| 发明名称 |
APPARATUS FOR CONTROLLING A TOOL HAVING A MANDREL THAT MUST BE STROKED INTO OR OUT OF A WELL |
| 摘要 |
Apparatus for controlling a tool having a mandrel that must be stroked into or out of a well includes an anchor spool and a detachable superstructure. The anchor spool supports the detachable superstructure. The detachable superstructure includes at least two hydraulic cylinders used to stroke the mandrel into or out of the well.
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| 申请公布号 |
CA2421348(A1) |
申请公布日期 |
2004.09.07 |
| 申请号 |
CA20032421348 |
申请日期 |
2003.03.07 |
| 申请人 |
DALLAS, L. MURRAY |
发明人 |
DALLAS, L. MURRAY |
| 分类号 |
E21B33/068;(IPC1-7):E21B23/00;E21B43/16 |
主分类号 |
E21B33/068 |
| 代理机构 |
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代理人 |
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| 主权项 |
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