Multi-source data inversion method, device and equipment and storage medium

Abstract

The embodiment of the invention discloses a multi-source data inversion method, device and equipment and a storage medium. The method is applied to a linear observation device. The linear observationdevice comprises a single-component detector used for collecting vertical components. Vertical component data is obtained through the single-component detector; the vertical component data comprises active source data and passive source data; an active source frequency dispersion curve is obtained according to the active source data; an analog frequency dispersion curve is determined based on theactive source frequency dispersion curve; a passive source frequency dispersion curve is obtained according to the passive source data; an objective function of active source data and passive source data joint inversion is determined based on the analog frequency dispersion curve, the passive source frequency dispersion curve and the active source frequency dispersion curve; the objective functionrepresents the correlation between the passive source frequency dispersion curve and the analog frequency dispersion curve and the similarity between the active source frequency dispersion curve andthe analog frequency dispersion curve; a target speed model is determined according to the objective function and the active source frequency dispersion curve; the target speed model represents the corresponding relation between the depth and the speed of the stratum.

Description

technical field [0001] The invention relates to the technical field of seismic exploration and detection, in particular to a multi-source data inversion method, device, equipment and storage medium. Background technique [0002] When using a linear arrangement device, it can collect both active source surface wave and passive source surface wave data synchronously, which has the following characteristics: [0003] 1) There is a difference in the surface wave velocity obtained by the active source surface wave and the passive source surface wave of the linear observation device [0004] When the "embedded triangle" device is used, because of the uniform distribution of the measuring points in the direction, coupled with its multi-layer nesting design, the signal obtained by the device has the uniformity of direction and frequency band, which satisfies the theory of stationary random process, and the obtained The dispersion curve velocity can be regarded as the real surface w...

AI Technical Summary

Problems solved by technology

[0007] In actual work, due to the need for one-time exploration at different depths and the convenience of operation, the joint exploration of active source and passive source of linear observation devices has become the choice of more people, but in the application, the speed difference extracted by the two is very important to the actual Difficulties in production

However, there is currently no effective solution to this problem

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