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在Beryl湾发育南北向、北西向和北东向三组正断层。根据北海维京地堑Beryl淘73口井的高分辨率层序地层学分析和高分辨率沉降分析,阐明中、晚侏罗世沉积和沉降模式,确定应力场的变化及边界断层的连锁对沉积和含油气系统的控制作用。高分辨率(1~2Ma)允许评价不同走向断层随时间的演化。不仅阐明了东舍德兰断层连锁的时间和机制,而且阐明了对沉积相的控制作用。研究结果表明,在中、晚侏罗世同裂谷期Beryl湾伸展方向发生了45°的顺时针旋转;东舍德兰断层在早、中牛津期由两段连锁为一条统一的断层。
In Beryl Bay development north-south, north-west and north-east normal faults. According to the high resolution sequence stratigraphy analysis and high resolution settlement analysis of Beryl Tao 73 wells in Viking Graben, Northwestern China, the sedimentary and sedimentary models of Middle and Late Jurassic are clarified to determine the change of stress field and the linkage of boundary faults Sedimentary and petroleum system control. High resolution (1 to 2Ma) allows the evaluation of the evolution of different strike faults over time. It not only clarifies the timing and mechanism of East Shetland fault linkage, but also clarifies the control of sedimentary facies. The results show that 45 ° clockwise rotation occurs in the extension direction of Beryl Bay during the same rift period in the middle and late Jurassic, and the East Shetland Fault is interlocked by two segments in the early and middle Oxford.