Effect of Supercritical CO2–Water–Shale Interaction on Pore Evolution and Oil Composition
Chenrui Wang,
Caspar Daniel Adenutsi,
Shuai Zheng
et al.
Abstract:Supercritical CO 2 (ScCO 2 ) soaking significantly impacts pore structure evolution and oil composition in tight shale oil reservoirs. This study conducted static soaking experiments under actual reservoir temperature and pressure, and the brine and deionized water were used as control fluids. The variations in pore structures and properties are characterized using scanning electron microscopy (SEM), X-ray diffraction, low-field nuclear magnetic resonance core analysis system, low-temperature nitrogen adsorpti… Show more
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