High-pressure threaded union with metal-to-metal seal, and metal ring gasket for same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-021/00
F16L-017/00
출원번호
UP-0334012
(2008-12-12)
등록번호
US-7654585
(2010-03-31)
발명자
/ 주소
Dallas, L. Murray
McGuire, Bob
Artherholt, Danny Lee
출원인 / 주소
Stinger Wellhead Protection, Inc.
대리인 / 주소
Nelson Mullins Riley & Scarborough, LLP
인용정보
피인용 횟수 :
3인용 특허 :
53
초록▼
A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maint
A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
대표청구항▼
We claim: 1. A threaded union for providing a fluid-tight, metal-to-metal seal between respective mating ends of first and second subcomponents of a fluid conduit, the threaded union comprising: a single nut that interconnects the first and second mating ends; the mating end of the first subcompone
We claim: 1. A threaded union for providing a fluid-tight, metal-to-metal seal between respective mating ends of first and second subcomponents of a fluid conduit, the threaded union comprising: a single nut that interconnects the first and second mating ends; the mating end of the first subcomponent including a first annular groove that mates with a complementary second annular groove in the mating end of the second subcomponent, said complementary first and second annular grooves respectively having a sloped annular outer face that is convergent to a respective planar annular bottom surface of the respective annular grooves; and a metal ring gasket received in the respective annular grooves when the mating ends are interconnected, the metal ring gasket having a central axis, a single planar top face, a single planar bottom face that is parallel to the planar top face, a cylindrical outer face that is coaxial with the central axis and perpendicular to the top and bottom faces, and single annular converging sloped surfaces between each of the planar top face, the planar bottom face and the cylindrical outer face, the metal ring gasket being oversized with respect to the respective sloped annular outer faces of the annular grooves to an extent that the metal ring gasket is elastically deformed, without plastic deformation, by contact with the respective sloped annular outer faces of the respective first and second annular grooves and the respective annular converging sloped surfaces of the metal ring gasket to provide the fluid-tight seal between the first and second subcomponents after the first and second subcomponents are interconnected by the single nut. 2. The threaded union as claimed in claim 1 wherein the metal ring gasket is oversized by about 0.003″ with respect to the respective sloped annular outer faces of the respective annular grooves. 3. The threaded union as claimed in claim 1 further comprising a gap of at least 0.003″ between an inner side of the metal ring gasket and inner faces of the respective annular grooves after the mating ends of the first and second subcomponents are interconnected by the single nut. 4. The threaded union as claimed in claim 1 wherein the nut comprises a main body of a single piece construction. 5. The threaded union as claimed in claim 4 wherein the main body comprises an upper annular shoulder that extends radially inwardly from a top of the main body, the upper annular shoulder abutting a radial flange of an annular, multi-piece adapter collar having an inner diameter dimensioned to encircle an outer surface of the second subcomponent and rest on an annular shoulder of the second subcomponent adjacent the mating end of the second subcomponent, and when the single nut engages threads on the first subcomponent and torque is applied to the main body, the upper annular shoulder forces the adapter collar against the annular shoulder of the second subcomponent, thereby urging the mating end of the second subcomponent towards the mating end of the first subcomponent to compress and elastically deform the metal ring gasket into the respective annular grooves. 6. A threaded union for providing a fluid-tight, metal-to-metal seal between first and second subcomponents of a fluid conduit having mating ends interconnected by a single nut, the threaded union comprising: an annular groove in the respective mating ends of the first and second subcomponents, each of the respective annular grooves having a sloped annular outer face that is convergent to a planar annular bottom surface of the groove; and a metal ring gasket received in the respective annular grooves, the metal ring gasket comprising a central axis, a single planar top face, a single planar bottom face that is parallel to the planar top face, a cylindrical outer face that is coaxial with the central axis and perpendicular to the top and bottom faces, and single annular converging sloped surfaces between each of the planar top and bottom faces and the cylindrical outer face, the metal ring gasket being oversized with respect to the first and second sloped outer faces of the annular grooves to an extent that the metal ring gasket is elastically deformed, without any plastic deformation, by contact between only the annular converging sloped surfaces of the metal ring gasket and the respective first and second sloped annular outer faces of the respective first and second annular grooves when the first and second subcomponents are interconnected by the nut, and after the mating ends of the first and second subcomponents are drawn together by the nut, gaps remain between the metal ring gasket and each of: inner surfaces of the respective annular grooves and the respective planar bottom faces of the respective annular grooves. 7. The threaded union as claimed in claim 6 wherein the metal ring gasket is oversized by about 0.003″ with respect to the sloped annular outer faces of the respective annular grooves. 8. The threaded union as claimed in claim 6 wherein the metal ring gasket is hexagonal in cross-section. 9. The threaded union as claimed in claim 6 wherein the annular converging sloped surfaces between each of the planar top and bottom faces and the cylindrical outer face of the metal ring gasket are sloped at an angle of about 23° with respect to the cylindrical outer face. 10. The threaded union as claimed in claim 6 wherein the mating end of the first subcomponent comprises a pin end received in a socket of the mating end of the second subcomponent, the annular groove in the first mating end is located on the pin end and the annular groove in the second mating end is located in a bottom of the socket. 11. A threaded union for providing a fluid-tight, metal-to-metal seal between first and second subcomponents that are joined by a single nut to form a fluid conduit, the threaded union comprising: a first annular groove in a pin end of the first subcomponent, the first annular groove mating with a complementary second annular groove in a socket end of the second subcomponent that receives the pin end of the first subcomponent, said complementary first and second annular grooves respectively having sloped annular outer faces that are respectively convergent to a planar annular bottom surface of the respective annular grooves; and a metal ring gasket received in the respective annular grooves, the metal ring gasket having a central axis, a single planar top face, a single planar bottom face that is parallel to the single planar top face, a cylindrical outer face that is coaxial with the central axis and perpendicular to the top and bottom faces, and a single annular converging sloped surface between each of the planar top face, the planar bottom face and the cylindrical outer face, the metal ring gasket being oversized with respect to the first and second sloped outer faces of the respective annular grooves to an extent that the metal ring gasket is elastically deformed, without plastic deformation, by contact between only the annular converging sloped surfaces of the metal ring gasket and the respective first and second sloped annular outer faces of the respective first and second annular grooves after the mating ends of the first and second subcomponents are drawn together by the nut. 12. The threaded union as claimed in claim 11 wherein the metal ring gasket is compressed by about 0.003″ when the mating ends of the first and second subcomponents are drawn together by the nut. 13. The threaded union as claimed in claim 12 wherein the metal ring gasket has a cylindrical inner face that is coaxial with the central axis and adjoins the single planar top face and the single planar bottom face. 14. The threaded union as claimed in claim 11 wherein the metal ring gasket is hexagonal in cross-section. 15. The threaded union as claimed in claim 11 wherein the metal ring gasket is octagonal in cross-section. 16. The threaded union as claimed in claim 11 wherein the annular converging sloped surfaces of the metal ring gasket are sloped at an angle of about 23° with respect to the cylindrical outer face. 17. The threaded union as claimed in claim 11 wherein the single nut comprises a main body having an upper annular shoulder that extends radially inwardly from a top of the main body, the upper annular shoulder abutting a radial flange of an annular, multi-piece adapter collar having an inner diameter dimensioned to encircle an outer surface of the second subcomponent and rest on an annular shoulder of the second subcomponent adjacent the mating end of the second subcomponent, and when the single nut engages threads on the first subcomponent and rotational torque is applied to the main body, the upper annular shoulder forces the adapter collar against the annular shoulder of the second subcomponent, thereby urging the mating end of the second subcomponent towards the mating end of the first subcomponent to compress and elastically deform the metal ring gasket into the respective annular grooves.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (53)
McGuire,Bob; Dallas,L. Murray, Adapters for double-locking casing mandrel and method of using same.
McLeod Roderick D. (5104-125 Street Edmonton ; Alberta CAX T6H 3V5) Roesch Albert (28 Parsons Close Red Deer ; Alberta CAX), High pressure adapter for well-heads.
Ganzinotti, II, Edward Leonardo; Ganzinotti, III, Edward Leonardo; Shanley, Brent Phillip; Couchot, Matthew Anthony, Hydrocarbon well completion system and method of completing a hydrocarbon well.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.