Research on Reservoir Damage Mechanism in Hailaer Oilfield

Due to the complicate geological conditions of Hailaer oilfield,it increases the difficulty of reservoir protection,and also seriously hampers the process of exploration and development.In order to meet the fast-paced exploration of Hailaer oilfield,according to the geology characteristics of Haita exploratory area,damage mechanism and drilling fluid protection system of reservoir have been made studied.Furthermore,the treating chemical for preventing water sensitive damage and water block damage have been optimized,and the optimized drilling fluid is with good application in the field.