致密砂岩压裂注入压力-时间曲线数据集

岩在不同围压条件下的液体CO2压裂对微观孔隙和裂缝以及宏观裂缝的压裂机理，对致密砂岩进行了液体CO2压裂试验和水压裂试验。该数据集采用CT扫描、三维断口形貌扫描和核磁共振测量三种方法，从微观到宏观对断口试样的孔隙和裂纹特征进行了识别。主要记录了压裂应力-时间、核磁共振T2谱和CT扫描起裂数据。

Tests of liquid CO₂ fracturing and hydraulic fracturing were conducted on tight sandstones to investigate the fracturing mechanism of liquid CO₂ fracturing on micro-pores, micro-cracks and macro-cracks under different confining pressures. This dataset identifies the pore and crack characteristics of fractured specimens from microscale to macroscale using three methods: CT scanning, 3D fracture morphology scanning, and nuclear magnetic resonance (NMR) measurement. It mainly records fracturing stress-time data, nuclear magnetic resonance T2 spectra, and CT scanning crack initiation data.