利用空心杆向井筒内掺入活性水或稀油，降低油流阻力，实现应用螺杆泵开采深层稠油。
Active water or light oil is sent downhole through hollow rod to reduce oil flow resistance, thus producing heavy oil from deep formation through screw pump.
抽余油失去了原油所具有的与碱水间良好乳化性质和低界面张力性质，说明超稠油中少量的酸性组分是其碱水乳化的主要活性组分。
Raffinate loses the emulsifying ability and low interfacial tension property, so the acidic components in heavy oil are the major active component for emulsification of basic water.
综述了稠油乳化降黏用表面活性剂的类型及其常用的非离子型表面活性剂的主要类型。
And summarized the types of surfactants used in heavy oil emulsifying and viscosity reducing and the main types of nonionic surfactants in common use.
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