原油降凝剂在我国长输管线上的应用  

APPLICATION OF POUR POINT DEPRESSANTS FOR CRUDE OIL IN LONG DISTANCE PIPELINE TRANSPORTATION OF CHINA

作　　者：张付生 王彪 谢慧专 董丽坚 曹旦夫 高晓宏 

机构地区：[1]石油勘探开发科学研究院油化所,北京100083 [2]华东输油管理局

出　　处：《油田化学》1999年第4期368-371,共4页Oilfield Chemistry

摘　　要：我国已有多条原油长输管线应用降凝剂，革新了老管线传统的输油工艺和新管线传统的投产工艺，并取得了巨大的经济效益。在析蜡点以上，泵剪切和管流剪切对原油的低温流变性无影响；在析蜡高峰区内，泵剪切对原油的低温流变性有恶化作用，管流剪切对原油的低温流变性有改善作用，但这种作用是有条件的。This paper introduces the results of using pour point depressants(PPDs) for crude oil in long distance pipeline transportation in China. The data of pour point depression, viscosity reduction and abnormal point decrease of the crude oils being transported in more than 10 pipelines(over 1 year for the most pipelines) are tabulated and analyzed and tremendous economic benifits are obtained. It is shown that both the pump and the pipeline shear do not affect the rheologic behavior of the crude oil above its waxing out point; the pump shear can deteriorate but the pipeline shear can improve the rheologic behavior near the peak temperature of waxing out at special conditions.

关 键 词：降凝剂 管道输油 低温流变性 长输管道 

分 类 号：TE869[石油与天然气工程—油气储运工程] TE624.8