2013 SEG Annual Meeting,
2013. Society of Exploration Geophysicists
0 in the last 30 days
24 since 2007
Show more detail
Three-dimensional frequency-domain full waveform inversion of fixed-spread data can be efficiently performed in the visco-acoustic approximation when seismic modeling is based on a sparse direct solver. We present a new algebraic Block Low-Rank (BLR) multifrontal solver which provides an approximate solution of the time-harmonic wave equation with a reduced operation count, memory demand and volume of communication relative to the full-rank solver. We show some preliminary simulations in the 3D SEG/EAGE overthrust model, that give some insights on the memory and time complexities of the low-rank solver for frequencies of interest in full-waveform inversion (FWI) applications.
Number of Pages
Looking for more?
Some of the OnePetro partner societies have developed subject- specific wikis that may help.