文章摘要
APS体系对京11 断块原油的乳化特性
Emulsification Property of ASP System on Crude Oil of the Jing 11 Block
  
DOI:10.19346./j.cnki.1000-4092.2017.04.023
中文关键词: 油水乳状液  稳定性  三元复合驱  影响因素
英文关键词: oil-water emulsion  stability  ASP system  influencing factors
基金项目:中国石油天然气股份有限公司重大投资项目“华北油田上产稳产800万吨关键技术研究与应用”(项目编号2014-35-07)。
作者单位
雷小洋1,游靖1,单晓琨2,李勇斌1,井继哲1,吴应德1 1. 中国石油华北油田公司采油工程研究院河北任丘0625522. 中国石油华北油田公司勘探开发研究院河北任丘062552 
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中文摘要:
      为明确三元复合驱油体系(ASP)对京11 断块原油的乳化特性,提高三元复合驱后采出液破乳脱水处理效果,室内模拟研究了油水乳状液形成时转速、单一驱油剂(聚合物、表面活性剂、弱碱)以及ASP体系对乳状液稳定性的影响。结果表明:转速对乳状液形成状态有较大的影响,转速越大,形成的乳状液液滴直径越小,乳状液越稳定。在转速4000 r/min、搅拌时间20 min的条件下,随聚合物浓度升高,乳状液稳定性增强,聚合物浓度大于300 mg/L后所形成的乳状液静置2 h 后的脱水率(<5%)基本不再变化;表面活性剂在浓度大于500 mg/L后对乳状液稳定有明显的增强作用;弱碱浓度以1000 mg/L为转折点,随着弱碱浓度升高,乳状液稳定性先增强后减弱;ASP体系中,聚合物浓度对乳状液稳定性影响最大,弱碱影响最小。图4 表2参12
英文摘要:
      To clear the emulsification properties of ASP system on the crude oil of the Jing 11 block and improve the demulsification and dehydration treatment effect of the produced fluid of after ASP flooding,through the indoor experiment,the influence of rotation rate,single oil displacement agent(polymer,surfactant,alkaline)and ternary compound system on the emulsion stability on the formed oil-water emulsion was probed. The results indicated that,the rotation rate had great influence on the formation of emulsion. The bigger the rotation rate,the smaller the diameter of emulsion drops and the more stable the emulsion. At the rotation rate of 4000 r/min and the stirring time of 20 minutes,as the polymer concentration rose,the emulsion became stable,and when the polymer concentration was greater than 300 mg/L,the dehydration rate(<5%)of the emulsion changed little. When the surfactant concentration was higher than 500 mg/L,the emulsion stability was strengthened obviously. Weak alkaline concentration was set 0.1% as the turning point,with the increase of weak base concentration,the emulsion stability enhanced firstly and then weakened. The components of the ternary compound system was arranged according to the influence of their on the emulsion stability,polymer concentration>surfactant concentration>weak alkaline concentration.
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