Projects

Projects

2D/2.5D seismic wave modelling in VEAM

  • Dr. Bing Zhou
  • This project applies advanced numerical methods and develop computer software to numerically simulate seismic wave propagations in 2D/2.5D/3D VEAM, which are often encountered in seismic exploration of carbonate reservoirs. The numerical simulations offer a useful tool for Geoengineers to characterize the wave propagation in such complex media and correctly process and interpret seismic data.

Computations of seismic wave velocities in VEAM

  • Dr. Bing Zhou
  • This project employs the complex-valued elastic moduli of rocks for the Christoffel equation and develops an accurate and efficient method to solve the Christoffel equation and obtain the complex-valued phase and group velocities. The imaginary parts of the wave velocities quantitatively define the attenuation of wave energy in VEAM, and become applicable for calculations of the real travel-times and imaginary travel-times (attenuation) of three wave modes: qP-, qSV- and qSH-wave in VEAM.

Seismic ray tracing and ray tomography in 2D/3D VEAM

  • Dr. Bing Zhou
  • Most seismic ray tracing methods cannot be applicable for VEAM due to using the assumption of elastic media. This project employs the complex-valued phase and group velocities to compute the real travel-times and imaginary travel-time (attenuation), as well as the ray-paths of three wave modes (qP, qSV, qSH) in 2D/3D VEAM. The developed new ray tracing methods becomes the fundamental part of seismic ray tomography to image subsurface viscoelastic anisotropic structures.

Seismic full-waveform inversion in 2D/3D VEAM

  • Dr. Bing Zhou
  • This project bases on newly-developed computer software of 2D/3D frequency-domain or time-domain seismic wave modeling in VEAM, and investigates the full-waveform inversion with the multi-components of seismic spectral data or time-sequence to image the 2D/3D subsurface geological structures. The multi-component data may be the vertical and horizontal amplitude spectra or time-sequences of all available common shot gathers, acquired from surface, or vertical seismic profiling, or cross-hole seismic surveys.