Research Article
Study on the Migration Pattern of Concentrated Brine in Underground Concentrated Brine Storage Reservoir: A Case Study in Ling Xin Mining Area
Table 2
Selection of calculation parameters.
| | Parameter | Unit | Numerical value |
| | Water barrier permeability coefficient under natural conditions | m/s | 7-11 | | Water barrier permeability coefficient under sudden leak | m/s | 1-6 | | Coal seam permeability coefficient | m/s | 5-8 | | Weak barrier-1 permeability coefficient | m/s | 3-9 | | Weak barrier-2 permeability coefficient | m/s | 2-9 | | Fluid density | kg/m3 | 1000 | | Hydrodynamic viscosity | Pa·s | 0.001 | | Fluid diffusion coefficient | m2/d | 1-9 | | Concentrated brine salinity | mg/L | 36000 | | Longitudinal dispersion coefficient | m | 10 | | Horizontal to longitudinal dispersion ratio | 1 | 0.1 | | Vertical to longitudinal dispersion ratio | 1 | 0.01 | | Water storage rate | 1/m | 1-5 | | Gravity water supply | 1 | 0.2 | | Effective porosity | 1 | 0.15 | | Total porosity | 1 | 0.3 |
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