Oilfield reservoir saturation and permeability modeling

    公开(公告)号:US11066905B2

    公开(公告)日:2021-07-20

    申请号:US15572786

    申请日:2016-06-24

    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.

    Oilfield Reservoir Saturation and Permeability Modeling

    公开(公告)号:US20180119523A1

    公开(公告)日:2018-05-03

    申请号:US15564732

    申请日:2016-04-07

    Abstract: A method and system for modeling saturation in a reservoir that includes obtaining capillary pressure data representing capillary pressure in a reservoir, obtaining permeability data representing permeability in the reservoir, determining a number of pore throats represented by the capillary pressure data, creating a set of hyperbolic tangents equal in number to the number of pore throats, combining the set of hyperbolic tangents to create a curve to fit the capillary pressure data and to define a set of hyperbolic tangent parameters, combining at least one of the hyperbolic tangent parameters with the permeability data to define a saturation height function, modeling USER a saturation in the reservoir using the saturation height function, and displaying the saturation model based on the saturation height function.

    Well-Log Interpretation Using Clustering
    7.
    发明申请

    公开(公告)号:US20200183042A1

    公开(公告)日:2020-06-11

    申请号:US16614783

    申请日:2018-05-22

    Abstract: Computing systems, computer-readable media, and methods interpreting well logs, of which the method includes receiving data that comprises one or more well logs acquired using a tool disposed at a plurality of depths 423 in a bore in a subterranean environment, partitioning the data into segments, the individual segments containing data points, representing the segments as representative points in a parameter domain, determining reachability distances for the representative points in the parameter domain, initializing a cluster based on the reachability distances, identifying one or more segments as part of the cluster, and determining a physical feature represented in the one or more well logs based on the cluster.

    Systems and methods for determining relative geochemical data

    公开(公告)号:US10482996B2

    公开(公告)日:2019-11-19

    申请号:US14267042

    申请日:2014-05-01

    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.

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