辽河油田稠油油藏大多利用蒸汽吞吐开采,只有个别原油粘度界于Ⅰ类和Ⅱ类之间的稠油油藏,在经历短暂的常规干抽后转入水驱开发。一些经历了蒸汽吞吐开采后的稠油油藏,也尝试着用水驱方法开采剩余油,以图提高最终采收率。但由于蒸汽吞吐开采 Most heavy oil reservoirs in Liaohe Oilfield are exploited by steam huff and puff, and only a few heavy oil reservoirs with different crude oil viscosity between Class I and II are diverted to waterflood development after a short period of routine dry pumping. Some heavy oil reservoirs that have experienced steam huff and puff have also attempted to exploit water flooding to recover remaining oil in an attempt to increase their ultimate recovery. However, due to steam huff and puff