The laboratory experiment presents that chemical agent injection with steam is the effective means for improving recovery factor of heavy oil reservoir.
室内实验表明，伴蒸汽注入化学剂是提高稠油油藏采收率的有效手段。
Surfactant is a kind of chemical agent which can enhance oil recovery greatly and has wide fitness for purpose and development potential.
表面活性剂是提高采收率幅度较大、适用较广、具有发展潜力的一种化学驱油剂。
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