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1. 发明申请

WO0029709A9 ROTARY CONE DRILL BIT HAVING A BIT BODY WITH INTEGRAL STABILIZERS 审中-公开
标题翻译：具有整体稳定器的旋转圆锥钻头
公开(公告)号：WO0029709A9
公开(公告)日：2001-12-06
申请号：PCT/US9926491
申请日：1999-11-10
申请人： DRESSER IND , DAHLEM JAMES S , KNECHT KARL DON
发明人： DAHLEM JAMES S , KNECHT KARL DON
IPC分类号： E21B17/10 , E21B10/08
CPC分类号： E21B17/1092
摘要： A rotary cone drill bit for forming a borehole having a bit body with a plurality of stabilizer pads formed as integral components thereof. The bit body includes an upper portion adapted for connection to a drill string. A number of support arms preferably extend from a lower portion of the bit body. A number of cutter cone assemblies equal to the number of support arms are rotatably mounted on respective support arms and project generally downwardly and inwardly from each support arm. The stabilizer pads project radially outward from the bit body and are disposed intermediate adjacent support arms. Both the stabilizer pads and the support arms preferably have surfaces that form a fluid flow channel therebetween to direct drilling fluids and cuttings to flow upward in the borehole. Layer of hardfacing may be disposed on selected portions of each stabilizer pad. One or more inserts may be installed in selected portions of each stabilizer pad.
摘要翻译：一种用于形成钻孔的旋转锥形钻头，其具有形成为其整体部件的多个稳定器垫的钻头体。钻头体包括适于连接到钻柱的上部。多个支撑臂优选地从钻头体的下部延伸。等于支撑臂数目的多个切割锥体组件可旋转地安装在相应的支撑臂上并且从每个支撑臂大致向下并向内突出。稳定器垫从钻头体径向向外突出并且设置在相邻的支撑臂的中间。稳定器垫和支撑臂优选地具有在其间形成流体流动通道的表面，以引导钻井液和钻屑在钻孔中向上流动。可以在每个稳定器垫的选定部分上设置表面硬化层。一个或多个插入件可以安装在每个稳定器垫的选定部分中。

2. 发明申请

WO0029709A2 ROTARY CONE DRILL BIT HAVING A BIT BODY WITH INTEGRAL STABILIZERS 审中-公开
标题翻译：旋转锥钻头钻头具有整体稳定器的钻头体
公开(公告)号：WO0029709A2
公开(公告)日：2000-05-25
申请号：PCT/US9926491
申请日：1999-11-10
申请人： DRESSER IND , DAHLEM JAMES S , KNECHT KARL DON
发明人： DAHLEM JAMES S , KNECHT KARL DON
IPC分类号： E21B17/10 , E21B10/00
CPC分类号： E21B17/1092
摘要： A rotary cone drill bit for forming a borehole having a bit body with a plurality of stabilizer pads formed as integral components thereof. The bit body includes an upper portion adapted for connection to a drill string. A number of support arms preferably extend from a lower portion of the bit body. A number of cutter cone assemblies equal to the number of support arms are rotatably mounted on respective support arms and project generally downwardly and inwardly from each support arm. The stabilizer pads project radially outward from the bit body and are disposed intermediate adjacent support arms. Both the stabilizer pads and the support arms preferably have surfaces that form a fluid flow channel therebetween to direct drilling fluids and cuttings to flow upward in the borehole. Layer of hardfacing may be disposed on selected portions of each stabilizer pad. One or more inserts may be installed in selected portions of each stabilizer pad.
摘要翻译：一种用于形成具有钻头本体的钻孔的旋转锥形钻头，所述钻头具有形成为其整体部件的多个稳定器衬垫。钻头本体包括适于连接到钻柱的上部。多个支撑臂优选从钻头本体的下部延伸。与支撑臂的数量相等的多个刀具锥体组件可旋转地安装在相应的支撑臂上并且从每个支撑臂大体向下和向内突出。稳定垫从钻头体径向向外伸出并设置在相邻支撑臂的中间。稳定器衬垫和支撑臂均优选具有在其间形成流体流动通道的表面，以引导钻井流体和钻屑在井眼中向上流动。硬面层可以设置在每个稳定垫的选定部分上。一个或多个插入件可以安装在每个稳定器垫的选定部分中。

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