Adaptability Study of Hot Water Chemical Flooding in Offshore Heavy Oilfields

Table 1

Numerical simulation characterization of EOR mechanism for hot water chemical flooding.

EOR mechanism	Numerical simulation realization
Thermal viscosity reduction	Viscosity-temperature relation table at different temperatures
Displacement efficiency improvement by thermal method	High and low temperature relative permeability curve interpolation
Viscosity reduction by chemical agent	(1) the viscosity reduction rate of agent at different temperatures; (2) by defining chemical reaction to generate oil with lower viscosity
Changing water phase viscosity to control mobility ratio	Nonlinear viscosity relation