Seminário: Revisiting the Classical Experiment on Earthquake Control at the Rangely Oil Field, Colorado, U.S, 1970: Insights from Coupled Flow and Geomechanical Modeling

28/03/2019 - 16:30
Auditório 1 do IAG (Rua do Matão, 1226, Cidade Universitária)

O Seminário do Departamento de Geofísica será apresentado por Josimar Alves da Silva Jr., doutorando do Massachusetts Institute of Technology - MIT.

The earthquake experiment conducted in the Rangely oil field, Colorado, in 1970, was pioneering in elucidating the correlation between wastewater injection and induced earthquakes. This correlation, in spite of the wealth of data collected during the experiment, has been established only qualitatively. Here, we revisit the Rangely experiment using a coupled flow and geomechanical model to quantitatively investigate why and how water injection in the oil field induced earthquakes not only near the injector wells but also away from them. Our modeling exercise provides insights into the value of the friction coefficient on slipping faults, and to make quantitative interpretations of induced vs. triggered seismicity from fluid injection in the subsurface.