龚建明, 雷宝华, 李桂海, 张生银, 廖晶. 晚侏罗世裂谷运动对北海盆地油气富集的控制作用[J]. 海洋地质前沿, 2012, 28(3): 34-39.
    引用本文: 龚建明, 雷宝华, 李桂海, 张生银, 廖晶. 晚侏罗世裂谷运动对北海盆地油气富集的控制作用[J]. 海洋地质前沿, 2012, 28(3): 34-39.
    GONG Jianming, LEI Baohua, LI Guihai, ZHANG Shengyin, LIAO Jing. LATE JURASSIC-EARLY CRETACEOUS RIFTING IN NORTH SEA AND ITS CONTROL ON HYDROCARBON ACCUMULATION[J]. Marine Geology Frontiers, 2012, 28(3): 34-39.
    Citation: GONG Jianming, LEI Baohua, LI Guihai, ZHANG Shengyin, LIAO Jing. LATE JURASSIC-EARLY CRETACEOUS RIFTING IN NORTH SEA AND ITS CONTROL ON HYDROCARBON ACCUMULATION[J]. Marine Geology Frontiers, 2012, 28(3): 34-39.

    晚侏罗世裂谷运动对北海盆地油气富集的控制作用

    LATE JURASSIC-EARLY CRETACEOUS RIFTING IN NORTH SEA AND ITS CONTROL ON HYDROCARBON ACCUMULATION

    • 摘要: 为了探讨北海盆地油气富集的控制因素,对前人在该区的大量研究成果进行了整理和分析,结果显示,北海盆地三叉裂谷所在的3个地堑具有上下2层不同的结构特征,即晚侏罗世末期的裂谷拉伸运动造就了北海盆地的下构造层,而早白垩世之后的热沉降作用塑造了北海盆地的上构造层;断层主要分布在下白垩统之下的老地层中。北海盆地油气成藏组合主要受下构造层的控制,成藏模式主要表现为中生代砂岩断—背斜油气藏,因此,可以认为,北海盆地油气富集的主要控制因素是晚侏罗世—早白垩世的裂谷拉伸运动。

       

      Abstract: Controlling factors on hydrocarbon accumulation in the North Sea Basin were studied in this paper based on previous research data. It reveals that there is a double-layer structure in the trifurcate rift grabens. The lower layer is a faulting structure formed by the movement of stretch rifting by the end of Late Jurassic, while the upper is a depressed structure formed by the thermal subsidence after Early Cretaceous. Most of the main faults occurs in the strata older than Cretaceous. The plays of hydrocarbon accumulation are Mesozoic fault-anticline sandstone controlled by the lower rift structure. Therefore, the rift stretching during Late Jurassic-Early Cretaceous is the main controlling factor to hydrocarbon accumulation.

       

    /

    返回文章
    返回