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本文用天然气碳同位素、轻烃及储层沥青生物标志化合物的综合特征等方法，对松辽盆地北部汪家屯─宋站地区高─过熟天然气气源及运移进行了研究。结果表明，效果较好。
In this paper, the gas source and migration of high-over-mature natural gas in Wangjiatun-Songzhan area in northern Songliao Basin are studied by using the comprehensive characteristics of carbon isotopes of natural gas, light hydrocarbons and biomarkers of reservoir asphalt. The results show that the effect is better.