Data for drainage capillary pressure distribution and fluid displacement in a heterogeneous laminated sandstone

Qingyang Lin, Branko Bijeljic & Martin Blunt
We applied three-dimensional X-ray microtomography to image a capillary drainage process (0-1000 kPa) in a cm-scale heterogeneous laminated sandstone containing three distinct regions with different pore sizes to study the capillary pressure. We used differential imaging to distinguish solid, macro pore and five levels of sub-resolution pore phases associated with each region. The brine saturation distribution was computed based on average CT values. The non-wetting phase displaced the wetting phase in order of pore size...
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