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本文根据塔里木盆地奥陶系(结合四川盆地震旦系)古风化壳储层的资料综合分析编写而成。该类碳酸盐岩储层储集空间类型多,形成期次多,空隙类型以溶蚀孔洞、孔隙及裂缝为主。古岩溶形成的溶蚀孔洞,经历多期岩溶作用,是油气主要储集场所,孔隙主要是粒内溶孔。该类储层受沉积相、成岩作用及古水文控制,呈层状或透镜状分布;裂缝主要形成于晚海西—印支期,而燕山～喜山期的重新张开缝才是主要的有效缝,由裂缝及其所连通的孔洞形成的缝、洞、孔储渗体则构成储层的有效部分。
Based on a comprehensive analysis of the data from the Ordovician (together with the Sinian in the Sichuan Basin) paleocratical crust reservoir in the Tarim Basin, These carbonate reservoirs have many types of reservoir space and many formations, and the types of vugs are dissolution pores, pores and cracks. The karst pores formed by paleokarst karstification experienced multi-stage karstification, which is the main oil and gas reservoir and the pores are mainly intragranular dissolved pores. The reservoirs are controlled by sedimentary facies, diagenesis and paleo-hydrology and distributed in a layered or lenticular form. The fractures are mainly formed in the Late Hercynian-Indosinian period, while the reclaimed seams in the Yanshan-Himalayan period are the major ones Effective seams, fractures and holes connected to them by the formation of cracks, holes, pore reservoir formation of the effective part of the reservoir.