Porosity Distribution Characteristics and Geological Analysis of Brine Storage Medium in the Qaidam Basin, Western China
Porosity Distribution Characteristics and Geological Analysis of Brine Storage Medium in the Qaidam Basin, Western China
复制标题
柴达木盆地卤水介质孔隙度分布特征及地质分析
DOI：
10.1007/s11769-018-0979-x
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发表时间：
2018-07
期刊：
影响因子：
--
通讯作者：
FENG Juan
中科院分区：
文献类型：
--
作者：
HU Shuya;XIAO Changlai;LIANG Xiujuan;ZHAO Quansheng;WANG Guangcai;ZHANG Jianwei;FENG Juan
Underground brine is an unusual water resource that contains abundant mineral resources. It is distributed widely in the Qaidam Basin, western China, a hyperarid inland basin located in the northern Tibetan Plateau. Pores in the brine storage medium act as storage space and transmission channels of underground brine. Therefore, the porosity of brine storage medium determines its ability to store brine. In this study, Mahai Salt Lake was used as the research area as a modern saline lake located in the north area of the Qaidam Basin. A total of 100 porosity samples were collected from eight sampling points in two profiles of the research area at sampling depths of 1.30–314.78 m. The porosity distribution characteristics and influencing factors in brine storage medium were analysed according to the measured porosity data. Based on analysis of the pore structure characteristics, the brine storage medium contains intercrystalline pores, unlike conventional freshwater storage mediums. Moreover, the primary salt rock is susceptible to dissolution by lighter brine, facilitating the formation of secondary porosity. Due to the formation of secondary pores, a porosity greater than 20% remains even at buried depths greater than 100 m. Based on the geological statistical analysis, due to the geographic location, salt formation time, and depositional environment, the porosity values of Mahai Salt Lake do not exhibit a wider distribution, but also show more extreme values than a nearby salt lake. Based on the porosity characteristics by depth, due to the presence of secondary pores, flooding, stratigraphic static pressure, and other factors, porosity shows fluctuations with increasing depth.
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DOI：
10.1007/s00254-005-0140-x
发表时间：
2006-04
期刊：
Environmental Geology
影响因子：
--
作者：
Zhou Xun;Fang Bin;Chen Mingyou;Zhao Liang;Z. Hua;Shen Ye
通讯作者：
Zhou Xun;Fang Bin;Chen Mingyou;Zhao Liang;Z. Hua;Shen Ye
DOI：
10.2110/pec.79.26.0209
发表时间：
1979
期刊：
--
影响因子：
--
作者：
V. Schmidt;D. A. McDonald
通讯作者：
V. Schmidt;D. A. McDonald
DOI：
--
发表时间：
2002
期刊：
Geological Review
影响因子：
--
作者：
Liu Chenglin
通讯作者：
Liu Chenglin
DOI：
10.2172/6496850
发表时间：
1977
期刊：
--
影响因子：
--
作者：
L. Muffler;R. Cataldi
通讯作者：
L. Muffler;R. Cataldi
影响因子：
2.7
作者：
R. C. Selley
通讯作者：
R. C. Selley