松辽盆地东岭区块烃源岩成熟度

Maturity of source rocks in Dongling Area of Songliao Basin

崔 鸣 朱战军 王雁冰 孙 薇 刘 锋 汤志勇 彭国亮

中原油田分公司勘探开发科学研究院，河南 濮阳 457001 中国石油化工股份有限公司石油勘探开发研究院，北京 100083 天然气川气
东送管道分公司，湖北 武汉 430077 中原石油勘探局测井公司，河南 濮阳 457001 中原油田分公司采油三厂，山东 莘县 252439

Research Institute of Exploration and Development, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China Research Institute of Petroleum Exploration and Development, SINOPEC, Beijing 100083, China Sichuan to Eastern China Gas Transmission Pipeline Company, SINOPEC,Wuhan 430077, China Well Logging Company, Zhongyuan Petroleum Exploration Bureau, SINOPEC, Puyang 457001, China No.3 Oil Pruduction Plant, Zhongyuan Oilfield Company, SINOPEC, Shenxian 252439, China

松辽盆地东岭区块烃源岩抽提物具有饱和烃质量分数大、非烃＋沥青质质量分数小、碳同位素较轻的特征。利用GC/MS技术对烃源岩抽提物分析，结果为：饱和烃馏分中C29甾烷立体异构体比值、三降藿烷Ts／Tm比值、C31藿烷22S/(22S+22R)表明东岭区块烃源岩达到热演化平衡值。芳烃馏分的色谱分布特征、甲基菲指数、4-/1-MDBT和2，4-/1，4-DMDBT比值等参数都表明泉头组烃源岩处于中等成熟度，营城组和上侏罗统火石岭组烃源岩处于较高成熟度。

Extracts of source rocks are of characteristics of high content of saturated hydrocarbons, low content of non-hydrocarbon and asphaltene, and light carbon isotope in Dongling Area of Songliao Basin. The maturity parameters of saturated hydrocarbon coming from the GC-MS analysis results, such as the isomer ratio of C29 sterane, the ratio of trisnorhopane Ts/ Tm and C31 22S/(22S+22R), show that the source rocks reached thermal maturity stage in Dongling Area. The distribution characteristics of aromatic chromatography, MPI, the ratios of 4-/1-MDBT and 2,4 -/1,4-DMDBT, all of those maturity parameters suggest that the Quantou Group should lie in middle maturity stage, whereas the Yingcheng Group and the Huoshiling Group of Upper Jurassic reached high maturity stage.