塔里木盆地台盆区奥陶系储层烃包裹体成熟度  

Hydrocarbon inclusion maturity of Ordovician reservoirs in craton area of Tarim Basin

作　　者：蒋静[1] 张鼐[2] 潘文龙[3] 房启飞[4] 赵欣[5] 余小庆[2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石油勘探开发研究院,北京100083 [3]中国石油大港油田公司勘探开发研究院,天津300280 [4]中国石油勘探开发研究院西北分院,甘肃兰州730020 [5]中国地质大学地球科学与资源学院,北京100083

出　　处：《石油学报》2016年第5期644-652,679,共10页Acta Petrolei Sinica

基　　金：中国石油塔里木油田公司科研项目(041014080008)资助

摘　　要：利用生物标志化合物的构型异构特征,通过色谱-质谱分析技术(GC-MS)研究塔里木盆地台盆区烃包裹体的甾烷和藿烷参数特征来分析区内烃包裹体的成熟度。塔北和塔中地区海相碳酸盐岩烃包裹体主要为中—高成熟度,不同地区及期次可能有细微差异:塔北地区晚海西期烃包裹体成熟度在各地区相差较大,牙哈—金跃—热普地区烃包裹体均达到高成熟而其他地区为成熟;塔中地区晚海西期和燕山期—喜马拉雅期烃包裹体成熟度整体上比塔北地区高,认为相同期次油气充注时间比塔北地区相对较晚。塔中地区储集层原油成熟度整体比塔北地区低,说明塔北地区受后期改造作用较强。塔北地区油气以晚海西期和燕山期—喜马拉雅期两期油气为主要贡献,塔中地区燕山期—喜马拉雅期油气贡献度更大。Based o n the configuration heterogeneous characteristics of biomarkers, the sterane and hopanoid characteristics of hydrocarboninclusions in craton area of T a r i m Basin are studied using chromatography-mass spectrometry （ G C - M S ） , so as to analyze thematurity of hydrocarbon inclusions. T h e hydrocarbon inclusions of marine carbonates in N o r t h T a r i m and Central T a r i m mainly s h o wmid-high maturity, and slisght differences might exist a m o n g different regions and stages. In N o r t h T a r i m during the Late Hercynian,the maturity of hydrocarbon inclusions varied a lot in each region. H y d r o c a r b o n inclusions in Yaha-Jinyue-Repu area were highly m a ture,while mature in other regions. A s c o m p a r e d with N o r t h Tarim, the maturity of hydrocarbon inclusions w a s comprehensivelyliigher in Central T a r i m during the Late Hercynian and Y a n shan-Himalayan, w h e r e hydrocarbon charging in the s a m e stage w a s consideredposterior to N o r t h Tarim. T h e maturity of crude oil in Central T a r i m w a s lower than that in N o r t h T a r i m as a whole, indicatingthat N o r t h T a r i m underwent m o r e severe late reformation. T h e hydrocarbons in both Hercynian and Y a n s h a n - H i m a l a y a n stagesm a d e a major contribution in N o r t h Tarim, while those had a greater contribution in Central Tarim.

关 键 词：塔里木盆地 甾烷 藿烷 成熟度 烃包裹体 

分 类 号：TE122.14[石油与天然气工程—油气勘探]