Based on heavy hydrocarbon analysis of nature gas and adsorbed gas in mother rock, this paper discusses the contributions of several source rocks to gas reservoiring in the deep Songliao Basin.

• 根据天然气重烃分析和源岩吸附气重烃分析,讨论了松辽盆地深层几套烃源岩对天然气成藏的贡献比例。