Abstract: This paper analyzes the present conditions of global shale gas resource potential and development, the progress in China’s demonstration zones of shale gas and the US shale gas development process. It concludes that shale gas of marine facies is the priority field of shale gas exploration and development in China owing to its high abundance of organic matter, good types, high gas-bearing content, stable distribution and wide areas. Economic shale gas development on a large scale requires non-conventional management and technology. China’s shale gas development faces a series of issues, such as considerable gaps in shale gas resource, market, policies and pipeline network as compared to the United States and resource potential and scale economic development remaining unclear. Under the present single-well cost, it is very difficult to fulfill the objective of bringing shale gas production up to 30 billion cubic meters by the year of 2020. Therefore, it is proposed that China’s shale gas development should be steadily promoted on the basis of the marine facies in Sichuan Basin while making continual efforts for economically-applicable technology and managerial innovation, reduction of cost and increase of benefit. The “sweet spots” should be selected and optimized to locate “enrichment layer” and raise the singlewell production. The more preferential policies should be formulated in support of shale gas development.

摘要： 对全球页岩气资源潜力及发展现状、中国页岩气示范区进展情况与美国页岩气发展历程进行了对比分 析，取得以下认识：海相页岩气有机质丰度高、类型好，含气量高、分布稳定、面积广，是我国页岩气勘探开发首选领 域；页岩气规模效益开发需要非常规管理和非常规技术。中国页岩气发展面临的主要问题是：页岩气资源、市场、政 策和管网配套等条件与美国相比都有较大差距；资源潜力与规模效益开发尚不明朗；在目前单井成本下，2020 年实现 300×108m3 产量目标难度非常大。据此建议：立足四川盆地海相，稳步推进我国页岩气发展；创新管理，不断探索和应 用经济适用技术，降本增效；优选“甜点”、锁定“富集层”，提高单产；继续加大页岩气开发的政策扶持力度。

关键词: 页岩气, 示范区, 降本增效, 政策扶持