计算力学学报2011，Vol.28Issue(6)：879-883,5.
动边界双重介质油藏低速非达西渗流试井模型
Well test analysis on low velocity and non-Darcy flow in dual-porosity reservoir with dynamic boundary
摘要
Abstract
The permeability of matrix is generally low in naturally fractured reservoirs. A large number of core test results indicate that the liquid flow and the gas flow with a certain degree of water saturation in matrix have deviated from the Darcy flow, and often show low-speed and non-Darcy characteristics. Besides, the phenomenon of threshold pressure gradient and flow boundary expanding appears. In this paper, a well test model is presented in the slightly compressible dual-porosity reservoir with low velocity and non-darcy percolation; it fully considers the impact of the threshold pressure gradient and the dynamic boundary. By discretizing time and spatial variables, this model can be solved by numerical method. Use this model, it is studied the pressure-transient characteristics and the influencing factors, the typical well test curves effected by storage capacity ratio and inter-aquifer flow factor in constant pressure external boundary reservoirs have been drawn, and the propagation rule of the dynamic boundary has been analyzed too.关键词
双重介质/动边界/非达西/启动压力梯度Key words
dual porosity/dynamic boundary/non-Darcy/threshold pressure gradient分类
数理科学引用本文复制引用
程林松,任胜利,廉培庆..动边界双重介质油藏低速非达西渗流试井模型[J].计算力学学报,2011,28(6):879-883,5.基金项目
国家自然科学基金 （）
教育部高等学校博士学科点专项科研基金 （）
教育部新世纪优秀人才支持计划（NCET-05-0108）资助项目. （）
