Gary D. Couples

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The lattice Boltzmann (LB) method has proven to be a promising method for simulating fluid dynamics in porous media. When fluid flow in pores is the only concern, a standard LB implementation, which stores one or two sets of particle distribution functions (PDFs) for both pore and solid cells, wastes a large amount of memory, especially for low-porosity(More)
A natural fault damage zone (FDZ) often contains many small, thin faults that form complex arrays. Because the small faults reduce the permeability in most siliciclastic rock types, FDZs can have a major impact on fluid flow behaviours at reservoir or aquifer scales. Numerical flow modelling techniques, which are often used to predict the impact of such(More)
We develop a novel method to extract pore networks from 3D rock images containing fractures, which occur in reservoir rocks such as carbonates. Similar to the medial axis for ordinary pores, a new definition of the medial surface is introduced to locate and quantify fractures. The medial surface is generated by shrinking the pore space, while preserving the(More)
Unexpected, low production rates in a geothermal well can occur due to several causes: e.g. formation damage, completion effects or lack of connectivity to main fluid conduits. Stimulation treatments have been successfully applied in many cases to increase the well production rate to commercial levels. These stimulation techniques were originally developed(More)
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