利用Langmuir体积评估页岩中有机质孔隙尺寸的新方法

A New Organic Pore Size Estimation Approach for Gas Shale Using Langmuir Volume

依据Langmuir单层分子吸附原理,假设有机孔隙为圆柱型或球型规则孔隙,提出新的有机质孔隙尺寸定量评估方法。实例计算表明,该方法计算所得有机孔隙孔径与BET、BJH、t-plot孔径分析法以及Monte Carlo模拟法所评价的页岩有机孔隙尺寸接近,使用相对简单。

This paper according to the Langmuir monolayer adsorption principle, assuming the organic pore as spheri- cal or cylindrical shape, devetops a new organic matter pore size quantitative evaluation method using a Langmuir vol- ume. The calculation example shows that the result of this method is a same - order - of - magnitude value with BET, t -Plot and DFT analyses method and Monte Carlo simulations, which presents the reliability of the method.