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Utah FORGE: Engineering an Enhanced Geothermal System

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Course Credit: 0.15 CEU, 1.5 PDH

The U.S. Department of Energy’s (U.S. DOE) Frontier Observatory for Research in Geothermal Energy (FORGE) is a field laboratory for developing and testing new technologies for characterizing, creating, and sustaining Enhanced Geothermal Systems (EGS) in a controlled environment.

In 2018, the U.S. DOE selected a site near Milford, Utah, for the FORGE laboratory. The location met the criteria of adequate and accessible subsurface temperature with benign seismicity and appropriate environmental attributes. Since its inception, multiple vertical monitoring wells -for geophone emplacement – have been drilled, along with a 65° lateral.

This inclined well, 16A(78)-32, drilled in late 2020, was stimulated in three stages near its toe during April 2022. A second inclined well will be drilled in early 2023 to penetrate microseismic clouds from these treatments. These three stages will test open hole versus cased-perforated completions, low viscosity versus “temperature-tolerant” higher viscosity fluids, temperature tolerant isolation and perforation technologies, and an assessment of the role of natural fractures during stimulation in crystalline formations. Areas of technology development are highlighted including cementing, isolation, treatment strategies, conductivity and connectivity development, and challenges related to conformance and immunity to undesirable seismicity.

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Course Chapters

  • 1Utah FORGE: Engineering an Enhanced Geothermal System - Chapter 1
    Media Type: Video

Credits

Earn credits by completing this course0.15 CEU credit1.5 PDH credits

Speakers

David Curry
John McLennan