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GEOCHEMICAL INTERACTIONS BETWEEN CO_2, PORE-WATERS AND RESERVOIR ROCKS

机译:CO_2,孔隙水与储层岩石之间的地球化学相互作用

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摘要

The degree of reactivity between CO_2, pore-waters and minerals may have significant consequences on CO_2 storage capacity, the injection process, and long-term safety and stability. Geochemical reactions are highly site-specific and time-dependent. They need to be assessed on a site-to-site basis according to best practises by combining numerical modelling and observations from laboratory experiments, field monitoring, and natural analogues. A selection of lessons learned from three European projects about the reactivity of CO_2 with reservoir rocks and cap rocks is presented here for three sites: Sleipner (Norway) and Weyburn (Canada) where more than 1 Mt of CO_2 per year has been injected underground since 1996 and 2000 respectively, and Montmiral, a natural CO_2 field in France.
机译:CO_2,孔隙水和矿物质之间的反应程度可能会对CO_2的储存量,注入过程以及长期安全性和稳定性产生重大影响。地球化学反应是高度特定于地点的并且是时间依赖性的。需要通过结合实验室实验,现场监测和天然类似物的数值模型和观察结果,根据最佳实践对现场进行评估。这里介绍了从三个欧洲项目中吸取的关于CO_2与储层岩石和盖层岩的反应性的一些经验教训,这些地点来自以下三个地点:Sleipner(挪威)和Weyburn(加拿大),自此以来每年向地下注入超过1 Mt的CO_2分别是1996年和2000年,以及法国的天然CO_2油田Montmiral。

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