发明名称 |
MULTI-SHOT TUBING PERFORATOR |
摘要 |
A perforator apparatus for repeated punching of holes at a multiple of selected locations in tubing of a well bore. The apparatus is activated for repeated punching operations by a fluid control valve mechanism that controls opposed directional movement of a piston connected to a punch of the perforator apparatus. |
申请公布号 |
WO03036028(A3) |
申请公布日期 |
2003.12.11 |
申请号 |
WO2002US31583 |
申请日期 |
2002.10.18 |
申请人 |
VARCO I/P, INC |
发明人 |
MARSH, BRENT;PARKER, ROBERT;POLLOCK, TIMOTHY, DAVID |
分类号 |
E21B43/112 |
主分类号 |
E21B43/112 |
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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