含有SiO2-Fe3O4颗粒的磁响应皮克林乳液,在高盐水库中具有高度选择性的水插头
Xiaofeng Xing1, Zhiyin Zhao1, Dongmei Yang1
1College of Chemistry and Chemical Engineering of Southwest Petroleum University, Chengdu 610500, PR China.
Langmuir : the ACS journal of surfaces and colloids
|March 27, 2025
概括
这项研究开发了一种磁响应乳液,用于石油田的选择性水栓. SiO2-Fe3O4颗粒表现出极好的水堵塞能力,达到97%以上的效率,油相影响最小.
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.
- 合体和表面化学
背景情况:
- 选择性插水对于优化石油回收和防止水库中水突破等问题至关重要.
- 在石油和天然气行业中,开发稳定和响应性材料用于现场水位控制仍然是一个重大挑战.
研究的目的:
- 准备和评估磁性响应乳液,用于油田的选择性水插入应用.
- 为了研究开发的乳液的稳定性,磁性脱硫,以及水/油堵塞性能.
主要方法:
- 机械乳化被用来制备一个含有二氧化 (SiO2) -磁铁 (Fe3O4) 纳米粒子的乳液.
- 稳定性测试在室温和高温下进行.
- 在恒定磁场下分析了磁性脱硫.
- 进行了位移实验,以评估水和油相堵塞率.
- 使用了机制分析和接触角的表征.
主要成果:
- SiO2-Fe3O4乳液在室温下表现出长达30天的稳定性.
- 热稳定性在80°C以上下降,受SiO2-Fe3O4比率的影响.
- 磁场的应用促进了脱硫,表明粒子膜和表面活性剂的联合控制.
- 在排位测试中,水相堵塞率超过97%,而油相堵塞率仍低于45%.
- 复合材料的交叉连接形式,特别是包裹SiO2的Fe3O4颗粒,提高了水堵塞性能.
结论:
- 磁性响应的SiO2-Fe3O4乳液显示出在油田中选择性插水的巨大潜力.
- 材料的性能可以通过粒子比调整,并受到温度和磁场的影响.
- 封装SiO2的Fe3O4的独特结构是实现高水效率与低油阶段损害的关键.
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