在以石油为基础的钻井流体中用于断裂插头的相位转换硬化双网水凝
Xinying Cui1, Chengwen Wang1, Weian Huang1
1School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.
Gels (Basel, Switzerland)
|August 28, 2025
概括
开发了一种新型的双网水凝,用于高温钻井液. 这种相位转换硬化的凝具有增强的机械强度和堵塞效率,解决了以石油为基础的钻井流体流失的挑战.
科学领域:
- 材料科学
- 石油工程
- 聚合物化学
背景情况:
- 在钻井过程中流失的循环会导致大量流体流失,环境损害和成本增加.
- 目前用于断裂堵塞的凝材料在高温稳定性和机械强度方面存在局限性.
- 开发强大的凝对于高效和环保的钻井操作至关重要.
研究的目的:
- 开发一种耐高温,相位转换硬化的双网液凝,用于以石油为基础的钻井液体.
- 在恶劣的下井条件下增强水凝的机械性能和堵塞性能.
- 调查改性水凝性能改善的机制.
主要方法:
- 一个双网络水凝的合成.
- 使用乙烯糖醇 (EG),聚乙烯糖醇 (PEG) 和糖醇 (Gly) 的相位转换处理.
- 机械性能 (压力强度),堵塞效率,热稳定性 (TGA),化学成分 (GC-MS) 和化学结构 (ATR-IR) 的评估.
主要成果:
- 阶段转换显著提高了高温下的压力强度和堵塞效率.
- 在高温处理后,GC-MS显示脱水和试剂交换,导致固体含量增加和油相占主导地位.
- ATR-IR证实了键的形成,有助于凝强度.
- TGA表示PEG增强了热稳定性,而EG具有负面影响,而Gly的影响是微不足道的.
结论:
- 开发的相位转换硬化双网水凝为高温钻井流体应用提供了卓越的性能.
- 提高凝强度是由于相变和脱水和结合的协同效应增加了固体含量.
- 这种材料在具有挑战性的钻井环境中提供了一个有希望的解决方案.
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