油相分布对驱替效率的影响

摘要

The ultimate recovery efficiency of waterflooding is usually only 30% -40% of the OOIP .And waterflooding is a primary way of development of the field for a long time and an important way to enhance the recovery of waterflooding .The in-house experiments simulat-ing the process of water displacing oil showed that the displacement efficiency varies according to the distribution of oil .%　　目前我国注水开发油藏最终采收率通常虽然只有原始地质储量的30％～40％，但在今后相当长时期内注水开发仍然将是油田开采的主要生产方式，因此提高注水开发效率的重要性不言而喻。对水在不同驱替位置的油相驱替进行了室内模拟实验，发现油相分布不同驱替效率也大不相同。