In seismic full-waveform inversion (FWI), subsurface parameters are estimated by iteratively
minimizing the difference between the modeled and the observed data. We have considered …

Least-squares migration (LSM) can be effective to mitigate the limitation of finite-seismic
acquisition, balance the subsurface illumination, and improve the spatial resolution of the …

Localization of fractured areas is of primary interest in the study of oil and gas geology in
carbonate environments. Hydrocarbon reservoirs in these environments are embedded …

Traditional amplitude variation with offset and azimuth (AVOAz) analysis for fracture
characterization extracts fracture properties through analysis of reflection AVOAz to …

Characterizing fracture zones is crucial in geothermal exploration, drilling, and development.
We aim to characterize small-scale fractures with scales less than the seismic wavelength …

Fracture characterization in an oil or gas reservoir is very important for field development
and exploration because natural fracture systems can dominate the fluid drainage pattern in …

A theoretical foundation is developed for the active seismic reconstruction of fractures
endowed with spatially varying interfacial conditions (eg partially closed fractures, hydraulic …

Seismic interpretation of subsurface structures is traditionally performed without any account
of flow behavior. Here we present a methodology for characterizing fractured geologic …

Previous geological studies in the Basin and Range of the Western US have shown that
conventional geothermal systems are usually located in geological settings of intense …

Ultrasonic velocities were measured on a stack of synthetic materials (Plexiglass plates), at
low (90/120 kHz, long wavelength range: 12–23 mm) and high (431/480 kHz, short …