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塔里木盆地塔中地区台地边缘礁滩储集体的发育是该区油气成藏的关键,储层发育的控制因素一直以来都是该领域研究的热点问题。通过对塔中Ⅰ号断裂带地区构造作用与储层发育关系的分析,认为该区上奥陶统良里塔格组台地边缘礁滩体灰岩储层是构造因素及构造控制下多种因素共同作用的产物。大规模构造运动控制区域和局部沉积相的发育,进而明显影响到不同区段储层的岩石类型和与之相关的储集物性;除构造破裂作用可直接为储层提供储渗空间外,导致储层次生孔洞形成的各类溶蚀作用均受到构造活动的制约与影响。构造作用是该区礁滩体储层形成的基础和后期演化的必要条件,并最终影响储层的空间分布特征。从构造因素的主导作用出发,探讨储层的控制因素,有助于储层的全面评价与预测。
The development of reef bank reservoirs at the platform edge in Tazhong area of Tarim Basin is the key to hydrocarbon accumulation in this area. Controlling factors of reservoir development have always been the hot issues in this field. Based on the analysis of tectonic function and reservoir development in Tazhong Ⅰ fault zone, it is concluded that the limestone reservoirs in the reef bank of the Lianglitage Formation in the Upper Ordovician are structural factors and controlled by various factors under structural control Of the product. Large-scale tectonic movement control area and the development of local sedimentary facies, and thus obviously affect the rock types and related reservoir properties of reservoirs in different sections; apart from tectonic rupture, it can directly provide reservoirs with storage and storage space, resulting in All kinds of dissolution of secondary pores formed in reservoirs are controlled and influenced by tectonic activities. The tectonic function is the necessary condition for the formation of the reef bank reservoirs and the subsequent evolution of the reservoirs, and ultimately affects the spatial distribution of reservoirs. Based on the dominant role of structural factors, the control factors of reservoirs are discussed, which is helpful for the comprehensive evaluation and prediction of reservoirs.