摘要
针对聚合物驱后孤岛油田的地层条件和油、水性质等,使用高效洗油技术,通过试验优化了高效洗油剂配方、用量和最佳注入时机。室内物理模拟试验发现注入0.3倍孔隙体积的高效驱油剂,能提高原油采收率17%,聚合物驱后应尽可能早的注入高效驱油剂。室内物理模拟试验和矿场运用结果表明,在聚合物驱三次采油后高效洗油技术,还可以进一步提高采收率,即三次采油后再进行四次采油是有效果的,具有广阔的应用前景。
After polymer flooding on gudao oilfield, according to the properties of formation and fluid, oil recovery is improved by using the high efficiency cleaning technique. Pouring into 0. 3 pore volume oil displacement agent improved 17% crude oil recovery. Oil displacement agent should be pour into as early as possible after polymer flooding. The washing ability is proved on the core flooding experiments and application on oilfield. The high efficiency cleaning technique has a bright future.
出处
《断块油气田》
CAS
2005年第5期49-50,77,共3页
Fault-Block Oil & Gas Field
