| 特低渗透油藏驱替特征 |
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| 引用本文： | 苏玉亮,李涛.特低渗透油藏驱替特征[J].辽宁工程技术大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 苏玉亮 李涛 |
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| 作者单位： | 中国石油大学(华东)石油工程学院; |
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| 基金项目： | 泰山学者建设工程专项基金项目资助 |
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| 摘 要： | 为了深入研究特低渗透油藏水驱油的渗流规律,建立了考虑启动压力梯度的一维油水两相驱替数学模型并进行数值求解,分析了启动压力梯度和渗透率的非均匀分布对特低渗透油藏驱替特征的影响。计算结果表明:启动压力梯度的存在导致平均含水饱和度降低和地层压力升高,驱替效率降低;渗透率从小到大驱替时驱替效果更好。该成果为特低渗透油藏的合理开发提供理论指导。
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| 关 键 词： | 特低渗透 启动压力梯度 非达西渗流 驱替特征 |
Characteristics of displacement in extremely low permeability reservoir |
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| SU Yuliang,LI Tao.Characteristics of displacement in extremely low permeability reservoir[J].Journal of Liaoning Technical University (Natural Science Edition),2009(Z1). |
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| Authors: | SU Yuliang LI Tao |
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| Institution: | SU Yuliang,LI Tao(School of Petroleum Engingeering,China University of Petroleum,Dongying 257061,China) |
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| Abstract: | Based on the research results of the seeping regular pattern,a linear dimension water-oil displacement mathematics model considering threshold pressure gradient which describes extremely low permeability reservoir is established and numerical resolution,finally analyzing the influence of treshold pressure gradient and permeability linear distribution on the displacement chaeacteristics of extremely low permeability reservoir.Computational solution indicates that threshold pressure gradient causes average wa... |
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| Keywords: | extremely low permeability reservoir threshold pressure gradient non-Darcy seeping displacement characteristics |
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