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1. 发明申请

WO2007091054A1 IMPROVEMENTS IN AND RELATING TO DOWNHOLE TOOLS 审中-公开
标题翻译：改进和相关的工具
公开(公告)号：WO2007091054A1
公开(公告)日：2007-08-16
申请号：PCT/GB2007/000415
申请日：2007-02-08
申请人： THORNTON, Thomas, John, Oliver
发明人： THORNTON, Thomas, John, Oliver
IPC分类号： E21B17/02 , E21B17/08 , E21B17/10
CPC分类号： E21B17/1085
摘要： There is disclosed an improved tool, e.g. adapted to comprise at least part of a well completion assembly or well drilling assembly. The invention provides an improved downhole tool (or device) having a friction factor of the order of ten times less than those known from the prior art, e.g. of the order of 0.100 or less. Accordingly the invention provides a downhole tool (10; 10a;10b;10c;10d) , at least part of the downhole tool or device being made from Tungsten Disulphide (Tungsten Disulfide) . In a disclosed embodiment the at lest part comprises at least one surface of the downhole tool, the at least one surface comprising a bearing surface, e.g. a journal bearing surface and/or a thrust bearing surface.
摘要翻译：公开了一种改进的工具，例如适于包括完井组件或钻井组件的至少一部分。本发明提供了一种改进的井下工具（或装置），其具有比现有技术已知的摩擦系数小10倍的摩擦系数。大概在0.100以下。因此，本发明提供了一种井下工具（10; 10a; 10b; 10c; 10d），所述井下工具或装置的至少一部分由二硫化钨（二硫化钨）制成。在公开的实施例中，最小部分包括井下工具的至少一个表面，该至少一个表面包括承载表面，例如，轴颈轴承表面和/或推力轴承表面。

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