发明名称 Wellhead seal assembly
摘要 A seal assembly for sealing between wellhead members in a wellhead, the assembly may include a seal element and a lockdown member. The seal assembly is attachable to either one of the wellhead members by coupling the lockdown member to a locking surface on the wellhead member. The lockdown member and locking surface may include corresponding profiles for mating engagement thereby preventing relative movement between the wellhead member and seal assembly.
申请公布号 US8186426(B2) 申请公布日期 2012.05.29
申请号 US20080332975 申请日期 2008.12.11
申请人 NELSON JOHN E.;VETCO GRAY INC. 发明人 NELSON JOHN E.
分类号 E21B19/00 主分类号 E21B19/00
代理机构 代理人
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