Page 203 - 《精细化工》2022年第12期

第 39 卷第 12 期 精 细 化 工 Vol.39, No.12
2 022 年 12 月 FINE CHEMICALS Nov. 2022

油田化学品与油品添加剂
超支化压裂液稠化剂的制备及评价

*
马喜平，周照波 ，黄 莉，母严冬，黄清洪
（西南石油大学 化学化工学院，油气田应用化学四川省重点实验室，油田化学教育部工程研究中心，四川
成都 610500）

摘要：以二乙醇胺（DEA）、丙烯酸甲酯（MA）、1,1,1-三羟甲基丙烷（TMP）、顺丁烯二酸酐（MAH）为原料，
合成了一种端羧基超支化大单体 HPAE-C。并以 HPAE-C、丙烯酰胺（AM）、丙烯酸（AA）以及 2-丙烯酰胺基-
2-甲基丙磺酸（AMPS）为单体，在水溶液中进行自由基聚合得到一种四元共聚物稠化剂 PHPAE-C。通过 FTIR
1
和 HNMR 对其结构进行表征。评价了超支化稠化剂的溶液性质和交联性能。结果表明，稠化剂质量浓度为
–1
3000 mg/L（剪切速率为 7.34 s ，25 ℃）时，溶液表观黏度可达 846.7 mPa·s，升温至 90 ℃时，表观黏度仍为
2+
+
2+
570 mPa·s，并且在 Na 质量浓度为 6000 mg/L、Ca 和 Mg 质量浓度为 600 mg/L 时，表观黏度仍能达到 300 mPa·s
以上，说明 PHPAE-C 具有良好的增黏、耐温、耐盐和抗剪切性能；在 m(聚合物水溶液，聚合物质量分数为 0.3%)∶
–1
m(乙酰丙酮锆)=100∶0.06、交联温度为 55 ℃、pH=5 时，交联效果最佳。在 120 ℃、剪切速率 170 s 下剪切
80 min 后，该体系的表观黏度可达到 450 mPa·s 左右，并且是一种具有良好悬砂、破胶性能的低伤害压裂液体系。
关键词：超支化共聚物；稠化剂；交联；压裂液；性能评价；油田化学品
中图分类号：O632. 52 文献标识码：A
文章编号：1003-5214 (2022) 12-2569-09 开放科学 (资源服务) 标识码 (OSID)：

Preparation and evaluation of thickener for
hyperbranched fracturing fluid

*
MA Xiping, ZHOU Zhaobo , HUANG Li, MU Yandong, HUANG Qinghong
（Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Engineering Research Center of Ministry of
Education of Oilfield Chemistry, School of Chemistry and Chemical Engineering, Southwest Petroleum University,
Chengdu 610500, Sichuan, China）

Abstract: Quaternary polymer thickener PHPAE-C was synthesized via radical polymerization of carboxyl
terminated hyperbranched macromonomer HPAE-C, which was prepared from diethanolamine (DEA),
methyl acrylate (MA), 1,1,1-trimethylolpropane (TMP) and maleic anhydride (MAH), acrylamide (AM),
acrylic acid (AA) and 2-acrylamide-2-methylpropanesulfonic acid (AMPS) as monomer in aqueous
1
solution . The structure of PHPAE-C obtained was then characterized with FTIR and HNMR, followed by
evaluation on its solution properties and crosslinking performance. The results showed that the apparent
viscosity of the prepared thickener solution with a mass concentration of 3000 mg/L reached 846.7 mPa·s at
–1
a shear rate of 7.34 s and temperature of 25 ℃, still remained at 570 mPa·s as the temperature rose to
2+
+
90 ℃, and still above 300 mPa·s when the mass concentration of Na was 6000 mg/L and those of Ca and
2+
Mg were 600 mg/L, indicating that PHPAE-C had good viscosity improvement, temperature resistance,
salt resistance and shear resistance. Meanwhile, it was found that crosslinking reached best when
m(polymer aqueous solution，polymer mass fraction was 0.3%)∶m(zirconium acetyl acetonate)=100∶0.06,
crosslinking temperature at 55 ℃ and pH=5. After being continuously sheared at 120 ℃ for 80 min with
–1
a shearing rate of 170 s , the system showed an apparent viscosity of ~450 mPa·s, exhibiting low damage
with good sand suspension and gel breaking performance.

收稿日期：2022-03-25; 定用日期：2022-06-24; DOI: 10.13550/j.jxhg.20220275
作者简介：马喜平（1963—），男，教授，E-mail：mxp163@163.com。联系人：周照波（1998—），男，硕士生，E-mail：591570164@
qq.com。