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针对塔河油田奥陶系稠油油藏特征,解决原油进入井筒后,由于井筒热损失造成原油粘度增大流动困难问题,在室内开展了塔河油田稠油井筒降粘实验,研制出适合塔河油田使用的稠油降粘剂,通过现场5井次的井筒降粘试验,都取得了较好效果。
Aiming at the characteristics of Ordovician heavy oil reservoirs in Tahe Oilfield and solving the problem that the viscosity of crude oil increases when the crude oil enters the wellbore due to the heat loss of the wellbore, the viscosity-reducing experiment of heavy oil wellbores in Tahe Oilfield is carried out indoors, The heavy oil viscosity reducer used in Hetian Oilfield has achieved good results through the wellbore viscosity reduction test of 5 wells in the field.