公开(公告)号：US07178392B2

公开(公告)日：2007-02-20

申请号：US10644284

申请日：2003-08-20

申请人： Brindesh Dhruva ,  Elizabeth B. Dussan, V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick A. Jenet ,  Michael G. Supp ,  Jennifer Trittschuh

发明人： Brindesh Dhruva ,  Elizabeth B. Dussan, V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick A. Jenet ,  Michael G. Supp ,  Jennifer Trittschuh

IPC分类号： E21B47/06

CPC分类号： E21B49/10 ,  E21B49/008

摘要： A method for determining formation fluid pressure in earth formation surrounding a borehole wall uses a downhole probe coupled to a variable-volume cavity. The probe is driven into contact with formation at the borehole wall. The method includes expanding the volume of the cavity during a first period of time to establish fluid communication between tool fluid and formation fluid, by withdrawing a minimal amount of fluid from the formation. During a second period of time the tool pressure is allowed to equilibrate to formation pressure. When pressure equilibrium is established, formation fluid pressure is set equal to tool pressure. A preferred embodiment includes terminating expanding the volume of the cavity on detecting a break in the mud cake seal. An associated formation pressure tester tool includes an elongated body; a probe defining a formation fluid inflow aperture, an electromechanical assembly defining a variable-volume cavity, a pretest flow line coupling the aperture to the cavity, a pressure sensor coupled to the cavity; and downhole electronic means for controlling the expansion of the volume of the cavity.

摘要翻译： 用于确定围绕井壁的地层中的地层流体压力的方法使用连接到可变体积腔的井下探针。 探头被驱动与钻孔壁的形成接触。 该方法包括在第一时间段内膨胀空腔的体积，以通过从地层中抽取最少量的流体来建立工具流体和地层流体之间的流体连通。 在第二时间段期间，允许工具压力平衡到地层压力。 当建立压力平衡时，地层流体压力设定为等于工具压力。 优选实施例包括在检测到泥饼密封件中的断裂时终止膨胀空腔的体积。 相关联的地层压力测试仪工具包括细长体; 限定地层流体流入孔的探针，限定可变体积腔的机电组件，将孔耦合到空腔的预测流线，耦合到空腔的压力传感器; 以及井下电子装置，用于控制空腔体积的膨胀。

公开(公告)号：US20050039527A1

公开(公告)日：2005-02-24

申请号：US10644284

申请日：2003-08-20

申请人： Brindesh Dhruva ,  Elizabeth B. Dussan V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick Jenet ,  Michael Supp ,  Jennifer Trittschuh

发明人： Brindesh Dhruva ,  Elizabeth B. Dussan V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick Jenet ,  Michael Supp ,  Jennifer Trittschuh

IPC分类号： E21B49/00 ,  E21B49/10 ,  E21B47/06

CPC分类号： E21B49/10 ,  E21B49/008

摘要： A method for determining formation fluid pressure in earth formation surrounding a borehole wall uses a downhole probe coupled to a variable-volume cavity. The probe is driven into contact with formation at the borehole wall. The method includes expanding the volume of the cavity during a first period of time to establish fluid communication between tool fluid and formation fluid, by withdrawing a minimal amount of fluid from the formation. During a second period of time the tool pressure is allowed to equilibrate to formation pressure. When pressure equilibrium is established, formation fluid pressure is set equal to tool pressure. A preferred embodiment includes terminating expanding the volume of the cavity on detecting a break in the mud cake seal. An associated formation pressure tester tool includes an elongated body; a probe defining a formation fluid inflow aperture, an electromechanical assembly defining a variable-volume cavity, a pretest flow line coupling the aperture to the cavity, a pressure sensor coupled to the cavity; and downhole electronic means for controlling the expansion of the volume of the cavity.

摘要翻译： 用于确定围绕井壁的地层中的地层流体压力的方法使用连接到可变体积腔的井下探针。 探头被驱动与钻孔壁的形成接触。 该方法包括在第一时间段内膨胀空腔的体积，以通过从地层中抽取最少量的流体来建立工具流体和地层流体之间的流体连通。 在第二时间段期间，允许工具压力平衡到地层压力。 当建立压力平衡时，地层流体压力设定为等于工具压力。 优选实施例包括在检测到泥饼密封件中的断裂时终止膨胀空腔的体积。 相关联的地层压力测试仪工具包括细长体; 限定地层流体流入孔的探针，限定可变体积腔的机电组件，将孔耦合到空腔的预测流线，耦合到空腔的压力传感器; 以及井下电子装置，用于控制空腔体积的膨胀。

公开(公告)号：US08778059B2

公开(公告)日：2014-07-15

申请号：US11949362

申请日：2007-12-03

申请人： William H. Steinecker ,  Jagdish Shah ,  Oleg Zhdaneev ,  Gordon R. Lambertus ,  Hua Chen

发明人： William H. Steinecker ,  Jagdish Shah ,  Oleg Zhdaneev ,  Gordon R. Lambertus ,  Hua Chen

IPC分类号： G01N30/60 ,  B01D53/02 ,  G01N30/26 ,  G01N30/56

CPC分类号： B01D15/22 ,  G01N30/32 ,  G01N30/52 ,  G01N30/54 ,  G01N30/6065 ,  G01N2030/324 ,  G01N2030/524

摘要： Methods and related systems are described for improving component separations in chromatography through novel techniques. The improvements in separation is due primarily to the provision of differential acceleration of the components being separated. Various systems and methods for providing differential acceleration are described including: increasing the cross section of the column towards the column outlet, changing the thickness or other composition of stationary phase within the column, and providing a temperature and/or mobile phase velocity gradient along the column.

摘要翻译： 描述了通过新技术改进色谱分离的方法和相关系统。 分离的改进主要是由于提供了被分离的部件的差速加速。 描述了用于提供差速加速度的各种系统和方法，其包括：将塔的横截面增加到塔出口，改变柱内的固定相的厚度或其它组成，以及沿着柱提供温度和/或流动相速度梯度 柱。

公开(公告)号：US07658092B2

公开(公告)日：2010-02-09

申请号：US11615426

申请日：2006-12-22

申请人： Neil William Bostrom ,  Shigeo Daito ,  Jagdish Shah ,  Robert L. Kleinberg

发明人： Neil William Bostrom ,  Shigeo Daito ,  Jagdish Shah ,  Robert L. Kleinberg

IPC分类号： G01N30/02

CPC分类号： G01N30/30 ,  E21B49/00 ,  G01N30/54 ,  G01N2030/3007

摘要： A heat switch for remote self-contained gas chromatography is disclosed. The device mechanically separates a hot or cold reservoir from the chromatography column when heating or cooling is not needed. The column needs a cooling system to obtain initial temperatures below ambient. At other times the column needs to be heated to relatively high temperatures, during which time the cooling system is preferably detached. The heat switch allows for rapid temperature changes while minimizing the peak cooling power requirement.

摘要翻译： 公开了用于远程独立气相色谱的热开关。 当不需要加热或冷却时，该装置将热或冷储存器与色谱柱机械分离。 该柱需要一个冷却系统以获得低于环境温度的初始温度。 在另一些时候，柱需要被加热到相对较高的温度，在此期间优选分离冷却系统。 热开关允许快速的温度变化，同时最小化峰值冷却功率要求。

公开(公告)号：US07600413B2

公开(公告)日：2009-10-13

申请号：US11564430

申请日：2006-11-29

申请人： Jagdish Shah ,  Neil William Bostrom ,  Hua Chen ,  Shigeo Daito ,  Edward Harrigan

发明人： Jagdish Shah ,  Neil William Bostrom ,  Hua Chen ,  Shigeo Daito ,  Edward Harrigan

IPC分类号： G01N30/04

CPC分类号： G01N30/88 ,  B01L3/502715 ,  B01L2200/18 ,  G01N30/6095 ,  G01N2030/025 ,  G01N2030/8854 ,  G01N2030/8881

摘要： A self-contained micro-scale gas chromatography system that includes a plurality of gas chromatography components arranged on a micro-fluidic platform with nearly zero dead volume “tubeless” fluidic connections for the gas chromatography components. The micro-fluidic platform includes a plurality of flow channels that provide fluid flow paths for a sample, carrier gas and waste gas through and among the micro-fluidic platform and the plurality of gas chromatography components. The system may also include an on-board supply of carrier gas and on-board waste management, as well as a thermal management scheme making the system suitable for use in oil and gas wells and also other remote environments.

摘要翻译： 一种独立的微量气相色谱系统，其包括布置在微流体平台上的多个气相色谱组分，具有用于气相色谱组分的几乎零死体积的“无内源”流体连接。 微流体平台包括多个流动通道，其为样品，载气和废气提供通过微流体平台和多个气相色谱组分之间的流体流动路径。 该系统还可以包括载体气体和车载废物管理的车载供应，以及使得该系统适用于油气井以及其他远程环境的热管理方案。

公开(公告)号：US20050016272A1

公开(公告)日：2005-01-27

申请号：US10843097

申请日：2004-05-11

申请人： Jagdish Shah ,  Rogerio Ramos ,  Olivier Sindt ,  Philip Dryden ,  Cliff Evans ,  Mark Dalton

发明人： Jagdish Shah ,  Rogerio Ramos ,  Olivier Sindt ,  Philip Dryden ,  Cliff Evans ,  Mark Dalton

IPC分类号： G01P15/093 ,  G02B6/14 ,  G01P15/03

CPC分类号： G01P15/093 ,  G02B6/14

摘要： A method of making a fiber optic accelerometer includes (a) drawing an optical fiber through a resin; (b) winding the resin coated fiber onto a disc mounted on an assembly having a central shaft; and (c) curing the resin-coated fiber. The optical fiber may be drawn through a resin by providing a container filled with a resin having an orifice therethrough and drawing the fiber through the orifice. The resin may be cured such that the fiber is bonded to the disc by curing the resin to the fiber and the disc at the same time.

摘要翻译： 制造光纤加速度计的方法包括：（a）通过树脂拉制光纤; （b）将树脂涂覆的纤维卷绕到安装在具有中心轴的组件上的盘上; 和（c）固化树脂被覆纤维。 通过提供填充有具有孔口的树脂的容器并通过孔口拉出纤维，可以将光纤拉伸通过树脂。 树脂可以被固化，使得纤维通过将树脂固化到纤维和盘同时粘合到盘上。

公开(公告)号：US4805875A

公开(公告)日：1989-02-21

申请号：US002936

申请日：1987-01-13

申请人： Kenneth J. Jackson ,  Jagdish Shah ,  Robert E. Graham, Jr.

发明人： Kenneth J. Jackson ,  Jagdish Shah ,  Robert E. Graham, Jr.

IPC分类号： B66F3/24 ,  B66F3/28 ,  B60P1/00

CPC分类号： B66F3/24 ,  B66F3/28

摘要： The disclosed jack assembly has an elongated structural beam of sufficient length to extend between and beyond the two rails of a railroad track to be supported on top of the rails. A compact power lift cylinder, in the form of a multiple-sleeve power cylinder, is connected to the beam; and a car engaging plate is coupled to the power lift cylinder, to be moved in a direction transverse to the beam. The silhouette of the beam, power lift cylinder and plate is low, when the power lift cylinder is contracted, to allow them to be fitted with clearance to a lifting position, under a railroad car with the beam extended across the track rails and the car engaging plate vertically aligned under the railroad car frame. The power lift cylinder has a power stroke sufficient to lift the overlying railroad car enough above the rails to remove the railroad car completely from one wheeled truck assembly, for replacement or the like. Blocks carried on the beam can be shifted against the raised car engaging plate, to hold it independently of failure of the power lift. A pumping system for the power lift is located laterally beyond the one side of the road car, with operating controls within easy reach of someone standing at this location. The pumping system can optionally be secured as a unitary part of the jack assembly, or as a separate unit. The jack assembly can be used from either side of the car, typically at a location between the wheeled truck assemblies supporting the car.

摘要翻译： 所公开的千斤顶组件具有足够长度的细长结构梁，以在铁轨的两个轨道之间延伸并延伸，以支撑在轨道的顶部。 以多套动力缸形式的小型动力提升缸连接到梁上; 并且轿厢接合板联接到动力提升缸，以沿横向于梁的方向移动。 梁，动力提升缸和板的轮廓较低，当动力提升缸收缩时，允许它们在提升位置上安装有间隙，在铁路车辆下方，横梁延伸穿过轨道轨道和汽车 接合板垂直对齐在铁路车架下。 动力提升缸具有足够的动力冲程，足以在上面的轨道上提升上面的铁路车辆，以完全从一个轮式卡车组件移除铁路车辆，以进行更换等。 承载在梁上的块可以抵靠凸起的轿厢接合板移动，以保持其独立于动力升降的故障。 用于动力升降机的泵送系统位于横向超越道路车一侧的位置，其操作控制可以容易地到达位于该位置的人。 泵送系统可以可选地被固定为千斤顶组件的整体部件，或者作为单独的单元。 千斤顶组件可以从汽车的任一侧使用，通常在支撑汽车的轮式卡车组件之间的位置。

公开(公告)号：US07799278B2

公开(公告)日：2010-09-21

申请号：US10885471

申请日：2004-07-06

申请人： Philippe Salamitou ,  Joyce Wong ,  Bhavani Raghuraman ,  Jagdish Shah ,  Ronald E. G. Van Hal ,  Robert J. Schroeder ,  Patrick Jean René Tabeling

发明人： Philippe Salamitou ,  Joyce Wong ,  Bhavani Raghuraman ,  Jagdish Shah ,  Ronald E. G. Van Hal ,  Robert J. Schroeder ,  Patrick Jean René Tabeling

IPC分类号： G01N21/00

CPC分类号： B01L3/502715 ,  B01L3/502707 ,  B01L3/50273

摘要： A microfluidic system for performing fluid analysis is described having: (a) a submersible housing having a fluid analysis means and a power supply to provide power to said system; and (b) a substrate for receiving a fluid sample, having embedded therein a fluid sample inlet, a reagent inlet, a fluid sample outlet, and a mixing region in fluid communication with the fluid sample inlet, the reagent inlet, and the fluid sample outlet, and wherein the substrate includes a fluid drive means for moving the fluid sample through the substrate, and wherein the substrate interconnects with the housing. At least a portion of the fluid analysis means may be embedded in the substrate.

摘要翻译： 描述了一种用于执行流体分析的微流体系统，其具有：（a）具有流体分析装置的潜水壳体和向所述系统提供动力的电源; （b）用于接收流体样品的基板，其中嵌入有流体样品入口，试剂入口，流体样品出口和与流体样品入口，试剂入口和流体样品流体连通的混合区域 出口，并且其中所述基板包括用于使所述流体样品通过所述基板移动的流体驱动装置，并且其中所述基板与所述壳体相互连接。 流体分析装置的至少一部分可以嵌入衬底中。

公开(公告)号：US20080121017A1

公开(公告)日：2008-05-29

申请号：US11614735

申请日：2006-12-21

申请人： Jagdish Shah ,  Hua Chen ,  Shigeo Daito ,  Neil William Bostrom

发明人： Jagdish Shah ,  Hua Chen ,  Shigeo Daito ,  Neil William Bostrom

IPC分类号： G01N30/04

CPC分类号： G01N30/88 ,  B01L3/502715 ,  B01L2200/18 ,  G01N30/6095 ,  G01N2030/025 ,  G01N2030/8854 ,  G01N2030/8881

摘要： A self-contained micro-scale gas chromatography system that includes a plurality of gas chromatography components arranged on a micro-fluidic platform with nearly zero dead volume “tubeless” fluidic connections for the gas chromatography components. The micro-fluidic platform includes a plurality of flow channels that provide fluid flow paths for a sample, carrier gas and waste gas through and among the micro-fluidic platform and the plurality of gas chromatography components. The gas chromatography components may include a micro-scale gas chromatography column that is implemented as a MEMS device and includes embedded heating and cooling elements. The system may also include an on-board supply of carrier gas and on-board waste management, as well as a thermal management scheme making the system suitable for use in oil and gas wells and also other remote environments.

摘要翻译： 一种独立的微量气相色谱系统，其包括布置在微流体平台上的多个气相色谱组分，具有用于气相色谱组分的几乎零死体积的“无内源”流体连接。 微流体平台包括多个流动通道，其为样品，载气和废气提供通过微流体平台和多个气相色谱组分之间的流体流动路径。 气相色谱组分可以包括实现为MEMS装置并包括嵌入式加热和冷却元件的微尺度气相色谱柱。 该系统还可以包括载体气体和车载废物管理的车载供应，以及使得该系统适用于油气井以及其他远程环境的热管理方案。

公开(公告)号：US07097501B2

公开(公告)日：2006-08-29

申请号：US10722091

申请日：2003-11-25

申请人： Jagdish Shah

发明人： Jagdish Shah

IPC分类号： H01R13/40

CPC分类号： H01B17/306 ,  Y10S439/935 ,  Y10T428/30

摘要： A method and apparatus for electrically interfacing between two or more distinct environments. The method and apparatus are directed to an electrical feedthru with one or more electrical transmission lines coated with one or more thin dielectric layers of material to insulate the transmission lines from a feedthru body. The dielectric layers may include a diamond-like carbon coating, which electrically insulates, but also thermally conducts. The use of thin dielectric layers facilitates smaller, more efficient electrical feedthrus. Therefore, the electrical feedthru may be used, for example, with MEMS devices. The electrical feedthru is not limited to any particular geometry, it may be adapted to fit between any two environments.

摘要翻译： 一种用于在两个或多个不同环境之间电接口的方法和装置。 该方法和装置涉及一个电馈送，其中一个或多个电传输线涂覆有一个或多个薄的电介质层，以将传输线与馈通体绝缘。 电介质层可以包括类金刚石碳涂层，其电绝缘，但也是热传导的。 使用薄的电介质层有助于更小，更有效的电馈电。 因此，电馈送可以用于例如MEMS器件。 电动馈电不限于任何特定的几何形状，它可以适应于任何两个环境之间。