SYNERGISTIC EFFECT OF POLYMER-POLYMER MIXTURES AS DRAG REDUCING AGENTS ON OIL-WATER FLOWS

Authors : Lawrence Chukwuka EDOMWONYI-OTU, Muhammad Muhammad GİMBA, Yusuf NURUDEEN, Abdulkareem ABUBAKAR

Pages : 114-127

Doi:10.18038/estubtda.712003

View : 7 | Download : 5

Publication Date : 2020-03-31

Article Type : Research Paper

Abstract :The synergistic effect of natural and synthetic polymers as drag reducing agents in water phase during horizontal oil-water flows was studied in 12 mm internal diameter insert ignore into journalissuearticles values(ID); unplasticised polyvinylchloride insert ignore into journalissuearticles values(uPVC); pipe. Partially hydrolyzed polyacrylamide insert ignore into journalissuearticles values(HPAM; trade name as magnafloc 1011 or Separan);, polyethylene oxide insert ignore into journalissuearticles values(PEO; trade name as Polyox WSR 310);, Aloe Vera mucilage insert ignore into journalissuearticles values(AVM; as Aloe barbadensis miller);, mixture of partially hydrolyzed polyacrylamide and Aloe Vera mucilage and polyethylene oxide and Aloe Vera mucilage insert ignore into journalissuearticles values(HPAM-AVM and PEO-AVM); were used. Mixture Reynolds number of 62923, master solution of 2000 ppm and 20000 ppm, and total concentration insert ignore into journalissuearticles values(TC); of 30 ppm and 400 ppm were investigated using diesel oil insert ignore into journalissuearticles values(ρ = 832 kg/m3, µ = 1.66 cP); and water insert ignore into journalissuearticles values(ρ = 1000 kg/m3, µ = 0.89 cP); as test fluids. The results show that the drag reduction insert ignore into journalissuearticles values(DR); of 65.39 and 69.23%, and 69.23 and 70.77% were obtained for HPAM-AVM and PEO-AVM mixtures respectively, at mixing ratios of 3:1 and 1:19, for 25% oil input fraction and water phase Reynolds number insert ignore into journalissuearticles values(Rew); of 47192. These values were found to be higher than the DR obtained by individual polymer alone at the same conditions. Drag reduction decreased with increase in the oil input fraction due to the decrease in the water phase Reynolds number. The result implies drag reduction efficiency can be enhanced by combining natural and synthetic polymers.
Keywords : Drag reduction, Synergism, Polymers, Polymer polymer mixture, Oil water flow