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Discussion on Hydraulic Fracturing Technology in Shale Gas Well Development and Relative Environmental Issues

Qian Bozhang (Shanghai Kingdom Information Technology Co.,Golden- Autumn Scientific Propagation Co.,Shanghai, 200127,China) Li Wuguang (China Petroleum University(Beijing)Oil Engineering College,Beijing,102249,China)  
In natural gas exploitation by hydraulic fracturing method,water with a mixture of chemicals and sands will be injected into subterranean shale bed by high pressure,rock is fractured by water with high pressure,sands or other materials are used to support gap at the same time,so shale rock will be crushed and shale gas will be released. Introduced are domestic and foreign fracturing technologies for shale gas wells,mainly including riverfrac treatment technology,synchronous fracturing technology,refracturing and horizontal well fracturing technology. Studied is the pollution ofshale gas well fracturingon the environment,such as methane pollution and chemical pollution and proposed are such remedial measures for decreasing environmental pollution in shale gas hydraulic fracturing as control of fracturingwaste water and air pollution and gold standard for clean development ofunconventional gases.
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