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注水开发多年的具边水的普通稠油油藏的原油粘度高、流度比大 ,加之油藏非均质及边水入侵的影响 ,其注水开发效果较差。到含水高于 90 %时 ,仍有大部分原油未开采出来 ,因此 ,有必要转换开发方式 ,进一步提高采出程度。针对以上问题 ,应用黑油模型和热采模型 ,在对水驱阶段历史拟合和现代油藏工程评价的基础上 ,从筛选标准、吞吐试采产能及吞吐模拟等方面评价了注蒸汽热采的可行性 ,并用正交设计分析方法优选了吞吐注汽参数。结果表明 ,该类油藏由注水开发转为注蒸汽开采 ,可以有效地提高采出程度。这种设计方案为相似类型稠油油藏的开发提供了一套较为完善的借鉴方法。
Water flooding developed for many years with edge water common heavy oil reservoir of high viscosity, high flow ratio, combined with reservoir heterogeneity and the impact of edge water intrusion, the development of water less effective. When the water content is higher than 90%, most of the crude oil still remains undeveloped. Therefore, it is necessary to change the mode of development to further improve the recovery degree. In view of the above problems, based on the black oil model and the thermal recovery model, based on the history matching of the water flooding stage and the evaluation of the modern reservoir engineering, the steam injection steam thermal recovery was evaluated from the aspects of the screening standard, throughput capacity, throughput and throughput simulation The feasibility of using the orthogonal design and analysis of steam injection parameters optimization. The results show that this kind of reservoir is converted from injection water injection to steam injection injection, which can effectively increase the degree of recovery. This design provides a more complete reference for the development of similar types of heavy oil reservoirs.