O/W乳化原油转型影响因素和对策研究  

Study on Influencing Factors of Transformation of O/W Emulsion and Its Countermeasures

作　　者：赵利军 赵修太[2] 张慧 

机构地区：[1]中石化国际石油勘探开发有限公司,北京100029 [2]中国石油大学(华东)石油工程学院,山东青岛266580 [3]中国石油大学(华东)教育发展中心,山东青岛266580

出　　处：《长江大学学报（自科版）（中旬）》2013年第7期133-135,139,共4页Journal of Yangtze University(Nature Science Edition)

基　　金：中国石油大学(华东)研究生创新基金项目(S09-03)

摘　　要：考察了原油组份、水质、环境条件等对O/W(水包油型)乳化原油转型的影响:沥青质和胶质对O/W乳化原油的转型起促进作用,芳香分起抑制作用;在1000～4000mg/L的NaCl和10.0～12.0的pH值范围内,O/W乳化原油较稳定,CaCl2浓度大于0.6×103 mg/L后,O/W乳化原油极易转型;低于临界剪切速率(8r/s)下的O/W乳化原油不容易转型,随温度升高O/W乳化原油的稳定性下降,易发生乳化转型,乳化降黏剂能够抑制O/W乳化原油的转型。提出了防止O/W乳化原油转型的对策与具体措施。The influence of crude oil composition,water quality and other factors on O / W emulsion transformation is researched in the lab.Experiments show that resin and asphaltene can promote the transformation of O / W emulsion;meanwhile,aromatics play an inhibitive role.It is showed that an appropriate salinity(1000～4000mg / L) and pH value(10.0～12.0) are suitable for stabilizing the O / W emulsion,while the addition of divalent ions promotes the transformation of O / W emulsion.Transformation is not usually appeared under critical shear rate(8r / s).With the temperature increasing,the stability of the O / W emulsion declines.And the type of surfactants plays an inhibitive role in the transformation of the O / W emulsion.The prevention measures and systems are researched and summarized.

关 键 词：O W乳化原油 转型黏度 转型时间 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]