%0 Dataset
%T Data set of tight sandstone fracturing injection pressure time curve
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/dd2825ec-3cc8-4f24-bf2f-461ed1b18df8
%W NCDC
%R 10.12072/ncdc.nieer.db2793.2023
%A None
%K CT scanning;nuclear magnetic resonance;multi-scale analysis
%X <p>   The fracturing mechanism of liquid CO2 fracturing under different confining pressures on micro pores, fractures and macro fractures of the rock. The liquid CO2 fracturing test and hydraulic fracturing test were conducted on tight sandstone. Three methods, CT scanning, 3D fracture morphology scanning and nuclear magnetic resonance measurement, were used to identify the pore and crack characteristics of the fracture samples from the micro to the macro. Fracturing stress time, nuclear magnetic resonance T2 spectrum and CT scanning crack initiation data are mainly recorded.