【摘要】 本文根据不同温度下实测的等温吸附数据,以吸附势理论为指导,首先建立吸附特性曲线及其数学表达式,在已知一组等温吸附数据时计算任一温度下的吸附等温数据,为储层条件下的含气量预测提供了方法。柳林、阜新和沁水盆地东南部煤的等温吸附实验数据说明吸附势理论完全可以运用到描述煤这种特殊的非极性碳质材料对甲烷的吸附。更多还原

【Abstract】 Based on the measured isotherm data under different temperature on the coal collected from Liulin coal district, the adsorption characteristic curve can be drawn and is described with an experimental equation in this paper. If one isotherm is measured, the coal adsorption capacity under any temperature and pressure can be calculated by using the characteristic curve and adsorption equation. This is an approach for the prediction of coalbed gas content under reservoir ambient. The adsorption theory can be successfully applied to describe the methane adsorption on coal, which is confirmed by the isotherm data measured on coal collected from Liulin, Qinshui Basin and Fuxin Basin.更多还原