Gas-liquid flows in porous media and coupling effects

Gas flood (N-2/CO2) are promising EOR methods, meanwhile CO, trapping and sequestration are important for environmental protection. How to inspect and control gas-liquid flows are the core technology. Based on fundamental principle, established the numerical model to simulate coupling effects of gas-liquid flows in reservoir. Result shows that CO, swept area would form a low electrical potential enclosure, and gas-liquid front is the place where potential begin to decrease while production, this area would enlarge till injected gas break thought at production well, then potential begin to recover to zero, spatial variance would disappear. The result is instructive to the monitor gas-liquid flow process.