| 发明名称 |
Activation of downhole tools |
| 摘要 |
A primarily electronically set permanent or retrievable downhole tool having a hydraulic contingency arrangement to activate the downhole tool in the conventional way in the event electronic communication fails. |
| 申请公布号 |
AU1249297(A) |
申请公布日期 |
1997.09.04 |
| 申请号 |
AU19970012492 |
申请日期 |
1997.02.04 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
JAMES C DOANE;WILLIAM D HENDERSON;HENRY J JORDAN |
| 分类号 |
E21B23/00;E21B23/04;E21B33/1295 |
主分类号 |
E21B23/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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