发明名称 Metal-to-metal sealing system
摘要 A metal-to-metal sealing element for a wellhead assembly which includes at least first and second adjacent components and first and second generally annular sealing surfaces that are each formed on a corresponding one of the components. The sealing element comprises an annular base, an annular sealing lip which projects radially toward at least one of the first and second sealing surfaces and which comprises a seal retaining groove, a soft metal sealing insert which is disposed within the seal retaining groove and which in use engages the at least one sealing surface, and an annular intermediate portion which extends between the base and the sealing lip. The intermediate portion presses the sealing insert against the at least one sealing surface in an interference fit relationship.
申请公布号 US6869080(B2) 申请公布日期 2005.03.22
申请号 US20030396622 申请日期 2003.03.24
申请人 FMC TECHNOLOGIES, INC. 发明人 JANOFF DWIGHT D.;VICIC JOHN C.;GLIDDEN GREGORY L.;CRAWFORD NEIL C.
分类号 E21B17/02;E21B33/00;E21B33/03;E21B33/04;F16J15/08;F16L23/20;(IPC1-7):F16L21/05 主分类号 E21B17/02
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