So the heavy oil ofDaqing Peripheral Oilfields don not adapt to produce the asphaltum and Surfactants.However, it can makeit turn into raw materical of reducing viscidity and retarding coking.

• 因此大庆外围油田稠油并不适合生产沥青和表面活性剂，但可以做为减粘和延迟焦化的原料。