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Effects of Influencing Factors on a Lab-Scale Device for Dynamic Scaling Mitigation
Tao Yu,Ying Wang,Jiayu Song,Baichun Wu,Xin Zhang,Chengtun Qu 한국전기전자재료학회 2021 Transactions on Electrical and Electronic Material Vol.22 No.6
To investigate the dynamic scaling properties of produced water from oil and gas fields, in this study, an experimental dynamic scaling mitigation device consisting of a filler cylinder, a sewage circulation device, and a heating device was designed. The effects of important factors, namely, initial concentration of scale-forming ions, contact time, temperature, and flow rate, on the dynamic scaling process were investigated using this device. The results obtained showed that the rate of scale adsorption on cotton fiber decreased gradually as the initial concentration of the scale-forming ions increased, and the scale adsorption rate peaked at 97.5% when the contact time was between 2 and 8 h. It was also observed that the maximum scale adsorption rate and amount corresponded to experimental temperatures of 50 and 40°C, respectively. Furthermore, the maximum scale adsorption rate was 94% at a flow rate of 60 L/h, while the scale adsorption amount peaked at a flow rate of 100 L/h. These results provide important guidelines for the establishment of a rapid measurement method for dynamic scaling in produced water from oil and gas fields and for the evaluation of water quality stability for water flooding extraction.