石油实验地质Issue(4)：389-394,6.DOI:10.11781/sysydz201304389
下扬子黄桥地区龙潭组储层流体包裹体特征及油气成藏期研究
Fluid inclusion features and hydrocarbon accumulation stages of Permian Longtan Formation, Huangqiao area, Lower Yangtze Basin
摘要
Abstract
Transmitted light and fluorescence microscopy observations of fluid inclusions indicate that fluid in-clusions are widespread in the Permian Longtan Formation in Huangqiao area of the Lower Yangtze Basin, mainly aqueous and oil inclusions. They usually distribute in small sizes in quartz cracks and quartz secondary enlarge-ment edges. Oil inclusions show yellow-green and blue-white fluorescents respectively with blueray and ultravio-let excitations, thus indicating that the oil in the Longtan Formation in the study area is primarily in middle ma-ture stage. Through the microscopic temperature measurement of inclusions, combined with the burial history-thermal history, tectonic evolution and diagenetic evolution model researches, it has been concluded that the homogenization temperature of inclusions has 3 intervals, 89-93, 115. 4-126. 3 and 135-147. 6 ℃. Hydrocar-bons in the Longtan Formation in Huangqiao area have experienced 3 major filling periods: the first period for 73-70 Ma (the Late Cretaceous), the second period for 58-52 Ma (the Early Paleogene), the third period for 45-38 Ma (the Middle Paleogene). The second and third stages are most important.关键词
流体包裹体/构造演化/成岩作用/油气成藏期/龙潭组/黄桥地区/下扬子区Key words
fluid inclusions/tectonic evolution/diagenesis/petroleum accumulation stage/Longtan Formation/Lower Yangtze Basin分类
能源科技引用本文复制引用
陈顺勇,俞昊,林春明,张妮,张霞,倪培,丁俊英..下扬子黄桥地区龙潭组储层流体包裹体特征及油气成藏期研究[J].石油实验地质,2013,(4):389-394,6.基金项目
国家自然科学基金项目(41272124)和南京大学“内生金属矿床成矿机制研究国家重点实验室”自主研究基金项目(2009-Ⅱ-11)资助。 （41272124）
