| 低渗多孔介质非达西渗流启动压力梯度存在判识 |
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| 引用本文： | 任晓娟,张国辉,缪飞飞.低渗多孔介质非达西渗流启动压力梯度存在判识[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： | 任晓娟 张国辉 缪飞飞 |
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| 作者单位： | 西安石油大学石油工程学院;大庆油田有限责任公司勘探开发研究院; |
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| 摘 要： | 针对低渗油层非达西渗流规律研究及启动压力梯度预测对低渗油层的开发具有重要的意义,对大量实测的低渗储层岩心单相油和单相水渗流曲线进行了拟合及理论分析。结果表明:通过实验拟合得到的渗流方程,能很好的反映低渗非达西渗流规律;同时,应用边界层理论,论证了拟合方程的合理性及方程中各系数的物理意义,在此基础上,提出了低渗储层存在启动压力梯度的临界平均孔喉最大值半径判据,研究表明:该判据的判别结果与实验结果一致。
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| 关 键 词： | 低渗储层 非达西渗流 启动压力梯度 边界层 |
Criterion of starting pressure gradient existence of non-Darcy flowing in low permeability porous media |
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| REN Xiaojuan,ZHANG Guohui,MIAO Feifei.Criterion of starting pressure gradient existence of non-Darcy flowing in low permeability porous media[J].Journal of Liaoning Technical University (Natural Science Edition),2009(Z1). |
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| Authors: | REN Xiaojuan ZHANG Guohui MIAO Feifei |
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| Abstract: | It is very important to research non-darcy flowing and predict starting pressure gradient for developing low permeability reservoirs.The paper analyzes and matches a lot of the results of experiments of the single oil and water phase flow curves of low permeability cores.Research results show that(1)The new matching equation can response the law of non-Darcy flowing of low permeability media very well;(2) the reasonableness of the matching equation and the physical meaning of coefficients in the equation is... |
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| Keywords: | low permeability reservoir non Darcy flowing starting pressure gradient boundary layer |
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