摘要
通过典型单井的岩心生物相分析,建立了南堡凹陷古近系地层的5种生物相环境模式。通过生物相的时空展布建立了南堡凹陷古湖水分布样式;同时结合该时期的构造活动,建立了南堡凹陷古近纪各组段生物相分布特点及其与构造活动的耦合关系。研究表明,南堡凹陷古近纪古湖泊在沙三段、沙一段和东三段时期分别达到最大深度,并形成了3套重要烃源岩层系。该研究不仅是南堡凹陷沉积环境的背景分析,而且对识别层序界面、体系域构成样式也具有重要意义。
Biofacies was analyzed for typical wells based on cores,5 environmental patterns of biofacies were established,and the distribution pattern of paleo-lake was established based on temporal-spatial distribution of biofacies in the Paleogene formation in Nanpu sag. The coupling relationship between tectonic activity and biofacies distribution was established for the members of Paleogene formation in the sag. The research indicates that the Paleogene lake in Nanpu sag was the deepest in Es 3,Es 1 and Ed 3 where formed three sets of major source rocks. This research is not merely an analysis of sedimentary environment for Nanpu sag,but has significant implication for identification of sequence boundary and system tract.
出处
《特种油气藏》
CAS
CSCD
北大核心
2013年第5期57-61,153,共5页
Special Oil & Gas Reservoirs
基金
中国石油冀东油田公司科研项目"南堡凹陷构造古地貌
沉积体系
热动力学研究及有利勘探方向预测"(研2007-1)
