发明名称 Entry swivel apparatus and method
摘要 An apparatus for use with a wireline on a drilling rig. The apparatus includes a main body having first and second entry ports, and wherein the first entry port is configured to receive the wireline. A bearing nut is operatively attached to the main body. A mandrel is partially disposed within the bearing nut, and wherein the mandrel is capable of rotating. A sleeve, disposed within a receptacle bore, is also included. The sleeve may have an inner conical surface. A method of performing wireline work is also disclosed.
申请公布号 US2007199718(A1) 申请公布日期 2007.08.30
申请号 US20070796938 申请日期 2007.04.30
申请人 发明人 BOYD ANTHONY R.
分类号 E21B19/00 主分类号 E21B19/00
代理机构 代理人
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