聚合物和二元驱对稠油驱油效果影响的实验研究

摘要

The block 618 in Liaohe oilfield is a conventional heavy oil block. In view of the problem of fast pressure dropping and high crude oil viscosity in this block, the core experiment was carried out to study the effect of polymer flooding and binary flooding on heavy oil displacement. The results show that the degree of recovery of binary chemical flooding is higher than that of polymer flooding, and the lowest value of water content decreases during binary flooding. The average injection pressure of binary flooding is lower than that of polymer flooding.%辽河油田龙618区块是一个常规稠油区块,针对该区块地层压力下降快,原油粘度高等问题,进行室内岩心实验,研究聚合物驱和二元驱对稠油驱油效果的影响.结果表明:二元化学驱采出程度高于聚合物化学驱采出程度,且在二元驱的驱油过程中含水率下降的最低值更低,二元驱低于聚合物驱在驱油过程中的平均注入压力.