针对目前世界上大部分油田采用注水开发面临着需要进一步提高采收率和水资源缺乏的问题,国外近年来大力开展了二氧化碳驱油提高采收率(EOR)技术的研发和应用。这项技术不仅能满足油田开发的需求,还可以解决二氧化碳的封存问题,保护大气环境。该技术不仅适用于常规油藏,尤其对低 In view of the fact that most of the world’s oilfields are faced with the problem of need of further improvement of oil recovery and lack of water resources, foreign countries have energetically developed and applied the EOR technology in recent years. This technology can not only meet the needs of oilfield development, but also solve the problem of carbon dioxide storage and protect the atmosphere. This technique is not only suitable for conventional reservoirs, especially for low