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[2015-06-03]


[2015-06-03]

Efficient Finite-difference Modelling of Acoustic Wave Propagation in Anisotropic Media with Pseudo-sources

This work proposes a technique for deriving fast finite-difference algorithms for numerical modelling of acoustic wave propagation in anisotropic media....display full article text


Fast Finite-difference method for wave propagation in anisotropic media


[2015-06-03]


[2015-06-03]

Time-lapse FWI with Total-variation Regularization

We present a technique for reconstructing production-induced subsurface velocity model changes from time-lapse seismic data using simultaneous full-waveform inversion (FWI) and total-variation regularization....display full article text


4DFWI+TV


[2014-12-30]


[2014-12-30]

Pressure Inversion from Geomechanical Data

Link to my AGU 2014 presentation on a stable computational technique for inverting induced reservoir pressure change from surface tilt and uplift measurements.



[2014-09-09]


[2014-09-09]

Joint inversion of time-lapse seismic datasets

Joint full-waveform inversion of time-lapse seismic datasets with model-difference regularization is a promising new technique for identifying production-induced changes within hydrocarbon reservoirs and in the overburden. The proposed technique achieves robust inversion of velocity changes in the presence of challenging survey repeatability issues.

Check out the abstract of my upcoming presentation at the annual meeting of the Society of Exploration Geophysicists in Denver, 26-31 October, 2014. Visit the Technology section for a poster presentation explaining how cross-updating achieves artifact reduction.


Joint full-waveform inversion of time-0lapse seismic data sets


[2013-12-10]


[2013-12-10]

One-way Modeling of Elastic Wave Propagation

Link to the AGU 2013 presentation on a new, computationally efficient technique for numerical extrapolation of elastic wave-fields. The proposed method can be applied to a variety of problems, from global to exploration seismology.




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