阳信洼陷油源对比  

Oil-source correlation in Yangxin Sag

作　　者：许君玉[1] 赵国欣[2] 田世澄[1] 韩文功[3] 胡春余[1] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]浙江大学理学院,浙江杭州310027 [3]中国石化股份胜利油田分公司,山东东营257001

出　　处：《油气地质与采收率》2008年第1期26-28,共3页Petroleum Geology and Recovery Efficiency

摘　　要：以沉积环境、烃源岩成熟度和母质类型等指标,对阳信洼陷进行了沉积环境分析和油源对比。研究结果表明,阳信洼陷沙四段下亚段和沙一段为半咸水—咸水的沉积环境,沙四段上亚段为微咸水—半咸水的沉积环境,沙三段为淡水—微咸水的沉积环境。该区烃源岩母质类型为水生生物、藻类和高等植物的混合来源,且沙四段偏重于藻类,沙三段和沙一段偏重于水生生物。油源为沙四段的成熟油和沙三段的低熟油,有"自生自储"和"下生上储"2种储集类型。Using indexes of indicating source rocks and oil-gas generation environment,source rock maturity and reflecting mother material type analyze sedimentary environments and oil-source correlation in Yangxin Sag.The results show that the lower Es4 and Es,belong to semi-saline to saline sedimentary environments in Yangxin Sag;the upper Es4 belongs to brackish to semi-saline water sedimentary environments;Es3 belongs to fresh to brackish sedimentary environments.The mother material types in this area are the mixture of hydrobiont,algae and higher plants,and Es4 dominated by the algae,Es3 and Es,dominated by the hydrobiont.The oil sources of Yangxin Sag are mature oil of Es4 and low mature oil of Es3.There are two reservoir types:one is source and reservoir in the same bed,another is lower source and upper reservoir.

关 键 词：油源对比 烃源岩 沉积环境 成熟度 生物标志化合物 阳信洼陷 

分 类 号：TE112.114[石油与天然气工程—油气勘探]