摘要
鄂尔多斯盆地A地区马五X段碳酸盐岩储层发育裂缝、孔隙双重储集空间,储层致密、非均质性极强,测井评价的关键是对储层进行精细分类划分有效储层,常规储层分类方法难以准确区分不同类型储层之间的差异。通过岩石物理实验数据结合试气资料建立储层分类标准,采用Fisher判别法形成常规测井碳酸盐岩储层分类表征方法。同时,通过电成像孔隙度谱和偶极声波测井斯通利波衰减系数等信息,形成致密碳酸盐岩测井储层分类综合评价方法。应用结果表明,该方法能够很好地进行致密碳酸盐岩储层分类,储层分类结果与试气结果吻合较好,具有推广应用价值。
The carbonate reservoirs in Area A Ma5X layer of Ordos basin have dual reservoir space of fractures and pores,and the reservoir are tight and highly heterogeneous.The key of log evaluation is to classify the effective reservoir.Conventional reservoir classification methods are difficult to accurately distinguish the differences between different types of reservoirs.In this study,the reservoir classification standard is established based on the experimental data of petrophysics and gas testing data.Fisher discriminant method is used to form the conventional logging carbonate reservoir classification and characterization method.At the same time with the information of the micro-electro imaging logging’s porosity spectrum and the attenuation coefficient of dipolar acoustic logging’s stoneley waves,a comprehensive evaluation method of tight carbonate logging reservoir classification is formed.The application results show that this method can be used to classify the tight carbonate reservoir,and the reservoir classification result are in good agreement with the gas test result,which has application value.
作者
吴有彬
林伟川
张小刚
牟瑜
涂慧智
周丽艳
WU Youbin;LIN Weichuan;ZHANG Xiaogang;MU Yu;TU Huizhi;ZHOU Liyan(Applied Research Institute,China Petroleum Logging CO.LTD.,Xi’an,Shaanxi 710077,China;Engineering Technology Management Department,PetroChina Changqing Oilfield Company,Xi’an,Shaanxi 710018,China;Changqing Branch,China Petroleum Logging CO.LTD.,Xi’an,Shaanxi 710200,China)
出处
《测井技术》
CAS
2020年第5期472-476,共5页
Well Logging Technology
关键词
测井解释
碳酸盐岩
储层分类
电成像测井
偶极声波测井
鄂尔多斯盆地
log interpretation
carbonate rock
reservoir classification
micro-electro imaging logging
dipolar acoustic logging
Ordos basin
