| 发明名称 |
Single-trip perforating gun assembly and method |
| 摘要 |
Disclosed is an improved apparatus and method for perforating subterranean wells having a centralizer changeable from a running condition to a collapsed condition.
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| 申请公布号 |
US6012525(A) |
申请公布日期 |
2000.01.11 |
| 申请号 |
US19970978859 |
申请日期 |
1997.11.26 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
BURLESON, JOHN;HENKE, JOE |
| 分类号 |
E21B17/10;E21B43/116;(IPC1-7):E21B43/11 |
主分类号 |
E21B17/10 |
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