Assessment of The Suitability of Geological Storage of CO2 According to Geothermal Conditions of Sedimentary Basins In China
详细信息
- 责任者：Wu Qinghua (Institute of Hydrogeology and Environmental Geology ; CAGS ; Shijiazhuang 050803 ; China) ; Lin Wenjing
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2012
- 卷期：39(4)
- 关键词：二氧化碳 ; carbon dioxide ; 地下储存 ; underground storage ; 地温梯度 ; geothermal gradient
- 页码：p.132-136 144
- 图表：illus., 3 tables, 8 refs.
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Geological storage of CO2 is one of the mean measurements for avoiding the release of anthropogenic CO2 into the atmosphere,which may prevent the global temperature rising. At present, the geothermal regime is one of the most important factors for the suitability assessment. However, the rationality of geothermal reign needs to be improved. This paper assesses the geothermal suitability of CO2 storage with the weighting method,using geothermal gradient,terrestrial heat flow and surface temperature. The results show that 2.1%(8.5×104 km2) of sedimentary basins are the most suitable for CO2 geological sequestration,68.6%(274.0×104 km2) are better suitable, 24.6%(98.4×104 km2) are suitable, 4.7%(18.7×104 km2) are less suitable. However, the worst suitable sedimentary basins have not been found. The results improve the accuracy of geothermal conditions for the suitability assessment of CO2 storage.