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INVERSION METHOD FOR RAY ELASTIC PARAMETER
INVERSION METHOD FOR RAY ELASTIC PARAMETER
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机译：射线弹性参数的反演方法
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摘要
An inversion method for a ray elastic parameter. The method comprises: collecting seismic data and logging data of an exploration area (S101), wherein the logging data comprises depth data, density data, longitudinal wave speed data and transverse wave speed data; according to the seismic data, converting the logging data from a depth domain to a time domain (S102); according to the logging data, obtained through conversion, of the time domain, determining a ray elastic impedance corresponding to a plurality of incident angles of a well point position (S103); according to the ray elastic impedance and the seismic data, determining a cross section of the ray elastic impedance corresponding to the plurality of incident angles (S104); and according to the cross section of the ray elastic impedance corresponding to the plurality of incident angles, determining a reservoir elastic parameter (S105). The inversion method can accurately and rapidly solve an elastic parameter without a multiplicity of solutions, and can be suitable for gathered seismic data with a large incident angle and satisfy the requirements for oil-gas seismic exploration.
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