文留油田文25东块注水开发后期储层孔隙结构特征评价

Pore Structure Feature Evaluation of Reservoir for East Block 25 in Wenliu Oilfield During Later Stage of Water-injection Recovery

通过常规物性、铸体图像、压汞等试验分析方法,对文25东块密闭取心井———文检3井岩心进行分析,研究长期注水开发后储层岩石学、岩石物性、孔隙空间结构、微观孔隙结构特征。据此揭示注水开发对孔隙结构的影响,为油田综合治理提供地质依据。

According to the methods of normal physical properties,cast image and high pressured mercury,this paper analyzed the samples cored from Well Wenjian-3 in East Block 25,and studied the reservoir petrology,rock physical properties,pore space structure and micro-pore structure after long period of water-injection recovery,thus to find the water-injection effect on pore structure,and to provide geological base for synthetical control of the oil field.