发明名称 Casing stabbing guide and method of use thereof
摘要 A system for running a string of casing into a well utilizes a casing gripping assembly. The casing gripping assembly connects to a top drive and has radially movable gripping elements. A pair of links have upper ends pivotally connected to the casing gripping assembly. A casing elevator is mounted below the casing gripping assembly to lower ends of the links. A guide is mounted to the links between the elevator and the casing gripping assembly. The guide has a vertically extending central opening that has a lower portion that defines a flared entrance to the opening.
申请公布号 US8191621(B2) 申请公布日期 2012.06.05
申请号 US20090475133 申请日期 2009.05.29
申请人 SWEENEY DAVID;LITTLEWOOD ALLEN;TESCO CORPORATION 发明人 SWEENEY DAVID;LITTLEWOOD ALLEN
分类号 E21B19/18 主分类号 E21B19/18
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