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    • 131. 发明授权
    • Anti-balling coating on drill bits and downhole tools
    • 钻头和井下工具上的防球涂层
    • US09085703B2
    • 2015-07-21
    • US13652148
    • 2012-10-15
    • William W. KingVamsee Chintamaneni
    • William W. KingVamsee Chintamaneni
    • C09D7/12E21B41/00E21B10/00E21B10/46
    • C09D7/40C08K3/14C08K2003/0887C09D7/61C09D175/04E21B10/00E21B10/46E21B41/00
    • A coating that includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten and tungsten carbide. The metal inclusions range between about five percent by weight to about fifty percent by weight. A downhole tool that includes a body, a shank positioned at one end of the body, at least one cutter coupled to the body, and a coating coupled to at least a portion of one or more of the body or the shank. The coating includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten, tungsten carbide, and aluminum. The metal inclusions range between about five percent by weight to about fifty percent by weight. An intermediate coating is optionally disposed between at least a portion of the coating and at least one of the body or the shank.
    • 包括多异氰酸酯化合物和选自钨和碳化钨中的至少一种金属夹杂物的涂层。 金属夹杂物的重量在约5%至约50%之间。 一种井下工具,其包括主体,位于所述主体的一端的柄,连接到所述主体的至少一个切割器,以及耦合到所述主体或所述柄中的一个或多个的至少一部分的涂层。 涂层包括多异氰酸酯化合物和选自钨,碳化钨和铝的至少一种金属夹杂物。 金属夹杂物的重量在约5%至约50%之间。 中间涂层任选地设置在涂层的至少一部分与主体或柄之中的至少一个之间。
    • 137. 发明申请
    • Anti-Balling Coating On Drill Bits And Downhole Tools
    • 钻头和井下工具防滚涂
    • US20140102809A1
    • 2014-04-17
    • US13652148
    • 2012-10-15
    • William W. KingVamsee Chintamaneni
    • William W. KingVamsee Chintamaneni
    • E21B10/46C09D7/12
    • C09D7/40C08K3/14C08K2003/0887C09D7/61C09D175/04E21B10/00E21B10/46E21B41/00
    • A coating that includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten and tungsten carbide. The metal inclusions range between about five percent by weight to about fifty percent by weight. A downhole tool that includes a body, a shank positioned at one end of the body, at least one cutter coupled to the body, and a coating coupled to at least a portion of one or more of the body or the shank. The coating includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten, tungsten carbide, and aluminum. The metal inclusions range between about five percent by weight to about fifty percent by weight. An intermediate coating is optionally disposed between at least a portion of the coating and at least one of the body or the shank.
    • 包括多异氰酸酯化合物和选自钨和碳化钨中的至少一种金属夹杂物的涂层。 金属夹杂物的重量在约5%至约50%之间。 一种井下工具,其包括主体,位于所述主体的一端的柄,连接到所述主体的至少一个切割器,以及耦合到所述主体或所述柄中的一个或多个的至少一部分的涂层。 涂层包括多异氰酸酯化合物和选自钨,碳化钨和铝的至少一种金属夹杂物。 金属夹杂物的重量在约5%至约50%之间。 中间涂层任选地设置在涂层的至少一部分与主体或柄之中的至少一个之间。