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公开(公告)号：EP2558673A2
公开(公告)日：2013-02-20
申请号：EP11769369.7
申请日：2011-04-11
发明人： EDBURY, David Alston , GUERRERO, Jose Victor , MACDONALD, Duncan Charles , NORMAN, Jason B. , ROGERS, James Bryon , SITTON, Donald Ray
摘要： METHODS AND SYSTEMS FOR DRILLING A method of controlling a direction of drilling of the drill string (110) used to form an opening in a subsurface formation (102), comprises varying a speed of the drill string during rotational drilling such that the drill string (110) is at a first speed during a first portion of the rotational cycle and at a second speed during a second portion of the rotational cycle wherein the first speed is higher than the second speed, and wherein operating at the second speed in the second portion of the rotational cycle causes the drill string to change the direction of drilling.
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公开(公告)号：EP2558673B1
公开(公告)日：2019-12-11
申请号：EP11769369.7
申请日：2011-04-11
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公开(公告)号：EP2592224B1
公开(公告)日：2018-09-12
申请号：EP12187635.3
申请日：2011-04-11
发明人： EDBURY, David Alston , GUERRERO, Jose Victor , MACDONALD, Duncan Charles , NORMAN, Jason B. , ROGERS, James Byron , SITTON, Donald Ray
IPC分类号： E21B44/02 , E21B47/00 , E21B7/06 , E21B44/00 , E21B21/01 , E21B44/06 , E21B49/00 , E21B21/08
CPC分类号： E21B21/08 , E21B7/06 , E21B21/01 , E21B37/00 , E21B44/00 , E21B44/02 , E21B44/06 , E21B47/00 , E21B47/0003 , E21B49/005
摘要： METHODS AND SYSTEMS FOR DRILLING A method of controlling a direction of drilling of the drill string (110) used to form an opening in a subsurface formation (102), comprises varying a speed of the drill string during rotational drilling such that the drill string (110) is at a first speed during a first portion of the rotational cycle and at a second speed during a second portion of the rotational cycle wherein the first speed is higher than the second speed, and wherein operating at the second speed in the second portion of the rotational cycle causes the drill string to change the direction of drilling.
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公开(公告)号：EP2592224A2
公开(公告)日：2013-05-15
申请号：EP12187635.3
申请日：2011-04-11
发明人： EDBURY, David Alston , GUERRERO, Jose Victor , MACDONALD, Duncan Charles , NORMAN, Jason B. , ROGERS, James Byron , SITTON, Donald Ray
CPC分类号： E21B21/08 , E21B7/06 , E21B21/01 , E21B37/00 , E21B44/00 , E21B44/02 , E21B44/06 , E21B47/00 , E21B47/0003 , E21B49/005
摘要： A method of automatically picking up a drill bit off the bottom of an opening in a subsurface formation, comprises a) setting a predetermined level of differential pressure across a mud motor at which pickup of the drill bit is to be initiated; b) monitoring the differential pressure across the mud motor; c) allowing differential pressure across the mud motor to decrease to the predetermined level; and d) when the predetermined level is reached, automatically picking up the drill bit.
摘要翻译： 一种从地下地层中的开口的底部自动拾取钻头的方法，包括：a）设置预定水平的泥浆马达上的差压，钻头的拾取开始于泥浆马达; b）监测泥浆马达的压差; c）允许泥浆马达两端的压差降低到预定水平; 和d）达到预定水平时，自动拾取钻头。
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公开(公告)号：EP2592224A3
公开(公告)日：2017-09-27
申请号：EP12187635.3
申请日：2011-04-11
发明人： EDBURY, David Alston , GUERRERO, Jose Victor , MACDONALD, Duncan Charles , NORMAN, Jason B. , ROGERS, James Byron , SITTON, Donald Ray
IPC分类号： E21B44/02 , E21B47/00 , E21B7/06 , E21B44/00 , E21B21/01 , E21B44/06 , E21B49/00 , E21B21/08
CPC分类号： E21B21/08 , E21B7/06 , E21B21/01 , E21B37/00 , E21B44/00 , E21B44/02 , E21B44/06 , E21B47/00 , E21B47/0003 , E21B49/005
摘要： A method of automatically picking up a drill bit off the bottom of an opening in a subsurface formation, comprises a) setting a predetermined level of differential pressure across a mud motor at which pickup of the drill bit is to be initiated; b) monitoring the differential pressure across the mud motor; c) allowing differential pressure across the mud motor to decrease to the predetermined level; and d) when the predetermined level is reached, automatically picking up the drill bit.
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6.发明公开MONITORING OF DRILLING OPERATIONS WITH FLOW AND DENSITY MEASUREMENT 审中-公开ÜBERWACHUNGVON BOHRARBEITEN MIT DURCHFLUSS- UND DICHTEMESSUNG
公开(公告)号：EP2598715A1
公开(公告)日：2013-06-05
申请号：EP11813186.1
申请日：2011-07-28
发明人： EDBURY, David Alston , GUERRERO, Jose Victor , MACDONALD, Duncan Charles , NORMAN, Jason B. , ROGERS, James Bryon , SITTON, Donald Ray
IPC分类号： E21B47/00 , E21B47/022 , E21B47/12 , E21B47/01
CPC分类号： E21B44/00 , E21B21/08 , E21B37/00 , E21B47/10 , G06T11/206
摘要： A system includes one or more sensors configured to sense at least one characteristic of fluid entering a well, one or more sensors configured to sense at least one characteristic of fluid exiting a well; and one or more control systems that receive data from at least one of the sensors.
摘要翻译： 系统包括被配置为感测进入井的流体的至少一种特性的一个或多个传感器，配置成感测离开井的流体的至少一种特性的一个或多个传感器; 以及从至少一个传感器接收数据的一个或多个控制系统。
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公开(公告)号：EP2334894A1
公开(公告)日：2011-06-22
申请号：EP09821049.5
申请日：2009-10-09
IPC分类号： E21B33/02
CPC分类号： E21B43/24 , E21B43/2401 , E21B43/2405 , E21B44/02 , H01C3/00 , H05B3/48 , H05B2214/03 , Y10T29/49083
摘要： Systems and methods for forming subsurface wellbores are described. A system may include a rack and pinion a rack and pinion system and an automatic position control system. The rack and pinion includes a chuck drive system configured to operate a drilling string. The automatic position control system includes at least one measurement sensor coupled to the rack and pinion system. The automatic position control system is configured to control the rack and pinion system to determine a position of the drilling string.
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