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公开(公告)号:US20090114448A1
公开(公告)日:2009-05-07
申请号:US11933954
申请日:2007-11-01
IPC分类号: E21B7/28
CPC分类号: E21B10/34
摘要: An expandable downhole tool for use in a drilling assembly positioned within a wellbore includes a tool body having an axial flowbore extending therethrough and a moveable arm. The moveable arm includes a roller structure including cutters and rotatably mounted on the moveable arm. The moveable arm is configured to move outwardly in response to actuation of the expandable downhole tool.
摘要翻译: 用于位于井眼内的钻井组件中的可扩展井下工具包括具有延伸穿过其中的轴向流动孔和可移动臂的工具主体。 可动臂包括一个包括切割器并可旋转地安装在可移动臂上的滚子结构。 可移动臂被配置为响应于可扩展井下工具的致动向外移动。