陕西科技大学学报（自然科学版）2009，Vol.27Issue(4)：10-15,6.
热历史和剪切历史作用对长庆含蜡原油凝点的影响
SHEAR AND HEAT HISTORY AFFECTION ON THE SOLIDIFICATION POINT OF CHANGQING WAXY CRUDE OIL
摘要
Abstract
Through analogue experiments in laboratory and analysis of the results,made clear that temperature of heating treatment and shear rate are the two main factors that affect the solidification point of Changqing waxy crude oil. Worked out the critical shearing time is 200 s because after longer time′s treatment the solidification point of Changqing waxy crude oil can be invariant. Therefore,the experiment took the solidification point after 200 s′ shearing action as the solidification point of the waxy crude oil in long distance pipeline. On this basis,conduct analogue experimentations of waxy crude oil after shearing and heating history in laboratory according to uniform design technique. Through analyzing the results,established a mathematical model which can reflect that how the temperature of heating treatment and shear rate affect solidification point of waxy crude oil,error of reservation test is smaller than 0.8 ℃,so the model is inosculate with solidification point altering rule. This model offers foundation for designing pumping and heating stations and long distance pipeline of transportation in Changqing waxy crude oil.关键词
含蜡原油/热历史/剪切历史/凝点/数学模型Key words
waxy crude oil/heating history/shear history/solidification point/mathematical model分类
石油、天然气工程引用本文复制引用
冯兵,岳湘安,蒋华义,何光渝..热历史和剪切历史作用对长庆含蜡原油凝点的影响[J].陕西科技大学学报（自然科学版）,2009,27(4):10-15,6.基金项目
国家重点基础研究发展计划(973计划)( 2005CB221300)和国家自然基金青年科学基金项目 (50804051) （973计划）
