发明名称 |
DRILL BIT WITH A FORCE APPLICATION DEVICE USING A LEVER DEVICE FOR CONTROLLING EXTENSION OF A PAD FROM A DRILL BIT SURFACE |
摘要 |
In one aspect, a drill bit is disclosed that in one embodiment 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, wherein the force application device includes a force action member that includes a lever action device configured to extend and retract the pad from the drill bit surface. In another aspect, a method of drilling a wellbore is provided that in one embodiment includes: conveying a drill string having a drill bit at an end thereof, wherein the drill bit includes a pad configured to extend and retract from a surface of the drill bit and a force application device that includes a lever action device configured to extend and retract the pad from the surface of the drill bit; and rotating the drill bit to drill the wellbore. |
申请公布号 |
EP2880245(A4) |
申请公布日期 |
2016.06.15 |
申请号 |
EP20130825413 |
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;E21B19/24 |
主分类号 |
E21B7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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