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塔里木盆地塔中Ⅰ号断裂带奥陶系灰岩储层发育不规则的、复杂的裂缝系统，并以发育高角度的张剪性微—小缝为特征，非构造成因缝包括溶蚀缝和成岩缝，构造缝可分为方解石充填的高角度大—中缝、“Ｘ”型剪切缝和水平缝。根据裂缝的充填特征与切割关系可划分为具有不同特征的四期成因裂缝，结合测井新技术分析发现有效缝的走向多与塔中Ⅰ号断裂带近于垂直，而被方解石充填的无效缝多与之呈低角度相交。综合分析表明裂缝的有效性受控于现代区域应力场以及长期继承性的古构造应力格局等，而裂缝的发育程度与局部构造曲率的关系不明显，沿塔中Ⅰ号断裂带奥陶系碳酸盐岩寻找裂缝型油气藏是一重要勘探领域。
The Ordovician limestone reservoir in Tazhong Ⅰ fault zone of Tarim Basin is characterized by an irregular and complicated fracture system and is characterized by the development of high-angle shear-thinning micro-small fractures. The non-structural genetic fractures include dissolution fractures and diagenesis Seams, structural joints can be divided into calcite filling high-angle large - in the seam, “X” -type shear and horizontal seam. According to the fracture filling characteristics and cutting relationship can be divided into four characteristics with different characteristics of the fracture, combined with logging analysis of new technology found that the effective fractures and Tazhong fault zone near vertical, and calcite filled invalid joints More with the low angle of intersection. The comprehensive analysis shows that the effectiveness of fractures is controlled by the stress field in the modern region and the palaeotectonic stress pattern of long-term succession. However, the relationship between the degree of fracture development and the local structural curvature is not obvious. Acid rock search for fractured reservoirs is an important exploration area.