发明名称 Downhole anchoring tools conveyed by non-rigid carriers
摘要 An apparatus and method provides an anchoring apparatus for use in a wellbore that comprises a gripping assembly and an actuation assembly. In one arrangement, the actuation assembly includes a motor and a module having at least a compressible element (e.g., a hydraulic module) between the motor and the gripping assembly. Upon activation, the motor actuates the hydraulic module to cause activation of the gripping assembly. In one arrangement, the anchoring apparatus is designed to pass through a tubing or other restriction in the wellbore. When in the retracted state, the gripping assembly of the anchoring apparatus has an outer diameter that is smaller than an inner diameter of the tubing. When in the expanded state, the gripping assembly of the anchoring apparatus has an outer diameter than is substantially the same as the inner diameter of the liner to enable engagement of the gripping assembly against the liner.
申请公布号 US6651747(B2) 申请公布日期 2003.11.25
申请号 US20010008761 申请日期 2001.11.08
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 CHEN KUO-CHIANG;ALMAGUER JAMES S.;FARRANT SIMON L.
分类号 E21B23/01;E21B23/04;E21B31/107;E21B31/113;E21B43/116;E21B47/12;(IPC1-7):E21B23/00 主分类号 E21B23/01
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