新疆石油地质

新疆石油地质 ›› 1995, Vol. 16 ›› Issue (1): 33-37.

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准噶尔盆地腹部马桥凸起侏罗系油源分析

王绪龙, 刘得光   

  1. 新疆石油管理局勘探开发研究院 克拉玛依 834000
  • 收稿日期:1994-04-25 出版日期:1995-03-01 发布日期:2020-07-28
  • 作者简介:王绪龙: 高级工程师 石油地质

OIL SOURCE CORRELATION OF JURASSIC ON MAQIAO ARCH IN THE HINTERLAND OF JUNGGAR BASIN

Wang Xulong, Liu Deguang   

  1. Senior Engineer, Petroleum Geology Research Institute of Exploration and Development, Xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1994-04-25 Online:1995-03-01 Published:2020-07-28

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摘要： 准噶尔盆地腹部马桥凸起上的侏罗系原油, 根据地球化学特征可分为三组, 第Ⅰ组原油分布于头屯河组、西山窑组和三工河组上部；第Ⅱ组原油分布于三工河组下部和八道湾组；第Ⅲ组原油为盆4井八道湾组5220.05m处的油砂抽提物。油源对比结果表明, 马桥凸起侏罗系原油与盆地西北缘第二、三类原油具有良好的可对比性, 推测主要油源为二叠系和石炭系, 部分原油有少量中生界烃源混入。马桥凸起至少存在两次成藏期, 第一次在侏罗纪, 第二次在白垩纪至早第三纪。

关键词: 准噶尔盆地, 马桥凸起, 侏罗系, 原油对比, 油源对比

Abstract: Oil from the Jurassic on Maqiao arch in the hinterland of Junggar basin can be geochemically divided into three groups： group I, occurring in Toutunhe formation, Xishanyao formation, and upper Sangonghe formation; group I, occurring in lower Sangonghe formation and Badaowan formation (excluding oil in group Ⅱ ); and group Ⅱ, extracts from oil sand at 5 220, 05 m (Badaowan formation) in Well Pen-4. Oil source correlation demonstrated that oil from the Jurassic on Maqiao arch correlated well with type I and Ⅱ oil in the northwest margin of Junggar basin and major source rock is inferred to be the Permian and Carboniferous, with minor amount of Mesozoic source rock. At least two phases occurred for formation of reservoir on Maqiao arch： Jurassic and Cretaceous-Early Tertiary.

Key words: Junggar basin, Maqiao arch, Jurassic, Crude oil correlation, Oil source correlation