【摘要】 为了探究页岩储层中3种黏土矿物对CH₄的吸附机理,运用Materials Studio软件分别对3种黏土矿物进行蒙特卡洛模拟。模拟结果表明:在相同温度和压力条件下3种黏土矿物对CH₄的吸附量大小顺序是蒙脱石>伊蒙混层>伊利石;吸附量随埋深的増加先增大后减小,且在3 km时达到最高;3种黏土矿物的吸附热均小于42 k J/mol,对CH₄的吸附为物理吸附。更多还原

【Abstract】 In order to explore the adsorption mechanism of CH₄ in three kinds of clay minerals under shale reservoirs, Monte Carlo simulation for three kinds of clay minerals is carried out by using Materials Studio simulation software.The simulation results show that the order of adsorption of three kinds of clay minerals in the same temperature and pressure is montmorillonite >I/S mixed-layer> illite.The adsorbed amount tends to increases then decreases with the increase of buried depth, and reaches the maximum value at 3 km. The adsorption heat of three kinds of clay minerals is less than 42 k J/mol,so the adsorption of CH₄ is physical.更多还原