地质科技情报2011，Vol.30Issue(6)：105-109,5.
再论“麻江古油藏”烃源岩
Restudy of the Source Rock of Majiang Paleo-Reservoir
摘要
Abstract
At present, there still remain disputes about the source rock of Majiang paleo-reservoir. The bitumen and oil seepage in the working area are analyzed by Rock-Eval and saturated hydrocarbon chromatog-raphy, and the free carbon isotopic composition in n-alkane of them-are determined. The results show that the maturity of bitumen in O1d+h Formation in Majiang and Danzhai is higher than that of oil seepage in S2W formation in Kaili. The Pr/Ph ratio of bitumen is >1, but that of oil seepage is <1. The free carbon isotopic composition in n-alkane of bitumen in Majiang and Danzhai are heavier >-32. 5%o) , and its curve shapes are wavelike. The free carbon isotopic composition are comparable of those of kerogen in the lower Cambrian source rock. But those of S2W oil seepage in Kaili are lighter, and their curve shapes tend to be horizontal, and the oil seepage sources from the shale in the second section of Wangxiang Formation.关键词
麻江古油藏/烃源岩/Pr/Ph/正构烷烃/碳同位素Key words
paleo-reservoir/source rock/Pr/Ph/n-alkane/carbon isotope分类
能源科技引用本文复制引用
林家善,谢渊,刘建清,赵瞻,景小燕,程浩..再论“麻江古油藏”烃源岩[J].地质科技情报,2011,30(6):105-109,5.基金项目
中国地质调查局项目([2007]035-05) （[2007]035-05）
