沁水盆地3#煤层气井三维数值模拟

THREE DIMENSIONAL NUMERICAL SIMULATION OF 3# COAL BED METHANE WELL IN QINSHUI BASIN

在建立沁水盆地3#煤层气井煤层气运移产出地质概念模型的基础上,采用Langmuir等温吸附定律,Fick第一定律和多相渗流理论建立了与之相适应的三维数学模型,并通过历史拟合计算,校正、识别了模型中的有关重要参数,预测了3#煤层气井单井开采及井网优化开采时的气、水产量。

Based on the conceptual model of coal bed methane migration and production of 3# coal bed methane well in Qinshui basin, Langmuir's adsorption isotherm theorem, Fick's first law and multiphase flow theory have been used to establish the three dimensional mathematical model, and calibrated the important parameter of the model by history matching,forecasting the yield of the coal bed methane and water of 3# coal bed methane well, respectively, when 3# coal bed methane well is pumped singly and the well network is pumped simultaneously.