地质与资源2023，Vol.32Issue(6)：720-731,12.DOI:10.13686/j.cnki.dzyzy.2023.06.009
辽河断陷盆地地层划分对比标志研究
MARKER BEDS FOR STRATIGRAPHIC DIVISION AND CORRELATION IN LIAOHE FAULT BASIN
摘要
Abstract
The Paleogene system is characterized by violent segmentation,greatly various thickness and lithology vertically and horizontally as a result of the complex geological structure of Liaohe fault basin.Finding and identifying marker beds for fine stratigraphic division and correlation have always been the difficulty in stratigraphic research in the area,thus restricting the deployment of oil-gas exploration and development.Based on the analysis of tectonic sedimentary evolution of the basin,the paper systematically studies nearly 1 000 exploratory wells in the Western Sag through multiple stratigraphic division and correlation,identifying 7 regional marker beds of Paleogene,describing the contact relations and lithologic-electric characteristics for 14 types of bottom boundaries of Paleogene Shahejie Formation,and dividing different distribution areas by bottom boundary types within one stratigraphic unit on the basis of representative wells,which makes the stratigraphic division and correlation of continental fault basins more simple,detailed and easy to operate,and provides basic support for fine oil and gas exploration.关键词
标志层/地层划分对比/岩电特征/沙河街组/西部凹陷/辽河断陷Key words
marker bed/stratigraphic division and correlation/lithologic and electric property/Shahejie Formation/Western Sag/Liaohe fault basin分类
天文与地球科学引用本文复制引用
吴炳伟,翁文胜,张静,陈昌,崔晓磊,周铁锁,张子璟,王建飞,张东伟,李敬含,孙转..辽河断陷盆地地层划分对比标志研究[J].地质与资源,2023,32(6):720-731,12.基金项目
国家科技重大专项"渤海湾盆地北部油气富集规律与增储领域研究"(2011ZX05006-005) （2011ZX05006-005）
中国石油天然气股份有限公司重大科技专项"辽河探区可持续规模增储勘探关键技术研究"(2017E-1601) （2017E-1601）
辽河油田公司科技项目"辽河坳陷区域构造演化与主要构造层分布"(2023QZJC-02). （2023QZJC-02）
