[특허]Low profile and lightweight high pressure blowout preventer

Low profile and lightweight high pressure blowout preventer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/06
출원번호	US-0598811 (1996-02-09)
발명자 / 주소	Morrill Charles D. (Humble TX)
출원인 / 주소	Hydril Company (Houston TX 02)
인용정보	피인용 횟수 : 77 인용 특허 : 0

초록 ▼

A lightweight blowout preventer having a low profile is disclosed. Each of the rams have a sealing ring to be positioned thereabout to seal leaks from occurring between its bonnet and the ram body, thereby permitting the use of only about four connecting bolts for each side of the bonnet to the body and torqued for ordinary holding. A hinge plate is provided to allow selection of the side of the body for two associated bonnets. The hinge plate also is a manifold for the passageways for the hydraulic fluid to the fluid hinges. The hinges each includes a telescopic balancing sub with only one side spring for applying balanced pressure with the applied closing or opening hydraulic fluid to the hinge regardless of whether opening or closing hydraulic pressure is applied. The hydraulic passageways in the bonnets are located between the guideway extensions and the outside surfaces of the bonnets. The hinge plate and the bonnets can be inverted so that they can be mounted on either of two sides of the body.

대표청구항 ▼

A stacked low profile, lightweight and high pressure ram-type blowout preventer for an oil or gas well, comprising a body with a central vertical opening for allowing the presence of drilling or production tubing therethrough, said body also including a first pair of opposing guideways transverse to said vertical opening and a second pair of opposing guideways vertically below said first pair of opposing guideways for the operation of two pairs of rams to close and open said vertical opening, two bonnets bolted on each side of said body, a first bonnet on each side being located over a second bonnet, each of said first bonnets including a guideway extension contiguously in line with one of said first pair of opposing guideways and each of said second bonnets including a guideway extension contiguously in line with one of said second pair of opposing guideways of said body for respectively accommodating the drive end of one ram of each of said pairs of rams, a respective ram operating in each of said guideways of said body and contiguous guideway extensions of one of said bonnets, each of said rams including a motivating piston surrounded by a pressure axis-positionable-and-radially-expansible metallic sealing ring for sealing against pressure leaks through gaps between said body and one of said bonnets, a first hinge plate for supporting on said body a first pair of said bonnets operating with said first pair of rams to permit said supported first pair of bonnets to be unbolted and swung apart from said body in a direction toward said first plate, a second hinge plate for supporting on said body a second pair of bonnets operating with said second pair of rams to permit said supported second pair of bonnets to be unbolted and swung apart from said body in a direction toward said second plate, and each of said hinge plates including a manifold with a positionable telescoping sub and a spring on one side for balanced application of closing and opening hydraulic fluid to ports in the supported bonnets leading to the respective motivating pistons of the rams operating therein.

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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Low profile and lightweight high pressure blowout preventer 원문보기

초록 ▼

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Low profile and lightweight high pressure blowout preventer 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (77)

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