具有可调节动态网络的CO2响应性聚合物水凝,用于在储中的断裂插头
Yuanzi Yan1, Yan Tao2, Shaoli Zhou2
1Shaanxi Key Laboratory of Higher Education Institutions for Intelligent Prevention and Control of Coal Mine Disasters, Shaanxi Energy Institute, Xianyang, 712000, China. yanyuanzi@sxny.cn.
一种新的聚合物水凝,P ((AM-AMPS-MDA),为破裂水库提供快速的二氧化碳反应和出色的稳定性. 这种先进的堵塞材料增强了二氧化碳增强的石油回收和封存应用.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 石油工程是石油工程中的一个.
背景情况:
- 常规的二氧化碳响应性堵塞材料在断裂水库中面临局限性,包括固定网络结构,响应时间缓慢和长期稳定性差.
- 有效的合规控制对于优化石油回收和确保二氧化碳封存操作的完整性至关重要.
研究的目的:
- 设计和合成一种新型的聚合物水凝,P(AM-AMPS-MDA),用于破裂储应用,具有增强的二氧化碳响应性和稳定性.
- 通过开发具有混合网络结构和可调节性质的水凝来解决现有插头材料的局限性.
主要方法:
- 使用溶液共聚合来合成P ((AM-AMPS-MDA) 聚合物水凝.
- 使用FTIR,TGA/DSC,风湿学和应变扫描测试来表征水凝的结构.
- 通过二氧化碳反应时间,膨胀率,储存模量,厚度,热稳定性,长期质量保留和核心洪水测试来评估性能.
主要成果:
- 优化的MDA2水凝表现出快速的CO2反应 (<10分钟),平衡的膨胀率 (~18),高存储模量 (1790Pa) 和优异的厚度 (在30秒内恢复90%).
- 水凝表现出了显著的热稳定性 (Td ≈ 617 °C),并在经过10年的储模拟后保持了超过85%的质量.
- 核心洪水测试证实了有效的堵塞 (残余电阻系数>20) 和可注射性.
结论:
- 这种新的P ((AM-AMPS-MDA) 水凝克服了传统插头材料的关键局限性,在模拟的水库条件下提供快速的CO2反应,卓越的稳定性和有效的性能.
- 这种特聚合物水凝为CO2增强的石油回收和碳封存应用中的合规性控制提供了有前途的解决方案.
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