EOS7Cm: An improved TOUGH2 module for simulating non-isothermal multiphase and multicomponent flow in CO2-H2S-CH4 brine systems with high pressure, temperature and salinity
文献类型：期刊论文
| 作者 | Lei, Hongwu1; Li, Jun1; Li, Xiaochun1 ; Jiang, Zhenjiao2
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| 刊名 | COMPUTERS & GEOSCIENCES
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| 出版日期 | 2016 |
| 卷号 | 94页码:150-161 |
| 关键词 | CO2-H2S-CH4-brine system Thermodynamic model Multiphase and multicomponent flow CO2 injection Numerical simulation |
| ISSN号 | 0098-3004 |
| DOI | 10.1016/j.cageo.2016.06.011 |
| 英文摘要 | Understanding the non-isothermal multiphase and multicomponent flow in a CO2-H2S-CH4-brine system is of critical importance in projects such as CO2 storage in deep saline aquifers, natural gas extraction using CO2 as the displacement fluid, and heat extraction from hot dry rocks using CO2 as the working fluid. Numerical simulation is a necessary tool to evaluate the chemical evolution in these systems. However, an accurate thermodynamic model for CO2-H2S-CH4-brine systems appropriate for high pressure, temperature, and salinity is still lacking. This study establishes the mutual solubility model for CO2-H2S-CH4-brine systems based on the fugacity-activity method for phase equilibrium. The model can predict mutual solubilities for pressure up to 1000 bar for CO2 and CH4, and 200 bar for H2S, for temperature up to 200 degrees C, and for salinity up to 6 mol/kg water. We incorporated the new model into TOUGH2/EOS7C, forming a new improved module we call EOS7Cm. Compared to the original EOS7C, EOS7Cm considers the effects of H2S and covers a larger range of temperature and salinity. EOS7Cm is employed in five examples, including CO2 injection with and without impurities (CH4 and/or H2S) into deep aquifers, CH4 extraction from aquifers by CO2 injection, and heat extraction from hot dry rock. The results are compared to those from TOUGH2/ECO2N, EOS7C and CMG, agreement among which serves to verify EOS7Cm. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Computer Science ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000381325700016 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3919]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Jilin Univ, Minist Educ, Key Lab Groundwater Resources & Environm |
| 推荐引用方式 GB/T 7714 | Lei, Hongwu,Li, Jun,Li, Xiaochun,et al. EOS7Cm: An improved TOUGH2 module for simulating non-isothermal multiphase and multicomponent flow in CO2-H2S-CH4 brine systems with high pressure, temperature and salinity[J]. COMPUTERS & GEOSCIENCES,2016,94:150-161. |
| APA | Lei, Hongwu,Li, Jun,Li, Xiaochun,&Jiang, Zhenjiao.(2016).EOS7Cm: An improved TOUGH2 module for simulating non-isothermal multiphase and multicomponent flow in CO2-H2S-CH4 brine systems with high pressure, temperature and salinity.COMPUTERS & GEOSCIENCES,94,150-161. |
| MLA | Lei, Hongwu,et al."EOS7Cm: An improved TOUGH2 module for simulating non-isothermal multiphase and multicomponent flow in CO2-H2S-CH4 brine systems with high pressure, temperature and salinity".COMPUTERS & GEOSCIENCES 94(2016):150-161. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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