摘要
Liaohe Oilfield is rich in heavy oil and is the largest base of heavy oil recovery in China. Its heavy oil reservoirs have following characteristics：
Characteristics of heavy oil reservoirs in Liaohe Oilfield Liaohe Oilfield is rich in heavy oil and is the largest base of heavy oil recovery in China. Its heavy oil reservoirs have following characteristics: (1) Oil viscosity varies a lot. Among proved reserves, 69.4% is conventional heavy oil with viscosity between 50--10,000mPa.
