无盐耐高温黏弹性表面活性剂LQ-FJ压裂液性能

金雷平; 方波; 卢拥军; 邱晓惠; 刘玉婷; 田萌; 杨沫

doi:10.3969/j.issn.1001-5620.2015.03.024

无盐耐高温黏弹性表面活性剂LQ-FJ压裂液性能

doi: 10.3969/j.issn.1001-5620.2015.03.024

1.
华东理工大学化工学院流变学研究室, 上海
2. 中国石油勘探开发研究院廊坊分院, 河北廊坊

基金项目: 863计划"致密砂岩气藏低伤害压裂液体系研究与应用"(2013AA064801)中致密砂岩气藏新型压裂液体系流变性研究。

详细信息

作者简介:
金雷平,1989年生,主要从事油田化学品开发及流变学研究工作。地址:上海市徐汇区梅陇路130号华东理工大学化工学院化工流变学研究室;邮政编码200237;电话18818200908;E-mail:xiaopingsnmst@163.com。

中图分类号: TE357.12
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出版历程
- 收稿日期: 2015-01-20
- 刊出日期: 2015-05-31

Property and Rheology of High Temperature Salt-free Fracturing Fluid LQ-FJ

Research Center of Chemical Rheology of the School of Chemical Engineering, East China University of Science and Technology. No. 130 Meilong Lu, Xuhui District, Shanghai 200237, China

摘要

摘要: 研究了由两性表面活性剂LQ-FJ 在不同浓度下形成的清洁压裂液及其性能。结果表明,两性表面活性剂LQ-FJ 在水中4 min 可均匀溶解、自增稠为黏弹性清洁压裂液;当LQ-FJ 浓度达2% 时无需反离子盐即可形成耐温达110℃的清洁压裂液。黏温曲线表明,2%LQ-FJ 体系具有热增稠和热变稀特性。流变特性研究表明,2%LQ-FJ 体系具有温度滞后环和剪切触变性,流动曲线可用共转Jeffreys 本构方程表征。破胶实验表明,煤油、阴离子表面活性剂J1均可作为2%LQ-FJ 体系的破胶剂,室温下破胶液黏度均小于1.5 mPa·s。
- 两性表面活性剂 /
- 清洁压裂液 /
- 破胶剂 /
- 耐高温黏弹性胶束
Abstract: Study on the property of clear fracturing fluid formulated by amphoteric surfactant LQ-FJ showed that LQ-FJ dissolved completely in water in 4 minutes and made the water viscosified into a clear fracturing fluid. At 2% of LQ-FJ, no counter-ionic salts were needed for the preparation of a clear fracturing fluid which had temperature stability up to 110℃. Viscosity-temperature curves of the fracturing fluid demonstrated that the 2% LQ-FJ fracturing fluid had thermal-thickening and thermal-thinning properties. Rheology study showed that the 2% LQ-FJ fracturing fluid had a temperature hysteresis loop and shear thinning property. Jeffrey's co-rotational constitutive equation can be used to characterize the flow curve of the fracturing fluid. Gel breaking experiment indicated that kerosene and ionic surfactant J1 all can be used as gel breaker for the 2% LQ-FJ fracturing fluid, and the gel-broken fluid had viscosity at room temperature of less than 1.5 mPa·s.
- Amphoteric surfactant /
- Clear fracturing fluid /
- Gel breaker /
- High temperature visco-elastic micelle

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