摘要
后续水驱阶段是聚合物驱的一个重要阶段,加强剩余油分布的研究,找准潜力所在,以便制定相应调整对策,控制含水上升速度,发挥后续水驱阶段聚合物的增油作用。通过分析该区块的地质及开发特点,发现聚合物驱后剩余油分布在断层遮挡区域、前缘席状砂相、井网不完善区域、中低渗透层段。提出了对高渗透层进行深度调剖、对窜流层进行封堵、及时进行细分注水和合理调整注采比、在剩余油富集区布新井和过路井补孔等针对性的挖潜措施,现场实施效果良好。
The further water drive after polymer flooding is an important period of polymer flooding. Through the analysis of residual oil distribution, the potential can be discovered,and the relevant measures were taken to prevent water from going up rapidly and enhance the effect of polymer flooding in this period.Detailed study of geological and production character indicated that the residual oil distributed in the area of the faulting shelter,the front edge of sand sheet sedimentary facies and the medium and low penetrative layers.Corresponding adjustment measures such as modifying profiles, block off, subdivision water injection, adjustment of injection-production ratio,sactisfactory results were obtained at the working site after the corresponding adjustment measures were put into practice.
出处
《矿物岩石》
CAS
CSCD
北大核心
2003年第4期101-104,共4页
Mineralogy and Petrology
关键词
聚合物
后续水驱
剩余油
挖潜
polymer
further water flood
residual oil
tap the latent power
