Gas–water percolation of tight sandstone reservoirs with different pore types in the Ordos Basin
Jie He,
Bozun Liu,
Shiying Shao
et al.
Abstract:To investigate the percolation mechanism of tight sandstone reservoirs, qualitative and quantitative methods are applied to analyze the pore structure of the Ordos Basin through scanning electron microscopy and high-pressure mercury injection. Based on gas–water relative permeability data and the visualization of real sandstone models, a gas–water displacement experiment was carried out to simulate the percolation mechanism and fluid distribution of different pore types. The results show that: ① The percolatio… Show more
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