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3857 条记录 (耗时 0.041 秒)

    FULL-WAVEFORM INVERSION USING PARTIAL TIME SHIFTS AND ENHANCED KINEMATIC TRANSFORMS
    91.
    发明申请
    FULL-WAVEFORM INVERSION USING PARTIAL TIME SHIFTS AND ENHANCED KINEMATIC TRANSFORMS 有权

    公开(公告)号：US20220221603A1

    公开(公告)日：2022-07-14

    申请号：US17325851

    申请日：2021-05-20

    申请人： CGG SERVICES SAS

    发明人： Felix KPADONOU ,  Jeremie MESSUD

    IPC分类号： G01V1/28 ,  G01V1/30

    摘要： A permutation that optimizes correspondence between the seismic data and the simulated data is computed using a graph space optimal transport formulation-based misfit. The seismic data or simulated data are transformed into auxiliary data by applying a portion of time shifts computed from the optimal permutation before updating the structural model of the explored underground formation. The full-waveform inversion minimization of the distance between auxiliary data and the seismic data or simulated data to which partial time shifts have not been applied, may be embedded in a Kantorovich-Rubinstein norm.

    SUBSURFACE FLUID-TYPE LIKELIHOOD USING EXPLAINABLE MACHINE LEARNING
    93.
    发明申请
    SUBSURFACE FLUID-TYPE LIKELIHOOD USING EXPLAINABLE MACHINE LEARNING 有权

    公开(公告)号：US20220187484A1

    公开(公告)日：2022-06-16

    申请号：US17119181

    申请日：2020-12-11

    申请人： Landmark Graphics Corporation

    发明人： Samiran Roy ,  Shashwat Verma

    IPC分类号： G01V1/28 ,  G01V1/30

    摘要： A system is described for determining a likelihood of a type of fluid in a subterranean reservoir. The system may include a processor and a non-transitory computer-readable medium that includes instructions executable by the processor to cause the processor to perform various operations. The processor may receive pre-stack seismic data having seismically-acquired data elements for geometric locations in a subterranean reservoir. The processor may determine, using the pre-stack seismic data, input features for each geometric location and may execute a trained model on the input features for determining a likelihood of a type of fluid in the subterranean reservoir and for determining a list of features affecting the likelihood. The processor may subsequently output the likelihood and the list of features.

    Systems and methods for data acquisition design of source and receiver locations
    98.
    发明授权
    Systems and methods for data acquisition design of source and receiver locations 有权

    公开(公告)号：US11307317B2

    公开(公告)日：2022-04-19

    申请号：US16460582

    申请日：2019-07-02

    申请人： Saudi Arabian Oil Company

    发明人： Yimin Sun

    IPC分类号： G01V1/00 ,  G06F30/20 ,  G01V1/28

    摘要： Systems and methods, including computer-implemented systems and methods, for determining an optimized geometry of seismic sources and receivers in order to generate a desired dense wavefield. The systems and methods may include generating a simulated dense wavefield using a representative subsurface model; generating a set of preliminary acquisition plans according to constraints and the representative subsurface model, each preliminary acquisition plan defining a plurality of surface receivers operable to receive seismic signals; subsampling the target dense wavefield using the set of preliminary acquisition plans to produce a set of subsampled wavefields; reconstructing the set of subsampled wavefields according to a reconstruction scheme to produce a set of reconstructed dense wavefields; determining a degree of fidelity for each of the reconstructed dense wavefields; and selecting a preliminary acquisition plan having a degree of fidelity that satisfies a preselected criterion as an optimized acquisition plan.