对初始低粘度凝洪水系统的性能进行实验评估
Cheng Fu1, Bin Huang2, Wei Zhang1
1College of Petroleum and Gas Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
Molecules (Basel, Switzerland)
|July 13, 2024
概括
一种新的低粘度凝通过阻断高透性层来改善油的回收. 使用这种凝和聚合物的优化注射策略可以增强石油提取,从而提高整体回收率.
科学领域:
- 石油工程是石油工程中的一个.
- 储水库工程 储水库工程
- 增强石油回收的方法
背景情况:
- 油库的异质性给石油开采带来了挑战.
- 传统的方法很难有效地管理剩余的石油回收.
研究的目的:
- 开发和评估一种新的低粘度凝,用于储异质性调整.
- 优化聚合物和凝注射方案,以提高石油回收.
主要方法:
- 使用聚合物+Cr3+交联系统与添加剂制备低粘度凝.
- 通过三层核心位移实验来验证凝的有效性.
- 通过不同的聚合物和凝软组合来优化注射方案.
主要成果:
- 新的凝初始粘度低,凝缓慢,最终强度高.
- 核心移位实验证实了凝能够阻断高透性的层.
- 一次注射0.1孔积 (PV) 的低粘度凝,油脂回收率提高了5.10%.
结论:
- 开发的低粘度凝有效地调整了水库异质性,并增强了石油回收.
- 优化的凝和聚合物的顺序注射进一步提高了油的回收额外的3.12%.
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