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塔里木盆地内的天然气按其地化特征的差异，可分为有机气和无机气两大类；有机气又可分为海相气和陆相气。为解决不同类型天然气与地层中烃源岩的配套关系，通过应用先进的实验手段和分析技术，探讨了不同类型天然气的来源问题，得到以下认识：海相气主要分布于克拉通盆地中的塔北、塔中及巴楚地区的中生界及古生界储集层中，气源主要来自寒武—奥陶系；陆相气主要分布于前陆盆地的库车、轮台断隆以及柯克亚等地区的上、下第三系及白垩系等储集层中，气源主要来自三叠—侏罗系腐殖—偏腐殖型烃源岩。腐泥型海相气主要分布在轮南—吉拉克、英买力—东河塘、塔中主垒带及巴楚的鸟山、古董山等，气源主要来自寒武系—下奥陶统；偏腐殖型海相气主要分布在塔中北斜坡、巴楚及塔北隆起的部分区域中，气源主要来自中上奥陶统。
The natural gas in the Tarim Basin can be divided into two categories: organic gas and inorganic gas according to their differences in geochemical characteristics. Organic gas can be divided into marine gas and continental gas. In order to solve the relationship between different types of natural gas and the source rock in the strata, the source of different types of natural gas is explored through the application of advanced experimental methods and analytical techniques, and the following findings are obtained: The marine gas is mainly distributed in the craton basin In the Mesozoic and Paleozoic reservoirs in the northern, central Tazhong and Bachu regions, the source of gas is mainly from the Cambrian-Ordovician system. The continental gas is mainly distributed in the foreland basin, In the upper and lower Tertiary and Cretaceous reservoirs in Kekeya and other regions, the source of gas mainly came from the Triassic-Jurassic humus-humic source rock. The sapropel type marine gas mainly distributes in Lunnan-Jilak, Yingli-Dongheitang, the main tower in Tazhong and the bird mountains in Bachu, the ancient mountains and so on. The source of gas is mainly from the Cambrian-Lower Ordovician The humus-forming marine gas is mainly distributed in the northern slope of Tazhong, Bachu and some parts of Tabei uplift. The gas source is mainly from the Middle-Upper Ordovician.