发明名称 Downhole anchoring tools conveyed by non-rigid carriers
摘要 <p>An apparatus and method provides an anchor device for use in a wellbore that comprises an actuator assembly responsive to an actuating signal, an operator coupled to the actuator assembly, and an engagement member moveable to a set position by the operator when actuated by the actuator assembly to set the anchor device. The anchor device may be employed in various tool strings, such as a perforating tool string. In one arrangement, the anchor device provides an automated retraction mechanism that is activated after a predetermined delay. In another arrangement, a retract signal may be supplied to activate the retraction mechanism.</p>
申请公布号 GB2369639(B) 申请公布日期 2004.02.18
申请号 GB20020000059 申请日期 2000.06.27
申请人 * SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 SIMON L * FARRANT;JERRY D * CAMPBELL;JAMES S * ALMAGUER;KUO-CHIANG * CHEN
分类号 E21B23/01;E21B23/04;E21B31/107;E21B31/113;E21B43/116;E21B47/12;(IPC1-7):E21B23/01 主分类号 E21B23/01
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