Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021126 |
Three-Phase CO2 Flow in a Basalt Fracture Network | |
Gierzynski, Alec O.; Pollyea, Ryan M. | |
2017-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Geologic CO2 sequestration in basalt reservoirs is predicated on permanent CO2 isolation via rapid mineralization reactions. This process is supported by a substantial body of evidence, including laboratory experiments documenting rapid mineralization rates, regional storage estimates indicating large, accessible storage reservoirs, and two successful pilot-scale studies. Nevertheless, there remains significant uncertainty in the behavior of CO2 flow within basalt fracture networks, particularly in the context estimating physical trapping potential in early time and as CO2 undergoes phase change. In this study, a Monte Carlo numerical model is designed to simulate a supercritical CO2 plume infiltrating a low-permeability flood basalt entablature. The fracture network model is based on outcrop-scale LiDAR mapping of Columbia River Basalt, and CO2 flow is simulated within fifty equally probable realizations of the fracture network. The spatial distribution of fracture permeability for each realization is randomly drawn from a basalt aperture distribution, and ensemble results are analyzed with e-type estimates to compute mean and standard deviation of fluid pressure and CO2 saturation. Results of this model after 10 years of simulation suggest that (1) CO2 flow converges on a single dominant flow path, (2) CO2 accumulates at fracture intersections, and (3) variability in permeability can account for a 1.6 m depth interval within which free CO2 may change phase from supercritical fluid to subcritical liquid or gas. In the context of CO2 sequestration in basalt, these results suggest that physical CO2 trapping may be substantially enhanced as carbonate minerals precipitate within the basalt fracture network. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736700018 |
WOS关键词 | CARBON-DIOXIDE SEQUESTRATION ; RELATIVE PERMEABILITY ; FLUID-FLOW ; SUPERCRITICAL CO2 ; CO2-RICH BRINE ; MATRIX NETWORK ; ROCK FRACTURE ; WATER-FLOW ; SYSTEM ; INJECTION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21620 |
专题 | 资源环境科学 |
作者单位 | Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA |
推荐引用方式 GB/T 7714 | Gierzynski, Alec O.,Pollyea, Ryan M.. Three-Phase CO2 Flow in a Basalt Fracture Network[J]. WATER RESOURCES RESEARCH,2017,53(11). |
APA | Gierzynski, Alec O.,&Pollyea, Ryan M..(2017).Three-Phase CO2 Flow in a Basalt Fracture Network.WATER RESOURCES RESEARCH,53(11). |
MLA | Gierzynski, Alec O.,et al."Three-Phase CO2 Flow in a Basalt Fracture Network".WATER RESOURCES RESEARCH 53.11(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论