2013年8月10日星期六

Shale gas development faces three major environmental risk environmental regulation into a "blind spot"

In  shale gas  development and enterprise encouraged by the policy touted hidden behind blank hardship environmental regulations. The development of shale gas special way during its development led to uncertainty, EIA difficult than conventional natural gas large, the urgent need to establish specifically for shale gas environmental regulations. At present, China is still a blank in this field. Environmental Protection Department of Environmental Engineering Assessment Center, deputy chief engineer Ren Jingming yesterday in the "2012 Global Unconventional Gas Summit" made ​​the above statement.fracturing proppant Shale gas development process in the face of water pollution, air pollution and destruction of the three geological environmental risks. According to Ren Jingming introduced in the same production circumstances, shale gas Ida Ida conventional natural gas area is about ten times the area of ​​the drilling reached the number of 100-fold or more conventional natural gas, water consumption is about 10 times that of conventional natural gas. Its development process wastewater generated will contain hydrocarbons, heavy metals, radioactive substances, salt and 100 kinds of chemical substances may cause groundwater contamination; they use  Hydraulic fracturing  technology is likely to cause geological damage. "Shale gas development is a rolling development projects, with a small number of different conventional gas wells, shale gas mining process requires constant drilling, which increases the difficulty of identifying the environmental impact." Ren Jingming said that in the EIA phase there are usually well site location and layout of many other problems can not be completely sure, and as related to shale gas development lags behind in basic research, not yet worked out specifically for shale gas regulations concerning EIA. It is understood that an environmental standards from start to introduce usually takes three to five years. "Ministry of Environmental Protection will start in 2013 on shale gas EIA aspects of scientific research project, pending the results of these research projects came out before the introduction of the relevant regulations and provide technical support." Ren Jingming said.

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