CE-H降凝剂在河石输油管道上的应用  

Application of CE-H Depressant in He-Shi Oil Pipeline

作　　者：林炜 刘义敏 

机构地区：[1]中国石油天然气华北石油管理局油气销售公司

出　　处：《油气储运》1997年第2期9-11,共3页Oil & Gas Storage and Transportation

摘　　要：河石(河间—石家庄)输油管道自1993年投产以来一直在低输量下运行。为了解决这个问题,对管输原油添加CE-H降凝剂进行了室内和现场试验。结果表明,河石线管输原油添加50mg/LCE-H降凝剂,并加热到70℃综合处理,具有较好的降凝、降粘效果。原油凝点由36℃降到16℃,降凝幅度为20℃;粘度由549mPa·s降为137mPa·s,降粘率为74.9％。原油改性后延长了管道允许停输时间,而且在低温下降粘效果较好。CE-H降凝剂还有较好的抗剪切和重复加热性能。管道加注降凝剂后可使输量下降,取代了管道在低于最小启输量时的反输,实现了管道安全经济输油。He-Shi(Hejian-Shijiazhuang)Oil Pipeline has been operating at low throughput when commissioning since 1993. To solve this problem,the laboratory and site tests adding the CE-H depressant to the oil have been made,and the results show that a obvious effect in pour point depression and viscosity reduction has been obtained when the 50 mg/L of CE-H depressant is added to the oil with a comprehensive treatment at 70℃. The freezing point of the crude oil depresses from 36 ℃ to 16 ℃ (the magnitude of pour point depression is 20 ℃),the viscosity depresses from 549 mPa · s to 137 mPa · s(the viscosity reduction rate is 74. 9 %). The allowable shut-down time of the pipeline can be extened after the oil is modified,the viscosity reduction effect is better at low temperature. The CE-H depressant also has a better characteristics in anti-shear and reheating. The oil throughput transported can be reduced with the depressant added instead of reverse pumping at when the oil throughput is lower than the minimum initial oil throughput of the pipeline,which realizes the cost-effective and safe operation.

关 键 词：原油管道 降凝剂 管道运输工艺 

分 类 号：TE832.3[石油与天然气工程—油气储运工程]