Reflection seismic waveform tomography of physical modelling data

An integrated inversion of seismic refraction and reflection data using combined wave-equation tomography and full waveform inversion

We have developed an integrated method to obtain highresolution subsurface elastic parameters using combined wave equation tomography (WET) and full waveform inversion (FWI). Both refraction and reflection data are used. During parameterization, long wavelength and short wavelength structures are separated and mapped into velocity and density to account for kinematics and dynamics, respectively...

Full waveform inversion of reflection seismic data for ocean temperature profiles

[i] We show that ocean temperature profiles can be accurately recovered using only acoustic methods employed at the sea surface. Using a towed air gun array and a hydrophone streamer, thermohaline boundaries are ensonified at a suite of frequencies and angles, yielding travel time trajectories and reflectivities. These data are inverted via full waveform inversion to estimate sound speed and, s...

Pre-stack full waveform inversion of ultra-high-frequency marine seismic reflection data

application of seismic waveform tomography in an engineering seismic cross-hole study

seismic tomography is an imaging technique which creates maps of subsurface elastic properties such as p/s wave velocity, density and attenuation, based on observed seismograms and use of sophisticated inversion algorithms. amongst different acquisition geometries, seismic cross-hole tomography has a special position in geophysical surveys with many applications in hydrocarbons, coal and other ...

Processing of Seismic Reflection Data Using MATLAB

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