发明名称 Wire lock expandable connection
摘要 The present invention generally relates to a connector arrangement for connecting a first tubular to a second tubular. In particular, the present invention relates to methods and apparatus for connecting the tubulars in such a way that the connection is prevented from becoming unmade in response to expansion of the tubulars. A connector mechanically mates a box end and a pin end of the tubulars together to form the connection. Additionally, mating castellations, surface finishes on the pin end and the box end, torque screws, and a variable pitch groove can provide resistance to relative rotation between the tubulars at the connection.
申请公布号 US6981547(B2) 申请公布日期 2006.01.03
申请号 US20020313920 申请日期 2002.12.06
申请人 WEATHERFORD/LAMB, INC. 发明人 MAGUIRE PATRICK G.;HIRTH DAVID E.
分类号 E21B17/043;E21B43/10 主分类号 E21B17/043
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