发明名称 Quick connect wellhead adapter
摘要 A compact well head adapter having a uniform design for a variety of well casing sizes. An annular adapter body includes a lower portion threaded for connection to a well casing, an upper portion threaded for connection to a fluid conductor, and a bore for the transfer of fluid between the casing and the fluid conductor. A removable annular shield is removably connected to the upper portion of the adapter body to protect the upper threaded portion from damage in handling. The lower threaded portion can be varied in size to fit different size well casings and the upper portion remains the same size for connection to the fluid conductor and to the annular shield. The adapter is supported by a swivel to facilitate rotation of the adapter as the adapter is threaded onto the well casing.
申请公布号 US4688632(A) 申请公布日期 1987.08.25
申请号 US19850793393 申请日期 1985.10.31
申请人 FMC CORPORATION 发明人 COOLEY, JR., CLAIBORN
分类号 E21B17/02;E21B19/16;E21B33/03;E21B33/068;F16L55/11;(IPC1-7):F16L55/00;F16L57/00 主分类号 E21B17/02
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