Architectural Units and Groundwater Resource Quantity Evaluation of Cretaceous Sandstones in the Ordos Basin,China

WU Liqun; JIAO Yangquan; ZHU Peimin; LEI Xinrong; WANG Yonghe

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Architectural Units and Groundwater Resource Quantity Evaluation of Cretaceous Sandstones in the Ordos Basin,China

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Sandstone is a common lithology in a number of groundwater reservoirs. Studying the skeleton sandstone architectural units, therefore, lays the basis for characterizing aquifer systems, groundwater quality, and resource evaluation. This comprehensive analysis of Cretaceous aquiferous sandstones in the Ordos basin, China, shows that there exists a basin-scale skeleton sandstone in the Luohe Formation which contains 11 isolated barrier beds, 12 small skeleton sandstone bodies in Huanhe Formation, and 3 in the Luohandong Formation. The spatial structure and superimposed relationship as well as the medium properties of these skeleton sandstones and isolated barrier beds can be shown by 3D visualization models. Simultaneously, resource quantity can be evaluated with the 3D inquiry functions. The comparison between property models and structural models indicates that the salinity of groundwater of the Luohe Formation has a close connection with the locations of isolated barrier beds that contain abundant gypsum. Through quantitative calculation, groundwater resource of the Cretaceous Luohe and Luohandong formations is estimated to be 1.6×10^(12) m^3, and the total groundwater resource of the Cretaceous system in the Ordos basin is more than 2×10^(12) m^3.

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《地质学报：英文版》 |2017年第1期|249-262|共14页
作者
WU Liqun; JIAO Yangquan; ZHU Peimin; LEI Xinrong; WANG Yonghe;
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作者单位

Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education;

China University of Geosciences;

Wuhan 430074;

Hubei;

China;

Faculty of Earth Resources;

China University of Geosciences;

Wuhan 430074;

Hubei;

China;

Institute of geophysics and geomatics;

China University of Geosciences;

Wuhan 430074;

Hubei;

China;

Faculty of material science and chemistry;

China University of Geosciences;

Wuhan 430074;

Hubei;

China;

Xi'an Institute of Geology and Mineral Resources;

Xi'an 710054;

Shannxi;

China;

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原文格式 PDF
正文语种 chi
中图分类地质构造、油气藏（田）的形成;成因;
关键词
鄂尔多斯盆地; 资源量评价; 地下水库; 白垩系; 砂岩; 中国; 三维可视化模型; 含水层系统;

Architectural Units and Groundwater Resource Quantity Evaluation of Cretaceous Sandstones in the Ordos Basin,China

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