estuscience - se

Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering

2667-4211

Eskisehir Technical University

10.18038/estubtda.712003

Engineering

Mühendislik

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

https://orcid.org/0000-0001-8317-0096

Edomwonyı-otu

Lawrence Chukwuka

Delta State University

https://orcid.org/0000-0002-9102-0618

Gimba

Muhammad Muhammad

Ahmadu Bello University

https://orcid.org/0000-0001-6933-7064

Nurudeen

Yusuf

Bayero University

https://orcid.org/0000-0002-8537-8488

Abubakar

Abdulkareem

Ahmadu Bello University

03 31 2020

21 1 114 127 10 02 2018

2000

Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering

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 (ID) unplasticised polyvinylchloride (uPVC) pipe. Partially hydrolyzed polyacrylamide (HPAM; trade name as magnafloc 1011 or Separan), polyethylene oxide (PEO; trade name as Polyox WSR 310), Aloe Vera mucilage (AVM; as Aloe barbadensis miller), mixture of partially hydrolyzed polyacrylamide and Aloe Vera mucilage and polyethylene oxide and Aloe Vera mucilage (HPAM-AVM and PEO-AVM) were used. Mixture Reynolds number of 62923, master solution of 2000 ppm and 20000 ppm, and total concentration (TC) of 30 ppm and 400 ppm were investigated using diesel oil (ρ = 832 kg/m3, µ = 1.66 cP) and water (ρ = 1000 kg/m3, µ = 0.89 cP) as test fluids. The results show that the drag reduction (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 (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.

Drag reduction Synergism Polymers Polymer-polymer mixture Oil-water flow

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