Yueli Feng1,2, Yuetian Liu1,2,*, Xiaolong Mao1,2, Jian Chen1,2
FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.2, pp. 371-393, 2022, DOI:10.32604/fdmp.2022.017534
Abstract This study clarifies the seepage characteristics of complex fractured pressure-sensitive reservoirs, and addresses a common technological problem, that is the alteration of the permeability degree of the reservoir bed (known to be responsible for changes in the direction and velocity of fluid flows between wells). On the basis of a new pressure-sensitive equation that considers the fracture directional pressure-sensitive effect, an oil-gas-water three-phase seepage mathematical model is introduced, which can be applied to pressure-sensitive, full-tensor permeability, ultralow-permeability reservoirs with fracture-induced anisotropy. Accordingly, numerical simulations are conducted to explore the seepage laws for ultralow-permeability reservoirs. The results show that element patterns… More >
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