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公开(公告)号:EP3535474B1
公开(公告)日:2022-01-05
申请号:EP17867604.5
申请日:2017-11-01
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公开(公告)号:EP3724443A1
公开(公告)日:2020-10-21
申请号:EP18888887.9
申请日:2018-12-14
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公开(公告)号:EP3158162B1
公开(公告)日:2020-08-26
申请号:EP15731038.4
申请日:2015-06-22
IPC分类号: E21B23/00 , E21B33/124 , E21B33/127 , E21B34/14 , E21B43/267
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公开(公告)号:EP3683398A1
公开(公告)日:2020-07-22
申请号:EP20158801.9
申请日:2010-08-04
摘要: A drill bit (500; 600; 800; 950) is provided that in one embodiment may include a force application device (960) on a drill bit body (510; 610; 810), wherein the force application device (960) includes a force application member (502; 602; 802; 962) pivotally coupled to the drill bit (500; 600; 800; 950) and configured to extend from the drill bit body (510; 610; 810) to apply force on a wellbore wall when the drill bit (500; 600; 800; 950) is used to drill a wellbore (910), and an actuator configured to actuate the force application member (502; 602; 802; 962) to apply force on a wellbore wall during drilling of the wellbore (910).
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公开(公告)号:EP2675985B1
公开(公告)日:2020-05-13
申请号:EP12747110.0
申请日:2012-01-25
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公开(公告)号:EP3216028B1
公开(公告)日:2020-03-25
申请号:EP15797211.8
申请日:2015-11-03
申请人: ABB Schweiz AG
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公开(公告)号:EP3585973A1
公开(公告)日:2020-01-01
申请号:EP18757330.8
申请日:2018-02-23
申请人: Hunting Titan, Inc.
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公开(公告)号:EP2665884B1
公开(公告)日:2019-11-13
申请号:EP12736705.0
申请日:2012-01-19
发明人: GIBSON, Kenneth , HEKELAAR, Stephen
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公开(公告)号:EP3532695A1
公开(公告)日:2019-09-04
申请号:EP17865150.1
申请日:2017-10-25
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