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分析了川西坳陷上三叠统油气富集、成藏的主控因素 .通过对烃源岩分布与演化、古构造、古隆起的分析以及对裂缝和保存条件等因素的系统研究 ,划分出了有利勘探区带 .结果表明 ,上述因素对上三叠统成藏具有控制作用 ;灌口—平落坝、大兴鼻状隆起、孝泉—丰谷、中坝—鸭子河、老关庙—九龙山构造带为构造圈闭领域有利勘探区带 ;川西—川中过渡带内须二段地层尖灭带为岩性圈闭领域有利勘探区带
The main controlling factors of oil and gas enrichment and accumulation in the Upper Triassic of West Sichuan Depression are analyzed.Through the systematic study on the distribution and evolution of source rocks, palaeotectonics, paleo-uplift and the factors such as cracks and preservation conditions, The results show that the above factors have a controlling role on the accumulation of the Upper Triassic. Guankou-Pingluoba, Daxing noselift, Xiaoquan-Fenggu, Zhongba-Duzihe, Laoguanmiao- The Jiulongshan tectonic belt is a favorable prospecting zone in the structural traps; the sharply extinct zone in the second member of the Xuerisi section in the western Sichuan-Sichuan transitional belt is a favorable exploration zone in the lithologic trap area