| CO2注入咸水层的动力弥散-对流-溶解计算模型 |
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| 引用本文： | 张春会,靳静,黄鹂.CO2注入咸水层的动力弥散-对流-溶解计算模型[J].辽宁工程技术大学学报(自然科学版),2012,31(1):42-45. |
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| 作者姓名： | 张春会 靳静 黄鹂 |
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| 作者单位： | 河北科技大学建筑工程学院,河北石家庄,050018 |
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| 基金项目： | 河北省自然基金资助项目(E2011208036);河北省科技支撑项目(10275695) |
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| 摘 要： | 如何模拟CO2注入咸水储层的质量传输过程是实施CO2注入地下咸水层的关键.通过分析CO2注入咸水储层的质量传输过程,基于质量守恒原理,建立考虑对流、动力弥散及溶解的计算模型,利用有限元法开发了相应的数值计算程序CO2-IA.数值算例研究地下水渗流速度对CO2注入的影响,结果表明:地下水渗流速度对CO2的质量传输影响很大,随着地下水渗流速度的增加,地下水的对流和弥散效能均增强,从而有效地提高了咸水层中CO2的封存量和封存效率.
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| 关 键 词： | CO2注入 弥散 溶解 对流 咸水层 有限元方法 渗流速度 质量守恒 |
Model of dispersion-advection-solution for CO2 injection into salty strata |
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| ZHANG Chunhui
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JIN Jing
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HUANG Li.Model of dispersion-advection-solution for CO2 injection into salty strata[J].Journal of Liaoning Technical University (Natural Science Edition),2012,31(1):42-45. |
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| Authors: | ZHANG Chunhui JIN Jing HUANG Li |
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| Institution: | (School of Civil Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China) |
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| Abstract: | To simulate the process of CO2 injection into salty aquifer is a key issue for CO2 injection operation.Mass transfer process of CO2 injection was analyzed in this study.Based on the mass conservation principle,the model of coupled dispersion-advection-solution for CO2 injection was also established.A numerical calculation program CO2-IA has been developed using finite element method.A numerical case is conducted to investigate the effect of groundwater velocity on CO2 injection.Main conclusions are obtained as follows:the groundwater velocity affects the mass transfer process of CO2.With the increment of velocity,the advection and dispersion are enhanced.Therefore,the mass and efficiency of CO2 injection can be improved. |
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| Keywords: | CO2 injection dispersion solution advection salty aquifer FEM seepage velocity mass conservation |
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