Method for Determining Petrophysical Properties From Logging Measurements
    3.
    发明申请
    Method for Determining Petrophysical Properties From Logging Measurements 审中-公开
    从测井测量中确定岩石物理性质的方法

    公开(公告)号:US20160216405A1

    公开(公告)日:2016-07-28

    申请号:US15005666

    申请日:2016-01-25

    CPC classification number: G01V11/00

    Abstract: A method for transforming a 2D or 3D earth volume geometry into a 1D earth volume geometry includes performing a measurement using the measurement sensor in a wellbore. A layer boundary in the 2D or 3D earth volume geometry that is nearest to the measurement sensor is identified. A vector from the measurement sensor is generated toward the nearest layer boundary. A first intersection is identified between the vector and the nearest layer boundary, and a second intersection is identified between the vector and another layer boundary. Simulated boundaries that extend through the first and second intersections and are perpendicular to the vector are generated. The 1D earth volume geometry that is bounded by the first and second intersections is identified. A property value is extracted from the 2D or 3D earth volume geometry between the first and second intersections. The property value is assigned to the 1D earth geometry.

    Abstract translation: 将2D或3D地球体积几何变换为1D地球体积几何的方法包括使用井眼中的测量传感器执行测量。 识别最接近测量传感器的2D或3D地球体积几何中的层边界。 生成来自测量传感器的矢量朝向最近的层边界。 在矢量和最近的层边界之间识别第一个交点,并且在矢量和另一个层边界之间识别第二个交点。 生成延伸通过第一和第二交叉并且垂直于向量的模拟边界。 识别由第一和第二交叉点限定的1D地球体积几何。 从第一和第二交叉点之间的2D或3D地球体积几何提取属性值。 属性值分配给1D地球几何。

    Formation evaluation using stochastic analysis of log data

    公开(公告)号:US10422221B2

    公开(公告)日:2019-09-24

    申请号:US15021079

    申请日:2014-09-16

    Abstract: A method for determining a volume of a constituent(s) in a geological formation may include generating an equation of state based upon log measurements for the geological formation, with the equation of state providing a correlation between the log measurements, determining a quality factor for the equation of state, and for each of a plurality of different constituents expected to be in the formation, determining a constituent compliance factor for each of the constituents. The method may further include determining an uncertainty for each constituent compliance factor, determining a likelihood that each constituent is present in the formation based upon the quality factor, the constituent compliance factor for the constituent, and the uncertainty for the constituent compliance factor, generating a volumetric model based upon the log measurements and the determined likelihoods of the constituents in the formation, and determining the volume of the constituent(s) based upon the volumetric model.

    Method and Apparatus for Determining Formation Properties Using Non-Directional Electromagnetic Measurements in High Angle or Horizontal Wells
    6.
    发明申请
    Method and Apparatus for Determining Formation Properties Using Non-Directional Electromagnetic Measurements in High Angle or Horizontal Wells 有权
    用于在大角度或水平井中使用非定向电磁测量来确定地层特性的方法和装置

    公开(公告)号:US20160252643A1

    公开(公告)日:2016-09-01

    申请号:US15026234

    申请日:2014-10-02

    CPC classification number: G01V3/28 G01V3/30 G01V3/38

    Abstract: Embodiments set forth in this disclosure providing techniques for determining formation parameters, such as horizontal resistivity (Rh), vertical resistivity (Rv), and dip, in high angle and horizontal wells using non-directional resistivity measurements. For example, a method is provided that may include using an electromagnetic logging tool to acquire non-directional resistivity measurements in a wellbore of a high angle or horizontal well. The method may also include defining a processing window that corresponds to a measurement point of the electromagnetic logging tool along a well trajectory that intersects a at least one bed boundary between two layers of a subsurface formation. The method may also include defining a formation structure and defining an initial set of formation parameters for each layer in the formation structure. Furthermore, the method may include inverting the formation parameters for each layer.

    Abstract translation: 在本公开中提出的实施例提供了使用非方向电阻率测量来确定高角度和水平井中的地层参数(例如水平电阻率(Rh)),垂直电阻率(Rv)和倾角的技术。 例如,提供了一种方法,其可以包括使用电磁测井工具在高角度或水平井的井眼中获取非方向电阻率测量。 该方法还可以包括定义对应于电磁测井工具的测量点的处理窗口沿着与地下地层的两层之间的至少一个床边界相交的井轨迹。 该方法还可以包括限定地层结构并且为地层结构中的每个层定义初始的地层参数集合。 此外,该方法可以包括颠倒每层的地层参数。

    Formation Evaluation Using Stochastic Analysis Of Log Data
    7.
    发明申请
    Formation Evaluation Using Stochastic Analysis Of Log Data 有权
    日志数据随机分析的形成评估

    公开(公告)号:US20160230548A1

    公开(公告)日:2016-08-11

    申请号:US15021079

    申请日:2014-09-16

    Abstract: A method for determining a volume of a constituent(s) in a geological formation may include generating an equation of state based upon log measurements for the geological formation, with the equation of state providing a correlation between the log measurements, determining a quality factor for the equation of state, and for each of a plurality of different constituents expected to be in the formation, determining a constituent compliance factor for each of the constituents. The method may further include determining an uncertainty for each constituent compliance factor, determining a likelihood that each constituent is present in the formation based upon the quality factor, the constituent compliance factor for the constituent, and the uncertainty for the constituent compliance factor, generating a volumetric model based upon the log measurements and the determined likelihoods of the constituents in the formation, and determining the volume of the constituent(s) based upon the volumetric model.

    Abstract translation: 用于确定地质构造中的成分的体积的方法可以包括基于地质构造的对数测量生成状态方程,其中状态方程提供对数测量之间的相关性,确定 状态方程式,以及预期在形成中的多种不同成分中的每一种,确定每个成分的成分顺应因子。 该方法还可以包括确定每个构成顺应性因子的不确定性,基于质量因子确定每个成分存在于组合中的可能性,组成成分的构成顺应因子以及组成顺应因子的不确定性,生成 基于对数测量和确定组合物在地层中的可能性的体积模型,以及基于体积模型确定组分的体积。

    Method for determining petrophysical properties from logging measurements

    公开(公告)号:US10451769B2

    公开(公告)日:2019-10-22

    申请号:US15005666

    申请日:2016-01-25

    Abstract: A method for transforming a 2D or 3D earth volume geometry into a 1D earth volume geometry includes performing a measurement using the measurement sensor in a wellbore. A layer boundary in the 2D or 3D earth volume geometry that is nearest to the measurement sensor is identified. A vector from the measurement sensor is generated toward the nearest layer boundary. A first intersection is identified between the vector and the nearest layer boundary, and a second intersection is identified between the vector and another layer boundary. Simulated boundaries that extend through the first and second intersections and are perpendicular to the vector are generated. The 1D earth volume geometry that is bounded by the first and second intersections is identified. A property value is extracted from the 2D or 3D earth volume geometry between the first and second intersections. The property value is assigned to the 1D earth geometry.

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