发明名称 METHOD AND APPARATUS FOR A WELL EMPLOYING THE USE OF AN ACTIVATION BALL
摘要 A system includes a tubular string that is adapted to be deployed downhole in a well and an activation ball. The activation ball is adapted to be deployed in the tubular string to lodge in a seat of the string. The ball includes a spherical body, which is formed from a metallic material that has a specific gravity less than about 2.0.
申请公布号 US2012006561(A1) 申请公布日期 2012.01.12
申请号 US201113179974 申请日期 2011.07.11
申请人 JOHNSON JOSHUA;WOLF JOHN CHRYSOSTOM 发明人 JOHNSON JOSHUA;WOLF JOHN CHRYSOSTOM
分类号 E21B34/06;E21B34/00 主分类号 E21B34/06
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