发明名称 DRILL BIT WITH A FORCE APPLICATION USING A MOTOR AND SCREW MECHANISM FOR CONTROLLING EXTENSION OF A PAD IN THE DRILL BIT
摘要 A drill bit and method of drilling a wellbore. The drill bit includes a pad configured to extend and retract from a surface of the drill bit, and a force application device configured to extend and retract the pad. The force application device includes a screw driven by an electric motor that linearly moves a drive unit to extend and retract the pad from the drill bit surface. The drill bit may be conveyed by a drill string and the pad may be extended from the drill bit face to drill the wellbore.
申请公布号 EP2880246(A1) 申请公布日期 2015.06.10
申请号 EP20130825665 申请日期 2013.07.30
申请人 BAKER HUGHES INCORPORATED 发明人 SCHWEFE, THORSTEN;RAZ, DAN;RINBERG, GREGORY
分类号 E21B7/04;E21B4/00 主分类号 E21B7/04
代理机构 代理人
主权项
地址