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通过Zwitterionic聚合物诱导盐凝形成以抑制协同作用的甲

Fei Gao^1,2,3, Shijun Tang⁴, Peng Xu^1,2,3

¹School of Petroleum Engineering, Yangtze University, National Engineering Research Center for Oil & Gas Drilling and Completion Technology, Wuhan 430100, China.

Gels (Basel, Switzerland)

|August 28, 2025

概括

一种新的zwitterionic聚合物NDAD在深水钻探中显著抑制甲水合物 (MH) 的形成. 它的形成时间延长了4.9倍,盐通过凝网络的形成增强了它的有效性.

科学领域:

化学工程
材料科学
石油工程

背景情况:

在深水钻井操作中,甲水合物 (MH) 形成对流量保证构成重大挑战.
有效抑制MH对于维持运营完整性和安全性至关重要.

研究的目的:

合成并评估一种新型基聚合物NDAD作为甲酸盐抑制剂的性能.
研究NaCl对NDAD抑制效率的协同作用.
通过分子模拟阐明NDAD的抑制机制.

主要方法:

合成Zwitterionic聚合物NDAD.
高压反应器测试以评估水合物抑制性能.
磁共振成像 (MRI) 用于可视化水合物形成.
分子模拟以了解抑制机制.
用于优化抑制剂剂量的响应表面方法 (RSM).

主要成果:

与PVCap相比,NDAD在1.0%的重量下延长了MH形成时间的4.9倍.
通过诱导凝网络形成并将粘度提高98%,NaCl (10-15%重量) 协同增强了NDAD的抑制.
作为主要影响抑制功效的因素,RSM确定了NDAD剂量.

结论:

对于深水应用,NDAD是一种高效的甲酸盐抑制剂.
通过物理凝网络的形成,NaCl的协同作用提高了NDAD的性能,阻碍了甲扩散.
NDAD通过竞争性水分和质量转移阻力抑制MH的形成,提供双重作用机制.

关键词:

深水钻探水合物抑制响应表面的方法盐诱导的物理凝结构基聚合物

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