The viscosity of crude oil from viscous oil reservoir is high and heavy hydrocarbon components constitute the majority. So, it is difficult to produce oil from production Wells.
由于稠油段油层原油的粘度高，重烃组分所占比例大，因此造成采出井采出困难。
The viscosity of crude oil from viscous oil reservoir is high and heavy hydrocarbon components constitute the majority. So, it is difficult to produce oil from production Wells.
由于稠油段油层原油的粘度高，重烃组分所占比例大，因此造成采出井采出困难。
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