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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.