Seismic Wavefield Tomography Implementation using Ray Tracing Method

The article discusses the implementation process of seismic wavefield tomography using ray tracing method. This methodology holds significant importance in the petroleum industry as it constitutes a crucial step in seismic data applications. Through ray tracing algorithms, we can model subsurface wave propagation by calculating seismic ray paths based on Fermat's principle and Snell's law, typically implemented using shooting or bending methods. The computational process involves solving the eikonal equation through finite-difference schemes to generate travel-time fields, enabling subsurface imaging of seismic wavefields. This approach provides vital information about subsurface structures and geological characteristics, which plays a guiding role in petroleum exploration and production. The obtained velocity models and structural images help enhance understanding of subsurface geological conditions, thereby improving the efficiency and accuracy of exploration and extraction operations. Key implementation aspects include ray path calculation, travel-time tomography inversion, and velocity model updating through iterative optimization techniques.