To investigate the interaction between coal and fracturing fluid and its influence on the pore structures of the coal, three commonly used water-based fracturing fluids were selected and used to treat Illinois coal. A series of low-temperature nitrogen ad-/desorption experiments and nuclear magnetic resonance measurements were conducted to comparatively analyse the evolution of the coal pore structure after treatment. The results show that the intrusion of the water-based fracturing fluid reduces the pore volume and pore area of the coal. In addition, the residue of the VES fracturing fluid may change the shape of the ink-bottled pores of coal. The evolution of the fractal dimension of the coal pore system after fracturing-fluid treatment illustrated that the residue of the fracturing fluid may adhere primarily to the relatively rough region of the pore wall. There is no significant chemical reaction between the water-based fracturing fluids and the Illinois coal.

为了研究煤与压裂液之间的相互作用及其对煤孔隙结构的影响，选择了三种常用的水基压裂液并用于处理伊利诺伊州的煤。进行了一系列的低温氮吸附/脱附实验和核磁共振测量，以比较分析处理后煤孔结构的演变。结果表明，水基压裂液的侵入降低了煤的孔隙体积和孔隙面积。此外，VES压裂液的残留物可能会改变煤的装墨孔的形状。压裂液处理后煤孔隙系统分形维数的演变表明，压裂液的残余物可能主要粘附在孔隙壁的相对粗糙区域。水性压裂液与伊利诺伊州的煤之间没有明显的化学反应。