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 wellbor e 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 t he 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, th e gripping assembly of the anchoring apparatus has an outer diameter that is smaller th an 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 CA2668535(A1) 申请公布日期 2003.05.08
申请号 CA20022668535 申请日期 2002.11.05
申请人 SCHLUMBERGER CANADA LIMITED 发明人 ALMAGUER, JAMES S.;FARRANT, SIMON L.;CHEN, KUO-CHIANG
分类号 E21B23/01;E21B43/116;E21B43/119;E21B47/10 主分类号 E21B23/01
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