同位素比率直接用于比较各种石油或天然气。
The isotope ratio is directly used for comparing oils or gases.
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.
文中还通过储层中的天然气与气源岩生成天然气之碳同位素特征的分析对比，对各类天然气的展布特征进行了探讨。
The malleabilities of various types of gas are discussed in this paper according to the carbon isotope characteristics of the gas in reservoir and gas from gas source rock.
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