摘要
针对塔里木盆地英买力地区白垩系地层断裂发育的特点,利用断层分段生长的原理,研究分段生长的断层对油气富集的控制作用,结合最大断距相减法确定英买9区块白垩系巴西改组8条断层的分段生长情况,预测断层边部油气分布的有利区域。研究认为,英买9区块在局部应力场作用下,早期形成的先存裂缝会沿着滑动面开始活动,逐渐形成具有一定断距的小型断层,断层在分段生长点处的抬升或沉降幅度要比周围小,河流会携带沉积物经过上升盘分段生长点,向下降盘断层分段生长点处汇集,是局部构造高部位形成的重要原因。
According to the development characteristics of faults in Cretaceous formation of Yingmaili area of Tarim Basin,the control effect of segmented growing faults on the oil and gas enrichment using the fault segmentation growth principle. The segmentation growth of 8 faults in the Cretaceous Baxigai Formation of Yingmai 9 block is determined based on the maximum fault interval subtraction method,and the favorable hydrocarbon distribution areas in the fault margin are predicted. It is shown that,under the influence of local stress field,the pre-existing fractures in Yingmai 9 block will begin to move along the sliding surface and gradually form a small fault with a certain fault distance. The uplift or subsidence of the fault at the segmented growth point is smaller than that of the surrounding area,and the rivers carrying sediment come together towards to the fault segmentation growth point of downthrow block through the fault segmentation growth point of upthrow block,which is an important reason for the formation of local high positions of structures.
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2018年第1期7-14,共8页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
中国石油天然气股份有限公司重大科技专项"塔里木油田勘探开发关键技术研究与应用-碎屑岩凝析气田稳产技术"(2014E-2108)
关键词
英买9区块
剩余油
断层
分段生长
Yingmai 9 block
residual oil
fault
segmentation growth
