营尔凹陷原油族群划分及勘探意义

Xinjiang Petroleum Geology(2007)

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Abstract
酒泉盆地营尔凹陷原油地球化学性质较相似,但可细分为若干族群,选择原油族组分、轻烃及生物标志化合物参数,结合原油的地质产层将原油分为3个族群。油源对比表明,3组原油分别与中沟组、下沟组下段、赤金堡组烃源岩存在亲源关系。通过原油族群划分,中沟组、下沟组下段、赤金堡组为营尔凹陷3套各自独立成藏系统,勘探中要分别予以重视。
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Key words
source correlation,crude group,biomarker,Lower Cretaceous,Jiuquan basin
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