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因为空气中的 CO2含量逐渐增加，导致了全球变暖，所以 CO2的减排问题以及处理方式倍受人们关注。埋存 CO2是阻止气候变化的有效途径之一。CO2地质储存可以储存在枯竭的油气藏、深部咸水层、不能开采的煤层，其中枯竭的油气藏储层技术相对成熟，但潜力有限。深部咸水层有着巨大的埋存潜力。本文对 CO2在深部咸水层的埋存发展现状进行探讨。在描述了国内外的发展趋势的基础上研究了 CO2在咸水层埋存量的计算方法，为 CO2在深部咸水层埋存提供理论依据。“,”Nowadays CO2 density is increasing lead to the global warming. Many people pay more attention to emission of CO2 into atmosphere and CO2 storage. CO2 geological sequestration can be effective in prevent the global warming. CO2 can be stored into depleted reservoir, deep saline aquifers and unworkable coal bed. The depleted reservoir in which technology is relatively mature, but the potential is limited. Deep saline aquifer has great potential for sequestration. In this paper, the current of the carbon dioxide sequestration in deep saline aquifers development are discussed. Development trend of domestic and international about it are discussed. Some different algorithms about the CO2 in deep saline aquifer are given, which provide a theoretical basis for studying the sequestration of carbon dioxide in deep saline aquifer.