EGS Collab project: Status, tests, and data

T. J. Kneafsey, P. F. Dobson, J. B. Ajo-Franklin, Y. Guglielmi, C. A. Valladao, D. A. Blankenship, P. C. Schwering, H. A. Knox, M. D. White, T. C. Johnson, C. E. Strickland, V. R. Vermuel, J. P. Morris, P. Fu, E. Mattson, G. H. Neupane, R. K. Podgorney, T. W. Doe, L. Huang, L. P. FrashA. Ghassemi, W. Roggenthen, J. Ajo-Franklin, S. J. Bauer, T. Baumgartner, K. Beckers, D. Blankenship, A. Bonneville, L. Boyd, S. Brown, S. T. Brown, J. A. Burghardt, T. Chen, Y. Chen, K. Condon, P. J. Cook, D. Crandall, T. Doe, C. A. Doughty, D. Elsworth, J. Feldman, A. Foris, Z. Frone, P. Fu, K. Gao, A. Ghassemi, H. Gudmundsdottir, Y. Guglielmi, G. Guthrie, B. Haimson, A. Hawkins, J. Heise, M. Horn, R. N. Horne, J. Horner, M. Hu, H. Huang, L. Huang, K. J. Im, M. Ingraham, R. S. Jayne, T. C. Johnson, B. Johnston, S. Karra, K. Kim, D. K. King, T. Kneafsey, H. Knox, J. Knox, D. Kumar, K. Kutun, M. Lee, K. Li, R. Lopez, M. Maceira, P. Mackey, N. Makedonska, C. J. Marone, E. Mattson, M. W. McClure, J. McLennan, T. McLing, C. Medler, R. J. Mellors, E. Metcalfe, J. Miskimins, J. Moore, J. P. Morris, S. Nakagawa, G. Neupane, G. Newman, A. Nieto, C. M. Oldenburg, W. Pan, T. Paronish, R. Pawar, P. Petrov, B. Pietzyk, R. Podgorney, Y. Polsky, J. Popejoy, S. Porse, B. Q. Roberts, M. Robertson, W. Roggenthen, J. Rutqvist, D. Rynders, H. Santos-Villalobos, M. Schoenball, P. Schwering, V. Sesetty, C. S. Sherman, A. Singh, M. M. Smith, H. Sone, F. A. Soom, C. E. Strickland, J. Su, D. Templeton, J. N. Thomle, C. Ulrich, N. Uzunlar, A. Vachaparampil, C. A. Valladao, W. Vandermeer, G. Vandine, D. Vardiman, V. R. Vermeul, J. L. Wagoner, H. F. Wang, J. Weers, J. White, M. D. White, P. Winterfeld, T. Wood, S. Workman, H. Wu, Y. S. Wu, Y. Wu, E. C. Yildirim, Y. Zhang, Y. Q. Zhang, J. Zhou, Q. Zhou, M. D. Zoback

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations


The EGS (Enhanced Geothermal Systems) Collab project is performing stimulation and flow experiments in highly-monitored and well-characterized intermediate-scale (approximately10 to 20 meter) field test beds at a depth of approximately 1,500 meters in the Sanford Underground Research Facility (SURF) in the Black Hills of South Dakota. Our fracture stimulation and interwell flow tests are performed to better understand processes that control formation of effective subsurface heat exchangers that are critical to the development and success of EGS. Different EGS Collab stimulations will be performed under dissimilar stress conditions to produce data for model comparisons that better differentiate stimulation mechanisms and the evolution of permeability enhancement in crystalline rock. EGS Collab experiments provide a means of testing tools, concepts, and strategies that could later be employed under geothermal reservoir conditions at DOE’s Frontier Observatory for Research in Geothermal Energy (FORGE) and other enhanced geothermal systems.

Original languageEnglish (US)
StatePublished - Jan 1 2019
Event53rd U.S. Rock Mechanics/Geomechanics Symposium - Brooklyn, United States
Duration: Jun 23 2019Jun 26 2019


Conference53rd U.S. Rock Mechanics/Geomechanics Symposium
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics

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