摘要
以胜利油田典型稠油掺水集输管道进/出口采集的7种油水样为研究对象,基于实际管输油水介质中的乳化水含量,实验模拟与确定实际油水流的乳化条件,测试分析不同稠油的乳化特性,对比分析模拟乳化油与实际乳化油粘温特性的相似性,探讨不同油水混合液在相应模拟乳化条件下的反相点与实际油水流乳化水含量之间的关系。结果表明:特稠油掺水完全乳化所需的搅拌时间比普通稠油长得多,普通稠油完全乳化所需的搅拌时间与掺水率呈正相关,特稠油完全乳化所需的搅拌时间与掺水率无明显关联性;室内模拟乳化油与管输实际乳化油的粘温特性相似,模拟油水乳状液的反相点与相应的实际管输油水流的乳化水含量基本相同。因此,室内可以模拟确定稠油掺水输送的乳化条件。
7 kinds of oil and water samples collected from inlet and outlet of typical heavy oil mixed with water gathering pipeline in Shengli Oilfield are taken as research objects.Based on emulsified water content in the oil/water medium of some actual pipeline,an experimental simulation to determine emulsification condition of actual oil/water flow is made,and emulsifying property of different heavy oils is tested and analyzed to comparatively analyze the similarity of viscosity-temperature characteristics of simulation emulsified oil and actual emulsified oil.The paper discusses different oil/water mixtures' relationship between phase inversion point and actual oil/water flow emulsified water content under the corresponding simulated emulsification condition.The results indicate that complete emulsification of extra heavy oil mixed with water needs more mixing time than common heavy oil.The mixing time required for the complete emulsification of common heavy oil is in direct correlation with watering rate and mixing time required for the complete emulsification of extra heavy oil has no significant relation with the watering rate.Indoor simulation emulsified oil is similar to actual emulsified oil of pipeline in the viscosity-temperature characteristics and the phase intersion point of simulation oil/water emulsion fluid is basically the same with emulsion water content of corresponding actual pipelined oil/water flow.Therefore,indoor simulations can be made to determine the emulsification condition of heavy oil for watering transportation.
出处
《油气储运》
CAS
2012年第4期250-253,327-328,共4页
Oil & Gas Storage and Transportation
基金
国家自然基金"稠油流动边界层在水基泡沫作用下的阻力特性研究"
1074136
高等学校博士学科点专项科研基金联合资助"稠油掺水流动粘度测定及压降预测研究"
20115121110004
关键词
稠油
掺水输送
反相点
乳化条件
实验模拟
heavy oil,watering transportation,opposite phase point,emulsification condition,experimental simulationwith
