Shale gas exploitation of groundwater pollution prevention and control difficult

shale gas triggered by the "energy revolution" Masamori momentum, while mining the enormous water consumption, groundwater pollution problems began quietly affecting people's nerves. Chinese Ministry of Environmental Protection Engineer ten thousand too recently in Beijing, said the ministry has not yet received the current shale gas project environmental impact assessment application, but any future development project must strictly carry out environmental impact assessment. Late last year, China conducted a second round of MLR bustling shale gas exploration bidding. However, according to media reports, compared to the previous spectacle successful business in the new shale gas exploration and development of the actual input level as yet no substantive. It is understood, including shale gas exploration, drilling, well completion process, the core technology is horizontal drilling and  Hydraulic fracturing.  World-renowned consulting firm Accenture released a report earlier, generally required for drilling and fracturing 18,927,000 liters of water, the equivalent of 1,000 trucks transported water. In addition to a huge amount of water, shale gas extraction wastewater generated contains hydrocarbons, heavy metals, salt, and a hundred kinds of chemical substances, if the infusion or perfusion layer below the requirements of the inappropriate choice will result in groundwater contamination.
   
     "After all, drill into underground shale gas, drill through multiple aquifers." Ten thousand too that shale gas does cause risk of groundwater contamination. He also disclosed that the current Chinese Academy of Environmental Sciences, Center for Environmental Assessment and other environmental research institutes under the Ministry of the Environment has developed the pros and cons of shale gas analysis report presenting the ministry. Chinese population density, water scarcity and uneven distribution of seasonal water shortages distinctive characteristics. The concentrated distribution of shale gas in Sichuan, Chongqing,frac sand Guizhou, Yunnan and Guangxi and other regions, the complex geological conditions, underground river caves and more, increasing the difficulty of groundwater pollution prevention and control. In ten thousand too seems to control the risk of groundwater contamination in shale gas development project before the environmental impact assessment must be carried out strictly on the possible water bodies, air and other environmental factors cause the system to conduct a comprehensive analysis of the risks. "If necessary, can also be international cooperation, learn from foreign research experience."