Research Article

Optimal Control of Polymer Flooding Based on Maximum Principle

Table 2

Fluid data used in the example.

ParametersValues

Oil viscosity, ๐œ‡ ๐‘œ (mPaยทs)50
Compressibility factors of oil, ๐ถ ๐‘œ (1/MPa) 5 ร— 1 0 โˆ’ 6
Oil volume factor under the condition of the reference pressure, ๐ต ๐‘œ ๐‘Ÿ 1
Aqueous phase viscosity with no polymer, ๐œ‡ ๐‘ค (mPaยทs)0.458
Compressibility factors of water, ๐ถ ๐‘ค (1/MPa) 4 . 6 ร— 1 0 โˆ’ 6
Water volume factor under the condition of the reference pressure, ๐ต ๐‘ค ๐‘Ÿ 1
Polymer absorption parameter, ๐‘Ž (g/cm3)0.03
Polymer absorption parameter, ๐‘ (g/cm3)3.8
Diffusion coefficient, ๐ท (m2/s) 1 ร— 1 0 โˆ’ 5
Effective pore volume coefficient, ๐‘“ ๐‘Ž 1
Permeability reduction parameter, ๐‘… ๐‘˜ m a x 1.15
Permeability reduction parameter, ๐‘ ๐‘Ÿ ๐‘˜ 1.2
Viscosity parameter, ๐‘Ž ๐‘ 1 15.426
Viscosity parameter, ๐‘Ž ๐‘ 2 0.4228
Viscosity parameter, ๐‘Ž ๐‘ 3 0.2749