萨尔图油田北二东试验区剩余油分布特征  

Distributing characteristics of residual oil in the northeast pilot area No.2 in Saertu oil field

作　　者：刘吉余[1] 王磊[1] 郭万奎[2] 吕靖[1] 时启革 

机构地区：[1]大庆石油学院地球科学学院,黑龙江大庆163318 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《大庆石油学院学报》2002年第4期1-3,共3页Journal of Daqing Petroleum Institute

基　　金：黑龙江省自然科学基金资助项目 (A0 1-13 )

摘　　要：根据密闭取心井驱油效率资料和水淹层的解释结果 ,分析了萨尔图油田北二东试验区剩余油的分布特征 .结果表明 ,小于 0 .5m的薄油层和表外储层水洗程度低或未水洗 ,是剩余油的主要富集部位 ;大型河道砂体、中小型河道砂体、稳定型席状砂体水淹程度高 ,剩余油厚度小 ,而不稳定型席状砂体水淹程度高 ,剩余油厚度大 ;剩余油在垂向上呈高度分散状态 ,在平面上分布零散 ,处于砂体的边角部位 ,或成片分布在差油层中 。The paper deals with the distributing characteristics of residual oil in the northeast pilot area No.2 in Saretu oil field with the flushing efficiency of sealed cored well and the expositive result of waterflooding layer, and the study makes it clear that the main enrichment part of the residual oil lie in the thin oil layer whose thickness is less than 0.5 meter and the useless reserves which have lower water wash degree or are unwashed. The waterflooding degree is high and the thickness of residual oil is small in the large river course sand, medium and small river course sand, steady sand sheet. But in unsteady sand sheet the waterflooding degree is high and the residual oil is thicker. In the vertical direction the residual oil take on the dispersive form; On the flat surface the distribution of residual oil is unorderly, it lies in the parts of the oil\|bearing formation, or being sheet in the bad oil\|bearing formation, these make it difficult for the infill drilling.

关 键 词：萨尔图油田 北二东试验区 剩余油分布 特征 水淹层 油藏描述 驱油效率 产水率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]