发明名称 WELL TOOL PROTECTION SYSTEM AND METHOD
摘要 The system including a well tool having a housing forming a protection fluid chamber in fluid communication with a discharge port, a protection fluid disposed withi n the protection fluid chamber, and a moveable mechanism in functional connection with the protecti on fluid chamber in a manner to expel a portion of the protection fluid when the moveable mechanism moves.
申请公布号 CA2481757(A1) 申请公布日期 2005.03.15
申请号 CA20042481757 申请日期 2004.09.13
申请人 SCHLUMBERGER CANADA LIMITED 发明人 READ, JR. DENNIS M.;DU, MICHAEL HUI
分类号 E21B34/00;E21B34/12;E21B41/00;(IPC1-7):E21B17/00 主分类号 E21B34/00
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