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 within the protection fluid chamber, and a moveable mechanism in functional connection with the protection fluid chamber in a manner to expel a portion of the protection fluid when the moveable mechanism moves.
申请公布号 US2005056429(A1) 申请公布日期 2005.03.17
申请号 US20040710492 申请日期 2004.07.15
申请人 SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 DU MICHAEL HUI;READ DENNIS M.
分类号 E21B34/00;E21B34/12;E21B41/00;(IPC1-7):E21B37/08;E21B21/00;E21B31/08 主分类号 E21B34/00
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