现代地质Issue(6)：1414-1424,11.
秘鲁三个前陆盆地油气地质条件对比研究
Comparison of Petroleum Geology and Exploration Potential of Three Foreland Basins in Peru
摘要
Abstract
Maranon,Ucayali and Madre de Dios basins are Sub-Andean foreland basins.The key results of study show that:(1)The tectonic events at the end of Tertiary formed the basement-involved thrusts and reverse structures in Ucayali basin,while the effects on Maranon basin are less intensive.(2)During the Triassic peri-od,most Paleozoic formations in Maranon and Ucayali basins are uplifted and eroded,while in Madre de Dios basin,Paleozoic formations are unaffected and relatively well preserved.(3)Generally,the main source rocks and reservoirs for the three basins become older from north to south.And the reservoir quality of foredeep region are relatively poor due to deep burying and diagenesis.(4)Anticlinal and faulted-anticlinal traps are formed in the western and middle parts of the foreland basins because of compressive tectonic events,while stratigraphic traps developed in the east of the basin.Basement-involved thrusts predominated in the Maranon basin and the northern part of Ucayali basin,which were caused by the Tertiary compression and uplift,while thin-skinned thrusting are characterized in the southern part of Ucayali basin.Finally,the exploration targets are pointed out with the comparison results of the three basins.Three exploration targets exist in Maranon basin,including thrustfold-foredeep belt,carbonate reservoir in Pucara Formation as well as Cretaceous reservoir without the background of hydrocarbon accumulation in Paleozoic,and reservoir below Chonta Formation.Four types of ex-ploration leads exist in Ucayali basin:traps in thrustfold-foredeep belt,Carbonate reservoir in Pucara Forma-tion,as well as gas prospects of Permian formation in North Ucayali sub-basin,and Cretaceous stratigraphic traps in the eastern part of the basin.And structures with inherited Paleozoic uplift in the foreland slope are main exploration targets in Madre de Dios basin.关键词
勘探潜力/油气地质/前陆盆地/秘鲁Key words
exploration potential/petroleum geology/foreland basin/Peru分类
能源科技引用本文复制引用
王青,赵旭,刘亚茜..秘鲁三个前陆盆地油气地质条件对比研究[J].现代地质,2013,(6):1414-1424,11.基金项目
国家科技重大专项“全球剩余油气资源研究及油气资产快速评价技术”（2011ZX05028）。 （）
