Oilfield Reservoir Saturation and Permeability Modeling

    公开(公告)号:US20180119524A1

    公开(公告)日:2018-05-03

    申请号:US15572786

    申请日:2016-06-24

    CPC classification number: E21B41/0092 E21B47/06 E21B49/00 G06F17/13

    Abstract: A method for modelling saturation in a reservoir, comprising: obtaining capillary pressure data representing capillary pressure in the reservoir; obtaining permeability data representing permeability in the reservoir; determining a number of pore throats represented by the capillary pressure data; creating hyperbolic tangents based on the capillary pressure data equal in number to the number of pore throats; combining hyperbolic tangents to create a curve to fit the capillary pressure data and to define hyperbolic tangent parameters; combining at least one of the hyperbolic tangent parameters with the permeability data to define a saturation height function; modelling a saturation in the reservoir using the saturation height function; and displaying the saturation model based on the saturation height function. The determination of the number of pore throats may comprise creating an initial capillary pressure curve using a predetermined number of multiple linked hyperbolic tangents, determining a first derivative of the capillary pressure curve, and determining a number of local minima in the capillary pressure curve.

    SYSTEMS AND METHODS FOR DETERMINING RELATIVE GEOCHEMICAL DATA
    12.
    发明申请
    SYSTEMS AND METHODS FOR DETERMINING RELATIVE GEOCHEMICAL DATA 审中-公开
    用于确定相对地球化学数据的系统和方法

    公开(公告)号:US20140330518A1

    公开(公告)日:2014-11-06

    申请号:US14267042

    申请日:2014-05-01

    CPC classification number: G16C20/20 G01V9/00

    Abstract: Systems, media, and methods for determining relative geochemical data are provided. Measurement data may be received that is indicative of relative yields of a plurality of chemical components in a rock formation. First absolute yields of at least a portion of the plurality of chemical components in a presence of 100% of a first volumetric component in the rock formation may be determined. Second absolute yields of at least a portion of the plurality of chemical components in a presence of 100% of a second volumetric component in the rock formation may also be determined. A volume of the first volumetric component, a volume of the second volumetric component, and a sum of yields of the plurality of chemical components may be determined using the first and second absolute yields and the relative yields.

    Abstract translation: 提供了用于确定相对地球化学数据的系统,介质和方法。 可以接收指示岩层中多个化学成分的相对产量的测量数据。 可以确定在岩层中存在100%的第一体积分量的多个化学组分的至少一部分的第一绝对收率。 也可以确定在岩层中存在100%第二体积分量的多种化学组分中的至少一部分的第二绝对收率。 第一体积分量的体积,第二体积分量的体积和多个化学成分的产量之和可以使用第一和第二绝对收益率和相对收益率来确定。

    AUTOMATIC FLUID CODING AND HYDRAULIC ZONE DETERMINATION
    13.
    发明申请
    AUTOMATIC FLUID CODING AND HYDRAULIC ZONE DETERMINATION 审中-公开
    自动流体编码和液压区域测定

    公开(公告)号:US20130317752A1

    公开(公告)日:2013-11-28

    申请号:US13901844

    申请日:2013-05-24

    CPC classification number: G01V11/002 E21B49/008 G06F17/18

    Abstract: Systems, methods, and media for processing formation pressure test data are provided. The method includes determining using a processor, a plurality of regressions for measurements of the formation pressure test data, and determining that two or more of the plurality of regressions represent a fluid code. The method also includes combining the two or more of the plurality of regressions representing the fluid code to generate a first fluid-type regression, and combining two or more other ones of the plurality of regressions representing a second fluid code to generate a second fluid-type regression. The method further includes determining that the first fluid-type regression and the second fluid-type regression are in a first hydraulic zone, and calculating a location of a boundary between the first fluid-type regression and the second fluid-type regression by extrapolating the first and second fluid-type regressions to a point of intersection therebetween.

    Abstract translation: 提供了用于处理地层压力测试数据的系统,方法和介质。 该方法包括使用处理器确定多个用于测量地层压力测试数据的回归,以及确定多个回归中的两个或更多个代表流体代码。 该方法还包括组合表示流体代码的多个回归中的两个或更多个回归以产生第一流体类型回归,并且组合表示第二流体代码的多个回归中的两个或更多个其他回归以产生第二流体 - 类型回归。 该方法还包括确定第一流体类型回归和第二流体类型回归在第一水力区中,以及通过外推第一流体类型回归和第二流体类型回归之间的边界的位置来计算 第一和第二流体类型回归到它们之间的交叉点。

    Electrofacies determination
    14.
    发明授权

    公开(公告)号:US11156740B2

    公开(公告)日:2021-10-26

    申请号:US15778212

    申请日:2016-12-07

    Abstract: A method for includes obtaining a well log comprising a sequence of measurements of a wellbore in a field, and generating change points in the well log based on the sequence of measurements. Each of the change points corresponds to a depth along the wellbore where a probability distribution of the well log changes. The method further includes generating a statistic for each of multiple intervals in the well log, where the intervals are defined by the plurality of change points, categorizing the intervals based on the statistic for each of the intervals to generate categorized intervals, and performing the operation based on the categorized intervals.

    Automatic fluid coding and hydraulic zone determination

    公开(公告)号:US10444402B2

    公开(公告)日:2019-10-15

    申请号:US13901844

    申请日:2013-05-24

    Abstract: Systems, methods, and media for processing formation pressure test data are provided. The method includes determining using a processor, a plurality of regressions for measurements of the formation pressure test data, and determining that two or more of the plurality of regressions represent a fluid code. The method also includes combining the two or more of the plurality of regressions representing the fluid code to generate a first fluid-type regression, and combining two or more other ones of the plurality of regressions representing a second fluid code to generate a second fluid-type regression. The method further includes determining that the first fluid-type regression and the second fluid-type regression are in a first hydraulic zone, and calculating a location of a boundary between the first fluid-type regression and the second fluid-type regression by extrapolating the first and second fluid-type regressions to a point of intersection therebetween.

    Electrofacies Determination
    17.
    发明申请

    公开(公告)号:US20180348398A1

    公开(公告)日:2018-12-06

    申请号:US15778212

    申请日:2016-12-07

    CPC classification number: G01V11/00 G01V2210/6167 G01V2210/6169 G01V2210/66

    Abstract: A method for includes obtaining a well log comprising a sequence of measurements of a wellbore in a field, and generating change points in the well log based on the sequence of measurements. Each of the change points corresponds to a depth along the wellbore where a probability distribution of the well log changes. The method further includes generating a statistic for each of multiple intervals in the well log, where the intervals are defined by the plurality of change points, categorizing the intervals based on the statistic for each of the intervals to generate categorized intervals, and performing the operation based on the categorized intervals.

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