蒸汽室的多阶段开发过程和模型,用于在重油储中生产SAGD,并具有层间层
Ren-Shi Nie1, Qingqiang Jiang2, Yimin Wang3
1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, Sichuan, China. nierenshi2000@126.com.
Scientific reports
|May 1, 2024
概括
这项研究模拟了油砂中蒸汽室的发展,使用具有间层的蒸汽辅助重力排水 (SAGD). 一个多阶段模型准确地预测了石油生产率,提高了重油回收效率.
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:
- 蒸汽辅助重力排水 (SAGD) 是重油的关键热回收方法.
- 储水池中的间层显著影响SAGD蒸汽室的发展.
- 了解这些影响对于优化石油生产至关重要.
研究的目的:
- 分析SAGD中蒸汽室发展的多阶段物理过程.
- 开发一个可靠的模型来预测SAGD在层间条件下的性能.
- 为加强重油和油砂开采提供框架.
主要方法:
- 将蒸汽室的发展划分为五个阶段 (I-V),并进一步细分阶段II和IV.
- 建立不同阶段蒸汽室的几何模型 (圆和反向三角形).
- 根据这些模型,根据蒸汽室前部距离和石油生产率的推算公式.
主要成果:
- 这项研究确定并描述了蒸汽室发育的五个不同的阶段,这些阶段受到间层的影响.
- 对于SAGD生产速度和蒸汽室进展的理论公式.
- 通过两个案例研究验证了该模型,显示了理论和实际石油生产之间的良好一致性.
结论:
- 拟议的多阶段蒸汽室开发模型是可靠的,并且对具有间层的水库中的SAGD有用.
- 该模型增强了SAGD性能的理解和预测,从而改善了重油回收.
- 这些发现支持在复杂的地质构造中优化SAGD操作.
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