我国页岩气开采技术及前景展望

Exploitation Technology and Prospect of Shale Gas in China

随着能源需求的不断加大以及美国“页岩气革命”获得成功,页岩气成为非常规油气资源的新兴力量,页岩气勘探开发成为世界各国关注的热点。我国页岩气资源丰富,分布面积较广,开发潜力巨大。通过对国内外页岩气开发现状的调研,分析、对比水平井多段压裂、同步压裂等先进的页岩气开采技术对我国页岩气开采的适应性,优选适于我国地质条件的先进开采工艺技术,激发我国在页岩气开采方面的活力。目前,我国正在积极推动页岩气勘探与开发工作,但仍存在诸多问题需深入研究。以四川、渝东、黔北和沁水等地区为重点,开展重点层系页岩气开采技术调研。其中,渝东南奥陶统五峰组和下志留统龙马溪组海相页岩气勘探已取得重大突破。现阶段美国凭借着丰富的页岩油气资源、成熟的页岩油气开采技术,成为世界上页岩气开发最多的国家,彻底摆脱了对进口石油和天然气的依赖,一举成为石油和天然气出口大国。为我国页岩气勘探开发提供良好的借鉴经验。

With the increasing of energy and the success of the American “Shale gas revolution”, shale gas has been an emerging force in unconventional oil and gas resources;and shale gas exploration and development have been a hot spot in the world. China’s shale gas is characterized by abundant resources, wide distribution area and huge development potential. Through the investigation of the status quo of shale gas development at home and abroad, the analysis and comparison of the advanced shale gas mining technology of horizontal well multi-stage fracturing and synchronous fracturing to adapt to shale gas mining in China is optimized for the geological conditions in China. Mining technology has stimulated China’s vitality in shale gas mining. At present, China is actively promoting the exploration and development of shale gas, but there are still many problems that need to be studied in depth. Focusing on areas such as Sichuan, Yudong, Qianbei and Qinshui, we will carry out research on key shale gas mining technology. Among them, the southeastern Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation marine shale gas exploration have made major breakthroughs. At this stage, the United States has become the world’s largest shale gas development country with its rich shale oil and gas resources and mature shale oil and gas exploitation technology. It has completely shed the dependence on imported oil and natural gas and has been a major exporter of oil and natural gas. It provides a good reference experience for shale gas exploration and development for China.