| 摘要: |
| 将渗流雷诺数作为非达西流产生的判定条件，基于油藏数值模拟方法，对油水两相渗流中非线性流产生条件 及影响因素进行系统分析。研究表明:油水两相渗流中非线性流产生的条件苛刻，它只会在特高含水开发后期油藏 中的高渗层或大孔道层中出现,对水驱油总体开发规律影响较小;油藏中高渗层或大孔道层的厚度对非线性渗流的 产生及分布影响最大。 |
| 关键词: 水驱 非线性流 非达西流 特高含水期 影响因素 |
| DOI： |
| 分类号: |
| 基金项目:国家“863”计划资助项目(2003AA602140) |
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| Generating condition of non-linear flow in water-flooding reservoir at ultra-high water-cut stage |
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ZHANG Xian-song
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(CNOOC Research Center, Beijing 100027，China)
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| Abstract: |
| Based on numerical reservoir simulation method and taking Reynold's number of flow as the criteria of non-Darcy flow，systematic analysis of non-linear flow generating condition and influence factors was performed for oil-water two-phase flow. It is indicated that the generating conditions of non-linear flow for two-phase flow are very exacting, which only occur in high-permeability layers or the layers with high capacity channels at the late development stage of ultra-high water cut. And the non-linear flow has little effect on integral development rules. The thickness of high-permeability layers or the layers with high capacity channels has a great effect on the generation and distribution area of non-linear flow. |
| Key words: water flooding non-linear flow non-Darcy flow ultra-high water-cut stage influence factor |
