补充井在窄小河道油田剩余油挖潜中的应用

常规注水调整适用于注采关系相对完善的井组及区块,对于窄小河道发育的区块,由于砂体连续性差,注水调整很难满足开发需要。多学科油藏研究技术在油田开发调整中的广泛应用,实现了对剩余油的定性描述和量化分析,搞清了剩余油分布规模及分布特点。井震结合技术可以准确判断地下断层的发育情况,通过连井的地震剖面,能够预测新井钻遇断层情况,指导井位移动。通过多学科油藏研究和井震结合技术联合应用,准确找准窄小河道补充井井位,有效挖掘窄小河道砂体的剩余油,达到提高水驱开发效果的目的。

Application of Supplement Wells in Further Development of Residual Oil for Narrow Channels

Regular water injection is applicable in well groups and blocks where injection-production relation is relatively well developed.However,for blocks that located in narrow channels with low continuity of sand bodies,such water injection plan usually cannot satisfy the requirements for production.Multi-disciplinary reservoir developing techniques are widely used in adjusting production plans,which qualitatively and quantitively describe residue oil,and better reveal their distributions and characteristics.The combination of well-logging and seismic technology could locate fault precisely.Furthermore,the analysis of seismic profile that goes through wells will assist in evaluating the position of fault relative to newly-drilled wells,thus to guide the selection of well location.The combination of multi-discipline reservoir research,well-logging,and seismic technology would help to locate narrow channels more precisely for supplement well position and produceresi due oil more effectively,thus to reach a higher recovery efficiency with water-injection.