油库转换为地下天然气储存期间的阶段行为和质量转移:对储存能力和回收效率的影响
Debin Kong1,2, Yongheng Wang1,2, Xingxing Yang1,2
1China-Zambia Belt and Road Joint Laboratory on Green and Safe Development of Mineral Resources, University of Science and Technology Beijing, Beijing 100083, P. R. China.
ACS omega
|February 23, 2026
概括
这项研究研究了石油储库转换为地下天然气储存 (UGS) 的阶段行为. 循环注入-提取实验揭示了质量转移如何演变,影响石油回收和储存能力.
科学领域:
- 石油工程是石油工程中的一个.
- 地质工程是地质工程.
- 储水库工程 储水库工程
背景情况:
- 在周期性条件下将油库转换为地下天然气储存 (UGS) 的阶段行为研究是有限的.
- 转换期间的相间质量转移动态是复杂的,并且不断演变.
研究的目的:
- 调查油库逐步转换为UGS的阶段性行为.
- 在循环注入-撤回条件下量化相间质量转移机制.
- 为优化UGS操作参数提供见解.
主要方法:
- 进行了高压/高温 (HP/HT) 可视化实验.
- 采用了模仿储转换为UGS的多阶段协议,包括耗尽和六个注射-提取周期.
- 引入了净质量转移 (NMT) 和净质量转移率 (NMRT) 来量化相间机制.
主要成果:
- 确定了三个不同的阶段:耗尽,滚动储存建设 (1-4周期) 和后期建设 (5-6周期).
- 在注射和抽取周期期间观察到不同的质量转移行为 (凝结/溶解与蒸发/提取).
- 在六个循环后,实现了56.02%的累积石油回收和68.6%的气体储存容量的孔积.
结论:
- 循环智能质量转移显著地控制了水库到UGS转换期间的相位行为演变.
- 了解这些动态对于优化操作参数至关重要.
- 该研究为评估水库适用于UGS转换提供了一个框架.
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