Characterizing the Microscopic Anisotropic Permeabilities of Tight Oil Reservoirs Impacted by Heterogeneous Minerals

This study aimed to reveal the anisotropic permeabilities of tight oil reservoirs impacted by heterogeneous minerals. SEM imaging, image processing, fractal calculation, microscopic reservoir modeling, and visual flow simulation were carried out investigate above problems. Results show that variation coefficient two-dimensional permeability for studied samples ranges from 0.09 0.95, with an average value 0.68. The penetration 1.16 2.64, 2.13. ratio maximum minimum is between 1.25 7.67, 5.62. fluid in has significant anisotropy comprising dominant through conductive channels. Flow tends involve minor hydraulic fracturing no proppant.