CO2-EOR技术在美国的应用

APPLICATION OF CO2-EOR TECHNIQUE IN AMERICA

随着油田的持续开发，EOR技术在增产、稳产和进一步提高采收率方面所起的作用日渐突出。《油气杂志》从1974年开始，每两年发布一次“全球EOR调查”结果，为了解EOR技术的应用提供了翔实的数据。根据该杂志的统计，CO2-EOR是近10a内全球增长最快的注气采油方法，其中美国的工业化应用居行业领先地位。2010年，美国CO2-EOR项目占到了全球同类项目的88．4％和产量的93．67％，其中绝大多数位于德克萨斯州二叠纪盆地。CO2-EOR在美国不但技术上取得成功，而且具有良好的经济效益。美国的成功应用可以为该项技术在中国油田的进一步推广提供借鉴。

With the continuous development of oilfields, EOR techniques take a more and more important roles day after day in increasing and maintaining oil production and further enhancing the recovery ratio. Oil ＆ Gas Journal has published its bi-annual World EOR Survey since 1974, and these surveys have provided detailed and accurate data to understand the application of EOR technologies. According the statistics of the journal, CO2-EOR is the fas- test-rising gas-injection EOR method in the world in recent 10 years, and its commercial application in the USA plays the leading role in petroleum industry. In 2010, the CO2-EOR projects in America occupied 88.4% of the a- mount and 93.6% of the production in the whole world, and most of them are applied in the Permian basins in Texas. CO2-EOR projects are not only technically successful, but also very beneficial in economy. The successful application of this technique in the USA can be taken for reference for the further generalization in Chinese oilfields.