upper annular groove of above-mentioned clip seat and lower convexity, sealing ring is installed.
the latus rectum of above-mentioned clip seat can be 525mm.
fluid issuing can be provided with on the right side of above-mentioned clip seat.
technical scheme two of the present invention is realized by following measures: a kind of housing linkage that have employed big size hole rotating blowout preventer housing described above, comprise big size hole rotating blowout preventer housing, wellhead connection device and rotation assembly, slips is installed with between wellhead connection device and connector, stage portion is provided with outside the middle part of rotation assembly, stage portion seat on rotation assembly is on lower convexity, and the inside lower end of left clip and right clip is up-narrow and down-wide frustum face.
above-mentioned wellhead connection device is can sleeve pipe or slide valve.
sealing ring can be installed between above-mentioned clip seat lower inside and wellhead connection device, between lining and rotation assembly, sealing ring can be installed.
reasonable and compact in structure of the present invention, easy to use, on the basis of the rotation assembly of original rotating blowout preventer, by increasing rotating blowout preventer clip seat latus rectum, on clip seat, fixedly mount easy-to-dismount lining again, overcome the problem of the little normal water conservancy diversion of the well head that can not meet super large well of existing rotating blowout preventer latus rectum.The dismounting of this device is convenient, practical, can effectively improve its operating efficiency.
Accompanying drawing explanation
accompanying drawing 1 is that the master of the embodiment of the present invention looks half section structural representation.
accompanying drawing 2 is the clip close-up schematic view of accompanying drawing 1.
accompanying drawing 3 is the clip seat close-up schematic view of accompanying drawing 1.
coding in accompanying drawing is respectively: 1 is clip seat, and 2 is connector, and 3 is left clip, 4 is right clip, and 5 is studding, and 6 is lining, 7 is inner convex platform, and 8 for rotating assembly, and 9 is chuck, 10 is sealing ring, and 11 is fluid issuing, and 12 is wellhead connection device, 13 is slips, 14 is stage portion, and 15 is projection, and 16 is lower convexity.
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 1, 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:
embodiment 1: as accompanying drawing 1, 2, shown in 3, this big size hole rotating blowout preventer housing comprises clip seat 1, connector 2, left clip 3 and right clip 4, annular groove and lower annular groove on being respectively equipped with inside the top and bottom of clip seat 1, the upper end of connector 2 is positioned at lower annular groove and clip seat 1 and connector 2 are fixedly installed togather by studding 5, the top of clip seat 1 is installed with lining 6 by studding 5, the top and bottom of lining 6 are respectively equipped with projection 15 and lower convexity 16, lower convexity 16 is in the upper annular groove of clip seat 1, the inner side of lower convexity 16 is provided with inner convex platform 7, be fixed with in the outside of projection 15 and rotating blowout preventer can be stoped to rotate the up left clip 3 of assembly 8 and right clip 4, one end of left clip 3 and right clip 4 is hinged, the other end of left clip 3 and right clip 4 is fixed together by fastener.Like this, by using, manual clip is fixing rotates assembly 8, and make it have good sealing and fix more firm, along with increasing of tube fluid pressure, its sealing also can strengthen accordingly.Reasonable and compact in structure of the present invention, easy to use, rotate on the basis of assembly 8 at original rotating blowout preventer, by increasing the latus rectum of rotating blowout preventer clip seat 1, on clip seat 1, fixedly mount easy-to-dismount lining 6 fixing seal again, effectively overcome existing rotating blowout preventer can not meet the normal water conservancy diversion of well head of super large well problem because latus rectum is little.
according to actual needs, above-mentioned big size hole rotating blowout preventer housing can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2,3, the outer lower portion of projection 15 is provided with draw-in groove, and be provided with chuck 9 in the lower end of left clip 3 and right clip 4, chuck 9 is positioned at draw-in groove.Like this, make firm being stuck between left clip 3 and right clip 4 of lining 6 energy, guarantee the compactness that lining is connected with between left clip and right clip.
as shown in accompanying drawing 1,2,3, between the upper annular groove of clip seat 1 and lower convexity 16, sealing ring 10 is installed.By installing sealing ring 10, guaranteeing that the sealing between clip seat and lining is good, avoiding occurring the phenomenons such as leakage.
as shown in accompanying drawing 1,2,3, the latus rectum of clip seat 1 is 525mm.Clip seat 1 latus rectum on rotating blowout preventer is set to 525mm, has not only filled up the blank of carrying out under-balanced drilling technology service when well is greater than 350mm, and be that the conventional under-balance drilling operation implemented in well construction period provides guarantee.
as shown in accompanying drawing 1,2,3, on the right side of described clip seat 1, be provided with fluid issuing 11.Like this, the liquid in well is discharged by the fluid issuing 11 on the right side of clip seat 1, convenient and practical.
embodiment 2: as shown in accompanying drawing 1,2,3, this have employed the housing linkage of big size hole rotating blowout preventer housing described above, comprise big size hole rotating blowout preventer housing, wellhead connection device 12 and rotate assembly 8, slips 13 is installed with between wellhead connection device 12 and connector 2, stage portion 14 is provided with outside the middle part of rotation assembly 8, stage portion 14 on rotation assembly 8 is on lower convexity 16, and the inside lower end of left clip 3 and right clip 4 is up-narrow and down-wide frustum face.Rotating assembly 8 is existing known technology, can be to rotate assembly for the conventional rotating blowout preventer in under-balance drilling operation.
as shown in accompanying drawing 1,2,3, described wellhead connection device 12 is sleeve pipe or slide valve.
as shown in accompanying drawing 1,2,3, sealing ring 10 is installed between clip seat 1 lower inside and wellhead connection device 12, between lining 6 and rotation assembly 8, sealing ring 10 is installed.
above technical characteristic constitutes embodiments of the invention, and it has stronger compliance and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
the use procedure of the embodiment of the present invention: first, is fixedly mounted on well head by connector 2 bottom of big size hole rotating blowout preventer shell by wellhead connection device 12, at the inner side of clip seat 1 fixed installation slips 13; Secondly, by offshore boring island rotating disk, lining 6, left clip 3 and right clip 4 are sent into, lining 6 is fixedly mounted on the top of wellhead connection device 12 by studding 5, rotation assembly 8 is from top to bottom entered in the middle part of clip seat 1, along with rotating after the drill bit of assembly 8 bottom enters well head, make together with the stage portion 14 at the middle part of rotation assembly 8 is against mutually with the convex platform 15 of lining 6, convex platform 15 plays the effect supporting and rotate assembly 8; Finally, clip seat 1 and rotation assembly 8 are tightened by the lock bolt between left clip 3 and right clip 4, thus realize rotating fixing seal between assembly 8 and shell clip seat 1.
Claims (10)
1. a big size hole rotating blowout preventer housing, it is characterized in that comprising clip seat, connector, left clip and right clip, annular groove and lower annular groove on being respectively equipped with inside the top and bottom of clip seat, the upper end of connector is positioned at lower annular groove and clip seat and connector are fixedly installed togather by studding, the top of clip seat is installed with lining by studding, the top and bottom of lining are respectively equipped with projection and lower convexity, lower convexity seat is in the upper annular groove of clip seat, the inner side of lower convexity is provided with inner convex platform, be fixed with in the outside of projection and rotating blowout preventer can be stoped to rotate the up left clip of assembly and right clip, one end of left clip and right clip is hinged, the other end of left clip and right clip is fixed together by fastener.
2. big size hole rotating blowout preventer housing according to claim 1, is characterized in that the outer lower portion of projection is provided with draw-in groove, and be provided with chuck in the lower end of left clip and right clip, chuck is positioned at draw-in groove.
3. big size hole rotating blowout preventer housing according to claim 1 and 2, is characterized in that being provided with sealing ring between the upper annular groove of clip seat and lower convexity.
4. big size hole rotating blowout preventer housing according to claim 1 and 2, is characterized in that the latus rectum of clip seat is 525mm.
5. big size hole rotating blowout preventer housing according to claim 3, is characterized in that the latus rectum of clip seat is 525mm.
6. the big size hole rotating blowout preventer housing according to claim 1 or 2 or 5, is characterized in that the right side of clip seat is provided with fluid issuing.
7. big size hole rotating blowout preventer housing according to claim 4, is characterized in that the right side of clip seat is provided with fluid issuing.
8. one kind have employed the housing linkage of big size hole rotating blowout preventer housing described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that comprising big size hole rotating blowout preventer housing, wellhead connection device and rotation assembly, slips is installed with between wellhead connection device and connector, stage portion is provided with outside the middle part of rotation assembly, stage portion seat on rotation assembly is on lower convexity, and the inside lower end of left clip and right clip is up-narrow and down-wide frustum face.
9. housing linkage according to claim 8, is characterized in that wellhead connection device is sleeve pipe or slide valve.
10. housing linkage according to claim 8 or claim 9, is characterized in that being provided with sealing ring between clip seat lower inside and wellhead connection device, lining and rotate between assembly and be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700298.1A CN105257235A (en) | 2015-10-26 | 2015-10-26 | Rotary blowout preventer shell for large-size wellbore and shell connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510700298.1A CN105257235A (en) | 2015-10-26 | 2015-10-26 | Rotary blowout preventer shell for large-size wellbore and shell connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105257235A true CN105257235A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510700298.1A Pending CN105257235A (en) | 2015-10-26 | 2015-10-26 | Rotary blowout preventer shell for large-size wellbore and shell connecting device |
Country Status (1)
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| CN (1) | CN105257235A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829702A (en) * | 2017-11-14 | 2018-03-23 | 中国石油集团渤海钻探工程有限公司 | Without well gas drilling wellhead assembly and bore a layer top layer method of turning up the soil |
| CN108194751A (en) * | 2017-12-29 | 2018-06-22 | 成都海猛石油机械有限公司 | A kind of efficient pressure-measuring method of preventer and preventer clip |
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
| CN112049598A (en) * | 2020-09-09 | 2020-12-08 | 中国石油天然气集团有限公司 | Novel large shell device for rotary control head |
| CN114922582A (en) * | 2022-05-16 | 2022-08-19 | 西南石油大学 | Well head device for circularly taking geothermal heat through optical fiber and double-layer continuous pipe |
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| US4361185A (en) * | 1980-10-31 | 1982-11-30 | Biffle John M | Stripper rubber for rotating blowout preventors |
| US4367795A (en) * | 1980-10-31 | 1983-01-11 | Biffle Morris S | Rotating blowout preventor with improved seal assembly |
| US4398599A (en) * | 1981-02-23 | 1983-08-16 | Chickasha Rentals, Inc. | Rotating blowout preventor with adaptor |
| US4949796A (en) * | 1989-03-07 | 1990-08-21 | Williams John R | Drilling head seal assembly |
| CN204040982U (en) * | 2014-08-21 | 2014-12-24 | 江苏卫东机械有限公司 | The under balance pressure drilling swivel control head of large housing |
| CN205135520U (en) * | 2015-10-26 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Jumbo size well rotating blowout preventer casing and casing connecting device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4361185A (en) * | 1980-10-31 | 1982-11-30 | Biffle John M | Stripper rubber for rotating blowout preventors |
| US4367795A (en) * | 1980-10-31 | 1983-01-11 | Biffle Morris S | Rotating blowout preventor with improved seal assembly |
| US4398599A (en) * | 1981-02-23 | 1983-08-16 | Chickasha Rentals, Inc. | Rotating blowout preventor with adaptor |
| US4949796A (en) * | 1989-03-07 | 1990-08-21 | Williams John R | Drilling head seal assembly |
| CN204040982U (en) * | 2014-08-21 | 2014-12-24 | 江苏卫东机械有限公司 | The under balance pressure drilling swivel control head of large housing |
| CN205135520U (en) * | 2015-10-26 | 2016-04-06 | 中国石油集团西部钻探工程有限公司 | Jumbo size well rotating blowout preventer casing and casing connecting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829702A (en) * | 2017-11-14 | 2018-03-23 | 中国石油集团渤海钻探工程有限公司 | Without well gas drilling wellhead assembly and bore a layer top layer method of turning up the soil |
| CN107829702B (en) * | 2017-11-14 | 2023-09-05 | 中国石油天然气集团有限公司 | Well mouth device for gas drilling without well hole and method for drilling stratum surface layer |
| CN108194751A (en) * | 2017-12-29 | 2018-06-22 | 成都海猛石油机械有限公司 | A kind of efficient pressure-measuring method of preventer and preventer clip |
| CN108194751B (en) * | 2017-12-29 | 2020-01-17 | 成都海猛石油机械有限公司 | Blowout preventer efficient pressure testing method and blowout preventer clamp |
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
| CN109577903B (en) * | 2018-12-27 | 2024-04-09 | 中国石油天然气集团有限公司 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
| CN112049598A (en) * | 2020-09-09 | 2020-12-08 | 中国石油天然气集团有限公司 | Novel large shell device for rotary control head |
| CN114922582A (en) * | 2022-05-16 | 2022-08-19 | 西南石油大学 | Well head device for circularly taking geothermal heat through optical fiber and double-layer continuous pipe |
| CN114922582B (en) * | 2022-05-16 | 2023-06-09 | 西南石油大学 | Geothermal wellhead device capable of circularly taking out heat through double-layer coiled tubing by passing through optical fiber |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 830026 the Xinjiang Uygur Autonomous Region economic and Technological Development Zone, Central South Road, No. 326, West Drilling Drilling Engineering Technology Research Institute of science and Technology Management Department of science and technology Applicant after: CNPC Xibu Drilling Engineering Company Limited Address before: 834000 the Xinjiang Uygur Autonomous Region Friendship Road, No. 98 Drilling Engineering Technology Research Institute, Karamay Applicant before: CNPC Xibu Drilling Engineering Company Limited |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
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| RJ01 | Rejection of invention patent application after publication |