在水力压裂中研究两相破裂流体的流动模式,考虑到流体泄漏
Yusong Chen1, Jingwei Li1, Qi Song2,3
1CCDC Shale Gas Exploration and Development Department, Chengdu 610000, China.
ACS omega
|January 22, 2024
概括
了解二相裂变流体流动模式是现场生成推进剂裂变的关键. 这项研究揭示了注射速率,界面张力和相变液体比率如何影响流量,指导技术实施.
科学领域:
- 石油工程是石油工程中的一个.
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 在现场生成的推进剂断裂技术依赖于在断裂内部控制的双相流体流.
- 由相变形成的推动剂颗粒的分布与裂变流体的流动模式直接相关.
- 了解这些模式对于优化推进物放置和提高破裂效率至关重要.
研究的目的:
- 为了研究断裂中双相裂变流体的流动模式.
- 建立一个数学模型来预测各种条件下的流体行为.
- 提供理论指导,用于现场生成的推进剂裂变的实际应用.
主要方法:
- 基于物理性质的两相裂变流体的数学模型的开发.
- 数字实验模拟不同注射位移,界面张力和相变液 (PCL) 比率下的流体流动.
- 基于实验参数的流动模式转换 (例如,条纹到滴状) 的分析.
主要成果:
- 较低的注入位移 (3-4 m3/min) 有利于条纹流动模式,而较高的位移 (5-6 m3/min) 则促进滴状分布.
- 较低的界面张力 (15 mN/m) 会导致较少的收缩和条状的PCL分布.
- 高的界面张力和特定的PCL体积分数 (10-40%) 显著影响PCL收缩和分布,有利于滴滴或条形形成.
结论:
- 这项研究阐明了两相裂变流体的复杂流动动力学.
- 结果表明,操作参数与由此产生的流量模式之间存在明显的相关性.
- 这项研究丰富了现场生成的推进技术的理论框架,支持现场应用.
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