E3S Web Conf.
Volume 205, 20202nd International Conference on Energy Geotechnics (ICEGT 2020)
|Number of page(s)||6|
|Section||Hydraulic Fracturing and Unconventional Hydrocarbons|
|Published online||18 November 2020|
Experimental hydraulic fracturing of Berea sandstone under triaxial stress state
1 Department of Mechanical Engineering, Khalifa University of Science and Technology, P.O.Box 127788, Abu Dhabi, United Arab Emirates
2 Department of Civil Infrastructure and Environmental Engineering, Khalifa University of Science and Technology, P.O.Box 127788, Abu Dhabi, United Arab Emirates
3 Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, New Jersey, United States of America
In this work, a newly designed experimental setup is used to perform in-lab fracking under controlled triaxial loading on cylindrical cores of Berea sandstone. Fracking tests are conducted at 10 MPa confining pressure, with vertical compressive loading, as well as two horizontal stresses that simulate reservoir triaxial stress state. Multiple injection scenarios are tested to investigate the effect of the pore fluid injection conditions on the fracking and failure mechanisms. In-situ micro-seismic monitoring via eight acoustic emissions sensors is used for logging the fracking events evolution with time. Post-experimental characterization included computational tomography (CT) scanning to characterize the resulting fracture patterns.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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