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    METHODS AND SYSTEMS FOR SEISMIC MODELING USING MULTIPLE SEISMIC SOURCE TYPES
    1.
    发明公开
    METHODS AND SYSTEMS FOR SEISMIC MODELING USING MULTIPLE SEISMIC SOURCE TYPES 审中-公开
    用多种震源类型进行地震模拟的方法和系统

    公开(公告)号：EP2932304A1

    公开(公告)日：2015-10-21

    申请号：EP13862584.3

    申请日：2013-12-10

    申请人： Landmark Graphics Corporation

    发明人： JIN, Shengwen ,  JIANG, Fan ,  REN, Yiqing

    IPC分类号： G01V1/28 ,  G06F19/00

    CPC分类号： G01V99/005 ,  G01V99/00 ,  G01V2210/67

    摘要： Seismic Modeling Using Multiple Seismic Sources. At least some of the illustrative embodiments are methods including: simulating an effect of multiple seismic sources concurrently on a geologic formation, the simulating by: reading data from a seismic source file, wherein the seismic source file describes at least two seismic source types; modeling, by a computer system, the concurrent propagation of acoustic energy from the at least two seismic sources types through the geologic formation; and generating a seismic output file.

    摘要翻译： 多震源地震建模。 至少一些说明性实施例是这样的方法，包括：同时模拟多个地震源对地质构造的影响，所述模拟通过：从地震源文件读取数据，其中所述地震源文件描述至少两个地震源类型; 通过计算机系统对来自至少两种地震源类型的声能同时传播通过地质构造进行建模; 并生成地震输出文件。

    SENSITIVITY KERNEL-BASED MIGRATION VELOCITY ANALYSIS IN 3D ANISOTROPIC MEDIA
    2.
    发明公开
    SENSITIVITY KERNEL-BASED MIGRATION VELOCITY ANALYSIS IN 3D ANISOTROPIC MEDIA 审中-公开
    在各向异性3D媒体的基于内核的敏感偏移速度分析

    公开(公告)号：EP2678716A1

    公开(公告)日：2014-01-01

    申请号：EP12749070.4

    申请日：2012-02-23

    申请人： Landmark Graphics Corporation

    发明人： XIA, Fan ,  REN, Yiqing ,  JIN, Shengwen

    IPC分类号： G01V1/30

    CPC分类号： G01V1/282 ,  G01V1/301 ,  G01V1/303 ,  G01V11/00 ,  G01V2210/47 ,  G01V2210/51 ,  G01V2210/6222 ,  G01V2210/626 ,  G01V2210/64

    摘要： Seismic imaging systems and methods that employ sensitivity kernel-based migration velocity analysis in 3D anisotropic media may demonstrate increased stability and accuracy. Survey data analysts employing the disclosed systems and methods are expected to provide better images of the subsurface and be better able to identify reservoirs and deposits for commercial exploitation. Certain embodiments migrate seismic survey data with an anisotropic velocity model to obtain common angle image gathers. These gathers are processed to obtain depth residuals along one or more horizons. Angle-domain sensitivity kernels are used to convert the depth residuals into velocity errors, which are then used to refine the velocity model. A user is then able to view a representation of the subsurface structure determined in part from the refined velocity model. Multiple iterations may be needed for the velocity model to converge. The velocity model may be a layered to have constant velocity values between formation boundaries.