Written by: Alan Mur and Kester Waters
We present a technique that has been developed to allow basin simulation output to be used as an input to jointly invert seismic data for impedances and facies with a Bayesian simultaneous inversion. We demonstrate this using the SEAM pore pressure prediction dataset, which is a Gulf of Mexico inspired geological model. The model is comprised of a 3D vShale volume (volume proportion of shale, quartz is complimentary) that was constructed considering varying depositional settings and an active salt history (Fehler and Keliher 2011). The vShale model and geological horizons were used as an endpoint for a basin simulation that evolved smectite/illite ratio, temperature, porosity and effective pressure over a depositional period from the Cretaceous to the present.
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