摘要
应用生物标志化合物各项油源及生源指标,对渭北铜川一耀县一带延长组、延安组油、岩的亲缘关系、生源特征进行了对比分析,认为延长组砂质储层和延安组煤层中的原油,其源岩均是延长组第二、三段暗色泥岩。不同层系原油物性的差异主要是由次生降解作用所致。
The genetic relation hip of oil and rock in Yanchang and Yanan Formations in Weibei area and the characteristics of the biotic source were correlatively analysed by means of indexec of oil and biotic sources of biotic guide compounds,It is considered that the source rack of sandy oil reservoirs in yanchang Formation and crnde oil in coal seams in the Yanan Formation is dark macstone in the second and the third members of Yanchang Formation, The physical property differences of crude oil in different strata were mainly resulted from, the secondary degrardation.
出处
《煤田地质与勘探》
CAS
CSCD
北大核心
1991年第1期11-14,共4页
Coal Geology & Exploration
