CO2 Research in Dense Sandstone Storage Sets

The dense sandstone storage set in my country's oil and gas collection is an important pillar of Chinese crude oil storage. It is a hot spot for oil exploration and development in recent years. In order to study the relevant factors of CO2 in the density sandstone storage set, based on the research of relevant literature at home and abroad, the study of CO2 in the density sandstone storage collection was systematically explained. Definition and reservoir characteristics, the two phases of gas and water injection into the analysis of the collection of harvesting. With the increase of production pressure differences, the harvesting of CO2 oil -driven oil increases, so it can be preferred before production, which can be preferred to control the pressure. The more conducive to the adoption of CO2 and the development of the storage, the sooner the air and water are alternately. As the water injection cycle increases, the degree of adoption will increase first and then decrease. It remains unchanged after a large, and at the same time increase the injection volume to help improve the degree of adoption, but the conclusion that actually needs to consider the injection ability of the injection well.