Inversion based on L2 norm has been widely used in geophysical problems. However, L2 inversion is only capable of recovering smooth features. To obtain sharp boundaries, non-L2 inversion has been used successfully. In reality, however, both smooth and blocky features can be present in the subsurface physical property or interfaces to be recovered. To deal with this situation, we propose a new m...

a r t i c l e i n f o Robust earthquake source parameters (e.g., location, seismic moment, fault geometry) are essential for reliable seismic hazard assessment and the investigation of large-scale tectonics. They are routinely estimated using a variety of data and techniques, such as seismic data and, more recently, Interferometric Synthetic Aperture Radar (InSAR). Comparisons between these two...

In this work, we applied a Bayesian time-lapse (4D) seismic inversion to deep-water heavy oil field located in the Campos Basin (Brazil). procedure, differences of amplitudes baseline and repeated surveys are input calculate changes acoustic impedances. To ensure quality results, parametrization was performed by analyzing anomalies resolution signal-to-noise ratio with different values paramete...

Many currently proposed seismic inversion techniques that focus on robustness with respect to the background model choice are not appropriate for large-scale 3D applications, and methods computationally feasible industrial problems, such as full-waveform inversion, notoriously limited by convergence stagnation require adequate starting models. We have developed a novel solution is scalable less...