Pre-stack seismic inversion method and device based on frequency-varying solid-liquid decoupling fluid factor

The embodiment of the invention provides a pre-stack seismic inversion method and device based on a frequency-varying solid-liquid decoupling fluid factor. The method comprises the following steps: acquiring a seismic record of a target reservoir; performing frequency division processing on the seis...

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Bibliographic Details
Main Authors BIAO FANGSHU, YAN XINFEI, YANG ZHIFANG, CAO HONG, ZONG ZHAOYUN, YIN XINGYAO
Format Patent
LanguageChinese
English
Published 03.07.2020
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The embodiment of the invention provides a pre-stack seismic inversion method and device based on a frequency-varying solid-liquid decoupling fluid factor. The method comprises the following steps: acquiring a seismic record of a target reservoir; performing frequency division processing on the seismic record to obtain seismic amplitude information of different frequency bands; performing sparse pulse inversion on the seismic amplitude information of different frequency bands to obtain a frequency-varying elastic impedance data volume; obtaining a frequency-varying elastic impedance equation;substituting the frequency-varying elastic impedance data volume into the frequency-varying elastic impedance equation, and extracting a frequency-varying solid-liquid decoupling fluid factor; and carrying out inversion on the frequency-varying solid-liquid decoupling fluid factor to obtain fluid distribution of the target reservoir. According to the embodiment of the invention, the frequency-varying solid-liquid decoupli
Bibliography:Application Number: CN201811602993