东濮凹陷西斜坡油藏地球化学特征与油气源对比  

Geochemistry Characters and Oil and Gas Source Correlation in the Reservoirs of West Slope in Dongpu Depression

作　　者：苏惠[1] 张金川[1] 曲丽萍[2] 王立志[2] 王萍霞[2] 何锋[2] 

机构地区：[1]中国地质大学(北京),北京100083 [2]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《石油天然气学报》2005年第6期711-715,共5页Journal of Oil and Gas Technology

基　　金：国家自然科学基金(40472073);中国石油化工集团公司重点科技项目(P04022)

摘　　要：东濮凹陷西斜坡原油分为Ⅰ类轻质稀油、Ⅱ类中质稀油和Ⅲ类中质稠油三种类型。Ⅰ类轻质稀油具有较高的成熟度,主要来自近洼柳屯、海通集洼陷沙三3,4亚段高成熟烃源岩;胡庆主体油田的Ⅱ类中质稀油一方面来自柳屯、海通集洼陷,另一方面是本身源岩自生自储所致;胡19块、马寨油田Ⅲ类中质稠油来自马寨洼陷低熟烃源岩,柳屯洼陷高熟烃源岩生成的油气对胡19块贡献不大。西斜坡油气以近距离、短距离运移为主,因此明确了下步勘探和挖潜的主要方向在生油气洼陷的周边、主断裂带两侧和构造的二台阶。There are 3 types of crude oils in the west slope of DOngpu Depression,such as light thin oilⅠ,mid-thin oil of Type Ⅱand mid-heavy oil of Type Ⅲ.The light oilⅠhas higher maturity,which is from Es3 and Es4 highly matured source rocks in near depression,Liutun and Haitongji Depressions,the mid-light oil of Type Ⅱin HU-qing Oilfield is from Liutun and Haitongji Depressions and caused by self-generated and self-stored source rocks,and mid-heavy oil of Type Ⅲ in Block Hu19 and Mazhai Oilfield is from the low matured source rocks of Mazhai Depression.The oil and gas generated in the highly matured source rocks of Liutun Depression have no big contribution to Block Hu19.Oil and gas in the west slope are dominated by near and short distance migration.Thus it is determined that the directions for next exploration and tapping the potential are concentrated on the circumference of hydrocarbon generation,at both sides of major fault and at the 2nd step of a structure.

关 键 词：油藏地球化学 油气源对比 东濮凹陷 西斜坡 

分 类 号：P618.13[天文地球—矿床学]