Seismic scattered wave field forward modeling method and device, medium, electronic equipment and product
By combining the Müller model and higher-order generalized screen extension operator in the seismic wave field forwarding, iterative calculations are performed along different propagation directions, the simulation error problem caused by the lateral strong scattering medium in the sticky sound medium is solved, and the accuracy of the seismic wave field forwarding is improved.
CN120044590APending Publication Date: 2025-05-27SHENHUA GUONENG ENERGY GRP +1
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Patent Information
- Application Number
- CN202510078954.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-05-27
AI Technical Summary
Technical Problem
In the case where there is a lateral strong scattering medium in the prior art, the error of the seismic wave field forward simulation is large, and the propagation characteristics of the wave cannot be effectively described.
Method used
The higher-order generalized screen extension operator based on the Müller model is used to calculate the scattered wave field along different propagation directions. By dividing the velocity model into multiple thin layers, the operator operation is iteratively performed to obtain downlink and uplink scattered wave data.
Benefits of technology
The adaptability of the operator is improved and the accuracy of seismic wavefield forward simulation in the presence of a lateral strong scattering medium in the medium is enhanced.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a seismic scattered wave field forward modeling method and device, a medium, electronic equipment and a product, and the method comprises the steps: dividing a speed model into a plurality of thin layers from the top of the model to the bottom of the model in a depth direction, acquiring downlink scattered wave data and primary uplink scattered wave data corresponding to each thin layer in a first propagation direction from the top of the model to the bottom of the model along a second propagation direction by using a high-order generalized screen continuation operator based on the Muller model, primary uplink scattered wave data reserved in the first direction is used as an initial value, primary uplink scattered wave data corresponding to each thin layer in the second propagation direction is obtained through the high-order generalized screen continuation operator, and the second propagation direction is the direction from the bottom of the model to the top of the model; and determining a forward modeling seismic record of the detector position according to the uplink scattered wave data corresponding to each thin layer in the second propagation direction. According to the method, the accuracy of forward modeling of the seismic scattered wave field in the viscoacoustic medium can be improved.
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