曲堤-王判镇地区中、古生界储层特征及控制因素研究

以岩心观察、薄片观察、试验数据为基础,对曲堤—王判镇地区中、古生界的储层特征及控制因素进行了系统研究。该区中、古生界的储层类型分为碎屑岩和碳酸盐岩两大类,碎屑岩储层物性属于中等—较差,碳酸盐岩储层属于中等—较好。碎屑岩储层储集空间主要有原生孔隙、次生孔隙、微孔隙、裂隙四种成因类型;碳酸盐岩储层储集空间主要有原生孔隙、次生孔隙、裂缝三大类。研究认为碎屑岩储层发育的控制因素主要为岩性、沉积微相及成岩作用,而碳酸盐岩储层发育的控制因素主要有沉积环境及岩石相、成岩作用、古岩溶作用、裂缝的发育程度等。

Study on characteristic and controlling factor of Mesozoic and Paleozoic reservoirs in Qudi and Wangpanzhen region

The characteristic and controlling factor of Mesozoic and Paleozoic reservoirs in Qudi-Wangpanzhen were analyzed based on core and flake observation and test data. There were clastic rocks and carbonate two types of Mesozoic and Paleozoic reservoirs in this region. The physical property of the clastic reservoir was from middle to inferior and that of the carbonate reservoir was from middle to superior. The reservoir pore space of the clastic reservoir mainly includes four origin types of primary pores, secondary pores, micropores and cracks; and that of the carbonate reservoir is primary pores, secondary pores and cracks. The controlling factors ofthe clastic reservoir were lithology, depositional micro-facies and diagenesis mainly and that of the carbonate reservoir were depositional environment,rock facies,diagenesis , paleo-karstification and growth degree of the crack.