用生产测井资料确定油水井注采关系方法及效果评价

A Method for Determining the Relation Between Injection and Production of Injection & Oil Production Wells with Production Log Data and Its Effect Appraisal.

针对目前油田注采分析存在的困难 ,提出了用动态测井资料确定油水井注采关系的方法。利用注产剖面测井资料得出分层注水量和分层产液量 ,以此为基础结合井口生产数据 ,生成一定时间的产液、吸水量数据序列 ;根据灰色关联分析法确定油、水井连通性、注水受效时间 ;根据多元回归分析法确定注水井对周围油井不同层的水量分配。这种方法在大庆油田萨北过渡带 112口油、水井注采分析中取得了预期的效果。

Aimed at the present difficulty of analyzing the relation between injection and production in Daqing Oilfield, a method is proposed for determining the relation with production logging data and wellhead performance data. The zonal water injection rate and zonal fluid production rate can be calculated by using logging data from water injection and production profile, which is combined with the daily surface production report data to form the basis to produce a list of liquid producing and water taking data at a certain time. The connection between the water wells and oil wells and the time of oil displacement efficiency by water injection are determined by grey correlation analysis method. Distribution of water from water injection wells to different zones of the oil wells is determined by multielement regression method. The anticipated result is achieved by using this method in 112 water injection and oil production wells located in the transition zone of Lamadian Oilfield.