Effects if Pipe Temperature on the Anti-Wax Property of EVA Wax Inhibitor
LI Chuanxian1 , WANG Feng 1, FAN Yuanbo2, ZHU Haoran1, SUN Guangyu1, LIU Hongye1, XIA Zheng2
1. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China;
2. Xi'an Changqing Technology Engineering Co., Xi'an 710018, China
Abstract：The effects of EVA wax inhibitor on the deposition characteristics of Changqing crude oil wax were studied by Couette wax deposition test equipment, and anti-wax effects of EVA wax inhibitor at different pipe temperatures were analyzed. It is found that the wax deposition rate of the additive crude oil is significantly lower than that of the blank crude oil, and the aging rate of the wax deposit is increased. The anti-wax efficiency of EVA wax inhibitor decreases and the aging rate of wax deposit increases with the increases of oil temperature, regardless the temperature difference of the oil wall or the wall temperature is controlled. By analyzing the influence of EVA wax inhibitor on the flow characteristics, lowtemperature gelation structure and microscopic wax morphology of Changqing crude oil, the influence mechanism of EVA wax inhibitor on the wax deposition characteristics of Changqing crude oil is clarified. From two perspectives of the initial antishear strength of wax deposits and the diffusion rate of wax molecules, the effects of pipe temperature on the anti-wax effect of EVA wax inhibitor are revealed.
李传宪，王峰，范原搏，朱浩然，杨飞，孙广宇，刘宏业，夏政. 管输温度对EVA型防蜡剂防蜡效果的影响[J]. 石油学报（石油加工）, 2020, 36(3): 525-532.
LI Chuanxian, WANG Feng, FAN Yuanbo, ZHU Haoran, SUN Guangyu, LIU Hongye, XIA Zheng. Effects if Pipe Temperature on the Anti-Wax Property of EVA Wax Inhibitor. ACTA PETROLEI SINICA (PETROLEUM PROCESSING SECTION, 2020, 36(3): 525-532.
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