孤立缝洞系统排水找气数值模拟研究

RESEARCH ON THE NUMERICAL SIMULATION OF DRAINAGE GAS SURVEY IN AN ISOLA TED FRACTURE-CAVITY SYSTEM

基于对排水找气井地质模式及开采特征的认识 ,分析了排水找气数值模拟研究中如何进行数学模型的选取、初始化模型的建立 ,以及怎样以数值模拟为技术手段 ,研究排水找气井的渗流规律 ,包括排水找气井渗流地质模型的建立、生产参数的敏感性分析 。

On the basis of the knowledge of the geological model and producing characteristics of drainage gas survey well,how to choose th e mathematical model and the establishment of its initial model in the research on numerical simulation of drainage gas survey are analyzed in the paper.By taki ng the numerical simulation as a technical means,the percolation law and its inf luence factors of the drainage gas survey well are studied in the paper also,inc luding the establishment of percolation geological model of the drainage gas sur vey well and the sensitivity analysis of its producing parameters.