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页岩气作为一种重要的非常规能源,目前只有美国和加拿大取得商业开发成功。页岩气商业开发成功主要取决于水平钻井和压裂技术的突破。目前常用的技术有多级压裂、清水压裂、缝网压裂重复压裂和同步压裂等。此外CO2和N2泡沫压裂也日益得到人们的重视。该文从压裂液、压裂方式和裂缝监测技术及效果评价方面对页岩气压裂技术进行了介绍。
As an important unconventional energy source, shale gas is currently only commercially successful in the United States and Canada. The success of shale gas business development depends primarily on breakthroughs in horizontal drilling and fracturing technologies. Currently there are multi-stage fracturing techniques, water fracs, fracturing fracturing and synchronous fracturing. In addition, CO2 and N2 foam fracturing is also gaining more and more attention. In this paper, shale gas fracturing technology is introduced from the aspects of fracturing fluid, fracturing method, fracture monitoring technique and effect evaluation.