| 发明名称 |
DOWNHOLE ACTUATION BALL, METHODS AND APPARATUS |
| 摘要 |
An actuation ball for a downhole tool, the actuation ball includes an outer annular body encircling a bore; and a core releasably installed in the bore, such that the core can be removed to permit back flow through the bore. |
| 申请公布号 |
CA2935175(A1) |
申请公布日期 |
2016.12.30 |
| 申请号 |
CA20162935175 |
申请日期 |
2016.06.30 |
| 申请人 |
PACKERS PLUS ENERGY SERVICES INC. |
发明人 |
VAN PETEGEM, RONALD;EMERSON, JOHN LEE |
| 分类号 |
E21B23/10;E21B33/068;E21B34/14 |
主分类号 |
E21B23/10 |
| 代理机构 |
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代理人 |
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