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| 低渗透油藏考虑注采比时不稳定渗流规律研究 | |
| 引用本文： | 尹洪军,梁旭,姜艳春. 低渗透油藏考虑注采比时不稳定渗流规律研究[J]. 特种油气藏, 2003, 10(5): 32-34 |
| 作者姓名： | 尹洪军 梁旭 姜艳春 |
| 作者单位： | 1. 大庆石油学院石油工程学院,黑龙江,大庆,163318 2. 中油吉林油田分公司,吉林,松原,138000 3. 中油大庆油田有限责任公司,黑龙江,肇东,151100 |
| 摘 要： | 针对低渗透油藏注采比高的实际情况，建立考虑启动压力梯度和注采比因素的均质油藏不稳定渗流数学模型，并运用数值方法求解，绘制并分析了井底压力动态曲线。研究表明，启动压力梯度和注采比对不稳定压力动态影响较大。在低渗透油藏测试资料分析中考虑其影响是十分必要的。 |
| 关 键 词： | 低渗透油藏 注采比 不稳定渗流 渗流规律 压力梯度 数学模型 |
| 文章编号： | 1006-6535(2003)05-0032-03 |
| 修稿时间： | 2003-02-28 |
Study on transient flow regularity in low permeability reservoirs with consideration of injection - production ratio |
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| YIN Hong - jun,LIANG Xu,JIANG Yan - chun. Study on transient flow regularity in low permeability reservoirs with consideration of injection - production ratio[J]. Special Oil & Gas Reservoirs, 2003, 10(5): 32-34 | |
| Authors: | YIN Hong - jun LIANG Xu JIANG Yan - chun |
| Abstract: | In accordance with the high injection - production ratio in low permeability reservoirs, a transient flow mathematical model for homogeneous reservoir has been established with consideration of threshold pressure gradient and injection - production ratio. The model can be solved by numerical method. Bottom hole pressure curves are provided and analyzed. The study shows that threshold pressure gradient and injection - production ratio have remarkable effect on transient pressure. It is necessary to consider these factors in well test analysis of low permeability reservoirs. |
| Keywords: | low permeability reservoir transient flow regularity injection- production ratio threshold pressure gradient mathematical model |
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