基于数字孔网模型的剩余石油和开采方法的微观分布模式研究
Xianda Sun1, Xudong Qin1, Chengwu Xu1
1State Key Laboratory of Continental Shale Oil, Northeast Petroleum University, Daqing 163318, China.
Polymers
|December 17, 2024
概括
通过调整度,分子量和界面张力来优化聚合物泛滥,可以提高剩余油的回收. 这项研究揭示了有效的石油开采和水库开发的关键参数.
科学领域:
- 石油工程是石油工程中的一个.
- 增强石油回收的方法
- 储水库工程 储水库工程
背景情况:
- 全球能源需求需要高效的石油开采.
- 聚合物泛滥对于提升石油回收至关重要,但缺乏对微观剩余油的分布和位移机制的详细理解.
研究的目的:
- 调查聚合物度,分子量和界面张力对剩余油分布和位移效率的影响.
- 建立一个数字毛孔网络模型来模拟聚合物泛滥过程.
主要方法:
- 使用入侵数据建立了一个数字毛孔网络模型.
- 使用3Dmax软件可视化毛孔结构.
- 在不同聚合物度,分子重量和界面张力下模拟油位移.
主要成果:
- 聚合物度的适度增加 (1000-2000 mg/L) 提高了回收率约1.45%.
- 较高的分子量 (16-24万) 增加了~1.07-1.37%的恢复.
- 降低表面张力显著提高恢复到71.72%.
结论:
- 调整聚合物参数优化了微观的剩余油分布.
- 提高石油排水效率为改善油田回收和储库开发提供了基础.
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