中扬子区南华纪以来盆地演化与油气响应特征

CHARACTERISTICS OF BASIN EVOLUTION AND HYDROCARBON RESPONSE IN MIDDLE YANGTZE REGION SINCE NANHUA PERIOD

刘新民 付宜兴 郭战峰 王有来 梁西文

Liu Xinmin Fu Yixing Gou Zhanfeng Wang Youlai Liang Xiwen

中国石油化工股份有限公司, 江汉油田分公司, 勘探开发研究院, 湖北, 潜江, 433124

Research Institute of Petroleum Exploration and Development, Jianghan Oilfield Company, SINOPEC, Qiangjiang, Hubei 433124, China

分析了中扬子区南华纪以来的盆地演化史,指出其先后经历了加里东期、海西期—早燕山期、晚燕山期—喜山期3个大的盆山演化旋回,每个旋回都经历了早期的盆地初始沉降、盆地大规模发育到最后闭合造山的过程.结合盆地演化分析,探讨了不同时期油气的响应特征,重点分析了烃源岩、储集岩的发育特征、控制因素以及古隆起对于油气成藏的控制作用,指出早印支期以前油气运移基本受古隆起控制,以侧向运移为主,是油气藏的建设时期;晚印支—早喜山期油气藏以调整、破坏为主,小范围内的垂向运移是主要的运移方式;晚喜山期是油气成藏定型时期.

This artical analysed the basin evolution since Nanhua period in the Middle Yangtze region,and pointed out it undergo Caledonian,Hercynian-Early Yanshanian and Late Yanshanian-Himalayan three basin-mountain evolution cycle,rearched the response characteristics of hydrocarbon to basin evolution.The development characteristics and controlling factors of sourse rocks and reservoir rocks,and the control of paleouplift to hydrocarbon were analysed.Before Early Indosinian period,hydrocarbon migration were controlled by paleouplift.Parallel migration were main manner,and hydrocarbon were accumulated.In Late Indosinian-Early Himalayan period,the hydrocarbon were mainly destroied and regulated.The short range vertical migration were main manner.Hydrocarbon accumlation were finalizd in Late Himalayan period.

全国油气资源战略选区调查与评价项目(XQ-2007-02)

https://doi.org/10.11781/sysydz200902160