Marchenko Green function reconstruction method and system based on MPI

The invention provides a Marchenko Green function reconstruction method and system based on MPI, and belongs to the field of seismic data pre-stack depth migration imaging. The method is based on MPI, takes an initial Green function and corrected seismic data as input, performs parallel task divisio...

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Bibliographic Details
Main Authors BAI YINGZHE, HAN DONG, CUI YUE, LI BO
Format Patent
LanguageChinese
English
Published 03.05.2022
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention provides a Marchenko Green function reconstruction method and system based on MPI, and belongs to the field of seismic data pre-stack depth migration imaging. The method is based on MPI, takes an initial Green function and corrected seismic data as input, performs parallel task division according to coordinates of an underground focus point, and performs numerical solution on a Marchenko equation by an iterative inversion method to obtain an uplink Green function and a downlink Green function. By means of the Marchenko green function reconstruction method, the calculation efficiency of Marchenko green function reconstruction is greatly improved. 本发明提供了一种基于MPI的Marchenko格林函数重构方法及系统，属于地震资料叠前深度偏移成像领域。该方法基于MPI，以初始格林函数和校正后的地震数据作为输入，按照地下的聚焦点的坐标进行并行任务划分，以迭代反演的方法对Marchenko方程进行数值求解得到上行格林函数和下行格林函数。利用本发明大幅提升了Marchenko格林函数重构的计算效率。
Bibliography:Application Number: CN202011076701