A complete pore characteristic of the Indian Gondwana shale is studied by combining laboratory experiments and numerical modeling. Mercury injection capillary pressure (MICP), nitrogen gas adsorption (N₂GA) and scanning electron microscopy (SEM) are the primary laboratory methods used to evaluate the pore characteristics. The N₂GA and MICP were coupled to estimate the pore size distribution (PSD) of Indian Gondwana shale for the first time. The estimated PSD of Gondwana shale varies between 0.5 nm to 100 µm and most of the pores of the samples fall in the micropore and mesopore category. The porosity of Gondwana shale, measured using MICP, varies from 1.13 to 8.01%. The SEM micrographs and hysteresis pattern of isotherms reveal the presence of cylindrical, ink-bottle and slit shape pores in the samples. The BET (Brunauer-Emmett-Teller) surface area of pore for Gondwana shale varies from 3.42 m²/g to 21.5 m²/g. The FHH (Frenkel-Halsey-Hill) fractal model suggests that the Gondwana shale exhibits two types of fractal dimensions with highly complex pore geometry. The adsorption capacity of Gondwana shale is affected by the clay content. This paper attempted a different interpretation approach using experimental data and concluded that Indian Gondwana shale has high gas storage capacity.

通过结合实验室实验和数值模拟研究了印度冈瓦纳页岩的完整孔隙特征。汞注入毛细管压力（MICP），氮气吸附（N ₂ GA）和扫描电子显微镜（SEM）是用于评估孔特征的主要实验室方法。N ₂GA和MICP首次耦合以估算印度冈瓦纳页岩的孔径分布（PSD）。冈瓦纳页岩的估计PSD在0.5 nm至100 µm之间变化，并且样品的大部分孔隙属于微孔和中孔类别。使用MICP测量的冈瓦纳页岩孔隙度在1.13％至8.01％之间。等温线的SEM显微照片和磁滞图案揭示了样品中存在圆柱状，墨瓶状和狭缝状的孔。冈瓦纳页岩孔隙的BET表面积（Brunauer-Emmett-Teller）为3.42 m ² / g至21.5 m ²/G。FHH（Frenkel-Halsey-Hill）分形模型表明，冈瓦纳页岩表现出两种类型的分形维数，具有高度复杂的孔隙几何形状。冈瓦纳页岩的吸附能力受黏土含量的影响。本文尝试使用实验数据进行不同的解释方法，并得出结论，印度冈瓦纳页岩具有较高的储气能力。