根据野外露头、岩心观察及岩石薄片显微镜下鉴定,结合钻井资料和地震资料分析,认为车排子地区火山岩储层发育各种不同成因机制的裂缝,这些裂缝的存在极大的改善了研究区火山岩储层的储集物性,对研究区油气富集成藏具有重要的决定意义。通过对研究区这些裂缝的发育特征的研究我们认为研究区裂缝的形成机理是岩石性质和岩石组合、构造应力作用、早期和后期成岩作用的共同作用引起的,其中后期构造作用的影响尤为明显。 According to the field outcrops, core observation and identification under the rock slice microscope, combined with the drilling data and seismic data analysis, it is considered that the volcanic reservoirs in the Chepaizi area develop fractures with different genetic mechanisms. The presence of these fractures greatly improves the volcanic rocks The reservoir properties of reservoirs have important decisive significance for hydrocarbon accumulation in the study area. Through the study of the developmental characteristics of these fractures in the study area, we think that the formation mechanism of the cracks in the study area is caused by the combination of rock properties and rock assemblage, tectonic stress and early and late diagenesis, especially the later tectonism.