高含蜡原油降凝降粘技术研究  

Research on the Technology of Pour Point and Viscosity Reduction for High Waxy Crude Oil

作　　者：辛迎春[1] XIN Ying-chun(Sinopec Petroleum Engineering Corporation,Dongying 257026,China)

机构地区：[1]中石化石油工程设计有限公司,山东东营257026

出　　处：《中小企业管理与科技》2020年第29期194-196,共3页Management & Technology of SME

摘　　要：论文通过流变实验评价了SYKJ降凝剂对原油的凝点、粘度与屈服值的影响。结果表明:SYKJ降凝剂投加100mg/L剂量,原油凝点降幅为15℃,25℃时降粘率为81.7%,对低温流动性的改善效果较明显。在0.5℃/min低降温速率下,加剂原油的降凝降粘效果较好,但随着降温速率增大,降凝降粘效果变差。经500s-1高速剪切后,加剂原油的凝点和降粘率等指标的回升率均可满足降凝剂使用要求,SYKJ降凝剂具有较强的抗剪切性能。在70℃重复升温处理后,加剂原油性质未发生恶化。The paper evaluates the effect of SYKJ pour point depressant on the pour point,viscosity and yield value of crude oil through rheological experiments.The results show that:when the dosage of SYKJ pour point depressant is 100 mg/L,the reduction range of the pour point of crude oil is 15℃,and the viscosity reduction rate is 81.7%at 25℃.It has obvious effect on the improvement of low temperature fluidity.At a low cooling rate of 0.5℃/min,the effect of pour point and viscosity reduction is better of crude oil with depressant,but with the increase of cooling rate,the effect of pour point and viscosity reduction becomes worse.After 500 s-1 high-speed shearing,the recovery rate of pour point,viscosity reduction rate and other indexes of crude oil with depressant can meet the use requirements of pour point depressant.SYKJ pour point depressant has strong shearing resistance.After repeated heating treatment at 70℃,the properties of the crude oil with depressant did not deteriorate.

关 键 词：高含蜡原油 低温流动性 降凝剂 加剂热处理 降凝降粘 

分 类 号：TE868[石油与天然气工程—油气储运工程]