发明名称 Drill bit with adjustable steering pads
摘要 In an aspect, a drill bit is provided that includes at least one blade profile having a side section and an adjustable pad on the side section that is configured to extend from the side section to cause the drill bit to alter a drilling direction when the drill bit is used to drill a wellbore. In addition, the drill bit may also include a fluid line configured to supply a fluid under pressure to the pad to cause the pad to extend from the side section.
申请公布号 US7971662(B2) 申请公布日期 2011.07.05
申请号 US20080237569 申请日期 2008.09.25
申请人 BAKER HUGHES INCORPORATED 发明人 BEUERSHAUSEN CHAD J.
分类号 E21B7/08 主分类号 E21B7/08
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