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    Tar Mat Formation Prediction in Late-Charge Reservoirs
    31.
    发明申请
    Tar Mat Formation Prediction in Late-Charge Reservoirs 审中-公开
    晚期充填油藏焦油层形成预测

    公开(公告)号：US20160047208A1

    公开(公告)日：2016-02-18

    申请号：US14927305

    申请日：2015-10-29

    Applicant: Schlumberger Technology Corporation

    Inventor： Yi Chen ,  Kang Wang ,  Oliver C. Mullins ,  Youxiang Zuo

    IPC: E21B43/00 ,  G06F17/10 ,  E21B49/08

    CPC classification number: E21B43/00 ,  E21B49/088 ,  E21B2049/085 ,  G06F17/10

    Abstract: A downhole tool, surface equipment, and/or remote equipment are utilized to obtain data associated with a subterranean hydrocarbon reservoir, fluid contained therein, and/or fluid obtained therefrom. At least one condition indicating that a density inversion exists in the fluid contained in the reservoir is identified from the data. Molecular sizes of fluid components contained within the reservoir are estimated from the data. A model of the density inversion is generated based on the data and molecular sizes. The density inversion model is utilized to estimate the density inversion amount and depth and time elapsed since the density inversion began to form within the reservoir. A model of a gravity-induced current of the density inversion is generated based on the data and the density inversion amount, depth, and elapsed time.

    Abstract translation: 使用井下工具，地面设备和/或远程设备来获得与地下烃储存器，其中容纳的流体和/或由其获得的流体相关的数据。 从数据中识别至少一个条件，指示存储在容器中的流体中的密度反演存在。 从数据中估计储存器中所含的流体成分的分子大小。 基于数据和分子大小生成密度反演的模型。 密度反演模型用于估计密度倒置量，深度和从储层内形成密度反演以来经过的时间。 基于数据和密度倒置量，深度和经过时间生成密度反演的重力感应电流的模型。

    Downhole Real-Time Filtrate Contamination Monitoring
    32.
    发明申请
    Downhole Real-Time Filtrate Contamination Monitoring 审中-公开
    井下实时滤液污染监测

    公开(公告)号：US20150308264A1

    公开(公告)日：2015-10-29

    申请号：US14697382

    申请日：2015-04-27

    Applicant: Schlumberger Technology Corporation

    Inventor： Youxiang Zuo ,  Kang Wang ,  Adriaan Gisolf ,  Ryan Sangjun Lee ,  Oliver C. Mullins ,  Shu Pan

    IPC: E21B49/08 ,  G01N33/28

    CPC classification number: E21B49/088 ,  E21B2049/085 ,  G01N33/2841

    Abstract: A method includes identifying linearly behaving data within obtained data associated with fluid obtained from a subterranean formation. Shrinkage factor is determined based on the linearly behaving data. A function relating GOR data of the obtained fluid with the determined shrinkage factor is determined. A first linear relationship between optical density (OD) data of the obtained fluid and the function is determined. A second linear relationship between density data of the obtained fluid and the function is determined. An oil-based mud (OBM) filtrate contamination property of OBM filtrate within the obtained fluid based on the first linear relationship is determined. A native formation property of native formation fluid within the obtained fluid based on the second linear relationship is determined. A volume fraction of OBM filtrate contamination within the obtained fluid based on the OBM filtrate contamination property and the native formation property is estimated.

    Abstract translation: 一种方法包括识别与从地下地层获得的流体相关联的获得的数据内的线性行为数据。 基于线性行为数据确定收缩系数。 确定获得的流体的GOR数据与确定的收缩率相关联的函数。 确定获得的流体的光密度（OD）数据与函数之间的第一线性关系。 确定获得的流体的密度数据与函数之间的第二线性关系。 确定基于第一线性关系的所得流体中OBM滤液的油基泥浆（OBM）滤液污染特性。 确定基于第二线性关系的所获得的流体内的天然地层流体的天然地层特性。 基于OBM滤液污染特性和天然形成特性估算得到流体中OBM滤液污染物的体积分数。

    Oil Based Drilling Mud Filtrate Contamination Monitoring Using Gas To Oil Ratio
    33.
    发明申请
    Oil Based Drilling Mud Filtrate Contamination Monitoring Using Gas To Oil Ratio 有权
    油基钻井泥浆滤液污染监测使用气油比

    公开(公告)号：US20140316705A1

    公开(公告)日：2014-10-23

    申请号：US13865839

    申请日：2013-04-18

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Anthony Smits ,  Oliver C. Mullins

    IPC: G01V8/10

    CPC classification number: G01V8/10 ,  E21B49/088 ,  G01N33/2823

    Abstract: A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid.

    Abstract translation: 提供了一种用于监测油基泥浆滤液污染物的方法，包括将流体流分解为两部分的步骤，确定用于确定污染流体的表观气/油比的天然流体的气/油比，并确定体积分数 ，基于天然流体的气/油比的油基污染水平和污染流体的表观气/油比。

    Fluid Density From Downhole Optical Measurements
    35.
    发明申请
    Fluid Density From Downhole Optical Measurements 审中-公开
    井下光学测量中的流体密度

    公开(公告)号：US20130239664A1

    公开(公告)日：2013-09-19

    申请号：US13886605

    申请日：2013-05-03

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Kai Hsu ,  Kentaro Indo ,  Oliver C. Mullins ,  Peter S. Hegeman

    IPC: E21B49/08

    CPC classification number: E21B49/087 ,  E21B47/102 ,  E21B49/08 ,  E21B2049/085

    Abstract: A system and method for determining at least one fluid characteristic of a downhole fluid sample using a downhole tool are provided. In one example, the method includes performing a calibration process that correlates optical and density sensor measurements of a fluid sample in a downhole tool at a plurality of pressures. The calibration process is performed while the fluid sample is not being agitated. At least one unknown value of a density calculation is determined based on the correlated optical sensor measurements and density sensor measurements. A second optical sensor measurement of the fluid sample is obtained while the fluid sample is being agitated. A density of the fluid sample is calculated based on the second optical sensor measurement and the at least one unknown value.

    Abstract translation: 提供了一种用于使用井下工具确定井下流体样品的至少一种流体特性的系统和方法。 在一个示例中，该方法包括执行校准过程，其将多个压力下的井下工具中的流体样本的光学和密度传感器测量值相关联。 校准过程在流体样品未被搅动时进行。 基于相关的光学传感器测量和密度传感器测量确定密度计算的至少一个未知值。 在流体样品被搅动的同时获得液体样品的第二光学传感器测量。 基于第二光学传感器测量和至少一个未知值计算流体样本的密度。

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