Imaging the exploding converter with elastic propagators
Published in
71st EAGE Conference & Exhibition
Date of publication
08 June 2009
Abstract
Since the Earth is elastic, it is worth the computational burden to process multicomponent data for elastic phenomena with fully coupled time-domain wave-equation propagators. At every time sample in the back-propagatedmodel domain, the complete wave field can be decomposed exactly into compressional and shear wave components by simple spatial derivatives. Then, physically significant images are extracted from extrapolated hyper-cubes by applying appropriate imaging conditions. For subsurfacesource location, the imaging condition required is the correlation of P and S energy since only at the source location are the two event scollocated. The impulse response of the algorithm is anti-symmetric in physical space and can be enhanced through post-processing with a spatial derivative or integral.
