依据吐哈盆地三叠系砂岩储集岩系的岩石物性、岩石薄片、X-衍射和扫描电镜等测试分析资料,研究并描述了三叠系砂岩的储层物性特征、次生孔隙类型及其与成岩作用的关系。综合分析认为:吐哈盆地三叠系储层主要为中上三叠统长石质岩屑砂岩,孔隙类型以次生孔隙为主,储层物性相对较差,总体属于中孔-低渗或低孔-低渗性储层;成岩演化过程中形成的裂隙-溶蚀型次生孔隙构成吐哈盆地三叠系相对有利的主要油气储集空间类型,且主要分布于盆地西部的托克逊凹陷。 Based on the petrophysical properties, rock flakes, X-ray diffraction and scanning electron microscopy (SEM) data of the Triassic sandstone reservoir rocks in the Turpan-Hami basin, the reservoir physical properties, secondary pore types and their correlations of the Triassic sandstone are studied and described And diagenesis. The comprehensive analysis shows that the Triassic reservoir in the Turpan-Hami basin is dominated by middle-upper Triassic feldspathic lithic sandstone, the pore type is dominated by secondary pores, and the reservoir properties are relatively poor. The reservoirs generally belong to mesopore-hypotonic or Low porosity and permeability reservoirs. The fissure-erosional secondary pores formed during the diagenetic evolution constitute the relatively favorable reservoir type of Triassic in the Turpan-Hami basin, and are mainly distributed in the Toksun Sag in the western part of the basin .