松辽盆地梨树断陷登娄库组边界类型与沉积体系展布

发布时间：2018-01-19 02:00

本文关键词： 边界沉积体系登娄库组梨树断陷　出处：《断块油气田》2017年05期 　论文类型：期刊论文

【摘要】：利用二维与三维地震资料,结合盆地构造演化史,研究了梨树断陷登娄库组边界类型与范围。结果表明,断陷北缘与南缘为剥蚀边界,东缘与西缘为资料边界。在沉积学原理指导下的钻测井资料分析表明,梨树断陷登娄库组沉积期发育辫状河三角洲与湖泊沉积,可进一步划分为3类亚相与7类微相,并主要受北部与东北部物源控制。登娄库组下部沉积期,断裂活动减弱,辫状河三角洲沉积进积到断陷南部与桑树台次洼区;登娄库组上部沉积期继承了下部的沉积格局,但进入坳陷期后,古地貌变缓,前缘亚相扩大。
[Abstract]:Based on the 2D and 3D seismic data and the history of tectonic evolution of the basin, the boundary types and ranges of Denglouku formation in the Lish fault depression are studied. The results show that the northern and southern margin of the fault depression are denudation boundaries. Under the guidance of sedimentology principle, the analysis of drilling logging data shows that braided river deltas and lacustrine deposits developed in the sedimentary period of Denglouku formation in Lish fault depression. It can be further divided into 3 subfacies and 7 microfacies, which are mainly controlled by the north and northeast provenances. Braided river delta sedimentary progradation to the south of the fault depression and mulberry subsag area; The upper part of the Denglouku formation inherited the lower sedimentary pattern, but after entering the depression period, paleogeomorphology became slower and the front subfacies expanded.
【作者单位】：中国地质大学(北京)能源学院;
【基金】：国家科技重大专项“复杂油气田地质与提高采收率技术”(2011ZX05009)
【分类号】：P618.13
【正文快照】： 0引言梨树断陷油气勘探开始于20世纪60年代,针对梨树断陷中央构造带和东部斜坡带的油气勘探成果丰硕,探明了十屋油田、八屋气田、秦家屯油田、七棵树油田等,表明其具有较好的油气勘探前景[1-2]。该区的勘探时间虽然比较早,但是主要集中在下白垩统的沙河子组和营城组[3-7],对登

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