页岩气是从页岩层中开采出来的天然气,是一种重要的非常规天然气资源。页岩气往往分布在盆地内厚度较大、分布广的页岩烃源岩地层中。页岩气开发具有开采寿命长和生产周期长的优点,大部分产气页岩分布范围广、厚度大,且普遍含气,使得页岩气 Shale gas is natural gas extracted from the shale layer and is an important unconventional natural gas resource. Shale gas is often distributed in thick, widely distributed shale source rocks in the basin. Shale gas development has the advantages of long mining life span and long production cycle. Most gas-producing shales have a wide range of distribution, large thickness and generally gas-bearing, making shale gas