Abstract: Natural gas fields are generally classified into two categories:conventional and unconventional. This paper starts from these two categories of gas fields, combined with the starting age and distribution characteristics of reservoir formation of gas fields in different countries, conducts a more in-depth and detailed analysis. Meanwhile, it elaborates the current stage of China's natural gas development, and points out that China should not only carry out active exploration and development of domestic resources and unfold international trade in natural gas, but also speed up developing unconventional gas including shale gas, gas hydrates and etc.

Key words: gas field, conventional gas field, unconventional gas field

摘要： 天然气田分为常规天然气田和非常规天然气田两种,文章着重从这两种气田出发,结合世界天然气田在各国的成藏起始年代及分布特点,进行较为深入、细致的分析。同时,阐明了我国天然气开发的现状,指出我国除需积极勘探开发国内资源及开展天然气国际贸易外,还需加快探索本国非常规天然气如页岩气、天然气水合物等的开发。

关键词: 天然气田, 常规天然气田, 非常规天然气田