Reserve Utilization Characteristics of the Tight Sandstone Gas Reservoir in the Qingshimao Gas Field and Gas Recovery Enhancement Through CO2 Displacement and Energy Replenishment
The tight sandstone gas reservoir in Qingshimao gas field has the characteristics of complex gas–water distribution, low reservoir quality, low porosity, low permeability and high water saturation. Single-well productivity is low, the production and pressure decrease rapidly, the stable production period is short and e...