Material Balance Method and Dynamic Pressure Monitoring for Water-Bearing Gas Reservoirs with CO2 Injection

The storage of carbon dioxide by injecting into gas reservoirs has become an important technique for achieving capture, utilization, and storage. However, most studies have focused on tight reservoirs, there are still few the injection water-bearing reservoirs. This paper analyzes variation reservoir pressure during CO2 points out optimal amount in reservoir, which can provide theoretical guidance practical applications. relationship is plotted between formation volume injected dioxide. effects inhomogeneity water content discussed. Dynamic monitoring achieved. determined. results show that increases with increase dioxide, curve exhibits a trend steep at both ends gentle middle. Enhanced low favorable injection.