Two-phase pore-fluid distribution in fractured media: acoustic wave velocity vs saturation
Duan Xi1,2 and Liu Xiang-Jun1
1. Department of Geosciences, Southwest Petroleum University, Chengdu 610500, China.
2. Department of Science, Southwest Petroleum University, Chengdu 610500, China.
Abstract The acoustic wave velocity varies with fluid saturation and pore-fluid distribution. We use a P-wave source and the staggered grid finite-difference method, with second-order accuracy in time and eighth-order accuracy in space, to simulate the acoustic wave field in a fractured medium that is saturated with a two-phase pore fluid (gas & water). Further, we analyze the variation of acoustic wave velocity with saturation for different pore-fluid distribution modes. The numerical simulation method is simple and yields accurate results.
This research was supported by the National Natural Science Foundation of China (No. 51134004).
Cite this article:
. Two-phase pore-fluid distribution in fractured media: acoustic wave velocity vs saturation[J]. APPLIED GEOPHYSICS, 2018, 15(2): 311-317.
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2018, Vol. 15 
