考虑气体滑脱效应的低渗透气藏非达西渗流数学模型  

NON-DARCY FLOW MATHEMATICAL MODEL FOR LOW-PERMEABILITY GAS RESERVOIRS CONSIDERING GAS SLIPPPAGE EFFECT

作　　者：苗顺德[1] 吴英[2] 

机构地区：[1]中国地质大学 [2]中海油田服务股份有限公司

出　　处：《天然气勘探与开发》2007年第3期45-48,78,共4页Natural Gas Exploration and Development

摘　　要：对室内物理模拟气体驱替岩心实验数据进行处理,研究了一种确定低渗气藏气体渗流克林肯贝尔常数和非达西系数的新方法。通过回归分析实验数据,得到克林肯贝尔常数与地层平均渗透率关系式,并绘制了求解其大小的理论图版,由此建立了气、水两相非达西渗流数学模型。The experimental data obtained from lab physics simulation of gas displacing core is processed and a new calculation method of Kelinberg constant and non-Darcy coefficient is developed for low-permeability gas reservoirs. With the regression analysis of the experimental data, the relationship between Kelinberg constant and formation average permeability is obtained and the theoretical chart board is made to calculate the constant. So, the non-Darcy flow mathematical model in gas/ water two phase is established.

关 键 词：低渗气藏 滑脱效应 非达西渗流 

分 类 号：TE312[石油与天然气工程—油气田开发工程]