HYDROCARBON EXPLORATION POTENTIAL ANALYSIS OF THE LOWER MARINE FORMATION ASSEMBLAGE IN THE LOWER YANGTZE REGION
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摘要: 通过对下扬子地区"海相下组合"构造背景、生储盖发育、演化、保存以及典型实例的剖析,认为下扬子盆地北部中新生代叠置区"海相下组合"烃源岩具备长期生烃、多期次生烃的条件,同时该地区志留系高家边组大套海相泥页岩构成良好的油气封盖层。进一步研究认为,下扬子地区是印支期拼合到欧亚大陆的古板块,古板块的主体部分是历次构造运动的相对稳定区,即下扬子中央稳定带,此中央稳定带位于盐城—南黄海一带的广大区域,是下扬子区"海相下组合"油气勘探的有利区。Abstract: Based on the analysis of the tectonic setting,source-reservoir-caprock development,evolution and preservation as well as some typical examples of the Lower Marine Assemblage,it is considered that the source rock in the Lower Marine Formation Assemblage in the Meso-Cenozoic superposted area in the north of Lower Yangtze basin is characterized by long-term and multiperiodic hydrocarbon-generating.Moreover,the Silurian Gaojiabian Formation being composed of thick marine mud shale is a good caprock.Further research shows that the Lower Yangtze area is a fossil plate spliced to the Eurasia in Indo-Chinese epoch.The main body of the fossil plate is a relatively steady zone called Lower Yangtze central steady zone.This central steady zone is situated in Yancheng to South Yellow Sea region.It is a potential exploration area in the Lower Marine Formation Assemblage in Lower Yangtze region.
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[1] 丁幼文,朱慧娟,恽舲玲等.下扬子盆地的地壳深部构造与盆地演化的研究[J].石油实验地质,1985,7(1):70~78. [2] 丁道桂,李萍,吕俊祥.下扬子地区晚古生代含油气盆地原型[J].石油实验地质,1987,9(3):272~282. [3] 陈焕疆,邱之俊.中扬子区与上、下扬子区油气地质条件的对比分析[J].石油实验地质,1988,10(4):305~314. [4] 周浩达.下扬子区早寒武世"石煤"沉积特征与成因机理探讨[J].石油实验地质,1990,12(1):36~43. [5] 郭彤楼.下扬子地区中古生界叠加改造特征与多源多期成藏[J].石油实验地质,2004,26(4):319~323. [6] 姜永基.下扬子苏南地区重磁场特征与上地壳层带构造的初步研究[J].石油实验地质,1992,14(2):159~169. [7] 施泽进,黄钟瑾,陈伟.下扬子区同生断裂的形成和演化模拟[J].石油实验地质,1993,15(1):20~28. [8] 杨琦,陈红宇.苏北南黄海盆地构造演化[J].石油实验地质,2003,25(增刊):562~565. [9] 姚永坚,夏斌,冯志强等.南黄海古生代以来构造演化[J].石油实验地质,2005,27(2):124~128 -
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