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页岩层井壁的发展和表征用纳米体密封剂稳定了井壁

Daqi Li^1,2, Shuyang Gao^1,2, Zhichuan Tang^1,2

¹State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 102206, China.

|June 27, 2024

概括

一种新型的温度敏感纳米密封剂,ASN,有效地封闭了页岩微孔和微裂. 这大大提高了页岩层的钻井稳定性,为钻井操作提供了一个有希望的,环保的解决方案.

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.
纳米技术纳米技术

背景情况:

页岩形成中的微裂导致由于液体入侵而导致井口不稳定.
页岩微孔的有效密封对于保持井口完整性至关重要.

研究的目的:

开发一种新的纳米密封剂,以提高页岩井钻井稳定性.
为了合成和描述一个对温度敏感的基于纳米粒子的阻断剂.

主要方法:

用合剂 (A-1891) 对纳米-SiO2颗粒进行表面处理.
通过对温度敏感的多烯烯胺聚合物进行修改,以产生纳米密封剂ASN.
使用红外光谱学和粒子大小分析进行表征.

主要成果:

通过化学结合证实了对温度敏感的纳米密封剂ASN的成功合成.
均的颗粒大小分布,没有合成纳米颗粒的聚合.
在页岩中有效填充纳米微孔和微裂,提高密度和井口稳定性.

结论:

合成的纳米密封剂ASN证明了对页岩形成的有效密封能力.
ASN具有良好的耐温度性,适应各种水库条件的适应性,无毒且环保.
在确保页岩形成井口稳定性方面,ASN显示出稳定的应用的巨大潜力.

关键词:

钻孔的稳定性钻孔的稳定性一个聚合物聚合物.密封剂是一种密封剂.对温度敏感的温度很敏感.

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