煤层气产出水特征及环境影响研究进展

Research Progress on Producing Water Characteristics and Environmental Impact of Coal-Bed Methane

在煤层气开发政策的鼓励及指导下,我国已逐步形成煤层气的产业化生产,但随着煤层气年产量上升,气井产出水引发的环境问题日益严峻。通过分析我国煤层气的开发现状,总结了产出水的来源和地球化学特征,分析了产出水对土壤环境、地层结构以及植物生长的影响特征,为推进我国煤层气环境影响评价体系的构建提供借鉴。

With the encouragement and guidance of the coal-bed methane（ CBM） development policy,industrialized production of CBM has been gradually established in our country. However,with the annual increase of CBM output,the environmental problems caused by the producing water from coal-bed methane field were also becoming more and more serious. In order to set up a framework for the CBM environmental impact assessment system in China,this paper analyzed the current situation of CBM development,and summarized the origin,geochemical characteristics of producing water as well as the impact characteristics of producing water on the soil environment,stratigraphic structure and plant growth.