Numerical Simulation of Oily Sewage Settlement Experimental Device Based on CFD-PBM
Settlement is one of the important treatment methods in the treatment process in oil fields.and the oil-water separation characteristic of oily was the key factor affecting the efficiency of oily sewage settlement treatment process.An experimental device for oily sewage settlement was designed and built in this study,and the settlement and separation process of oily sewage was numerically simulated by CFD-PBM in the device.Firstly,the reliability of the simulation method was validated by experiments,and then the effects of different viscosity of oil-water phase,oil content of the preparation liquid,and temperature on the settlement process of oily sewage were analyzed,and the settlement and separation characteristics of oily sewage in the settlement device were obtained.When other conditions were constant during the static settlement process of oily sewage,the lower viscosity of oil-water phase was,the larger oil content of the preparation liquid was,the higher temperature was,the faster settlement and separation speed of oily sewage was,and the easier the oil droplets were to quickly separate from the oily sewage and float to the top,demonstrating a great oil-water separation effect.The research results could provide some theoretical support for the experimental study of oily sewage settlement and the operation of the oily sewage settlement treatment process in oilfield.
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