氧化胺型清洁压裂液的制备及室内评价  

Preparation and laboratory of amine oxides clean fracturing fluid

作　　者：李刚辉[1] 周雷[1] 阿尔吐克[2] 崔争攀 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021 [2]新疆油田公司勘探开发研究院,新疆克拉玛依834000 [3]长庆油田公司超低渗透油藏第二项目部,甘肃庆阳745100

出　　处：《陕西科技大学学报（自然科学版）》2014年第5期82-85,共4页Journal of Shaanxi University of Science & Technology

摘　　要：以油酸酰胺丙基二甲基叔胺、过氧化氢为原料制备出油酸酰胺丙基二甲基氧化叔胺(OADO)稠化剂.研究了冰乙酸、氯化铵添加量对OADO稠化性能的影响,检测了压裂液的耐温性、耐剪切性、悬砂性、耐酸碱性和破胶性.结果表明,m(氯化铵)∶m(冰乙酸)∶m(OADO)∶m(水)为0.5∶1∶1.5∶100时,压裂液pH值为6.0,粘度可达到82mPa·s,70℃时可有效悬砂,剪切60min后粘度仍大于25mPa·s,当压裂液中煤油含量大于0.8%时,120min内可完全破胶.The thickener of oleic amidopropyl dimethyl amine oxide（OADO）was prepared by oleic amidopropyl dimethylamine and hydrogen peroxide.The influences of the addition of acetic acid and ammonium chloride on the thickening property of OADO were studied.Meanwhile,the temperature resistance,shearing resistance,suspended sand performance,acid and alkaline resistance and gel breaking property of fracturing fluid were also studied.The results show that the pH value of clean fracturing fluid was 6.0and the viscosity can reach 82mPa·s when ammonium chlorid,acetic acid,OADO and water were mixed at the mass ratio of0.5∶1∶1.5∶100.The clean fracturing fluid can suspend sand effectively at 70℃and the viscosity still exceeded 25mPa·s after shearing for 60 minutes.The fracturing fluid can break completely within 2hwhen the concention of kerosene was above 0.8%（wt.%）.

关 键 词：清洁压裂液 氧化胺 油酸酰胺丙基二甲基氧化叔胺 流变性能 室内评价 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]