发明名称 Communication joint for use in a well
摘要 A communication joint for use in a well is disclosed. The communication joint includes a one-piece tubular body having an exterior surface adapted to form a slidable fluid seal with a wellhead member of the well. The tubular body includes first and second fluid conduits extending axially along and positioned in the tubular body, each conduit providing a fluid passageway independent of the other fluid conduit. Preferably, the first and second fluid conduits extend axially above and below the exterior surface of the body.
申请公布号 US4623020(A) 申请公布日期 1986.11.18
申请号 US19840654344 申请日期 1984.09.25
申请人 CACTUS WELLHEAD EQUIPMENT CO., INC. 发明人 NICHOLS, RANDY P.
分类号 E21B33/047;(IPC1-7):E21B33/03;E21B33/038 主分类号 E21B33/047
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