研究聚合物含有废水中的残余聚合物的形态分布和形成机制
Zengbao Wang1,2, Junjie Jiang1, HongJian Ni1
1School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.
ACS omega
|March 16, 2026
概括
聚合物淹没废水导致过器因聚合物聚合而堵塞. 这项研究揭示了离子和粘土如何诱导聚合物分解和凝聚,导致近井损伤和减少石油回收.
科学领域:
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
背景情况:
- 聚合物泛滥对于增强石油回收 (EOR) 是至关重要的.
- 洪水后的废水再注入会导致过器堵塞和由于聚合物聚合而导致的透性损坏.
- 了解生产水中的聚合物行为对于减轻这些问题至关重要.
研究的目的:
- 研究生产水中的残留聚合物的显微特征和聚合机制.
- 确定导致聚合物聚合和过器堵塞的主导因素.
- 为优化废水处理和EOR中的防堵技术提供见解.
主要方法:
- 剩余聚合物的特性,分散和稳定性的表征使用-粉色度测量,SEM,泽塔电位分析和DLS.
- 系统地探索Na+,Ca2+,Fe3+和粘土对聚合物形态和稳定性的影响.
- 在各种条件下对聚合物降解和聚合物的分析.
主要成果:
- 其余聚合物分子重量减少了~90%,显著降低了粘度.
- 聚合物从线性链转化为不稳定的合体集群 (泽塔电位0-10mV).
- Na +,Ca2 +,Fe3 +和粘土离子/矿物质通过卷积,脱水,交联和封装分别诱导聚合.
- 粘土和Fe3+的协同效应显著放大了颗粒大小,推动了花和堵塞.
结论:
- 聚合物的降解和聚合在产生的水是复杂的过程,受到离子强度,特定离子和粘土含量的影响.
- 过器堵塞的主要原因是由粘土和Fe3+相互作用引起的协同花.
- 结果为处理聚合物载体废水和制定有效的抗堵塞策略提供了理论指导.
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