石油与天然气地质 ›› 2004, Vol. 25 ›› Issue (6): 696-702.doi: 10.11743/ogg20040619

• 勘探开发 • 上一篇    下一篇

柴北缘马海-大红沟凸起油气成藏模式与有利勘探目标

汪立群1,2, 庞雄奇1, 党玉琪1,2, 马达德1,2, 马立协2   

  1. 1. 石油大学石油天然气成藏机理教育部重点实验室,北京 102249;
    2. 中国石油青海油田公司,甘肃敦煌 736202
  • 收稿日期:2004-12-02 出版日期:2004-12-25 发布日期:2012-01-16
  • 基金项目:

    中国石油天然气集团公司"九五"重点科技攻关项目(970208)

Reservoiring patterns and favorable exploration targets in Mahai-Dahonggou salient in the northern edge of Qaidam basin

Wang Liqun1,2, Pang Xiongqi1, Dang Yuqi1,2, Ma Dade1,2, Ma Lixie 2   

  1. 1. Key Laboratory for Hydrocarbon Accumulation, University of Petroleum, Ministry of Education, Beijing;
    2. Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu
  • Received:2004-12-02 Online:2004-12-25 Published:2012-01-16

PDF (PC)

571

被引次数

30

摘要：

柴北缘马海-大红沟凸起油气成藏模式可概括为:深部为早期原生成藏,长期充注模式,具有多期(至少两期)油气运移成藏特征;浅部为早期排烃聚集,晚期次生成藏模式,具有晚期一次成藏的特征。古凸起区的两大构造运动、两套断裂体系所对应的圈闭形成期和成藏期是形成两种不同类型油气藏的关键。绿南山前构造带、马海-黄泥滩构造带、南八仙-东陵丘背斜带、以及马海构造的西南翼和东南翼的地层超覆区是今后勘探的重点目标。

关键词: 马海-大红沟凸起, 油气成藏, 成藏模式, 勘探目标, 柴北缘

Abstract:

This paper summarizes the reservoiring patterns in Mahai Dahonggou salient in northern edge of Qaidam basin. Reservoiring pattern in the deeper part is of early primary accumulation with long period of hydrocarbon charging, which is characterized by multi stage (at least two stages) hydrocarbon migration and reservoiring. While Reservoiring pattern in the shallower part is of early expulsion and accumulation and late secondary reservoiring, which is characterized by late and once reserviring. Trap forming stages and reservoiring stages that are corresponding to the two major tectonic movements and two fault systems in the palaeo salient area are critical to the formation of these two different types of accumulations. Lunanshan piedmont structural zone, Mahai Huangnitan structural zone, Nanbaxian Donglingqiu anticlinal zone and the stratigraphic overlapping areas on the southwest and southeast limbs of Mahai structure are the major exploration targets in the future.

Key words: Mahai dahonggou salient, hydrocarbon accumulation, reservoiring pattern, exploration target, northern edge of Qaidam basin

中图分类号: