Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090456 |
Sinking CO2 in supercritical reservoirs | |
Francesco Parisio; Victor Vilarrasa | |
2020-11-16 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Geologic carbon storage is required for achieving negative CO2 emissions to deal with the climate crisis. The classical concept of CO2 storage consists in injecting CO2 in geological formations at depths greater than 800 m, where CO2 becomes a dense fluid, minimizing storage volume. Yet, CO2 has a density lower than the resident brine and tends to float, challenging the widespread deployment of geologic carbon storage. Here, we propose for the first time to store CO2 in supercritical reservoirs to reduce the buoyancy‐driven leakage risk. Supercritical reservoirs are found at drilling‐reachable depth in volcanic areas, where high pressure (p>21.8 MPa) and temperature (T>374 °C) imply CO2 is denser than water. We estimate that a CO2 storage capacity in the range of 50‐500 Mt yr‐1 could be achieved for every 100 injection wells. Carbon storage in supercritical reservoirs is an appealing alternative to the traditional approach. |
领域 | 气候变化 |
URL | 查看原文 |
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/304338 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Francesco Parisio,Victor Vilarrasa. Sinking CO2 in supercritical reservoirs[J]. Geophysical Research Letters,2020. |
APA | Francesco Parisio,&Victor Vilarrasa.(2020).Sinking CO2 in supercritical reservoirs.Geophysical Research Letters. |
MLA | Francesco Parisio,et al."Sinking CO2 in supercritical reservoirs".Geophysical Research Letters (2020). |
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