Air foam flooding effect evaluation system based on injection-production well group connectivity analysis
By analyzing the connectivity of injection and production well groups, an effective connectivity matrix was constructed and the trap gas resistance effect was corrected. This solved the problem of dynamic evolution of reservoir connectivity in the air foam flooding evaluation system, enabling accurate evaluation of the air foam flooding effect and improvement of reservoir recovery.
CN122412892APending Publication Date: 2026-07-17XIAN PETROLEUM DASHI TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XIAN PETROLEUM DASHI TECH CO LTD
- Filing Date
- 2026-06-15
- Publication Date
- 2026-07-17
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Figure CN122412892A_ABST
Abstract
本发明涉及采油领域，尤其涉及基于注采井组连通度分析的空气泡沫驱效果评价系统，该系统包括：数据获取模块，用于获取目标油藏不同储层对应的储量表征数据、储层结构数据以及空气泡沫驱注采数据；储层特征分析模块，用于分析不同储层对应的储量贡献以及构建相邻储层之间的有效连通矩阵；退化特征分析模块，用于分析不同储层对应的连通退化特征；衰减特征分析模块，用于分析不同储层与主油层之间的垂向波及能力衰减特征；效果预警模块，用于分析空气泡沫驱过程中不同储层对主油层协同驱替能力的变化情况，并进行空气泡沫驱效果预警。本发明通过对空气泡沫驱效果恶化趋势进行预警，有效保障了空气泡沫驱的协同驱替效果以及油藏整体采收率。
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