三元复合稠油化学降粘的室内研究

研究了磺化、氧化稠油化学降粘方法。根据稠油降粘剂评价标准，确定实验条件为：反应温度70℃，反应时间1．5h，测试温度50℃，测试仪器NDJ-79型旋转粘度计。考察了磺化剂加量、氧化剂加量、表面活性剂加量及碱加量对稠油粘度的影响。确定最佳配方为：磺化剂、氧化剂加量均为4．5％，表面活性剂加量为0．5％，碱加量0．2％。在此条件下，体系的降粘率为22％-36％。

Laboratory Study of Chemically Visbreaking for Heavy Oil with Ternary Complex Comprising Sulfonate,Oxidant,and Alkaline

Heavy oil was visbroke chemically by sulfonation and oxidation. Accroding to the evaluation criterion for heavy oil breaker,the experimental conditions were determined as follows：reaction temperature 70 ℃, reaction time 1.5 hours, test temperature 50℃ using NDJ - 79 rotary viscometer as test instrument. The effects of amount of sulfonate, oxidant, surfactant, and alkaline on viscosity of heavy oil were examined. The optimum formulation was as follows： sulfonate 4.5% ,oxidant 4.5% ,suffactant 0.5% ,alkaline 0.2%. The viscosity reduction rate of the system was 22% -36% under the above conditions.