Experimental study on fracture propagation induced by supercritical CO2 jet fracturing in artificial samples with prefabricated bedding planes

2019 ◽  
Vol 72 ◽  
pp. 103037
Author(s):  
Jiawei Liu ◽  
Yi Hu ◽  
Yong Kang ◽  
Hao Chen ◽  
Yiwei Liu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Supercritical Co2 ◽  
Fracture Propagation ◽  
Bedding Planes

scholarly journals Experimental study of gravitational mixing of supercritical CO2

2018 ◽  
Vol 71 ◽  
pp. 62-73 ◽  
Author(s):  
Dennis L. Newell ◽  
J. William Carey ◽  
Scott N. Backhaus ◽  
Peter Lichtner
Keyword(s):  
Experimental Study ◽  
Supercritical Co2

Experimental study of supercritical CO2 leakage behavior from pressurized vessels

Energy ◽  
2018 ◽  
Vol 150 ◽  
pp. 342-350 ◽  
Author(s):  
Xing Fan ◽  
Yangle Wang ◽  
Yuan Zhou ◽  
Jingtan Chen ◽  
Yanping Huang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Supercritical Co2 ◽  
Co2 Leakage

scholarly journals Hydromechanical-Coupled Cohesive Interface Simulation of Complex Fracture Network Induced by Hydrofracturing with Low-Viscosity Supercritical CO2

Lithosphere ◽  
2021 ◽  
Vol 2021 (Special 1) ◽  
Author(s):  
Xin Cai ◽  
Wei Liu
Keyword(s):  
Hydraulic Fracturing ◽  
Supercritical Co2 ◽  
Fracture Propagation ◽  
Zone Model ◽  
Hydraulic Pressure ◽  
Small Aperture ◽  
Complex Fracture ◽  
Low Viscosity ◽  
Fracturing Fluids ◽  
Low Viscosity Fluids

Abstract Hydraulic fracturing experiments with low-viscosity fluids, such as supercritical CO2, demonstrate the formation of complex fracture networks spread throughout the rocks. To study the influence of viscosity of the fracturing fluids on hydraulic fracture propagation, a hydromechanical-coupled cohesive zone model is proposed for the simulation of mechanical response of rock grains boundary separation. This simulation methodology considers the synergistic effects of unsteady flow in fracture and rock grain deformation induced by hydraulic pressure. The simulation results indicate a tendency of complex fracture propagation with more branches as the viscosity of fracturing fluids decrease, which is in accord with experimental results. The low-viscosity fluid can flow into the microfractures with extremely small aperture and create more shear failed fracture. This study confirms the possibility of effective well stimulations by hydraulic fracturing with low-viscosity fluids.

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