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11. 发明授权

US09279298B2 Well control systems and methods 有权
标题翻译：井控系统和方法
公开(公告)号：US09279298B2
公开(公告)日：2016-03-08
申请号：US13392900
申请日：2010-01-05
申请人： Derrick W. Lewis , Ronald J. Dirksen , David Michael Radley , James R. Lovorn , Fredrick D. Curtis
发明人： Derrick W. Lewis , Ronald J. Dirksen , David Michael Radley , James R. Lovorn , Fredrick D. Curtis
IPC分类号： E21B21/08 , E21B44/00
CPC分类号： E21B21/08 , E21B44/005
摘要： A well control method can include removing from a wellbore an undesired influx from a formation into the wellbore, determining a desired pressure profile in real time with a hydraulics model, and automatically operating a flow choking device while removing the undesired influx from the wellbore, thereby influencing an actual pressure profile toward the desired pressure profile. Another well control method can include removing out of a wellbore an undesired influx from a formation into the wellbore, determining a desired wellbore pressure with a hydraulics model, the desired wellbore pressure preventing further influx into the wellbore while removing the undesired influx from the wellbore, and automatically operating a flow choking device while removing the undesired influx from the wellbore, thereby influencing an actual wellbore pressure toward the desired wellbore pressure.
摘要翻译：井控制方法可以包括从井筒中去除从地层到井筒的不期望的流入，用液压模型实时确定期望的压力分布，并且自动地操作流动阻塞装置，同时从井筒除去不需要的流入，由此影响到所需压力分布的实际压力分布。另一井井控制方法可以包括从井筒中去除从地层到井筒的不期望的流入，用液压模型确定所需的井眼压力，所需的井眼压力防止进一步流入井眼，同时从井眼除去不想要的流入物，并且自动地操作流动阻塞装置，同时从井筒除去不期望的流入，从而影响实际井筒压力朝向所需井筒压力。

12. 发明申请

US20140290964A1 PRESSURE CONTROL IN DRILLING OPERATIONS WITH OFFSET APPLIED IN RESPONSE TO PREDETERMINED CONDITIONS 审中-公开
标题翻译：钻孔操作中的压力控制应用于预测条件的偏差
公开(公告)号：US20140290964A1
公开(公告)日：2014-10-02
申请号：US14362565
申请日：2012-07-02
申请人： James R. Lovorn , Nancy S. Davis , Cody N. Butler
发明人： James R. Lovorn , Nancy S. Davis , Cody N. Butler
IPC分类号： E21B34/10
CPC分类号： E21B34/10 , E21B21/08
摘要： A method of controlling pressure in a wellbore can include determining a desired well pressure setpoint, adding an offset to the setpoint in response to an actual well pressure deviating from the setpoint by a predetermined amount, and adjusting a flow control device, thereby influencing the actual well pressure toward the setpoint plus the offset. A well system can include a flow control device which variably restricts flow from a wellbore, and a control system which determines a desired well pressure setpoint, compares the setpoint to an actual well pressure, and adds an offset to the setpoint in response to a predetermined amount of deviation between the setpoint and the actual well pressure, whereby the control system adjusts the flow control device, and thereby influences the actual well pressure toward the setpoint plus the offset.
摘要翻译：控制井眼中的压力的方法可以包括确定期望的井压设定点，响应于偏离设定点预定量的实际井压而将偏移量添加到设定点，以及调节流量控制装置，由此影响实际对设定值的加压偏移很大。井系统可以包括可变地限制来自井筒的流量的流量控制装置，以及确定期望井压力设定点的控制系统，将设定值与实际油井压力进行比较，并且响应于预定的设定值与实际井压之间的偏差量，由此控制系统调节流量控制装置，从而影响到设定点的实际井压加偏移。

13. 发明授权

US08820405B2 Segregating flowable materials in a well 有权
标题翻译：分离井中的可流动材料
公开(公告)号：US08820405B2
公开(公告)日：2014-09-02
申请号：US13345546
申请日：2012-01-06
申请人： Jay K. Turner , James R. Lovorn
发明人： Jay K. Turner , James R. Lovorn
IPC分类号： E21B33/13 , E21B21/08
CPC分类号： E21B21/08 , E21B33/13
摘要： A method of segregating flowable materials in conjunction with a subterranean well can include segregating flowable cement from a fluid by placing a flowable barrier substance between the cement and the fluid, and the barrier substance substantially preventing displacement of the cement by force of gravity through the barrier substance and into the fluid. Another method of segregating flowable materials can include flowing a barrier substance into a wellbore above a fluid already in the wellbore, and then flowing cement into the wellbore above the barrier substance. A system for use in conjunction with a subterranean well can include a flowable cement isolated from a fluid by a flowable barrier substance positioned between the cement and the fluid, whereby the barrier substance substantially prevents displacement of the cement by force of gravity through the barrier substance and into the fluid.
摘要翻译：将可流动材料与地下井分开的方法可以包括通过在水泥和流体之间放置可流动的阻挡物质将可流动的水泥从流体中分离出来，并且阻挡物质基本上防止水泥通过重力作用通过阻挡层物质进入流体。分离可流动材料的另一种方法可以包括将阻挡物质流入已经在井眼中的流体上方的井筒中，然后将水泥流入屏障物质上方的井筒内。与地下井一起使用的系统可以包括通过位于水泥和流体之间的可流动阻挡物质从流体隔离的可流动的水泥，由此阻挡物质基本上防止水泥被重力作用通过阻挡物质并进入流体。

14. 发明授权

US08281875B2 Pressure and flow control in drilling operations 有权
标题翻译：钻井作业中的压力和流量控制
公开(公告)号：US08281875B2
公开(公告)日：2012-10-09
申请号：US12638012
申请日：2009-12-15
申请人： James R. Lovorn , Carlos Bruder , Neal G. Skinner , Joe Karigan
发明人： James R. Lovorn , Carlos Bruder , Neal G. Skinner , Joe Karigan
IPC分类号： E21B44/00
CPC分类号： E21B21/08 , E21B21/10
摘要： A well drilling system for use with a drilling fluid pump includes a flow control device regulating flow from the pump to a drill string interior; and another flow control device regulating flow through a line in communication with an annulus. Flow is simultaneously permitted through the flow control devices. A method of maintaining a desired bottom hole pressure includes dividing drilling fluid flow between a line in communication with a drill string interior and a line in communication with an annulus; the flow dividing step including permitting flow through a flow control device interconnected between a pump and the drill string interior; and the flow dividing step including permitting flow through another flow control device interconnected between the pump and the annulus, while flow is permitted through the first flow control device.
摘要翻译：用于钻井液泵的钻井系统包括调节从泵到钻柱内部的流动的流量控制装置; 以及另一个流量控制装置，其调节通过与环形空间连通的线路的流动。通过流量控制装置同时允许流量。保持所需井底压力的方法包括在与钻柱内部连通的管线与与环空连通的管线之间划分钻井液流; 所述分流步骤包括允许通过在泵和所述钻柱内部之间互连的流量控制装置的流动; 并且所述分流步骤包括允许通过所述泵和所述环之间互连的另一流量控制装置的流动，同时允许通过所述第一流量控制装置的流动。

15. 发明申请

US20150240579A1 Pressure Control in Drilling Operations with Choke Position Determined by Cv Curve 审中-公开
标题翻译：采用Cv曲线确定扼流位置钻孔作业时的压力控制
公开(公告)号：US20150240579A1
公开(公告)日：2015-08-27
申请号：US14412631
申请日：2012-07-02
申请人： James R. Lovorn , Nancy S. Davis , Cody N. Butler
发明人： James R. Lovorn , Nancy S. Davis , Cody N. Butler
IPC分类号： E21B21/08 , E21B21/10 , E21B47/06 , E21B34/02
CPC分类号： E21B21/08 , E21B21/10 , E21B34/02 , E21B47/06
摘要： A method of controlling pressure in a wellbore can include determining a desired position for a choke, the determining being based on a Cv curve for the choke, and adjusting the choke to the desired position, thereby producing a desired backpressure. A wellbore drilling system can include a choke which variably restricts flow of fluid from the wellbore, and a control system which compares actual and desired wellbore pressures and, in response to a difference between the actual and desired wellbore pressures, adjusts the choke to a predetermined position which corresponds to a desired Cv of the choke. A method of controlling pressure in a wellbore can include comparing an actual wellbore pressure to a desired wellbore pressure and, in response to a difference between the actual and desired wellbore pressures, adjusting a choke to a predetermined position, the predetermined position corresponding to a desired Cv of the choke.
摘要翻译：控制井眼中的压力的方法可以包括确定扼流圈的期望位置，该确定基于扼流圈的Cv曲线，并将扼流圈调节到所需位置，由此产生所需的背压。井眼钻井系统可以包括可变地限制来自井筒的流体流动的扼流圈，以及控制系统，该控制系统比较实际和期望的井眼压力，并且响应于实际井眼压力和期望的井眼压力之间的差异，将扼流圈调节到预定的对应于扼流圈所需Cv的位置。控制井眼中的压力的方法可以包括将实际井眼压力与期望的井眼压力进行比较，并且响应于实际井眼压力和期望井筒压力之间的差异，将扼流圈调节到预定位置，对应于预期位置的预定位置扼流圈的Cv。

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