Now showing items 1-6 of 6
Numerical simulation of reactive flow and transport through the subsurface
Convection-dominated fluid transport problems have long resisted accurate and cost-effective numerical solutions. The near hyperbolic nature of the problem causes spurious oscillations in most numerical schemes or avoiding ...
A study of viscous effects in seismic modeling, imaging, and inversion: Methodology, computational aspects, and sensitivity
Real Earth media are anelastic, which affects both the kinematics and dynamics of propagating waves: Waves are attenuated and dispersed. If anelastic effects are neglected, inversion and migration can yield erroneous ...
On a transmission inverse problem
In crosswell seismic experiments, seismic sources are fired in one well, and the wave-fields generated are measured in another well. The goal of the crosswell seismology is to find physical parameters, especially the ...
Three-dimensional first arrival traveltimes and amplitudes via eikonal and transport finite difference solvers
First arrival traveltimes and associated amplitudes are essential components in Kirchhoff migration and modeling. Traditionally they have been determined by ray tracing. However ray tracing does not give traveltimes on a ...
Multiparameter inversion and energy source estimation for a reflection seismic experiment
Reflection seismologists illuminate the subsurface by introducing energy into the ground. These propagating waves encounter heterogeneities in the subsurface material and are partly reflected back up to the surface where ...
Global analysis of linearized inversion for the acoustic wave equation
To predict the location of natural resources and reduce the cost of exploration, geophysicists rely on various techniques to map the internal structure of the earth. One common mapping method probes the earth's interior ...