Saskatchewan和Alberta有许多活动的稠油油藏 ,因为一些原因包括地层厚度小于 10m的油藏是不适宜应用热力开采的 ,如注蒸汽。采用非热力方法也能达到从这些油藏中开采石油的目的 ,其中化学驱油方法有考虑的必要性。本文论述的就是最近用化学驱油技术试验的结果。同时 ,也考虑到了这类方法的局限性、在稠油层有限的现场经验以及可能进行的改进。在化学驱油方法中碱驱和表面活性剂驱油技术更为重要 ,一方面原因是因为化学药剂便宜 ,另一方面也能从实验室和油田现场以往的实践中获得许多经验。实验室的研究讨论包括 :注表面活性剂和两次Lloydminster重油注蒸汽吞时试验。注表面活性剂的采收率可高达 33%。也讨论了提高采收率的其它方法 ,如使用两种表面活性剂的周期增产法 ,获得的采收率可高达 12 % ,虽然采收率较低 ,但在特殊情况下 ,这样的采收率能接近它的成本效益 There are many active heavy oil reservoirs in Saskatchewan and Alberta because, for some reason, reservoirs with a formation thickness of less than 10 m are not suitable for thermal mining, such as steam injection. The purpose of extracting oil from these reservoirs can also be achieved by using non-thermal methods, of which the chemical flooding method has the necessity of consideration. This article discusses the results of a recent chemical flooding test. At the same time, the limitations of such methods, the limited field experience at the heavy oil reservoir and the possible improvements are also taken into account. Alkaline flooding and surfactant flooding are even more important in chemical flooding because, on the one hand, chemicals are cheaper and on the other hand, much experience is gained from past practices in the field of laboratories and fields. Laboratory research discussions include: Surfactant injection and two Lloydminster heavy oil steam-swallowing experiments. Note Surfactant recovery up to 33%. Other methods of increasing oil recovery are also discussed, such as the cyclic stimulation method using two surfactants, which achieves an uptake of up to 12%. Although the oil recovery is low, in exceptional cases such recovery Rate can approach its cost effectiveness