Page 214 - 《精细化工》2022年第1期

第 39 卷第 1 期 精 细 化 工 Vol.39, No.1
202 2 年 1 月 FINE CHEMICALS Jan. 2022

油田化学品与油品添加剂
耐高温清洁压裂液的制备及性能评价

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熊利军，王 犁，吴 洋，鲁红升
（西南石油大学 化学化工学院，四川 成都 610500）

1
摘要：以丙烯腈、二乙醇胺和芥酸为原料合成了芥酸酰胺丙基二羟乙基叔胺（UC 22 -OH）。通过 FTIR、 HNMR、
13 CNMR 及 HPLC-MS 对其进行了结构表征。将 UC 22 -OH 用作稠化剂，配制清洁压裂液，考察温度对清洁压裂
液表观黏度的影响，并探究高温下胶束聚集体的类型和尺寸。通过室内实验，对 UC 22 -OH 清洁压裂液的流变性、
携砂性、破胶返排性以及地层伤害性进行了评价。结果表明，质量分数为 4%的 UC 22 -OH 清洁压裂液在 120 ℃、
–1
170 s 下剪切 5400 s，表观黏度稳定保持在 65 mPa·s；80 ℃下其弹性模量 G' > 4.2 Pa，黏性模量 G'' > 1.7 Pa，
在陶粒体积分数为 20%的情况下，可稳定携砂 8 h；遇煤油后其可在 70 min 内彻底破胶，破胶液的表界面张力
较低；UC 22 -OH 清洁压裂液的基质渗透率损害率最低，仅为 9.1%。UC 22 -OH 清洁压裂液具有优异的耐温性和抗
剪切性、80 ℃下的携砂性能和破胶返排性能优异，对地层具有低残渣、低伤害的特性。
关键词：稠化剂；胶束聚集体；耐高温；清洁压裂液；性能评价；油田化学品
中图分类号：TE39；TE357 文献标识码：A 文章编号：1003-5214 (2022) 01-0204-08

Preparation and performance evaluation of high-temperature
resistant clean fracturing fluid

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XIONG Lijun, WANG Li, WU Yang, LU Hongsheng
（College of Chemistry and Chemical Engineering, Southwestern Petroleum University, Chengdu 610500, Sichuan, China）

Abstract: (Z)-N-{3-[bis(2-hydroxyethyl)amino]propyl}docos-13-enamide (UC 22-OH) was synthesized
from acrylonitrile, diethanolamine and erucic acid. The structure of UC 22-OH was characterized by FTIR,
1 13
HNMR, CNMR and HPLC-MS. UC 22-OH was used as thickener to prepare clean fracturing fluid. The
effect of temperature on the apparent viscosity of clean fracturing fluid was studied, and the type and size of
micelle aggregates at high temperature were analyzed. The rheological, sand-carrying, gel breaking
flowback performances of UC 22-OH clean fracturing fluid were evaluated. The results showed that the clean
fracturing fluid with a mass fraction of 4% UC 22-OH had an apparent viscosity of 65 mPa·s under a shear
–1
rate of 170 s at 120 ℃ for 5400 s. The elastic modulus G' and viscous modulus G″ were high than 4.2 and
1.7 Pa at 80 ℃, respectively. When the volume fraction of sand was 20%, it could stably sand-carrying
within 8 h at 80 ℃. The UC 22-OH clean fracturing fluid was completely broken within 70 min after
encountering kerosene, and the surface interfacial tension of the gel breaking fluid was low. Moreover, the
UC 22-OH clean fracturing fluid had the lowest matrix permeability damage rate, only 9.1%. The results
indicated that the UC 22-OH clean fracturing fluid had excellent temperature resistance and shear resistance,
sand-carrying performance and gel breaking flowback performance at 80 ℃, low residue and low damage
characteristics.
Key words: thickener; micelle aggregates; high-temperature resistance; clean fracturing fluids; performance
evaluation; oil field chemicals

收稿日期：2021-07-06; 定用日期：2021-09-30; DOI: 10.13550/j.jxhg.20210689
基金项目：四川省杰出青年基金（2019JDJQ0047）
作者简介：熊利军（1993—），男，硕士生，E-mail：1114954385@qq.com。联系人：鲁红升（1979—），男，教授，E-mail：hshlu@163.com。