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 代理人
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