“双高”期高渗砂岩油藏化学驱部署研究

Study on chemical flooding deployment for high permeability sandstone reservoirs

针对锦16块储层非均质性较强,剩余油分布零散的特点,为保证其化学驱油效果,实现优化部署,重点开展了以流动单元研究为基础的精细地质特征研究,同时采用了岩心分析、测井、数值模拟、动态分析、油藏工程概算、微观驱替等方法,全面、细致地描述了试验区剩余油分布的规律及特点。在细致总结、吸取锦16块近30a注水开发取得的认识的基础上,运用数值模拟、类比等方法进行了优化部署研究,形成了一系列化学驱部署研究的相关技术,对辽河油区高含水期砂岩油藏化学驱研究发展有着重要的意义。

Block Jin 16 is a highly heterogeneous reservoir with sporadic distribution of residual oil.Meticulous study on geological characteristics has been carried out based on flow unit.The characteristics of residual oil distribution are described using core analysis,logging,numerical simulation,performance analysis,reservoir engineering and microscopic displacement to optimize chemical flooding effect.Based on thorough understanding of almost 30 years' water flooding in Block Jin 16,optimized deployment of chemical flooding is given by using numerical simulation and analogy method.This is of significant importance to chemical flooding in high water cut stage in sandstone reservoirs of Liaohe oil province.