摘要
通过分子地球化学参数和碳同位素特征对维京地堑南部上、中侏罗统烃源岩抽提物和原油及凝析油特征属性的研究,确立了烃源岩的生烃条件,同时建立了储层中烃类物质与烃源岩之间的相关性。研究分析认为7类原油与3组源岩有关,分别为:上侏罗统上Draupne组泥页岩、下Draupne组和赫赛尔组泥岩、中侏罗统Hugin和Sleipner组腐植煤及碳质泥岩。上侏罗统Draupne组源岩为主力烃源岩层,储层中84%的烃类物质来源于此目的层。
Oil and condensate samples,as well as extracts of Upper and Middle Jurassic Source rocks in the South Viking Graben were analyzed for geochemistry and isotopic composition in order to find out the characteristics of hydrocarbons and the genetic relationships between hydrocarbon and source rocks.Seven hydrocarbon families are linked to three source horizons,they are,the mudstones of Upper Draupne Formation;the mudstone of Lower Draupne Formation,and the carbonaceous shale and coals of the Middle Jurassic Hugin and Sleipner Formation.The Upper Jurassic Draupne Formation is the principle source rock.Available data in this study indicate that 84% of recoverable oil resources came from the Upper Jurassic Draupne Formation.
出处
《海洋地质前沿》
2012年第3期40-46,共7页
Marine Geology Frontiers
基金
国家专项"全球油气地质综合研究与区域优选--西北欧海域油气地质综合研究与区域优选"(GT-YQ-QQ-2011-7-23)
关键词
维京地堑南部
烃源岩
生物标志物
碳同位素
油源对比
South Viking Graben
hydrocarbon source rock
biomarkers
isotopes
oil and source relationship
