通过以酸为基础的离子液体以超敏感释放为阻力减速器进行pH和温度的双切换聚合物乳液
Liyin Zhang1, Shanshan Dai1, Ying Xiong2
1College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China.
Langmuir : the ACS journal of surfaces and colloids
|November 20, 2025
概括
这项研究开发了一种用于液压压裂的新型可切换聚合物乳液阻力减速器. 它在20秒内迅速溶解在水中,显著提高了页岩油和天然气开采效率.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 水力压裂需要快速溶解的聚烯胺阻力减速器,以有效地提取页岩油气.
- 当前阻力减速器面临的挑战是由于快速注入过程需要更快的溶解率.
研究的目的:
- 从脂肪酸和酒精氨基酸合成离子液体 (ILs),作为可切换的乳化剂.
- 开发适应pH值和温度的聚合物乳液,以提高阻力降低.
- 为了提高阻力减速器在液压压裂流体中的溶解率.
主要方法:
- 使用W/O开关的逆乳液聚合,使用烯胺 (AM),烯酸 (AA) 和2-烯胺-2-甲基硫酸 (AMPS) 的单体乳液.
- 利用pH和温度响应的接口开关机制来控制聚合物释放.
- 在乳化剂头组中内置的乙氧化 (EO) 链用于温度响应.
主要成果:
- 在pH 9下,可切换的聚合物乳液阻抗减速器的快速溶解速度仅为20秒.
- 已证明高阻力降低率在清水中为74.93%,在标准盐水中为73.78%,度为0.05%的度.
- 分子动力学模拟提供了对聚合物乳液相互作用和释放机制的见解.
结论:
- 开发的可切换聚合物乳液阻力减速器在液压压裂流体技术中取得了重大进展.
- 快速溶解和高阻力降低效率解决了页岩油气开采的关键挑战.
- 响应pH值和温度的特性允许在各种下孔条件下进行调节性能.
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