摘要
随着煤层气资源的不断开采,大量高矿化度的采出水如处理不当,会对地下水层、河流以及农田造成严重的污染。本文对大佛寺井区的采出水水样和地下水的不同采样点的多个水样进行水质评价分析,研究大佛寺井区的采出水对周围水质的影响,为大佛寺井区的环境影响评价提供依据。结果表明,大佛寺井区采出水是高矿化度、高盐度的水,矿化度最高为17097.5mg·L^-1,但是地下水水质的矿化度较小,多项指标满足《地下水质量标准》中的Ⅲ级及以上要求,说明开采完成后,采出水对地下水质不会产生明显的影响。
With the continuous exploitation of coal bed methane, the improper treatment of a large number of high-mineralized produced water would cause serious pollution to groundwater, rivers and farmland. In this paper, water quality evaluation and analysis were carried out by collecting multiple water samples from different sampling points of produced water and groundwater in Dafosi well area, and the influence of produced water in Dafosi well area on surrounding water quality was studied to provide a basis for environmental impact assessment of Dafosi well area. The results showed that the water quality in the mining stage of Dafosi well area was high salinity and high salinity produced water, the highest degree of mineralization was 17097.5mg/L, but the salinity of groundwater quality was small, and many indicators met the groundwater Grade III and above requirements in the quality standards indicated that the produced water did not have a significant impact on the quality of the groundwater after the completion of the mining.
作者
柏杨
陈鹏
BAI Yang;CHEN Peng(Shaanxi Coal Geological Laboratory Co. Ltd., Xi’an 710045, China;Xi’an Shiyou University, Xi’an 710065, China)
出处
《化工技术与开发》
CAS
2019年第7期20-24,共5页
Technology & Development of Chemical Industry
关键词
煤层气
采出水
地下水
水质分析
coal bed methane
produced water
groundwater
water quality analysis
