When the resulting water and alkaline chemical are mixed with the heavy crude oil in {HEAD ~ the presence} of {TAIL ~ ultrasonic stimulation}, a semi stable to stable emulsion is rapidly formed which has a dramatically lower viscosity than the untreated viscous oil 
When the resulting water and alkaline chemical are mixed with the heavy crude oil in { HEAD ~ the presence } of { TAIL ~ ultrasonic stimulation } , a semi stable to stable emulsion is rapidly formed which has a dramatically lower viscosity than the untreated viscous oil
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