摘要
由于碳酸盐岩储集层岩性复杂、孔隙类型多、非均质性强等原因 ,用常规测井资料进行评价存在许多困难 ,而核磁共振测井资料则为解决该类问题提供了另一种有利的手段。利用核磁共振测井横向弛豫时间 T2 分布谱可直接反映岩石孔隙半径大小的特性对板桥潜山碳酸盐岩储层类型进行了划分 ,其结果在 FMI成像图上表现出很好的一致性。另一方面 ,利用核磁共振测井的移谱法、差谱法、T2 标准谱 ,结合电阻率测井进行了储层流体性质识别 ,并划分出板桥潜山碳酸盐岩储层有效性级别。
Due to complex lithology, various pore types and serious heterogeneity of carbonate reservoir, it is difficult to use conventional logging data to evaluate the reservoir. But NMR logging provides a means for solving this kind of problem. Using NMR characteristic that transverse relaxation T_2 distribution can directly reflect the sizes of rock pores, Banqiao carbonate buried hill reservoirs are classified into different types, which show good consistency with FMI images. On the other hand, Banqiao reservoir effectiveness classification and its fluid type identification are made by T_2 spectrum shift, T_2 spectrum difference, T_2 distribution and conventional resistivity log.
出处
《测井技术》
CAS
CSCD
北大核心
2000年第5期345-350,386,共7页
Well Logging Technology
关键词
核磁共振测井
孔隙类型
碳酸盐岩
T2谱
储集层
NMR logging [relaxation time] pore type fluid property carbonate reservoir evaluation
