全球致密气勘探开发进展及中国发展趋势预测

致密气已成为全球非常规天然气勘探开发的重要领域之一,特别是美国致密气大规模开发利用,推动了许多国家进行致密气勘探开发的进程。从全球致密气勘探开发进展情况入手,对我国致密气的勘探开发历程、主要致密气田勘探开发成效、发展趋势及对策建议进行了系统研究。研究表明,我国致密气大致经历了三大发展阶段,目前已进入快速发展阶段。近年来在鄂尔多斯盆地上古生界、四川盆地须家河组、塔里木盆地库车深层发现了一批大型致密气田,致密气储量、产量均呈现出快速增长趋势,2011年致密气产量占我国天然气总产量的1/4左右,预计2020年致密气产量比例将进一步提升到1/3左右,成为支撑我国天然气工业快速、健康、稳定发展的生力军。

The exploration of global tight sandstone gas and forecast of the development tendency in China

The tight sand gas is becoming one of the most important domains in unconventional natural gas exploration & development in the world.Especially the large-scale exploration and utilization of American tight sandstone gas promotes the exploration & development in other countries.Based on a brief overview of global tight sandstone gas exploration & development,the paper carries out a systematic study on the exploration history,the exploration effect as well as the development tendency and proposals of China’s tight sandstone gas.The result shows that the development process of China’s tight gas development can be divided into three stages and is entering the fast-developing stage recently.In recent years,several large tight sandstone gas reservoirs are discovered in upper Palaeozoic of Ordos Basin,Xujiahe Formation of Sichuan Basin and deep formations of Kuqa,Tarim Basin.The reserve and production of tight sand gas have both experienced rapid growth.The production accounts for 1 /5 of China’s total nature gas production in 2011,and it is predicted to reach 1 /3 in 2020,and at that time the tight sandstone gas would become the key role in natural gas industry.