石油钻采工艺2009，Vol.31Issue(z1)：1-8,8.
冀中坳陷沉积演化与岩性油气藏勘探
Depositional evolution and lithologic reservoir exploration in Jizhong depression
摘要
Abstract
Based on analyses of a large amount of drilling data, logging curves, seismic information and paleontologic fos-sils, the sequence framework and depositional evolution of paleogene in Jizhong depression were studied. The results show that the strata of paleogene can be divided into one first-order sequence, three second-order sequences and thirteen third-order se-quences. The depositional evolution of paleogene has experienced five filling types and made a vertical filling series from fault-subsidence to depression period. Moreover, the relationships between three oil-bearing groups in upper, middle and lower parts of vertical section and distribution of lithologic reservoir were investigated. According to three geological key elements including structural setting, sequence types and sedimentary systems, four types and twenty kinds of structure-petrographical, zonations are summarized in different zones, such as steep slope, sub-sag area, gentle slope and central uplift. For different oil-bearing groups, comprehensive evaluation for favorable exploration zones from shallow to deep strata was conducted. Fourteen types of structure-petrographical zonations were finally selected as favorable exploration zones. The work can provide reference for ex-ploration of lithologic reservoir effectively.关键词
冀中坳陷/古近系/层序格架/沉积演化/成油组合/构造岩相带/岩性油气藏Key words
Jizhong depression/Paleogene/sequence framework/depositional evolution/oil-bearing group/structure-pe-trographical zonation/lithologic reservoir分类
能源科技引用本文复制引用
梁宏斌,崔周旗,卢学军,王海潮,董雄英,彭宁..冀中坳陷沉积演化与岩性油气藏勘探[J].石油钻采工艺,2009,31(z1):1-8,8.基金项目
中石油重大科技攻关项目"渤海湾盆地精细勘探与滩海大油气田分布规律研究"(编号:2008B-0300)和子课题"冀中坳陷油气勘探新领域地质特征研究"(编号:2008B-0303)联合资助. （编号:2008B-0300）
