| 摘要 |
This invention relates to enhanced oil recovery methods to improve hydrocarbon reservoir production. An enhanced oil recovery screening model has been developed which consists of a set of correlations to estimate the oil recovery from miscible and immiscible gas/solvent injection (CO2, N2, and hydrocarbons), polymer flood, surfactant polymer flood, alkaline-polymer flood and alkaline surfactant-polymer flood. |
| 主权项 |
1. A process for enhancing hydrocarbon production where the process comprises:
a) mechanistic modeling of one or more enhanced oil recovery process (EOR) in two or more hydrocarbon reservoirs, b) identifying parameter ranges including a maximum, minimum and median value for one or more available screening parameters, c) generating one or more three dimensional reservoir models using experimental design methods with the parameter ranges identified, d) simulating the process for each hydrocarbon reservoir, e) developing a response surface to correlate oil recovery at different times of EOR with one or more available screening parameters, wherein the response surface consists of:
Y=A+B1X1+B2X2. . .+C1X1X2+C2X1X3+. . .+D1X12+D2X22+. . .wherein X1, X2 through Xn are available screening parameter, wherein Xn represents the final available screening parameter, wherein A, Bi, Ci, Di, through Ni are calculated coefficients for each available screening parameter, wherein i represents the available screening parameter, wherein N represents the final coefficients and wherein Y is projected oil recovery during EOR, and
f) testing the response surface for each EOR with multiple random simulations. |
