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    MICROHYDRAULIC FRACTURING WITH DOWNHOLE ACOUSTIC MEASUREMENT
    4.
    发明申请
    MICROHYDRAULIC FRACTURING WITH DOWNHOLE ACOUSTIC MEASUREMENT 有权
    具有卧室声学测量的微波碎裂

    公开(公告)号：US20100157737A1

    公开(公告)日：2010-06-24

    申请号：US12430914

    申请日：2009-04-28

    申请人： DOUGLAS E. MILLER ,  AHMAD LATIFZAI ,  ROMAIN CHARLES ANDRE PRIOUL ,  BRUCE A. MACKAY ,  OLIVER C. MULLINS ,  ANDREAS HAUSOT ,  CANYUN WANG ,  ALIREZA FARAHANI

    发明人： DOUGLAS E. MILLER ,  AHMAD LATIFZAI ,  ROMAIN CHARLES ANDRE PRIOUL ,  BRUCE A. MACKAY ,  OLIVER C. MULLINS ,  ANDREAS HAUSOT ,  CANYUN WANG ,  ALIREZA FARAHANI

    IPC分类号： G01S1/72 ,  G01V1/00

    CPC分类号： G01V1/46 ,  E21B33/124 ,  E21B43/26 ,  E21B47/101

    摘要： Methods and related systems are described for measuring acoustic signals in a borehole during a fracturing operation. The system includes a downhole toolstring designed and adapted for deployment in a borehole formed within a subterranean rock formation. A downhole rock fracturing tool opens and propagates a fracture in the subterranean rock formation. Dipole and/or quadrupole acoustic sources transmit acoustic energy into the subterranean rock formation. A receiver array measures acoustic energy traveling through the subterranean rock formation before, during and after the fracture induction. Geophones mounted on extendable arms can be used to measure shear wave acoustic energy travelling in the rock formation. The toolstring can be constructed such that the sources and receivers straddle the fracture zone during the fracturing. Alternatively, the sources or the receivers can co-located axially with the fracture zone, or the toolstring can be repositioned following fracturing such that the fracture zone is between the acoustic sources and receivers.

    摘要翻译： 描述了用于在压裂操作期间测量井眼中的声信号的方法和相关系统。 该系统包括设计并适于部署在形成于地下岩层内的钻孔中的井下工具串。 井下岩石压裂工具打开并传播地下岩层中的裂缝。 偶极和/或四极声源将声能传递到地下岩层中。 接收器阵列测量在断裂诱导之前，之中和之后穿过地下岩层的声能。 安装在可伸缩臂上的地震检波器可用于测量在岩层中行进的剪切波声能。 可以构造工具串，使得源和接收器在压裂期间跨越断裂带。 或者，源或接收器可以与断裂区域轴向共定位，或者在压裂之后可以重新定位工具串，使得断裂区域在声源和接收器之间。

    METHODS AND APPARATUS TO ESTIMATE FLUID COMPONENT VOLUMES
    6.
    发明申请
    METHODS AND APPARATUS TO ESTIMATE FLUID COMPONENT VOLUMES 有权
    估计流体成分体积的方法和装置

    公开(公告)号：US20120304757A1

    公开(公告)日：2012-12-06

    申请号：US13149901

    申请日：2011-06-01

    申请人： GO FUJISAWA ,  ANDREW J. CARNEGIE ,  JACK H. HARFOUSHIAN ,  SAIFON DAUNGKAEW SIRIMONGKOLKITTI ,  OLIVER C. MULLINS

    发明人： GO FUJISAWA ,  ANDREW J. CARNEGIE ,  JACK H. HARFOUSHIAN ,  SAIFON DAUNGKAEW SIRIMONGKOLKITTI ,  OLIVER C. MULLINS

    IPC分类号： E21B47/06 ,  E21B47/00

    CPC分类号： E21B49/081

    摘要： Methods of and apparatus to estimate one or more volumes of one or more components of a fluid in a sample chamber of a downhole tool are described. An example method includes obtaining a sample chamber volume measurement, a flowline volume measurement and a supplemental volume measurement. The example method includes drawing the fluid into the sample chamber until the sample chamber is substantially full and measuring a characteristic of the fluid in the sample chamber at a first time to obtain a first characteristic measurement. The example method also includes adding a supplemental volume corresponding to the supplemental volume measurement to over-pressurize the sample chamber after measuring the characteristic at the first time and measuring the characteristic of the fluid in the sample chamber at a second time to obtain a second characteristic measurement. The second time is after the sample chamber is over-pressurized. In addition, the example method includes calculating a first volume of a first component of the one or more components of the fluid based on the first characteristic measurement, the second characteristic measurement, the sample chamber volume measurement, the flowline volume measurement and the supplemental volume measurement.

    摘要翻译： 描述了用于估计井下工具的样品室中的一种或多种流体的一种或多种组分的方法和装置。 示例性方法包括获得样品室体积测量，流线体积测量和补充体积测量。 该示例性方法包括将流体抽入样品室，直到样品室基本上满，并且在第一次测量样品室中的流体的特性以获得第一特征测量。 该示例方法还包括在第一次测量特征之后添加与补充体积测量相对应的补充体积，以在第二次测量样品室中的特性之后对样品室进行过压以获得第二特性 测量。 样品室第二次过压后。 此外，该示例性方法包括基于第一特征测量，第二特征测量，样本室体积测量，流量线测量和补充体积来计算流体的一个或多个分量的第一分量的第一体积 测量。

    METHODS AND APPARATUS TO DETERMINE A CONCENTRATION OF NITROGEN IN A DOWNHOLE FLUID
    8.
    发明申请
    METHODS AND APPARATUS TO DETERMINE A CONCENTRATION OF NITROGEN IN A DOWNHOLE FLUID 有权
    测定井底液中硝酸浓度的方法和装置

    公开(公告)号：US20090143992A1

    公开(公告)日：2009-06-04

    申请号：US12277262

    申请日：2008-11-24

    申请人： GO FUJISAWA ,  CHEE KIN KHONG ,  OLIVER C. MULLINS

    发明人： GO FUJISAWA ,  CHEE KIN KHONG ,  OLIVER C. MULLINS

    IPC分类号： G01V1/40

    CPC分类号： G01N33/2823

    摘要： Methods and apparatus to determine a concentration of nitrogen in a downhole fluid are described. An example apparatus to determine a concentration of nitrogen in a downhole fluid includes a fluid measurement unit to measure a first fluid composition and a density of at least a hydrocarbon and carbon dioxide in a sample of the downhole fluid. Additionally, the example apparatus includes one or more sensors to measure at least a pressure and a temperature of the sample. Further, the example apparatus includes a processing unit to determine a first theoretical density based on at least the first fluid composition, the temperature, and the pressure the sample. Further still, the example apparatus includes an analyzer to determine a first difference between the density of at least the hydrocarbon and the carbon dioxide in the sample and the first theoretical density. The first difference is associated with a concentration of nitrogen in the sample.

    摘要翻译： 描述了确定井下流体中的氮浓度的方法和装置。 确定井下流体中的氮浓度的示例性装置包括测量井下流体样品中的第一流体组成和至少一种烃和二氧化碳的密度的流体测量单元。 另外，该示例性装置包括用于测量样品的至少压力和温度的一个或多个传感器。 此外，该示例性装置包括处理单元，该处理单元至少基于第一流体组成，温度和样品的压力确定第一理论密度。 此外，示例性装置包括分析器，用于确定样品中至少烃和二氧化碳的密度与第一理论密度之间的第一差异。 第一个差异与样品中的氮浓度有关。