[특허]Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer

Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-055/00
출원번호	US-0314054 (1994-09-28)
발명자 / 주소	Smith Leslie D. (Fritch TX)
출원인 / 주소	J. M. Huber Corporation (Edison NJ 02)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

A wellhead flange assembly 12 is provided for interconnecting the threaded end of an upwardly projecting screwed wellhead 16 with a lower flange of the blowout preventer 24. The flange assembly comprises a threaded adapter 40 including a thin-walled portion 54, a flange support portion 56, and an upper stop portion 52. A wellhead flange 42 includes a plurality of bolt holes 44 and an upper surface 51 for engagement with the lower flange of the blowout preventer. A plurality of securing members 48 are provided for selectively connecting and disconnecting the wellhead flange 42 and the threaded adapter 40. An adapter-to-flange seal 60 is provided for sealing engagement between the threaded adapter 40 and the wellhead flange 42. According the method of the invention, the threaded adapter may be easily heated to facilitate removal from the screwed wellhead, or may be cut off the screwed wellhead without damaging the screwed wellhead, thereby permitting the reuse of the wellhead flange on a new well.

대표청구항 ▼

A wellhead flange assembly for interconnecting a threaded end of an upwardly projecting screwed wellhead with a lower flange of a blowout preventer positioned above the screwed wellhead, the flange assembly comprising: a threaded adapter including a thin-walled portion having an outer surface and radially internal threads for threaded engagement with the threaded end of the upwardly projecting screwed wellhead, a flange support portion projecting radially outward from the thin-walled portion, and an upper stop portion projecting radially inward from the thin-walled portion for engagement with the screwed wellhead; a wellhead flange including internal surface for engagement with the outer surface of the thin-walled portion, a plurality of bolt holes passing through the wellhead flange and arranged circumferentially about the wellhead flange, and an upper surface for engagement with the lower flange of the blowout preventer, the wellhead flange being supported on the flange support portion of the threaded adapter; and a plurality of securing members for engaging the wellhead flange and threaded adapter for selectively connecting and disconnecting the wellhead flange and the threaded adapter.

이 특허를 인용한 특허 (30)

Turner, Herbert D., Abandonment cap and method of sealing production wells.
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Redden, David B.; McCormack, Frank; Huskins, Larry E., Backup wellhead blowout prevention system and method.
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Piedboeuf, Wolfgang; Ruda, Thomas, Connecting system.
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McGuire, Bob; Dallas, L. Murray, Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use.
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McGuire,Bob; Dallas,L. Murray, Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use.
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McGuire,Bob; Dallas,L. Murray, Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use.
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McGuire,Bob; Dallas,L. Murray, Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use.
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Dusevic, Tony, Flange connector.
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Abel,Leo William, High pressure adapter assembly for use on blow out preventers.
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Abel,Leo William, High pressure adaptor assembly for use on blow out preventors.
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Dallas, L. Murray; McGuire, Bob; Artherholt, Danny Lee, High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same.
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Dallas, L. Murray; McGuire, Bob; Artherholt, Danny Lee, High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same.
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Dallas,L. Murray; McGuire,Bob; Artherholt,Danny Lee, High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same.
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Bosi, David M.; Reeves, David W., Insulated transition spool apparatus.
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Ireland, Steven, Large diameter fiberglass tank adapter.
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Crawford, Charles K, Minimal thickness, double-sided flange for insertion between two ultra-high vacuum flanges.
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Crawford, Charles K., Minimal thickness, double-sided flanges for ultra-high vacuum components.
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Kotrla, Johnnie; Stevenson, Ross; Hodges, Vallie, Multi-pressure flange connection.
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Russell, David D.; Russell, Robert, Supplemental lid for containment sump.
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Kotrla, Johnnie, Tunable floating seal insert.
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Kotrla, Johnnie, Tunable floating seal insert.
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Hall, David M., Turbocharger compressor cover with convertible outlet connection.
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Reynolds, Jr., Harris A.; Huff, Philip A.; Pruden, Keith, Wedge thread with sealing metal.
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Cain, Brandon Matthew; Travis, Todd; Bilyeu, Michael L.; Altman, Gordon Ronnie; Willard, Steve; Davidson, Carl Edwin; Rogers, John, Wellhead completion assembly capable of versatile arrangements.
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Cain, Brandon Matthew; Travis, Todd; Bilyeu, Michael L.; Altman, Gordon Ronnie; Willard, Steve; Davidson, Carl Edwin; Rogers, John A.; Menard, Robert Scott, Wellhead completion assembly capable of versatile arrangements.
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Cain, Brandon Matthew; Travis, Todd; Bilyeu, Michael L.; Altman, Gordon Ronnie; Willard, Steve; Davidson, Carl Edwin; Rogers, John; Menard, Robert Scott, Wellhead completion assembly capable of versatile arrangements.
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Duhn,Rex E.; Meek,Robert K., Wellhead isolation tool and method of fracturing a well.
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Duhn, Rex E.; Meek, Robert K., Wellhead isolation tool and wellhead assembly incorporating the same.
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Duhn, Rex E.; Meek, Robert K., Wellhead isolation tool and wellhead assembly incorporating the same.
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Duhn, Rex E.; Meek, Robert K., Wellhead isolation tool and wellhead assembly incorporating the same.
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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

Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer 원문보기

초록 ▼

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Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer 원문보기

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이 특허를 인용한 특허 (30)

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