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    Enhanced downhole fluid analysis
    2.
    发明授权
    Enhanced downhole fluid analysis 有权
    增强井下流体分析

    公开(公告)号：US07637151B2

    公开(公告)日：2009-12-29

    申请号：US11612596

    申请日：2006-12-19

    申请人： Bhavani Raghuraman ,  Kristofer Gunnar Paso ,  Neil William Bostrom

    发明人： Bhavani Raghuraman ,  Kristofer Gunnar Paso ,  Neil William Bostrom

    IPC分类号： E21B47/08

    CPC分类号： G01N33/2823 ,  G01N2030/025 ,  G01N2030/8854 ,  G01N2030/8886

    摘要： The operation, analysis and interpretation of a chromatographic system can be significantly enhanced by coupling therewith one or more fluid property measurements that provides an initial indication of the fluid type, the presence of any contamination, an estimate of the hydrocarbon composition (C1, C2-C5 and C6+), gas/oil ratio, color and/or fluorescence measurements. Other measurements that can be used in the initial stage can include density, viscosity, phase transition determinations. These measurements may be used to enhance, in real-time, the GC sampling protocol, the analysis protocol and also improve the robustness of the interpretation of the chromatogram.

    摘要翻译： 色谱系统的操作，分析和解释可以通过与其一起或多个流体性质测量结合而显着增强，其提供流体类型的初始指示，任何污染物的存在，烃组成的估计（C1，C2- C5和C6 +），气/油比，颜色和/或荧光测量。 可以在初始阶段使用的其他测量可以包括密度，粘度，相变测定。 这些测量可用于实时提高GC采样方案，分析方案，并提高色谱解释的鲁棒性。

    High pressure and high temperature chromatography
    3.
    发明授权
    High pressure and high temperature chromatography 有权
    高压和高温色谱

    公开(公告)号：US08028562B2

    公开(公告)日：2011-10-04

    申请号：US11958049

    申请日：2007-12-17

    申请人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

    发明人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

    IPC分类号： G01N30/02

    CPC分类号： G01N33/2823 ,  E21B47/10 ,  G01N30/22 ,  G01N30/32 ,  G01N30/88 ,  G01N2030/8809 ,  G01N2030/8854

    摘要： Methods and related systems are described for high pressure chromatographic analysis. The described system includes a flowpath adapted to flow a mobile phase and the sample at high pressures, an injector adapted to inject the fluid sample into a flowpath, a separation column adapted to operate at high pressures for separating various components, a detector and a processor that calculates the amount of at least one component of the fluid sample. The system can operate a pressures above 20 atm or even 100 atm, and temperatures above about 100 degrees Celsius. The system can deployed in a wellbore in a subterranean rock formation, and include fluid collection system for obtaining the fluid sample downhole. The system can also be located close to a wellhead and includes a tap in fluid communication with a surface flowline carrying produced fluids and the injector.

    摘要翻译： 描述了用于高压色谱分析的方法和相关系统。 所描述的系统包括适于流动流动相和高压下的样品的流路，适于将流体样品注入流路的注射器，适于在高压下操作以分离各种组分的分离柱，检测器和处理器 其计算流体样品的至少一个组分的量。 该系统可以操作压力高于20atm，甚至100 atm，温度高于约100摄氏度。 该系统可以部署在地下岩层中的井眼中，并且包括用于在井下获得流体样品的流体收集系统。 该系统还可以靠近井口定位，并且包括与携带产生的流体的表面流线和喷射器流体连通的龙头。

    HIGH PRESSURE AND HIGH TEMPERATURE CHROMATOGRAPHY
    4.
    发明申请
    HIGH PRESSURE AND HIGH TEMPERATURE CHROMATOGRAPHY 有权
    高压和高温色谱

    公开(公告)号：US20090151426A1

    公开(公告)日：2009-06-18

    申请号：US11958049

    申请日：2007-12-17

    申请人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

    发明人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

    IPC分类号： G01N30/02

    CPC分类号： G01N33/2823 ,  E21B47/10 ,  G01N30/22 ,  G01N30/32 ,  G01N30/88 ,  G01N2030/8809 ,  G01N2030/8854

    摘要： Methods and related systems are described for high pressure chromatographic analysis. The described system includes a flowpath adapted to flow a mobile phase and the sample at high pressures, an injector adapted to inject the fluid sample into a flowpath, a separation column adapted to operate at high pressures for separating various components, a detector and a processor that calculates the amount of at least one component of the fluid sample. The system can operate a pressures above 20 atm or even 100 atm, and temperatures above about 100 degrees Celsius. The system can deployed in a wellbore in a subterranean rock formation, and include fluid collection system for obtaining the fluid sample downhole. The system can also be located close to a wellhead and includes a tap in fluid communication with a surface flowline carrying produced fluids and the injector.

    摘要翻译： 描述了用于高压色谱分析的方法和相关系统。 所描述的系统包括适于流动流动相和高压下的样品的流路，适于将流体样品注入流路的注射器，适于在高压下操作以分离各种组分的分离柱，检测器和处理器 其计算流体样品的至少一个组分的量。 该系统可以操作压力高于20atm，甚至100 atm，温度高于约100摄氏度。 该系统可以部署在地下岩层中的井眼中，并且包括用于在井下获得流体样品的流体收集系统。 该系统还可以靠近井口定位，并且包括与携带产生的流体的表面流线和喷射器流体连通的龙头。

    ENHANCED DOWNHOLE FLUID ANALYSIS
    5.
    发明申请
    ENHANCED DOWNHOLE FLUID ANALYSIS 有权
    增强井下流体分析

    公开(公告)号：US20080141767A1

    公开(公告)日：2008-06-19

    申请号：US11612596

    申请日：2006-12-19

    申请人： Bhavani Raghuraman ,  Kristofer Gunnar Paso ,  Neil William Bostrom

    发明人： Bhavani Raghuraman ,  Kristofer Gunnar Paso ,  Neil William Bostrom

    IPC分类号： E21B47/08

    CPC分类号： G01N33/2823 ,  G01N2030/025 ,  G01N2030/8854 ,  G01N2030/8886

    摘要： The operation, analysis and interpretation of a chromatographic system can be significantly enhanced by coupling therewith one or more fluid property measurements that provides an initial indication of the fluid type, the presence of any contamination, an estimate of the hydrocarbon composition (C1, C2-C5 and C6+), gas/oil ratio, color and/or fluorescence measurements. Other measurements that can be used in the initial stage can include density, viscosity, phase transition determinations. These measurements may be used to enhance, in real-time, the GC sampling protocol, the analysis protocol and also improve the robustness of the interpretation of the chromatogram.

    摘要翻译： 色谱系统的操作，分析和解释可以通过与其一起或多个流体性质测量结合而显着增强，其提供流体类型的初始指示，任何污染物的存在，烃组成的估计（C1，C2- C5和C6 +），气/油比，颜色和/或荧光测量。 可以在初始阶段使用的其他测量可以包括密度，粘度，相变测定。 这些测量可用于实时提高GC采样方案，分析方案，并提高色谱解释的鲁棒性。

    Processing and interpretation of real-time data from downhole and surface sensors
    8.
    发明授权
    Processing and interpretation of real-time data from downhole and surface sensors 有权
    从井下和表面传感器处理和解释实时数据

    公开(公告)号：US08612193B2

    公开(公告)日：2013-12-17

    申请号：US10442216

    申请日：2003-05-20

    申请人： Bhavani Raghuraman ,  Terizhandur S. Ramakrishnan ,  Kenneth E. Stephenson ,  Lalitha Venkataramanan ,  Jose Navarro

    发明人： Bhavani Raghuraman ,  Terizhandur S. Ramakrishnan ,  Kenneth E. Stephenson ,  Lalitha Venkataramanan ,  Jose Navarro

    IPC分类号： G06G7/48 ,  G01V1/40 ,  G01V3/00

    CPC分类号： E21B43/00 ,  E21B47/00

    摘要： In accordance with an embodiment of the present invention, a method of processing large volumes of data to allow for real-time reservoir management is disclosed, comprising: a) acquiring a first data series from a first reservoir sensor; b) establishing a set of criteria based on reservoir management objectives, sensor characteristics, sensor location, nature of the reservoir, and data storage optimization, etc.; c) identifying one or more subsets of the first data series meeting at least one of the criteria; and optionally d) generating one or more second data series based on at least one of the subsets. This methodology may be repeated for numerous reservoir sensors. This methodology allows for intelligent evaluation of sensor data by using carefully established criteria to intelligently select one or more subsets of data. In an alternative embodiment, sensor data from one or more sensors may be evaluated while processing data from a different sensor.

    摘要翻译： 根据本发明的实施例，公开了一种处理大量数据以允许实时油藏管理的方法，包括：a）从第一油藏传感器获取第一数据序列; b）根据油藏管理目标，传感器特征，传感器位置，储层性质，数据存储优化等建立一套标准; c）识别符合所述标准中的至少一个的所述第一数据序列的一个或多个子集; 以及可选地d）基于所述子集中的至少一个生成一个或多个第二数据序列。 对于许多储层传感器可以重复该方法。 该方法允许通过使用仔细确定的标准智能地选择一个或多个数据子集来智能评估传感器数据。 在替代实施例中，可以在处理来自不同传感器的数据的同时评估来自一个或多个传感器的传感器数据。

    Completion apparatus for measuring streaming potentials and determining earth formation characteristics
    9.
    发明授权
    Completion apparatus for measuring streaming potentials and determining earth formation characteristics 有权
    用于测量流动电位并确定地球形成特征的完成装置

    公开(公告)号：US07891417B2

    公开(公告)日：2011-02-22

    申请号：US12400241

    申请日：2009-03-09

    申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G Supp ,  Jose Navarro

    发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G Supp ,  Jose Navarro

    IPC分类号： E21B47/06

    CPC分类号： G01V3/265 ,  E21B47/102 ,  E21B49/08

    摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

    摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

    Method for continuous interpretation of monitoring data
    10.
    发明授权
    Method for continuous interpretation of monitoring data 有权
    连续解释监测数据的方法

    公开(公告)号：US07715984B2

    公开(公告)日：2010-05-11

    申请号：US11935202

    申请日：2007-11-05

    申请人： Terizhandur S. Ramakrishnan ,  Bhavani Raghuraman

    发明人： Terizhandur S. Ramakrishnan ,  Bhavani Raghuraman

    IPC分类号： G01V1/28 ,  G01N15/08 ,  G06F19/00 ,  G06F17/40

    CPC分类号： G01V1/40

    摘要： It is shown that a pressure pulse originating in a well is correlated to a pulse observed at a distant well with a characteristic time. The correlation time is directly related to the diffusion time scale arising out of the pressure diffusion equation. The relationship is affected by the source-observer or observer-observer distance but the correction is small for large distances. In practice, further corrections have to be included for finite width pulses. For these pulses, a practical scheme for continuous permeability monitoring is presented.

    摘要翻译： 示出了源自井的压力脉冲与在特征时间在远距离井处观察到的脉冲相关。 相关时间与压力扩散方程产生的扩散时间尺度直接相关。 该关系受到源观察者或观察者 - 观察者距离的影响，但是对于大距离而言，校正较小。 实际上，必须对有限宽度脉冲进行进一步的校正。 对于这些脉冲，提出了用于连续渗透率监测的实用方案。