State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology

摘要

There are problems such as poor regeneration and low filtration efficiency for Deep bed filter in oilfield, this study will load the swirl field into media hydraulic backwashing process, a new method of the axial dynamic backwashing media regeneration is put forward. The axial dynamic backwashing process based on the complex field is studied, to take oil contaminants as a research object in the main working zone, and the mathematical model is established. The parameters of the model are solved, and the control equations of the axial dynamic backwashing are established. The theoretical backwash time is determined, which is 9-12 min. The comparison of theoretical and experimental results shows that the theoretical model of axial dynamic backwashing is correct and the theoretical backwash time is reasonable.