Study on the influencing factors of BEM-5P pour point depressant on the pour point depression effect of high pour point crude oil
In order to solve the problems of high energy consumption and easy plugging of high pour point crude oil during oil extraction and transportation,the pour point depression effect of BEM-5P pour point depressant on high pour point crude oil in Bayan Oilfield was studied.The effects of factors such as pour point depressant concentration,crude oil water content,dosing temperature,repeated heating,high-speed shear,and crude oil stillness on the pour point depression and viscosity reduction effect of crude oil were explored,as well as the effect of pour point depressant on crude oil dehydration effect.The result shows that BEM-5P pour point depressant has a significant pour point depression effect on Bayan crude oil.The higher the concentration of the pour point depressant,the lower the pour point and viscosity of the crude oil;the higher the water content of crude oil,the worse the pour point depression effect;when the dosing temperature is 75℃,the viscosity reduction effect is the best.When the crude oil temperature is below 55℃,the crude oil temperature has a positive impact on the viscosity reduction effect,and when it ex-ceeds 55℃,the crude oil temperature has a negative impact on the viscosity reduction effect.Repeated heating and high-speed shearing have little effect on solidification point and viscosity;the static state of 72 h of crude oil has a small impact on the pour point and a significant impact on the viscosity;the dewa-tering effect of the pour point depressant plays a negative role.Compared with thermochemistry sedimenta-tion,the effect of the pour point depressant on the electrochemical sedimentation is less.
oil extractiongathering and transportationpour point depressantBEM-5Phigh pour point crude oil
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