【作者】 帅官印； 张永波； 张志祥； 陈攀； 李鹏；

【Author】 Shuai Guanyin;Zhang Yongbo;Zhang Zhixiang;Chen Pan;Li Peng;Department of Hydraulic Engineering,Taiyuan Univerisity of Technology;China Water Resources Beifang Investigation,Design and Research Co.,Ltd;

【机构】 太原理工大学水利科学与工程学院； 中水北方勘测设计研究有限责任公司；

【摘要】 对影响地下水环境的煤层气开采技术发展现状进行了总结,并分析了不同排采模式、不同井型对地下水水量的影响,同时阐述了水力压裂对含水层结构的破坏。总结了施工过程钻井、压裂、窜层产生的地下水污染,指出煤层气井运行期两阶段产出水的水质状况,以及现有的产出水处理技术和降低水污染技术。针对煤层气开采对地下水环境产生的影响问题,今后需加强降低水污染技术,以及经济高效的水处理技术装置等研究工作。更多还原

【Abstract】 The developing status of mining technologies of coalbed methane which have an effect on groundwater environment was reviewed. Then the effect of different modes of water drainage and gas production and well types on groundwater yield has been analyzed. Meantime,the damage of hydraulic fracturing to aquifers structure was explained. Groundwater pollution produced by well drilling,fracturing and fluid channeling during construction was summarized. Quality condition of produced water was pointed out in the two stages of coalbed methane well operation period,with existing processing techniques of produced water and techniques of reducing water pollution. To the effect of coalbed methane mining on groundwater environment,it is proposed that more studies need to be done including techniques of reducing water pollution and costeffective processing techniques and equipments of produced water.更多还原