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Experimental Study of Crossover from Capillary to Viscous Fingering for Supercritical CO2-Water Displacement in a Homogeneous Pore Network
文献类型：期刊论文
| 作者 | Wang, Ying1; Zhang, Changyong2; Wei, Ning1; Oostrom, Mart2; Wietsma, Thomas W.2; Li, Xiaochun1 ; Bonneville, Alain2
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2013 |
| 卷号 | 47期号:1页码:212-218 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/es3014503 |
| 英文摘要 | Carbon sequestration in saline aquifers involves displacing brine from the pore space by supercritical CO2 (scCO(2)). The displacement process is considered unstable due to the unfavorable viscosity ratio between the invading scCO(2) and the resident brine. The mechanisms that affect scCO(2)-water displacement under reservoir conditions (41 degrees C, 9 MPa) were investigated in a homogeneous micromodel. A large range of injection rates, expressed as the dimensionless capillary number (Ca), was studied in two sets of experiments: discontinuous-rate injection, where the micromodel was saturated with water before each injection rate was imposed, and continuous-rate injection, where the rate was increased after quasi-steady conditions were reached for a certain rate. For the discontinuous-rate experiments, capillary fingering and viscous fingering are the dominant mechanisms for low (logCa <= -6.61) and high injection rates (logCa >= -5.21), respectively. Crossover from capillary to viscous fingering was observed for logCa = -5.91 to -5.21, resulting in a large decrease in scCO2 saturation. The discontinuous-rate experimental results confirmed the decrease in nonwetting fluid saturation during crossover from capillary to viscous fingering predicted by numerical simulations by Lenormand et al. (J. Fluid Mech. 1988, 189, 165-187). Capillary fingering was the dominant mechanism for all injection rates in the continuous-rate experiment, resulting in monotonic increase in scCO(2) saturation. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000313220300026 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3409]  |
| 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.Pacific NW Natl Lab |
| 推荐引用方式 GB/T 7714 | Wang, Ying,Zhang, Changyong,Wei, Ning,et al. Experimental Study of Crossover from Capillary to Viscous Fingering for Supercritical CO2-Water Displacement in a Homogeneous Pore Network[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2013,47(1):212-218. |
| APA | Wang, Ying.,Zhang, Changyong.,Wei, Ning.,Oostrom, Mart.,Wietsma, Thomas W..,...&Bonneville, Alain.(2013).Experimental Study of Crossover from Capillary to Viscous Fingering for Supercritical CO2-Water Displacement in a Homogeneous Pore Network.ENVIRONMENTAL SCIENCE & TECHNOLOGY,47(1),212-218. |
| MLA | Wang, Ying,et al."Experimental Study of Crossover from Capillary to Viscous Fingering for Supercritical CO2-Water Displacement in a Homogeneous Pore Network".ENVIRONMENTAL SCIENCE & TECHNOLOGY 47.1(2013):212-218. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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