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公开(公告)号：US20080164023A1
公开(公告)日：2008-07-10
申请号：US12054211
申请日：2008-03-24
IPC分类号： E21B43/25
CPC分类号： E21B21/062 , B01F7/16 , B01F13/1013 , B01F13/1016 , B01F15/0408 , G01N9/36 , G05D11/132 , Y10T137/2499
摘要： A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore, wherein the controlling to produce approximately a desired density is independent from the controlling to provide approximately a desired volumetric flow rate.
摘要翻译： 用于维护井眼的方法包括将混合系统连接到井眼，控制混合系统以产生具有大约所需密度的材料混合物，并且控制混合系统以大致期望的方式将材料混合物提供给井筒 用于维持井眼的体积流量，其中产生大约所需密度的控制独立于控制以提供大致期望的体积流量。
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公开(公告)号：US20080084783A1
公开(公告)日：2008-04-10
申请号：US11545751
申请日：2006-10-10
申请人： Mehdi Mazrooee , Jason D. Dykstra
发明人： Mehdi Mazrooee , Jason D. Dykstra
IPC分类号： B01F15/02
CPC分类号： B01F3/1221 , B01F13/0035 , B63B39/005 , E21B33/143 , G01F23/0076
摘要： Methods and systems for controlling processes related to the amount of fluid in a container subjected to externally-excited motions. Fluid level sensor measurements in processing tanks on-board boats are confused by ocean waves and swells. A hydrodynamic model of a fluid in a tank can be constructed using non-linear dynamic model algorithms with inputs such as multi-axis accelerations, fluid viscosity, and apparent level measurements. The model can be used to filter-out boat motion disturbances to obtain a corrected level of the fluid in the tank. The corrected fluid level signal can be further processed using a dynamic model of the tank and associated input and output flow rates in a closed loop observer. The methods and systems are especially advantageous for offshore equipment such as cementing and fracturing ships.
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公开(公告)号：US07353874B2
公开(公告)日：2008-04-08
申请号：US11121325
申请日：2005-05-03
IPC分类号： E21B43/00
CPC分类号： E21B21/062 , B01F7/16 , B01F13/1013 , B01F13/1016 , B01F15/0408 , G01N9/36 , G05D11/132 , Y10T137/2499
摘要： A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore, wherein the controlling to produce approximately a desired density is independent from the controlling to provide approximately a desired volumetric flow rate.
摘要翻译： 用于维护井眼的方法包括将混合系统连接到井眼，控制混合系统以产生具有大约所需密度的材料混合物，并且控制混合系统以大致期望的方式将材料混合物提供给井筒 用于维持井眼的体积流量，其中产生大约所需密度的控制独立于控制以提供大致期望的体积流量。
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54.发明授权公开(公告)号：US07308379B2
公开(公告)日：2007-12-11
申请号：US11121144
申请日：2005-05-03
IPC分类号： G06F15/00
摘要： A density observer for estimating an actual density of a material with a proportional integral controller responsive to a density error determined by subtracting a feedback estimated density from a sensed density. A method of estimating a density of a material by determining a sensed density of the material, determining an estimated density of the material, determining a density error by subtracting the estimated density of the material from the sensed density of the material, and iteratively redetermining the estimated density based on the density error.
摘要翻译： 密度观测器，用于通过比例积分控制器估计材料的实际密度，所述比例积分控制器响应于通过从感测密度减去反馈估计密度而确定的密度误差。 通过确定材料的感测密度，确定材料的估计密度，通过从材料的感测密度中减去材料的估计密度来确定密度误差来估计材料的密度的方法，并且迭代地重新确定 基于密度误差估计密度。
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公开(公告)号：US07270141B2
公开(公告)日：2007-09-18
申请号：US11003727
申请日：2004-12-02
申请人： Jason D. Dykstra
发明人： Jason D. Dykstra
CPC分类号： G05D24/02 , Y10T137/2506 , Y10T137/2572 , Y10T137/7761
摘要： Systems and methods are disclosed for controlling a viscosity of a fluid. The control system includes a controller controlling an input to an actuator and an observer estimating the viscosity of the fluid. The controller includes an input, and the actuator is capable of controlling a viscosity of a fluid by delivering a gelling agent to the fluid. The observer and the controller are coupled together. The observer may be used to determine the viscosity at the current time from a sensor and filter combination that lags the actual viscosity value. The estimated sensor and filter output may be then compared to the sensor and filter output to make corrections to the estimate of the viscosity of the current time.
摘要翻译： 公开了用于控制流体的粘度的系统和方法。 控制系统包括控制对致动器的输入的控制器和估计流体粘度的观察者。 控制器包括输入端，并且致动器能够通过将胶凝剂递送到流体来控制流体的粘度。 观察者和控制器耦合在一起。 观察者可以用于确定当前时间的粘度，其来自传感器和过滤器组合，其滞后于实际粘度值。 然后将估计的传感器和过滤器输出与传感器和过滤器输出进行比较，以对当前时间的粘度的估计进行校正。
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公开(公告)号：US20070171765A1
公开(公告)日：2007-07-26
申请号：US11323324
申请日：2005-12-30
IPC分类号： B01F15/04
CPC分类号： B01F15/00207 , B01F13/1013 , B01F2013/1052 , G05D11/133
摘要： Systems are provided for controlling a volumetric ratio of a material to total materials in a mixing vessel. In various embodiments, the systems may comprise: a volumetric ratio observer for estimating the volumetric ratio of the material to the total materials in the mixing vessel and an output flowrate of the material from the mixing vessel; a flow regulator coupled to the volumetric ratio observer for dynamically recomputing a commanded input flowrate of the material based on outputs of the volumetric ratio observer; and a flow modulator coupled to the flow regulator for adjusting an input valve of the material based on the commanded input flowrate of the material. In an embodiment, the mixing vessel comprises a first mixing vessel partially separated from a second mixing vessel. In this case, a height observer may be used to estimate a height of the total materials in the second mixing vessel.
摘要翻译： 提供了用于控制混合容器中材料与总材料的体积比的系统。 在各种实施例中，系统可以包括：体积比观察器，用于估计材料与混合容器中的总材料的体积比和来自混合容器的材料的输出流量; 耦合到体积比观察器的流量调节器，用于基于体积比观测器的输出来动态地重新计算材料的命令输入流量; 以及流量调节器，其耦合到所述流量调节器，用于基于所述材料的所述命令输入流量来调节所述材料的输入阀。 在一个实施例中，混合容器包括与第二混合容器部分分离的第一混合容器。 在这种情况下，可以使用高度观察器来估计第二混合容器中的总材料的高度。
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57.发明授权Method and apparatus for controlling fluid flow in an autonomous valve using a sticky switch 有权用于使用粘性开关控制自主阀中的流体流动的方法和装置公开(公告)号：US09260952B2
公开(公告)日：2016-02-16
申请号：US13438872
申请日：2012-04-04
申请人： Michael L Fripp , Jason D. Dykstra
发明人： Michael L Fripp , Jason D. Dykstra
摘要： Apparatus and methods are described for autonomously controlling fluid flow in a tubular in a wellbore. A fluid is flowed through an inlet passageway into a biasing mechanism. A fluid flow distribution is established across the biasing mechanism. The fluid flow distribution is altered in response to a change in the fluid characteristic over time. In response, fluid flow through a downstream sticky switch assembly is altered, thereby altering fluid flow patterns in a downstream vortex assembly. The method “selects” based on a fluid characteristic, such as viscosity, density, velocity, flow rate, etc. The biasing mechanism can take various forms such as a widening passageway, contour elements along the biasing mechanism, or a curved section of the biasing mechanism passageway. The biasing mechanism can include hollows formed in the passageway wall, obstructions extending from the passageway wall, fluid diodes, Tesla fluid diodes, a chicane, or abrupt changes in passageway cross-section.
摘要翻译： 描述了用于自主控制井眼中的管中的流体流动的装置和方法。 流体通过入口通道流入偏压机构。 跨越偏置机构建立流体流动分布。 响应于流体特性随时间的变化而改变流体流动分布。 作为响应，通过下游粘性开关组件的流体流动被改变，从而改变下游涡流组件中的流体流动模式。 该方法基于诸如粘度，密度，速度，流量等的流体特性来“选择”。偏置机构可以采取各种形式，例如加宽通道，沿着偏压机构的轮廓元件或者弯曲部分 偏置机构通道。 偏压机构可以包括形成在通道壁中的中空部，从通道壁延伸的障碍物，流体二极管，特斯拉流体二极管，通道或通道横截面的突然变化。
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公开(公告)号：US09249649B2
公开(公告)日：2016-02-02
申请号：US13594790
申请日：2012-08-25
摘要： A bidirectional downhole fluid flow control system is operable to control the inflow of formation fluids and the outflow of injection fluids. The system includes at least one injection flow control component and at least one production flow control component in parallel with the at least one injection flow control component. The at least one injection flow control component and the at least one production flow control component each have direction dependent flow resistance, such that injection fluid flow experiences a greater flow resistance through the at least one production flow control component than through the at least one injection flow control component and such that production fluid flow experiences a greater flow resistance through the at least one injection flow control component than through the at least one production flow control component.
摘要翻译： 双向井下流体流量控制系统可操作以控制地层流体的流入和注入流体的流出。 该系统包括与至少一个喷射流量控制部件并联的至少一个喷射流量控制部件和至少一个生产流量控制部件。 至少一个喷射流量控制部件和至少一个生产流量控制部件各自具有取向流动阻力，使得喷射流体流经由至少一个生产流量控制部件比通过至少一个注射 流动控制部件，并且使得生产流体流通过至少一个喷射流量控制部件比通过至少一个生产流量控制部件经受更大的流动阻力。
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59.发明授权Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system 有权自主井底流体选择方法和装置，具有通路依赖电阻系统公开(公告)号：US09080410B2
公开(公告)日：2015-07-14
申请号：US13462037
申请日：2012-05-02
CPC分类号： E21B34/08 , E21B34/06 , E21B43/08 , E21B43/12 , E21B43/14 , E21B43/32 , F15C1/16 , Y10T137/2065 , Y10T137/2076 , Y10T137/2087 , Y10T137/212
摘要： Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve.
摘要翻译： 用于控制诸如地层流体的流体流过位于穿过地下地层的井眼中的油田管的装置和方法。 流体流动是根据流体流动特性（如密度或粘度）的变化而自主控制的。 在一个实施例中，流体转向器可响应于流体密度变化而在打开和关闭位置之间移动，并可操作以限制流过阀组件入口的流体。 分流器可以响应于流体密度变化而可枢转，可旋转或以其它方式移动。 在一个实施例中，分流器可操作以通过两个阀入口控制流体流量比。 流体流量比用于操作阀构件以限制流过阀的流体流动。
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公开(公告)号：US20150105912A1
公开(公告)日：2015-04-16
申请号：US14403119
申请日：2012-07-12
申请人： Jason D. Dykstra
发明人： Jason D. Dykstra
CPC分类号： E21B41/0092 , E21B44/00 , E21B45/00 , E21B47/00
摘要： A system to optimize a drilling parameter of a drill string includes a drill string control subsystem. The system includes an optimization controller to coordinate operations of the drill string control subsystem during a drilling process at least in part by: determining a first optimized rate of penetration based on a drilling parameter model and a first drilling parameter estimate; providing a first set of commands to the drill string control subsystem based on the first optimized rate of penetration; determining a second drilling parameter estimate during the drilling process based, at least in part, on the drilling parameter model and feedback corresponding to the drill string control subsystem; determining a second optimized rate of penetration during the drilling process based on the second drilling parameter estimate; and providing a second set of commands to the drill string control subsystem based on the second optimized rate of penetration.
摘要翻译： 用于优化钻柱的钻孔参数的系统包括钻柱控制子系统。 所述系统包括优化控制器，用于在钻井过程期间至少部分地通过以下方式来协调钻柱控制子系统的操作：基于钻井参数模型和第一钻井参数估计确定第一优化的穿透速率; 基于所述第一优化的穿透速率向所述钻柱控制子系统提供第一组命令; 至少部分地基于对应于钻柱控制子系统的钻孔参数模型和反馈，在钻孔过程中确定第二钻孔参数估计; 基于所述第二钻孔参数估计确定所述钻孔过程中的第二优化穿透速率; 以及基于所述第二优化穿透速率向所述钻柱控制子系统提供第二组命令。
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