Colorado School of Mines Civil and Environmental Engineering Professor Marte Gutierrez, Petroleum Engineering Professor Azra Tutuncu and alumnus Luke Frash have been awarded the 2017 Applied Rock Mechanics Research Award by the American Rock Mechanics Association.
|Luke Frash and Marte Gutierrez showcase their research during a visit from Darren Mollot, Director of the Office of Clean Energy Systems in the Department of Energy’s (DOE) Office of Fossil Energy.|
Frash earned bachelor’s and master’s degrees in engineering with specialties in civil engineering and a PhD in civil and environmental engineering from Mines, studying under Gutierrez. He is now a researcher at Los Alamos National Laboratory in New Mexico.
The team is receiving the award for their 2015 publication, “True-Triaxial Hydraulic Fracturing of Niobrara Carbonate Rock as an Analogue for Complex Oil and Gas Reservoir Stimulation.” The main topics of research, funded partially by the U.S. Department of Energy and the Unconventional Natural Gas and Oil Institute, were development of enhanced geothermal systems and hydraulic fracturing in shale oil and gas reservoirs.
“Well stimulation by hydraulic fracturing is a common method for increasing the injectivity and productivity of wells,” Gutierrez said. “This method is beneficial for many applications, including oil, gas, geothermal energy and CO2 sequestration; however, hydraulic fracturing in shale and other similarly complex geologies remains poorly understood.”
Seeking to bridge the gap in understanding, the team conducted research on large natural rock specimens using true-triaxal stresses, intended to represent field-scale complexities of known oil and gas reservoirs.
“Results from such large-scale hydraulic experiments, particularly on naturally heterogeneous rock samples, remain very limited,” Gutierrez said.
The research team developed special equipment to conduct these innovative field-scale experiments, and Gutierrez says “the results from the scale-model hydraulic fracturing experiments are envisioned to be of important value to the practice of hydraulic fracturing in several fields.”
The award will be presented during the 51st U.S. Rock Mechanics/Geomechanics Symposium in San Francisco, California, on June 25-28, 2017.
Support for the research was provided by the Unconventional Natural Gas and Oil Institute (UNGI) Coupled Integrated Multi Scale Measurements and Modeling Consortium (CIMMM), and the U.S. Department of Energy under DOE Grant No. DE-FE0002760, “Development and Validation of an Advanced Stimulation Prediction Model for Enhanced Geothermal Systems.”