发明名称 Forankringsverktøy og fremgangsmåte for fiksering av et ekspanderbart anker
摘要 <p>An expandable downhole anchoring tool positionable within a wellbore for use in cooperation with drilling equipment comprises a body including a plurality of angled channels formed into a wall thereof, and a plurality of moveable slips disposed in the same radial plane around the body, wherein the plurality of moveable slips are hydraulically translatable along the plurality of angled channels between a collapsed position and an expanded position. A method of setting an expandable anchor within a wellbore comprises running the anchor into the wellbore in a collapsed position, and expanding the anchor into gripping engagement with the wellbore, wherein the anchor is adapted to expand up to at least 1.5 times a collapsed diameter of the anchor.</p>
申请公布号 NO336064(B1) 申请公布日期 2015.05.04
申请号 NO20050001105 申请日期 2005.03.01
申请人 SMITH INTERNATIONAL INC 发明人 CAMPBELL JOHN E;DEWEY CHARLES H;CRUICKSHANK BRIAN WILLIAM
分类号 E21B23/01;E21B;E21B7/08;E21B23/04;E21B43/12;E21B43/14;E21B43/32 主分类号 E21B23/01
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