CN1254052A - Drilling rotary blowout preventer - Google Patents

Drilling rotary blowout preventer Download PDF

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Publication number
CN1254052A
CN1254052A CN 99117376 CN99117376A CN1254052A CN 1254052 A CN1254052 A CN 1254052A CN 99117376 CN99117376 CN 99117376 CN 99117376 A CN99117376 A CN 99117376A CN 1254052 A CN1254052 A CN 1254052A
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CN
China
Prior art keywords
central tube
blowout preventer
core
housing
drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 99117376
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Chinese (zh)
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CN1081283C (en
Inventor
魏明扬
王福培
秦世宽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNPC Chuanqing Drilling Engineering Co Ltd
Original Assignee
Sichuan Petroleum Administration Bureau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Petroleum Administration Bureau filed Critical Sichuan Petroleum Administration Bureau
Priority to CN99117376A priority Critical patent/CN1081283C/en
Publication of CN1254052A publication Critical patent/CN1254052A/en
Application granted granted Critical
Publication of CN1081283C publication Critical patent/CN1081283C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The present invention relates to a drilling rotating blowout preventer, used for under balance pressure drilling. Said invention includes rotating assembly and shell body, and is characterized by that it possesses upper and lower two rubber cores in the interior of rotating assembly, and implements forced lubrication and water cooling for bearing and V-type packing set so as to solve the problems of existent technology, in which after its adopted single rubber core is worn, it can not implement effective sealing and its bearing and V-type packing set are easy to be worn due to heating. Said invention possesses the following advantages: adoption of double rubber core makes its sealing more effective and the forced lubrication and cooling make the bearing and packing set not easy to be heated, and the rotating assembly and shell body are connected by means of clamping band, so that the upper and lower rubber core are easy to replace.

Description

A kind of drilling rotary blowout preventer
A kind of drilling rotary blowout preventer is used under balance pressure drilling, belongs under balance pressure drilling well-control equipment technical field.
At present, the balanced drilling technology that China also is to use basically, a spot of preventer that is used under balance pressure drilling mainly contains the single rubber core rotating blowout preventer, abroad, rotating blowout preventer as Xie Fuer company mainly is a single rubber core, and be monolithic, and there is not the packing cooling duct, the shortcoming of prior art is: because it adopts substantially is single rubber core, so, when the single rubber core that is installed in the bottom, the back sealing that is worn in drilling process just is difficult to realize that the bearing of prior art is mainly by annotating butter, so can not be lubricated bearing effectively, cause the damage of bearing easily, do not cool off, so supporting positive cover and V-type packing very easily generate heat and damage at the bottom packing of prior art equipment.
The objective of the invention is to design a kind of two glue core rotating blowout preventers that constitute by last lower glue core, at upper and lower supporting positive cover, all impose the device of forced feed lubrication or cooling in bearing and the V-type packing, can check the sealing situation of upper and lower glue core at any time by peep hole, and it is as a whole to rotate the design of assembly and packing unit, so that dismounting.
The present invention is achieved in that and the present invention includes rotation assembly and housing, lower glue core is fixed on the bottom of central tube, the gluing core is fixed on the top of central tube, outside by clamp connection rotation assembly and housing, when lower glue core need be changed, as long as pull down clip, just can propose lower glue core changes, in the time of need changing the glue core, as long as it is just replaceable to pull down the top adpting flange, can carry out forced feed lubrication to bearing by the through hole that is located in the sliding bearing supporting positive cover of top, by the water injection hole of bottom setting, can be to the V-type packing, the cooling that circulates of supporting positive cover and cooling heat dissipation.
Advantage of the present invention is: because employing is two glue cores, its sealing is more effective, can prolong its application life effectively and guarantee its sealing effectiveness to the forced feed lubrication of bearing with to the water filling cooling of packing, simultaneously, because the replacing of glue core is convenient in the effect of clip of the present invention.
Fig. 1 is an assembling schematic diagram of the present invention.
Fig. 2 is the structural representation of half-twist to the right of Fig. 1 among the present invention.
Provide embodiments of the invention below in conjunction with accompanying drawing: the present invention includes a rotation assembly and a housing, in the rotation assembly, be provided with a central tube 6, the top of central tube 6 is provided with one and goes up adpting flange 1, be fixed on the central tube 6 by bolt and alignment pin 3, be provided with a gluing core 2 on the top of central tube 6, be provided with an oil pressure capsule 5 in the annular space between gluing core 2 and the central tube 6, be provided with a lower glue core on the top of central tube 6 and leak peep hole 4, a sliding bearing supporting positive cover 8 is arranged in the outside of central tube 6, in sliding bearing supporting positive cover 8, be provided with grease channel 10, its outside is provided with lubrication oil injection hole 9 and tap 12, outside, the middle part of central tube 6 is provided with radially cone rolling 13 of an axial ball bearing 11 and, be provided with V-type packing 16 in the bottom of central tube 6, abrasionproof supporting positive cover 17, cold sink 15 and cooling water inlet 18 and outlet opening 25, also be provided with a lower glue core 20 in the bottom of central tube 6, be fixed on the central tube 6 by bolt 19; On housing 26, be provided with an injection hole 28, the bottom of housing 26 and transversely be respectively equipped with the flange 22 and 21 of big latus rectum, on housing 26, also be provided with a V-type packing seepage peep hole 27, clip 23 is arranged on the outside of housing 26, by 4 bolts, 24 fixedly connected rotation assembly and housings 26, when operation, on drilling tool, adorn a leading cone, by upper flange 1, pass gluing core 2 and lower glue core 20, connecting drill bit again is lowered in the well head, connecting well head and this preventer can operate, in drilling process, be worn as lower glue core 20, well liquid will be gone up to the annular space of gluing core 2 and central tube 6, just can see and determine whether changing lower glue core 20 by peep hole 3, wearing and tearing as gluing 2 are not serious, can be by oiling joint 7 to 5 oilings of oil pressure capsule, force gluing core 2 to pack tightly drilling tool and play sealing function, in drilling process, by to 9 oilings of lubrication oil injection hole, make sliding bearing supporting positive cover 8 and axial ball bearing 11 and radially cone rolling 13 be immersed in the lubrication oil, lubrication oil can make the lubricated circulation that realizes by tap 12, by to bottom cooling water injection hole 18 water fillings, make cold sink 15, V-type packing 16 and abrasionproof supporting positive cover 17 obtain cooling, when bottom glue core 20 needs to change, as long as unclamp 4 set bolts 24 on the clip 23, just the rotation assembly can be proposed and plays the replacing of glue 20 together with lower glue core 20, when needing to change gluing core 2, as long as pulling down adpting flange 1 can carry out, by observing the abrasion condition that V-type packing weepage holes 27 can be understood V-type packing 16, the injection hole 28 that is provided with on the housing 26 can carry out special operation or do pressure release and use, last adpting flange 1 can connect preventer, slips, manual slip and other the not kill-job equipment that makes a trip, 26 times adpting flanges 22 of housing can be connected annular preventer with horizontal adpting flange 21, hydraulic operated valve and other equipment, 14 are the sealing ring between rotation assembly and the housing.

Claims (3)

1. a drilling rotary blowout preventer is made of rotation assembly and housing, it is characterized in that:
A. in described rotation assembly, be provided with a central tube, top is provided with an adpting flange, be fixed on the central tube by nut and alignment pin, be provided with a gluing core on the top of central tube, well pressure ring between gluing core and central tube is provided with an oil pressure capsule in the air, be provided with a lower glue core on the top of central tube and leak peep hole, a sliding bearing supporting positive cover is arranged in the outside of central tube, in the sliding bearing supporting positive cover, be provided with grease channel and forced feed lubrication oil injection hole and tap, outside, the middle part of central tube is provided with radially cone rolling of an axial ball bearing and, be provided with the V-type packing in the central tube bottom, the abrasionproof supporting positive cover, cold sink and cooling water inlet and outlet opening also have a lower glue core in the bottom of central tube, by being bolted on the central tube;
B. be provided with an injection hole in described lower housing portion, lower housing portion and the horizontal adpting flange that a big latus rectum is respectively arranged also are provided with a V-type packing seepage peep hole on the housing, and hull outside also is provided with a clip.
2. a drilling rotary blowout preventer is characterized in that, the endoporus of described gluing core is a upper circular, and the bottom is square.
3. a drilling rotary blowout preventer is characterized in that, described rotation assembly and housing are fixing by clamp connection.
CN99117376A 1999-11-24 1999-11-24 Drilling rotary blowout preventer Expired - Lifetime CN1081283C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99117376A CN1081283C (en) 1999-11-24 1999-11-24 Drilling rotary blowout preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99117376A CN1081283C (en) 1999-11-24 1999-11-24 Drilling rotary blowout preventer

Publications (2)

Publication Number Publication Date
CN1254052A true CN1254052A (en) 2000-05-24
CN1081283C CN1081283C (en) 2002-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN99117376A Expired - Lifetime CN1081283C (en) 1999-11-24 1999-11-24 Drilling rotary blowout preventer

Country Status (1)

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CN (1) CN1081283C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080510A (en) * 2010-12-22 2011-06-01 中国海洋石油总公司 Submarine mud suction system and method for realizing marine riser-free mud reclamation well drilling
CN102704885A (en) * 2012-06-18 2012-10-03 盐城华亚石油机械制造有限公司 Multipurpose well shutting device
CN103470207A (en) * 2013-10-09 2013-12-25 盐城亚雄机械制造有限公司 Annular preventer with internally-arranged circulating water cooling system
CN103775018A (en) * 2012-10-25 2014-05-07 中国石油化工股份有限公司 Rotating seal assembly
CN104863972A (en) * 2015-05-12 2015-08-26 中国石油集团川庆钻探工程有限公司工程技术研究院 Dynamic seal axial circulating cooling structure of rotary blowout preventer
CN113236185A (en) * 2021-05-24 2021-08-10 中海油田服务股份有限公司 High-temperature-resistant heat-insulation blowout preventer
CN114635662A (en) * 2021-10-26 2022-06-17 中国石油天然气集团有限公司 Rotary blowout preventer and system capable of monitoring rubber core state and preventing drilling fluid from overflowing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU717281A1 (en) * 1978-01-06 1980-02-25 Предприятие П/Я М-5616 Rotatable blowout preventer
SU712489A1 (en) * 1978-07-19 1980-01-30 Краснодарский Государственный Научно- Исследовательский И Проектный Институт Нефтяной Промышленности Rotary blow-preventer
SU819302A1 (en) * 1978-12-07 1981-04-07 Предприятие П/Я М-5616 Rotary blowout preventer
SU983253A1 (en) * 1979-07-06 1982-12-23 Научно-Производственное Объединение По Термическим Методам Добычи Нефти "Союзтермнефть" Министерства Нефтяной Промышленности Ссср Rotatable blowout preventer
US4531580A (en) * 1983-07-07 1985-07-30 Cameron Iron Works, Inc. Rotating blowout preventers
US5224557A (en) * 1991-07-22 1993-07-06 Folsom Metal Products, Inc. Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms
US5251869A (en) * 1992-07-16 1993-10-12 Mason Benny M Rotary blowout preventer
US5848643A (en) * 1996-12-19 1998-12-15 Hydril Company Rotating blowout preventer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080510A (en) * 2010-12-22 2011-06-01 中国海洋石油总公司 Submarine mud suction system and method for realizing marine riser-free mud reclamation well drilling
CN102704885A (en) * 2012-06-18 2012-10-03 盐城华亚石油机械制造有限公司 Multipurpose well shutting device
CN103775018A (en) * 2012-10-25 2014-05-07 中国石油化工股份有限公司 Rotating seal assembly
CN103775018B (en) * 2012-10-25 2016-04-20 中国石油化工股份有限公司 A kind of rotary sealing assembly
CN103470207A (en) * 2013-10-09 2013-12-25 盐城亚雄机械制造有限公司 Annular preventer with internally-arranged circulating water cooling system
CN104863972A (en) * 2015-05-12 2015-08-26 中国石油集团川庆钻探工程有限公司工程技术研究院 Dynamic seal axial circulating cooling structure of rotary blowout preventer
CN113236185A (en) * 2021-05-24 2021-08-10 中海油田服务股份有限公司 High-temperature-resistant heat-insulation blowout preventer
CN114635662A (en) * 2021-10-26 2022-06-17 中国石油天然气集团有限公司 Rotary blowout preventer and system capable of monitoring rubber core state and preventing drilling fluid from overflowing
CN114635662B (en) * 2021-10-26 2024-02-06 中国石油天然气集团有限公司 Rotary blowout preventer capable of monitoring rubber core state and preventing drilling fluid from overflowing and system

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C10 Entry into substantive examination
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C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHINA PETROLEUM GROUP CHUANQING DRILLING ENGINEER

Free format text: FORMER OWNER: SICHUAN PETROLEUM ADMINISTRATION

Effective date: 20081017

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20081017

Address after: The 1 section of No. 3 company Chuanqing drilling technology information office overlooking the green road in Chengdu city of Sichuan Province

Patentee after: Chuanqing Drilling Engineering Co., Ltd. of China National Petroleum Corporation

Address before: Sichuan Chengdu No. 1 Bridge Sichuan Petroleum Administration Bureau Patent Office

Patentee before: Sichuan Petroleum Administration

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20020320