Abstracts Book - IMRC 2018

• SD2-P001
PHYSICAL ASPECTS AND MODELING OF THE FRACTURE IN ROCKS
AND CEMENTITIOUS MATERIALS
Omar Rodriguez Villarreal 1,2
1 Universidad Autónoma de Nuevo León, Facultad de Ingeniera Civil, Mexico. 2 Universite de pau
et des pays de ladour, Institut Supérieur Aquitain du Bâtiment et des Travaux Publics, France.
The purpose of this research is to study the fracture surfaces of a complex
network of fractures generated by means of hydraulic fracture or hydrostatic
pressure under conditions presented in an Enhanced Geothermal System
(EGS). Fractures generated by hydrostatic pressure are a particular class of
mode I tensile fractures, which grow by the coalescence of micro-cracks. By
studying this type of fracturing process, it is possible to improve the
performance of a geothermal field. The present work will focus on rocks typical
of geothermal reservoirs, shale and limestone rocks, as well as concrete and
mortar since we can refer to these composite materials as synthetic rocks. We
will study the effects of the internal structure of the material, the confinement
stress, temperature and fluid injection flow rate on the mechanical properties
of rock formation, (i.e., tensile and compression strength, fracture energy, etc.),
the geometry of the fracture network generated, the roughness of such
fractures and the acoustic emission during the hydraulic fracture.
Keywords: Fracture, Andesite rock and concrete, Enhanced Geothermal System
Presenting authors email: omar_rdzv@hotmail.com