Inversion method, system and device and storage medium
The invention provides an inversion method, system and device and a storage medium. The inversion method comprises the following steps: acquiring a sharp pulse longitudinal wave impedance reflectivity inversion result of a target area by utilizing pre-stack sparse layer inversion based on Fatti appr...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
22.02.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides an inversion method, system and device and a storage medium. The inversion method comprises the following steps: acquiring a sharp pulse longitudinal wave impedance reflectivity inversion result of a target area by utilizing pre-stack sparse layer inversion based on Fatti approximation; determining a vertical position vector of non-zero reflectivity based on the longitudinal wave impedance reflectivity inversion result; based on the vertical position vector of the non-zero reflectivity, constructing an interface constraint matrix; and performing least square inversion based on Russell approximation by taking the constructed interface constraint matrix as a constraint to obtain one or a combination of two of a fluid factor inversion result, a shear modulus inversion result and a density inversion result. According to the method, the problem of poor stability of conventional pre-stack sparse layer inversion based on Russell approximation is effectively solved, and a high-precision and hig |
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Bibliography: | Application Number: CN202010849459 |