基于异构结构双交联策略的坚固水凝的构建,用于在恶劣的水库中控制流量
Yun Cheng1, Miaomiao Hu2, Jie Cao1
1School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China.
Journal of colloid and interface science
|April 22, 2025
概括
这项研究引入了一种具有双交联结构的新型聚合物水凝,增强了深油田配置控制的机械强度和稳定性. 新的水凝有效地在恶劣的水库条件下堵塞高透度的形成.
科学领域:
- 材料科学 材料科学 材料科学
- 石油工程是石油工程中的一个.
- 聚合物化学 聚合物化学
背景情况:
- 传统的预制颗粒物凝 (PPG) 具有有限的机械强度和热稳定性,阻碍其在具有挑战性的油田环境中应用.
- 在复杂的水库中,有效的配置控制和增强的石油回收需要具有更好的性能的先进聚合物水凝.
- 现有的水凝在高温和盐度等恶劣条件下难以堵塞高度透的形成.
研究的目的:
- 开发一种具有卓越的机械性能和稳定性的新型异构结构双交联聚合物水凝.
- 为了研究基于甲基化硫酸盐 (MLS) 的水凝的合成和性能,用于深度配置控制.
- 为了评估水凝在高温,高盐度的水库和破碎的岩石核心中的有效性.
主要方法:
- 合成甲基化硫酸盐 (MLS) 作为一个宏分子交叉连接剂.
- MLS与单体 (烯胺,烯酸,N-甲基烯胺,AMPS) 和N,N'-甲基烯胺 (MBA) 反应,形成一个双交联网络.
- 在不同温度和盐度下,水凝的机械性能 (弹性模块,强度,性) 和膨胀行为的表征.
- 在自然破裂岩核中进行水驱动的测试,以评估堵塞性能.
主要成果:
- 合成的水凝表现出了显著的机械性能:弹性模量 (42,368Pa),强度 (0.14MPa) 和性 (2.96MJ·m−3).
- 在不同的温度和盐度条件下,水凝表现出稳定的性能和胀行为.
- 在破碎岩石核心测试中,水凝在0.5毫升/分钟的流量下达到高突破压力 (194 psi/ft),满足了堵塞要求.
结论:
- 使用MLS的新型异构结构双交联水凝,为油田应用提供了比传统PPG显著的改进.
- 水凝的强大的机械性能和在恶劣条件下稳定的性能使其适合深层控制和增强的油脂回收.
- 这种先进的水凝技术有效地解决了高温和高盐度复杂水库中的水堵塞挑战.
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