摘要
大庆油田喇嘛甸至萨中地区的葡１２油层位于松辽盆地北部大型沉积体系泛滥平原相末端，内部发育着２类性质截然不同的大型河流砂体，传统地质研究方法始终不能准确地鉴别其成因。近年来通过大面积密井网资料的精细地质研究，证实了这２类砂体分别属于泛滥平原下游的大型曲流河及砂质辫状河砂体，为正确认识储层非均质特征和改善油田开发效果提供了科学依据。
The Pul2 oil reservoir in lamadian-Middle Sartu, Daqing oilfield complex, is located in the end part of the flood plain factes in the giant Songliao sedimentary system, in which two types of large-scale fluvial sandstone bodies with absolutely different properties were happened. Unfortunately, conventional geological methods can not identify the origins of them exactly. Detailed geological studies on densely spaced well data in a large area in recent years confirmed that these two types of sandstone-body should be occurred in large-scale meandering streams and sandy braided channels in the downstream region of the flood plain factes, providing a number of evidences for the understanding of the heterogeneity in fluvial reservoirs, to improve of the recovery efficiency of the reservoir.
出处
《石油勘探与开发》
EI
CAS
CSCD
北大核心
1995年第2期68-70,共3页
Petroleum Exploration and Development
关键词
砂体
河流
古代地质
沉积
储集层
Geologic research, paleochannel, sandstone body, Identification
