东濮-莘县凹陷兰聊断裂活动及对沉积的控制

发布时间：2018-04-28 18:48

本文选题：储层地质 + 沉积体系　；参考：《特种油气藏》2017年01期

【摘要】：综合地震和钻井资料,运用断层活动速率法研究兰聊断裂时空演化规律,并重点剖析同沉积期断裂活动对东濮-莘县凹陷地层厚度、空间展布及沉积体系发育的控制作用。研究表明:兰聊断裂在空间上显示出较强的分段性活动特征,东濮凹陷段(南段)活动性整体强于莘县凹陷段(北段),时间上呈现为幕式特征,具体表现为较弱—最强—较强—最弱的变化趋势;裂陷沉积期,兰聊断裂活动性强的位置对应于沉降沉积中心,地层沉降量与兰聊断裂的活动速率具有正相关性;同沉积断裂活动对盆地沉积充填背景和沉积体系类型具有明显的控制作用,构造活动强度与沉积作用相关性高的地区是隐蔽油气藏勘探有利区。该研究可为断陷湖区油气勘探提供地质依据。
[Abstract]:Based on seismic and drilling data, the temporal and spatial evolution of Lanliao fault is studied by using fault activity rate method, and the controlling effect of fault activity in the same sedimentary period on formation thickness, spatial distribution and development of sedimentary system in Dongpu-Xinxian sag is analyzed. The results show that the Lanliao fault shows strong segmental activity in space, the activity of Dongpu depression (south section) is stronger than that of Xinxian sag (north section), and the temporal feature is curtain type. The main results are as follows: (1) the change trend is weaker, strongest, stronger and weakest, the location of strong activity of Lanzhu fault in rifting sedimentary period corresponds to the center of sedimentation, and there is a positive correlation between the amount of formation subsidence and the activity rate of Lanliao fault. The synsedimentary fault activity has obvious controlling effect on the sedimentary filling background and the type of sedimentary system in the basin. The area with high correlation between tectonic activity and sedimentation is the favorable area for exploration of subtle oil and gas reservoirs. This study can provide geological basis for oil and gas exploration in faulted lake area.
【作者单位】：中国地质大学(北京);中国石油大学(华东);陕西延长石油(集团)有限责任公司;西南石油大学;
【基金】：国家自然科学重点基金“华北克拉通破坏与古太平洋板块俯冲的动力关系研究”(91114203) 国家科技重大专项“渤海湾盆地重点地区层序地层学与沉积体系研究”(2011ZX05009-002)
【分类号】：P618.13

【相似文献】