System and method for remaining resource mapping

    公开(公告)号:US09739902B2

    公开(公告)日:2017-08-22

    申请号:US13929190

    申请日:2013-06-27

    CPC classification number: G01V1/308 G01V2210/6122

    Abstract: A method for mapping remaining hydrocarbon resources in a subsurface reservoir, includes obtaining a map of seismic amplitude difference over a time period based on a survey of the subsurface reservoir, generating an expected trend dataset for the reservoir based on one or more non-water saturation effects detected over the time period by one or more wellbore surveillance techniques at one or more locations in the reservoir, correcting the map of seismic amplitude difference, at least in part, on the expected trend dataset to generate a corrected seismic amplitude map, and using the corrected seismic amplitude difference map to generate a map representative of remaining hydrocarbon resources in the reservoir. Embodiments include a system for performing the method and a medium containing computer executable software instructions for performing the method.

    SYSTEM AND METHOD FOR DIP-GUIDED SEISMIC IMAGE STACKING

    公开(公告)号:US20170176616A1

    公开(公告)日:2017-06-22

    申请号:US14975997

    申请日:2015-12-21

    CPC classification number: G01V1/306 G01V1/362 G01V2210/51 G01V2210/514

    Abstract: A method is described for seismic imaging of the subsurface using dip-guided optimized stacking. The method computes weighting functions for a plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images based on a slant stack performed using an input dip dataset; applying the plurality of weighting functions to the plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images, or a plurality of dip-filtered images to create a plurality of weighted images; and summing the plurality of weighted images into a stacked seismic image. The method may be executed by a computer system.

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