Science. 1984 May 11;224(4649):563-9. doi: 10.1126/science.224.4649.563.
Large volumes of oil will remain in U.S. oil reservoirs when standard recovery methods have been completed. Supercritical carbon dioxide can be used to recover part of that remaining oil. If carbon dioxide is dense enough, it extracts hydrocarbons from the oil to make a mixture miscible with crude oil. Such a mixture can recover 95 percent of the oil in controlled laboratory flow settings. Heterogeneity of reservoir rocks and the low viscosity of carbon dioxide reduce the fraction of oil recovered in projects to lower but still significant levels. With the construction of three pipelines to carry naturally occurring carbon dioxide from Colorado and New Mexico to Permian basin oil fields, large-scale implementation of enhanced oil recovery by carbon dioxide flooding is now beginning.
当采用标准的开采方法完成后，仍会有大量的石油残留在美国的油藏中。超临界二氧化碳可用于回收部分剩余的石油。如果二氧化碳足够密集，它可以从石油中提取碳氢化合物，形成与原油混溶的混合物。在控制的实验室流动条件下，这种混合物可以回收 95%的石油。储层岩石的非均质性和二氧化碳的低粘度降低了在项目中回收的石油比例，但仍然相当可观。随着三条输送来自科罗拉多州和新墨西哥州的天然二氧化碳的管道的建设，现在开始大规模实施二氧化碳驱油以提高石油采收率。
