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本文用裂缝充填物、碳氧同位素、声发射、包体均一温度测定等方法确定川西拗陷上三叠统断层形成期次，研究其与油气演化的匹配关系；用钻井、流体性质、地层压力、断层面剖面图、断裂带地面调查等多种方法和资料，综合研究该区内断层的纵向、横向及有效封闭性。并进行区域评价，指出了封闭条件差、中等、好、极好的地区，为提高勘探效益提供了直接铱据
In this paper, fault faulting, carbon and oxygen isotopes, acoustic emission and homogenization temperature of inclusions were used to determine the fault formation period of Upper Triassic fault in western Sichuan depression and to study its matching relationship with the evolution of oil and gas. Using drilling, fluid properties, formation pressure , Sectional view of the fault plane, ground survey of the fault zone and many other methods and data to comprehensively study the vertical, horizontal and effective sealing of faults in this area. And the regional evaluation, pointed out that the closed conditions are poor, moderate, good and excellent areas, to provide direct iridium data to improve exploration efficiency