Integrating conventional and digital rock physics

Monday, 15 December 2014: 4:45 PM
Christoph Hermann Arns1, Seyed M Alizadeh2, Saeid Norouzi Apourvari2, Igor Shikhov2, Nicolas Francois3, Shane Latham4, Jill Middleton4, Ajay Limaye5 and Tim Senden4, (1)University of New South Wales, Sydney, NSW, Australia, (2)University of New South Wales, Sydney, Australia, (3)Australian National University, Plasma Research Laboratory, Canberra, Australia, (4)Australian National University, Applied Mathematics, Canberra, Australia, (5)Australian National University, ANU Vizlab, Canberra, Australia
Understanding the relationship between different petrophysical variables as function of stress is an important goal in core analysis. Integrating digital core analysis and conventional measurements in a way that measurements are made on the same scale allows a direct comparison of experiment and numerical simulation. If boundary conditions for both experiments are matched and measurements agree, the solution of the numerical problem provides additional insights by considering categorical variables, over which field variables might be averaged. The approach is illustrated by full scale calculations on reservoir core plugs, targeting permeability as function of stress conditions, quantifying the contribution of micro-porosity to relative permeability, and by local analysis of NMR responses with applications to rock typing.