A new method, chemical huff puff, for viscous crude oil recovery has been worked out and put into field tests in several oil wells in Liaohe.

• 按照蒸汽吞吐的模式将多种化学剂组成的吞吐液注入油层，使其与原油发生乳化，降低油水的流度比，改变地层的润湿性和毛管力，以提高稠油产量和采收率。