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公开(公告)号：US20050171699A1
公开(公告)日：2005-08-04
申请号：US10769014
申请日：2004-01-30
申请人： Alexander Zazovsky , Julian Pop , Paul Hammond
发明人： Alexander Zazovsky , Julian Pop , Paul Hammond
CPC分类号： E21B47/06 , E21B49/008
摘要： A method for determining formation pressure at a depth region of formations surrounding a borehole, including: keeping track of the time since cessation of drilling at the depth region; deriving formation permeability at the depth region; causing wellbore pressure to vary periodically in time and determining, at the depth region, the periodic and non-periodic component of pressure measured in the formations; determining, using the time, the periodic component and the permeability, the formation pressure diffusivity and transmissibility and an estimate of the size of the pressure build-up zone around the wellbore at the depth region; determining, using the time, the formation pressure diffusivity and transmissibility, and the non-periodic component, the leak-off rate of the mudcake at the depth region; determining, using the leak-off rate, the pressure gradient at the depth region; and extrapolating, using the pressure gradient and the size of the build-up zone, to determine the formation pressure.
摘要翻译： 一种用于确定钻孔周围地层深度区域的地层压力的方法，包括：跟踪在深度区域停止钻孔的时间; 在深度区域导出地层渗透率; 导致井筒压力在时间上周期性地变化，并且在深度区域确定在地层中测量的压力的周期性和非周期性分量; 使用时间确定周期分量和渗透率，地层压力扩散系数和透射率以及在深度区域周围井筒周围的压力增加区的尺寸的估计; 使用时间确定地层压力扩散率和透射率以及非周期性分量，泥饼在深度区域的泄漏速率; 使用泄漏率来确定深度区域处的压力梯度; 并使用压力梯度和积聚区的尺寸进行外推，以确定地层压力。
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公开(公告)号：US08744774B2
公开(公告)日：2014-06-03
申请号：US12742677
申请日：2008-11-10
申请人： Alexander Zazovsky
发明人： Alexander Zazovsky
CPC分类号： E21B49/08 , E21B49/087
摘要： Cleanup monitoring and prediction in real time targeting estimation of pumpout volume versus final contamination, including detecting breakthrough of formation fluid to a sampling tool and detecting transition of cleanup regime from a predominantly circumferential cleanup regime to a predominantly vertical cleanup regime. Similar workflow can be employed for estimating contamination at the end of cleanup production for a given pumpout volume.
摘要翻译： 清理监测和预测实时目标估计抽水量与最终污染，包括检测地层流体到采样工具的突破，以及检测清理方案从主要是周向清理方式向主要垂直清理方式的转变。 可以采用类似的工作流程来估计给定抽水量的净化生产结束时的污染。
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3.发明授权Methods and apparatus to control a formation testing operation based on a mudcake leakage 有权基于泥饼泄漏控制地层测试操作的方法和装置公开(公告)号：US08042387B2
公开(公告)日：2011-10-25
申请号：US12122077
申请日：2008-05-16
IPC分类号： E21B49/10
CPC分类号： E21B49/087 , E21B49/10
摘要： Methods and apparatus to control a formation testing operation based on a mudcake leakage are disclosed. A disclosed example method for use with a downhole tool disposed in a wellbore comprises measuring a property of a mudcake layer at a first location in a wellbore, determining a value representative of an estimated leakage through the mudcake layer based on the property, and determining, based on the value, whether to continue a formation testing operation.
摘要翻译： 公开了基于泥饼泄漏来控制地层测试操作的方法和装置。 公开的用于设置在井眼中的井下工具的示例性方法包括测量在井筒中的第一位置处的泥饼层的性质，基于该性质确定表示通过泥饼层的估计泄漏的值， 根据价值，是否继续进行形成测试操作。
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公开(公告)号：US07932220B2
公开(公告)日：2011-04-26
申请号：US11678738
申请日：2007-02-26
申请人： Alexander Zazovsky , Jian Zhou , Christopher Del Campo , Golchehreh Salamat , Diankui Fu , Jese C. Lee
发明人： Alexander Zazovsky , Jian Zhou , Christopher Del Campo , Golchehreh Salamat , Diankui Fu , Jese C. Lee
IPC分类号： C10M161/00
CPC分类号： C10M161/00 , C10M2207/281 , C10M2207/34 , C10M2209/084 , C10M2209/104 , C10M2209/106 , C10M2209/108 , C10M2215/04 , C10M2219/044 , C10M2221/043 , C10M2229/041 , C10N2230/12 , C10N2230/26 , C10N2240/08 , C10N2250/022 , Y10S166/902
摘要： A composition for use in an oil chamber of a tool includes a hydraulic oil; and a surfactant, wherein the surfactant is present at an amount sufficient to form micelles in the hydraulic oil. The composition may further include an amphiphilic copolymer. A method includes providing a hydraulic fluid composition comprising a hydraulic oil and a surfactant capable of forming micelles in the hydraulic oil; and filling a hydraulic chamber in the tool with the hydraulic fluid composition. The hydraulic fluid composition may further include an amphiphilic copolymer.
摘要翻译： 用于工具的油室中的组合物包括液压油; 和表面活性剂，其中表面活性剂以足以在液压油中形成胶束的量存在。 组合物还可以包括两亲性共聚物。 一种方法包括提供包括液压油和能够在液压油中形成胶束的表面活性剂的液压流体组合物; 并用液压流体组合物在工具中填充液压室。 液压流体组合物还可以包括两亲共聚物。
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公开(公告)号：US20080245569A1
公开(公告)日：2008-10-09
申请号：US11829460
申请日：2007-07-27
申请人： Ray Nold , Alexander Zazovsky , Ricardo Vasques , Steven G. Villareal , Reinhart Ciglenec , Albert Hoefel
发明人： Ray Nold , Alexander Zazovsky , Ricardo Vasques , Steven G. Villareal , Reinhart Ciglenec , Albert Hoefel
IPC分类号： E21B44/06
CPC分类号： E21B49/10
摘要： Apparatus and methods to perform focused sampling of reservoir fluid are described. An example method couples a sampling probe to a subterranean formation and, while the sampling probe is coupled to the subterranean formation, varies a pumping ratio of at least two displacement units to reduce a contamination level of a formation flu id extracted via the sampling probe from the subterranean formation.
摘要翻译： 描述了对储层流体进行聚焦取样的装置和方法。 示例性方法将采样探针耦合到地下地层，并且当采样探针耦合到地下地层时，改变至少两个位移单元的泵送比，以减少通过采样探针提取的地层流感id的污染水平 地层。
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公开(公告)号：US20070079962A1
公开(公告)日：2007-04-12
申请号：US11609384
申请日：2006-12-12
IPC分类号： E21B49/10
CPC分类号： E21B49/008 , E21B49/08 , E21B49/10
摘要： Methods and apparatuses for evaluating a fluid from a subterranean formation of a wellsite via a downhole tool positionable in a wellbore penetrating a subterranean formation are provided. The apparatus relates to a downhole tool having a probe with at least two intakes for receiving fluid from the subterranean formation. The downhole tool is configured according to a wellsite set up. The method involves positioning the downhole tool in the wellbore of the wellsite, drawing fluid into the downhole tool via the at least two intakes, monitoring at least one wellsite parameter via at least one sensor of the wellsite and automatically adjusting the wellsite setup based on the wellsite parameters.
摘要翻译： 提供了用于通过井下工具从井下地层中评估流体的方法和装置，所述井下工具可定位在穿透地下地层的井眼中。 该装置涉及具有至少两个入口的探针的井下工具，用于接收来自地层的流体。 井下工具根据井场设置进行配置。 该方法包括将井下工具定位在井筒的井眼中，经由至少两个进气口将流体引入井下工具中，通过井场的至少一个传感器监测至少一个井场参数，并基于 井场参数。
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公开(公告)号：US09151415B2
公开(公告)日：2015-10-06
申请号：US13785982
申请日：2013-03-05
申请人： Alexander Zazovsky , Luis Phillipe Costa Ferreira Tosi , Seth Thomas Taylor , Andres Zoldi , Grzegorz Jan Kusinski , Leslie Douglas Munson
发明人： Alexander Zazovsky , Luis Phillipe Costa Ferreira Tosi , Seth Thomas Taylor , Andres Zoldi , Grzegorz Jan Kusinski , Leslie Douglas Munson
摘要： A tubular pipe adapted for transporting oil and water may be treated upon its interior surface to reduce frictional pressure of a multiphase oil/water mixture flowing through the pipe. The tubular pipe may have an interior wall and a central cavity. In some instances, the interior surface is provided with a first textured region being adapted for reducing the adhesive forces of transported oil along the interior wall. A second region upon the interior wall may be adapted for reducing the adhesive forces of water along the interior wall of the tubular pipe. In some applications, riblets may be provided upon the interior pipe wall to further reduce the frictional forces of fluid flowing through the central cavity of the pipe.
摘要翻译： 适于输送油和水的管状管可以在其内表面处理，以减少流过管道的多相油/水混合物的摩擦压力。 管状管可以具有内壁和中心腔。 在一些情况下，内表面设置有第一纹理区域，其适于减少输送的油沿着内壁的粘合力。 内壁上的第二区域可适于减小沿着管状管的内壁的水的粘附力。 在一些应用中，肋可以设置在内管壁上，以进一步减少流过管中心腔的流体的摩擦力。
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公开(公告)号：US08496054B2
公开(公告)日：2013-07-30
申请号：US11962857
申请日：2007-12-21
IPC分类号： E21B49/10
CPC分类号： E21B49/10 , E21B36/04 , E21B43/2401
摘要： A method for sampling fluid in a subterranean formation includes, reducing a viscosity of a fluid, pressurizing a portion of the subterranean formation and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.
摘要翻译： 用于对地下地层中的流体进行采样的方法包括：降低流体的粘度，加压地下地层的一部分并收集流体样品。 具体地说，通过将位移流体注入到地下地层中，地层的一部分中的流体的粘度降低，地层的一部分被加压。 然后收集由置换液体加压的流体样品。
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公开(公告)号：US08024868B2
公开(公告)日：2011-09-27
申请号：US12486187
申请日：2009-06-17
申请人： James C. Brannigan , Raymond V. Nold, III , John Rasmus , Fernando Garcia-Osuna , Alexander Zazovsky
发明人： James C. Brannigan , Raymond V. Nold, III , John Rasmus , Fernando Garcia-Osuna , Alexander Zazovsky
CPC分类号： E21B47/08
摘要： A drill string caliper includes a mandrel configured to be coupled within a drill string. At least one laterally extensible arm is coupled to an exterior of the mandrel. A biasing device is configured to urge the at least one arm into contact with a wall of a wellbore. A sensor is configured to generate an output signal corresponding to a lateral extent of the at least one arm.
摘要翻译： 钻杆卡钳包括构造成联接在钻柱内的心轴。 至少一个横向可伸展的臂联接到心轴的外部。 偏压装置构造成促使至少一个臂与井眼的壁接触。 传感器被配置为产生对应于至少一个臂的横向范围的输出信号。
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10.发明申请METHODS AND APPARATUS TO CONTROL A FORMATION TESTING OPERATION BASED ON A MUDCAKE LEAKAGE 有权基于MUDCAKE泄漏控制形成测试操作的方法和装置公开(公告)号：US20090282907A1
公开(公告)日：2009-11-19
申请号：US12122077
申请日：2008-05-16
CPC分类号： E21B49/087 , E21B49/10
摘要： Methods and apparatus to control a formation testing operation based on a mudcake leakage are disclosed. A disclosed example method for use with a downhole tool disposed in a wellbore comprises measuring a property of a mudcake layer at a first location in a wellbore, determining a value representative of an estimated leakage through the mudcake layer based on the property, and determining, based on the value, whether to continue a formation testing operation.
摘要翻译： 公开了基于泥饼泄漏来控制地层测试操作的方法和装置。 公开的用于设置在井眼中的井下工具的示例性方法包括测量在井筒中的第一位置处的泥饼层的性质，基于该性质确定表示通过泥饼层的估计泄漏的值， 根据价值，是否继续进行形成测试操作。
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