从CO2分布特征入手，利用其天然气碳同位素图版分析了松辽盆地南部CO2成因类型；
This paper analyzes the genesis of the CO2 of the southern part of Songliao Basin using carbon isotope chart of natural gas starting with the distribution characteristic of CO2.
由天然气碳同位素特征，可以得出西部斜坡区存在着大量的油型气，它们主要分布在泰康隆起带上。
According to isotope characteristics of gas, this paper considered there is a lot of oil-type gas in Western Slope, they distribute on Taikang uplift zone.
根据碳同位素与氦同位素以及气组成分析，表明该区所产天然气为典型的生物甲烷气。
According to the results of carbon and helium isotopic analyses and gas component analysis, it is thought that the natural gas produced in the region belongs to a typical biogenic methane gas.
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