Abstract
Abstract China's shale gas industry is developing rapidly, but the associated challenges of water resources shortage and water pollution are becoming more and more prominent. Hydraulic fracturing, the core process of shale gas extraction, consumes a large amount of water and produces refractory wastewater, closely linking shale gas fields with water resources. In this context, this article is to (1) summarize the characteristics of water consumption and wastewater production in typical shale gas fields; (2) introduce the current status of water intake and internal reuse and treatment of shale gas wastewater (SGW); and (3) analyse the challenges of water management in shale gas field. In order to promote the sustainable development of the shale gas industry, it is necessary to establish an efficient water management system according to local conditions. Making use of municipal reclaimed water in fracturing, promoting external reuse of SGW, strengthening the monitoring and safety guarantee of water use, and formulating national or regional water management guidelines can improve the utilization efficiency of water resources in shale gas fields.
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