公开(公告)号：US20070209793A1

公开(公告)日：2007-09-13

申请号：US11739536

申请日：2007-04-24

申请人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

发明人： Raymond Nold ,  Alexander Zazovsky ,  Steve Ervin ,  Christopher Del Campo ,  Stephane Briquet

IPC分类号： E21B49/08

CPC分类号： E21B49/10

摘要： A method for acquiring a sample of a virgin fluid from a subsurface formation penetrated by a wellbore surrounded by a layer of contaminated fluid is disclosed. The method includes abutting a first packer against a wall of the wellbore, and extending at least a portion of a second packer beyond the first packer, wherein the second packer is at least partially disposed in the first packer. An inlet to a first flowline is at least partially defined by the first packer, and an inlet to a second flowline is defined by the second packer. The method further includes drawing one of virgin fluid, contaminated fluid and combinations thereof into the first flowline; and drawing virgin fluid into the second flowline.

摘要翻译： 公开了一种从受污染流体层围绕的井眼渗透的地下地层获取原始流体样品的方法。 该方法包括将第一封隔器抵靠井壁的壁，并将第二封隔器的至少一部分延伸超过第一封隔器，其中第二封隔器至少部分地布置在第一封隔器中。 第一流线的入口至少部分地由第一封隔器限定，并且第二流线的入口由第二封隔器限定。 该方法还包括将初始流体，污染流体及其组合中的一种引入第一流线中; 并将原始流体绘制到第二流线中。

公开(公告)号：US07062959B2

公开(公告)日：2006-06-20

申请号：US10248124

申请日：2002-12-19

申请人： Andrew L. Kurkjian ,  Jean-Marc Follini ,  Patrick J. Fisseler ,  Thomas W. Palmer, II ,  Alexander Zazovsky

发明人： Andrew L. Kurkjian ,  Jean-Marc Follini ,  Patrick J. Fisseler ,  Thomas W. Palmer, II ,  Alexander Zazovsky

IPC分类号： E21B44/00 ,  E21B47/12

CPC分类号： E21B47/06 ,  E21B49/087

摘要： A method and apparatus is provided to determine downhole pressures, such as annular pressure and/or pore pressure, during a drilling operation. A downhole drilling tool includes at least one conduit and a corresponding gauge. The conduit is positioned in the downhole tool and has an opening adapted to receive downhole fluids. The conduit is positionable in fluid communication with one of the wellbore and the formation whereby pressure is equalized therebetween. The gauge is provided for measuring the pressure in the conduit.

摘要翻译： 提供了一种在钻井操作期间确定井下压力（例如环形压力和/或孔隙压力）的方法和装置。 井下钻井工具包括至少一个导管和相应的量规。 导管定位在井下工具中并且具有适于接收井下流体的开口。 导管可定位成与井眼和地层中的一个流体连通，从而在它们之间相互压力。 该量规用于测量管道中的压力。

公开(公告)号：US08484858B2

公开(公告)日：2013-07-16

申请号：US13041912

申请日：2011-03-07

申请人： James C. Brannigan ,  Raymond V. Nold, III ,  John C. Rasmus ,  Fernando Garcia-Osuna ,  Alexander Zazovsky

发明人： James C. Brannigan ,  Raymond V. Nold, III ,  John C. Rasmus ,  Fernando Garcia-Osuna ,  Alexander Zazovsky

IPC分类号： E21B47/08 ,  G01B5/12

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。

公开(公告)号：US08393874B2

公开(公告)日：2013-03-12

申请号：US12624809

申请日：2009-11-24

申请人： Alexander Zazovsky ,  Mark Milkovisch ,  Pierre Campanac

发明人： Alexander Zazovsky ,  Mark Milkovisch ,  Pierre Campanac

IPC分类号： F04B49/20

CPC分类号： F04B47/04 ,  E21B49/10 ,  Y10T29/49236

摘要： A pumping system and method to be used within a downhole tool is disclosed herein. The pumping system includes a displacement unit having a cavity formed therein, in which the cavity is configured to receive a fluid therein. A hydraulic driving device and a mechanical driving device are then both included within the system such that both the hydraulic driving device and the mechanical driving device are configured to drive a piston of the displacement unit to receive the fluid within the cavity.

摘要翻译： 本文公开了一种在井下工具中使用的泵送系统和方法。 泵送系统包括具有形成在其中的空腔的位移单元，其中空腔构造成在其中容纳流体。 液压驱动装置和机械驱动装置然后都被包括在系统内，使得液压驱动装置和机械驱动装置都构造成驱动排量单元的活塞以接收空腔内的流体。

公开(公告)号：US20120055711A1

公开(公告)日：2012-03-08

申请号：US13041912

申请日：2011-03-07

申请人： James C. Brannigan ,  Raymond V. Nold, III ,  John C. Rasmus ,  Fernando Garcia-Osuna ,  Alexander Zazovsky

发明人： James C. Brannigan ,  Raymond V. Nold, III ,  John C. Rasmus ,  Fernando Garcia-Osuna ,  Alexander Zazovsky

IPC分类号： E21B47/00

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。

公开(公告)号：US07878244B2

公开(公告)日：2011-02-01

申请号：US11829460

申请日：2007-07-27

申请人： Ray Nold, III ,  Alexander Zazovsky ,  Ricardo Vasques ,  Steven G. Villareal ,  Reinhart Ciglenec ,  Albert Hoefel

发明人： Ray Nold, III ,  Alexander Zazovsky ,  Ricardo Vasques ,  Steven G. Villareal ,  Reinhart Ciglenec ,  Albert Hoefel

IPC分类号： E21B49/08

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。

公开(公告)号：US20100319991A1

公开(公告)日：2010-12-23

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

IPC分类号： E21B47/08

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。

公开(公告)号：US07331223B2

公开(公告)日：2008-02-19

申请号：US10248535

申请日：2003-01-27

申请人： Alexander Zazovsky

发明人： Alexander Zazovsky

IPC分类号： E21B47/06

CPC分类号： E21B49/10 ,  E21B47/06

摘要： A method and apparatus for measuring the pressure of a formation penetrated by a wellbore is provided. A downhole tool is positioned in the wellbore and a probe is extended therefrom into sealing engagement with the formation. A piston in the probe is retracted therein where by a cavity is defined for receiving a fluid from the formation. A pressure underbalance in the cavity draws fluid from the formation into the cavity. An oscillator may be used to fluctuate the flow of fluid into the cavity. A pressure gauge is used to measure the pressure of fluid in the cavity.

摘要翻译： 提供了一种用于测量由井筒渗透的地层的压力的方法和装置。 井下工具定位在井筒中，探针从其中延伸成与地层密封接合。 探针中的活塞缩回到其中，通过空腔限定用于从地层接收流体。 空腔中的压力不平衡将流体从地层吸入空腔。 可以使用振荡器来波动流入空腔的流体。 压力表用于测量空腔中流体的压力。

公开(公告)号：US07185699B2

公开(公告)日：2007-03-06

申请号：US10709730

申请日：2004-05-25

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： E21B41/00 ,  C10M107/32

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。

公开(公告)号：US07031841B2

公开(公告)日：2006-04-18

申请号：US10769014

申请日：2004-01-30

申请人： Alexander Zazovsky ,  Julian J. Pop ,  Paul S. Hammond

发明人： Alexander Zazovsky ,  Julian J. Pop ,  Paul S. Hammond

IPC分类号： E21B49/10

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积聚区的尺寸的估计; 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。