| 发明名称 |
Remote intervention logic valving method and apparatus |
| 摘要 |
A system of valves in which the valves operate over a designated pressure interval and are arranged to actuate performance of a sequenced set of events by downhole tools with the application of pressure to said valves.
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| 申请公布号 |
US7516792(B2) |
申请公布日期 |
2009.04.14 |
| 申请号 |
US20030628214 |
申请日期 |
2003.07.28 |
| 申请人 |
EXXONMOBIL UPSTREAM RESEARCH COMPANY |
发明人 |
LONNES STEVEN B.;SOREM WILLIAM A. |
| 分类号 |
E21B34/06;E21B34/10;E21B23/04;E21B43/25;E21B43/26;E21B47/12;E21B47/18;F15B13/07 |
主分类号 |
E21B34/06 |
| 代理机构 |
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