石油磺酸盐与原油乳化影响因素研究  

Research on influencing factors for petroleum sulfonate-crude oil emulsification

作　　者：丛娟[1] 岳湘安[1] 尤源[2] 张立娟[1] 王超[3] 李宏鑫 

机构地区：[1]中国石油大学(北京)石油工程教育部重点实验室,北京102249 [2]中国石油长庆油田分公司,陕西西安710018 [3]厦门大学化学化工学院固体表面物理化学国家重点实验室,福建厦门361005 [4]中国石油阿姆河天然气勘探开发(北京)有限公司,北京100101

出　　处：《油气地质与采收率》2010年第5期46-49,共4页Petroleum Geology and Recovery Efficiency

基　　金：国家重点基础研究发展计划"973"计划项目"化学驱和微生物驱提高石油采收率的基础研究"(2005CB221300);国家自然基金青年科学"油水在油藏孔喉中的流动和乳化机理研究"(50804051)

摘　　要：采用显微观测与乳状液析水率测定相结合的方法研究石油磺酸盐与原油乳化问题。通过正交实验,研究石油磺酸盐质量分数、油水体积比及振荡次数等因素对乳状液液滴结构及稳定性的影响。结果表明,油水体积比对乳状液液滴结构影响最大,随着油水体积比的增大,乳状液平均粒径和分散度先增大再减小。乳状液破乳前期,油水体积比对乳状液析水率的影响最大;乳状液破乳后期直至破乳结束,石油磺酸盐质量分数对乳状液析水率的影响最大;振荡次数对乳状液析水率的影响较小。Microscopic observation and analysis of water separating proportion were combined to study the petroleum sulfonate-crude oil emulsification in this paper. Influence of the petroleum sulfonate concentration,oil-water ratio and number of oscillations on droplet structure and stability of emulsion was studied by orthogonal experiment. The results showed that oil-water ratio has the greatest influence on emulsion droplet structure. The distribution of emulsion particle diameter was more extensive and the average diameter dilates with the rise of oil-water ratio. In the early stage of demulsification, oil-water ratio has the most influence on the variation of water separating proportion, but in the later stage of demulsification, the concentration of petroleum sulfonate showed the most influence on water separating proportion.

关 键 词：石油磺酸盐 原油乳化 液滴结构 稳定性 乳状液析水率 油水体积比 

分 类 号：TE357.43[石油与天然气工程—油气田开发工程]