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资阳地区震旦系气藏位于四川盆地西南部，储层以白云岩为主．基岩具低孔、低渗特征，次生发育的孔洞、裂缝构成了有效储层的基础。裂缝类型有构造张性缝、早期剪切维、晚期剪切缝、层间剪切缝、构造溶蚀缝（洞）和非构造缝等，具多种成因类型。根据裂缝中的充填物特征、充填如期次和成分的不同，可以判定裂缝具多期次的特点，裂缝的走向有ＮＥ－ＳＷ向和ＮＷ－ＳＥ向，其主要的方向为ＮＥ－ＳＷ向。根据岩心观察和测井解释，表明裂缝在纵向上主要发育于震旦系灯二段上部和灯三段，裂缝发育的主要岩性为粒屑云岩、叠层云告、晶粒云岩等。根据构造的数理统计分析，表明裂缝主要分布于小断层及伴生鼻状褶皱附近，受正向构造曲率值大小的控制。同时，由于资阳地区区域构造背景为单斜层，构造倾角仅２°～３°，因此现代区域应力场对裂缝也具重要的控制作用。
The Sinian gas reservoirs in Ziyang are located in the southwestern Sichuan Basin with dolomite-based reservoirs. The bedrocks have the features of low porosity and low permeability, secondary pores and cracks form the basis of effective reservoir. The types of fractures include tectonic tension seam, early shear dimension, late shear seam, interlaminar shear seam, structural dissolution seam (cavern) and non-structural seam. According to the characteristics of filling in the fracture, the different characteristics of the filling, such as period and composition, can be used to determine the fracture with multi-period characteristics. The fracture direction is NE-SW direction and NW-SE direction, and the main direction is NE-SW direction. According to the core observation and log interpretation, it is shown that the fractures mainly develop in the upper part of the second part of the Sinian lamp and the third part of the lamp in the longitudinal direction. The main lithology of fracture development is grained dolomite, laminated cloud and crystalline dolomite . According to the statistical analysis of the structure, it is shown that the fractures are mainly distributed in the vicinity of small faults and associated nasal folds and are controlled by the value of the curvature of the forward structure. In the meantime, since the tectonic setting of the Ziyang area is monoclinic and the tectonic dip is only 2 ° ~ 3 °, the stress field in the modern region also plays an important role in controlling the fractures.