[특허]Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms

Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/06
출원번호	US-0002142 (1993-01-11)
발명자 / 주소	Yenulis Glenn (Adger AL) Folsom Clint (Birmingham AL)
출원인 / 주소	Folsom Metal Products, Inc. (Bessemer AL 02)
인용정보	피인용 횟수 : 87 인용 특허 : 0

초록 ▼

An improved rotary blowout preventer having a rotary housing rotably mounted within an outer housing and carrying an annular packer assembly hydraulically actuated by fluid circulated through the outer housing by hydraulic pumps. An annular adapter is detachably and reattachably connected to an upper rim of the rotary housing. The adapter has a tubular, elastomeric sleeve detachably and reattachably connected thereto that depends within the rotary housing adjacent the packer assembly. A drill pipe is received within the sleeve and is sealably engaged thereby when the packer assembly is urged inwardly by the circulated hydraulic fluid. The sleeve protects the packer assembly from wear and is easily replaced with other sleeves of like configuration. The sleeve has a plurality of rigid grippers seated therein which extend flush with an inner surface thereof for gripping the drill pipe to facilitate concomitant rotation of the sleeve and rotary housing therewith. The circulating pumps have a heat exchanger connected thereto for cooling the hydraulic fluid which reduces the internal temperature of the rotary blowout preventer to extend the operating life of various bearing and seal assemblies commonly found therein. Filters are provided to remove foreign particulate matter dislodged from the outer casing by the circulating hydraulic fluid.

대표청구항 ▼

A rotary blowout preventer connected to and supported by a casing spool for engaging a drill pipe received therein to prevent wellbore fluids flowing into the casing spool from migrating thereabove, comprising: (a) an outer housing connected to and supported by said casing spool with the interior of said outer housing in communication therewith; (b) a rotary housing, having a packer assembly therein, rotably supported within said outer housing by bearing assemblies and sealably engaged by seal assemblies connected to said outer housing, wherein an annulus is formed by said outer housing, said rotary housing and said seals; (c) a sleeve assembly detachably and reattachably connected to a rim forming an upper end of said rotary housing, wherein said sleeve assembly has a tubular elastomeric sleeve that depends within said rotary housing intermediate said packer assembly and said drill pipe; and (d) means connected to and in communication with said outer housing for circulating hydraulic fluid through said annulus to urge said packer assembly and said sleeve inwardly to sealingly abut said drill pipe, wherein said circulated hydraulic fluid cools said bearing and seal assemblies and removes particulate matter therefrom.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (87)

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연합인증

Rotary blowout preventer adaptable for use with both kelly and overhead drive mechanisms 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허를 인용한 특허 (87)

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