Joint inversion of simultaneous source time-lapse seismic data sets

future directions

A more robust minimization such as L1 will likely yield better quality results than those shown in this paper. We anticipate that a combination of L1-minimization (including both data and model re-weighting) with our preconditioners will lead to a robust inversion scheme for simultaneous source time lapse data sets.

marm-nocoded-mig4d,marm-encoded-mig4d,marm-encoded-inv4d
Figure 5. (a) Single source migrated time-lapse image. Simultaneous source (b) migrated and (c) inverted time-lapse images. Note the cross-term artifacts in (b).[CR]

marm-encoded-mig-rep-lab,marm-encoded-inv-rep-lab
Figure 6. Weighted RMS difference between the baseline and monitor images obtained via (a) migration and (b) inversion. Note that inversion attenuates the non-repeatbaility RMS energy and preserves preserving the production-related change.[CR]

Joint inversion of simultaneous source time-lapse seismic data sets