Acknowledgements
We acknowledge Shell for financial support and for providing the
digital rock images. This study has mostly been performed using the
Sherlock cluster at Stanford University. We are grateful to Stanford
University and the Stanford Research Computing Center for providing
computational resources and support in this research. We acknowledge the
sponsors of the Stanford Center for Earth Resources Forecasting (SCERF)
and support from Prof. Steve Graham, the Dean of the Stanford School of
Earth, Energy and Environmental Sciences. The authors also would like to
thank Math2Market for providing the GeoDict software.