Speaker
Description
A computational-efficient method to calculate capillary pressure-saturation relations of immiscible, multiphase flow on two-dimensional pore morphologies is presented here. The method is an extension of the Pore Morphology Method that includes wetting angle and trapped mechanism of the displaced fluid. After validating the method with micro-chip fluid injection experiments, the method is used to relate pore morphology to capillary pressure-saturation relation using square-lattice pore morphologies. Because the method uses only morphological binary operations, it is more efficient than well-established high-resolution voxel dynamics methods such as Lattice Boltzmann Methods and Level-set computational fluid dynamics. Apart from pore morphology, only the material parameters related to contact angle (wettability) and interfacial tension, are required to connect the pore-saturation relation and pore throat distribution. We investigate the effect on interfacial tension, wettability, and sample size and pore throat distribution on entry pressure and residual saturation.
| References | 1. Hilpert, Markus, and Cass T. Miller. "Pore-morphology-based simulation of drainage in totally wetting porous media." Advances in water resources 24.3-4 (2001): 243-255. 2. Rabbani, Arash, Saeid Jamshidi, and Saeed Salehi. "An automated simple algorithm for realistic pore network extraction from micro-tomography images." Journal of Petroleum Science and Engineering 123 (2014): 164-171. |
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| Country | Saudi Arabia |
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