基于油水两相流量模型的紧密油库中折射时间的优化
Qingan Zhou1, Rong Dai2, Liang Chen3
1School of Geosciences, Yangtze University, Hubei, 430100, Wuhan, China.
Scientific reports
|July 2, 2025
概括
在紧密的油库中,优化重新裂变时间至关重要. 早期干预,模拟使用双相流量模型,最大限度地提高石油产量,并通过平衡断裂扩张和压力维持来延长储寿命.
科学领域:
- 石油工程是石油工程中的一个.
- 储水池模拟器 储水池模拟器
- 增强石油回收的方法
背景情况:
- 狭窄的油库经历了刺激后的快速产量下降.
- 优化重复液压压裂的时间对于持续生产至关重要.
- 现有的模型往往缺乏对断裂-多孔介质相互作用的详细模拟.
研究的目的:
- 开发和验证一个双相 (石油-水) 流量模型,用于模拟紧密的油库中重复的液压压裂.
- 调查重新断裂时间和断裂几何学对石油产量和油库压力的影响.
- 为优化再刺激计划提供可转移的方法.
主要方法:
- 使用有限差异方法,在破裂孔隙介质中建模二相流.
- 隐式压力显式和 (IMPES) 方法被用来解决管理方程.
- 该模型与X井的生产数据进行了验证,显示储压力偏差为3.1%.
主要成果:
- 模拟表明,断裂密度的增加 (从14到21个断裂) 增加了石油产量,但加速了压力耗尽.
- 与延迟干预相比,早期重组 (四年后) 将产量延长了18%.
- 现场验证证实,反复破裂在五年内增加了26%的石油产量.
结论:
- 为了防止生产力损失,需要对压力逐渐下降进行主动规划.
- 平衡断裂网络扩张与储压力维护是优化恢复的关键.
- 开发的双相流量模型为优化异质密封油系统中再刺激策略提供了准确和可转移的工具.
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