摘要
采用GC-MS分析技术分析了东濮凹陷西斜坡胡状集和庆祖集油田原油芳烃化合物的成熟度参数,包括烷基二苯并噻吩(MDBT)系列、脱羟基维生素E和三芳甾烷(TAS)系列化合物。分析结果表明,芳烃化合物分布特征、脱羟基维生素E的β/γ异构体比值、4-/1-MDBT值、4,6-/1,4-DMDBT值、C20/(C20+C26)TAS值以及三芳甾烷的相对含量,均反映东濮凹陷西斜坡二台阶构造带内的原油为烃源岩低熟阶段的产物,而长垣断层断裂带和长垣断层下降盘的原油属于烃源岩成熟阶段的产物。
The maturity parameters for thermal evolution of aromatics such as alkylated dibenzothiophenes (MDBT), dehydroxylvitamin E and triaromatic-sterane (TAS series) compounds of crude oil of Huzhuangji-Qingzuji oilfield in the west slope of Dongpu Depression were analyzed by the GC-MS technology, The distribution characteristics of aromatic chromatography, the value of β/γ dehydroxyl-vitamin E, the values of 4-/I-MDBT, 4,6-/t ,4-DMDBT and C20/(C20 + C26 )TAS, and the content of triaromatic-sterane series suggest that the crude oil distributed in second step structure was derived from the low-maturity hydrocarbon source rocks, while the crude oil distributed in Changyuan fault zone and the first step structure was derived from the maturity hydrocarbon source rocks.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2006年第5期51-55,共5页
Acta Petrolei Sinica
基金
中国石油化工集团公司科技攻关项目(2003-3-005)部分成果
关键词
东濮凹陷
烃源岩
断裂带
地球化学特征
芳烃化合物
成熟度参数
Dongpu Depressiom hydrocarbon source rocks
fault zone
geochemical characteristics
aromatic compound
maturityparameter