A full-size fracture of tight sandstone induced by water, N2 and CO2

Bing Yang & Bin Wang
The tight sandstone samples collected from Yanchang oil field , China are used to conduct hydraulic fracturing experiment with fluid of water, N2 and CO2. These samples are scanned by Micro-CT scanning pre and post-hydraulic fracturing experiment. All of the images are obtained on the resolution ( voxel size ) of 53 μm under working voltage of 120 KV and current of 62.5 μA. After rock was scanned, the whole-size fracture can be extracted through...
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