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对于高温酸释放的温度敏感微囊凝剂的合成和表征

Yunfeng Liu¹, Lang Zhou², Xiaochun Wan³

¹Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610213, China.

|May 20, 2024

概括

一种新的微封装凝剂GLE-3在高温水库中增强了酸性. 这种新型药物提高了热稳定性,并控制了酸释放,用于更深的水库处理.

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:

深厚的高温碳酸盐储库对于四川盆地的石油和天然气生产至关重要.
这些水库中的酸化面临着诸如快速反应,有限的透率和设备腐蚀等挑战.

研究的目的:

开发一种耐高温的微封装凝剂,以在极端的水库条件下改善酸化.
在热稳定性,剪切稳定性和受控的酸释放方面评估新药的性能.

主要方法:

微封装凝剂GLE-3通过使用特定的单体和交叉连接剂通过逆乳液聚合制备.
使用红外光谱学,传输电子显微镜和粒子大小分析对GLE-3进行了表征.
评价凝酸溶液粘度,热稳定性,剪切稳定性和180°C的缓释性能.

主要成果:

GLE-3显示出一个均的颗粒大小分布 (10-100微米).
凝酸溶液在180°C时保持粘度高于27.8mPa·s,保留率为63.76%.
与未封装的GLE-1相比,GLE-3显示出优越的热和剪切稳定性,在剪切60分钟后,粘度保持88.99%.

结论:

微封装显著提高了凝剂的热和剪切稳定性.
GLE-3提供有效的高温缓释性能,对于深度酸化至关重要.
开发的剂量提高了酸系统的高温耐受性,使得在具有挑战性的水库中能够有效地酸化.

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