Design and application of new impeller-type wax-proof device based on speed-increasing wax-proof mechanism

Wax deposition in oil wells seriously affects hydrocarbon production and causes inevitable economic losses. Especially rodless pumping wells, due to the lack of stirring effect sucker rod, waxing tubing is more serious. According correlation law between flow velocity wax deposition, a speed-increasing impeller prevention device was designed. Based on fluid dynamics, influence geometry equipment process parameters studied, optimization design proposed. After that, CFD simulations were used determine structure wax-proof device. The diameters hub rim are 34 mm 60 mm, respectively; axial length 42 mm; number blades five; rotation speed 600 r/min. inlet outlet angle blade designed based increasing ability impeller's speed. head as basis for determining distance paraffin preventer. Starting from position prone place multiple impellers series wellbore. Comparing with traditional methods, our experiments showed that this has good function improves benefit high waxy wells. This paper provides new choice