当前位置: X-MOL 学术Energy Fuels › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Source, Age, and Evolution of Coal Measures Water in Central-South Qinshui Basin, China
Energy & Fuels ( IF 5.3 ) Pub Date : 2018-06-04 00:00:00 , DOI: 10.1021/acs.energyfuels.8b00701
Haichao Wang 1 , Xuehai Fu 2 , Xiaoyang Zhang 2 , Qinghe Niu 2 , Yanyan Ge 1 , Jijun Tian 1 , Xiaoqian Cheng 1 , Ning Chen 3 , Xiaolin Hou 3 , Hua Du 3
Affiliation  

Groundwater is one of the important factors controling the accumulation and exploitation of coal measures gas. In this work, a water source identification method based on hydrochemistry, stable isotope, 129I and 14C dating is first established; then, the source, age, and evolution of coal measures water in the Central-South Qinshui Basin are clarified. The results reveal that the hydrogeological environment of coal measures water in Carboniferous-Permian is between semiclosed and open, with free water exchanging. The coal measures water in the Guxian and Shizhuangnan blocks are Ca-HCO3 and Na-HCO3 types, respectively, while the closed coefficients are 1.77 and 322.75, respectively. Therefore, the water is attributed to river water or shallow groundwater in the Guxian block and deep groundwater in the Shizhuangnan block. The age of coal measures water is 1.51–20.61 Ma, which indicates that the water in coal measures at the present stage is a mixture of a little paleo sedimentary water and massive modern meteoric water and that the modern meteoric water recharge lasted until 1950. The above achievements deepen the understanding of the coal measures reservoir type and also guide the optimal selection and co-exploration and -exploitation of coal measures gas.

中文翻译:

沁水中南盆地煤系水的来源,年龄和演化

地下水是控制煤系气成藏和开发的重要因素之一。在这项工作中,首先建立了基于水化学,稳定同位素,129 I和14 C测年的水源识别方法。然后,阐明了中南沁水盆地煤系水的来源,年龄和演化。结果表明,石炭—二叠纪煤的水文地质环境介于半封闭和开放之间,可以自由交换水。固县和石庄南区块的测煤水为Ca-HCO 3和Na-HCO 3类型,而封闭系数分别为1.77和322.75。因此,水归因于古县地块的河水或浅层地下水和石庄南地块的深层地下水。煤测量水的年龄为1.51–20.61 Ma,这表明现阶段煤测量中的水是少量的古沉积水和大量现代大气水的混合,并且现代大气水的补给一直持续到1950年。以上成就加深了对煤系气藏类型的认识,也为煤系气的优选选择,联合勘探与开发提供了指导。
更新日期:2018-06-04
down
wechat
bug