Analysis of pressure/flow response data from the EGS Collab Project

M. D. Ingraham, H. A. Knox, C. E. Strickland, V. R. Vermeul, J. A. Burghardt, J. Ajo-Franklin, S. J. Bauer, T. Baumgartner, K. Beckers, D. Blankenship, A. Bonneville, L. Boyd, S. T. Brown, J. A. Burghardt, T. Chen, Y. Chen, K. Condon, P. J. Cook, P. F. Dobson, T. DoeC. A. Doughty, D. Elsworth, J. Feldman, A. Foris, L. P. Frash, Z. Frone, P. Fu, K. Gao, A. Ghassemi, H. Gudmundsdottir, Y. Guglielmi, G. Guthrie, B. Haimson, A. Hawkins, J. Heise, C. G. Herrick, M. Horn, R. N. Horne, J. Horner, M. Hu, H. Huang, L. Huang, K. Im, M. Ingraham, 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, N. Makedonska, C. Marone, E. Mattson, M. W. McClure, J. McLennan, T. McLing, R. J. Mellors, E. Metcalfe, J. Miskimins, J. P. Morris, S. Nakagawa, G. Neupane, G. Newman, A. Nieto, C. M. Oldenburg, W. Pan, R. Pawar, P. Petrov, B. Pietzyk, R. Podgorney, Y. Polsky, S. Porse, S. Richard, B. Q. Roberts, M. Robertson, W. Roggenthen, J. Rutqvist, D. Rynders, H. Santos-Villalobos, M. Schoenball, P. Schwering, V. Sesetty, A. Singh, M. M. Smith, H. Sone, C. E. Strickland, J. Su, 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, H. Wu, Y. S. Wu, Y. Wu, Y. Zhang, Y. Q. Zhang, J. Zhou, Q. Zhou, M. D. Zoback

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Abstract

A series of fracture and flow tests are being performed at the Sanford Underground Research Facility (SURF) as part of the EGS Collab project. The tests involve generating a communicating fracture(s) between two boreholes, and monitoring flow through the generated fracture(s). A long-term flow test was performed at the end of October 2018 through early November of 2018 between the injection and production wells at the EGS Collab site on the 4850 Level of SURF. This paper will present an analysis of the pressure, and flow during this test. Analysis and interpretation of the variation in the efficiency of the connection as the injection conditions changed is presented. Recovery of injected fluid is between 70 and 85%. Injection conditions varied from constant pressure, to constant rate, with formation induced pressure rise at constant flow rate, and multiple flush cycles to induce pressure decrease from apparent fracture plugging.

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

Conference

Conference53rd U.S. Rock Mechanics/Geomechanics Symposium
Country/TerritoryUnited States
CityBrooklyn
Period06/23/1906/26/19

Funding

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government. SAND2019-XXXX This material was based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development, Geothermal Technologies Office, under Award Number DE-NA0003525 with Sandia National Laboratories. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The research supporting this work took place in whole or in part at the Sanford Underground Research Facility in Lead, South Dakota. The assistance of the Sanford Underground Research Facility and its personnel in providing physical access and general logistical and technical support is acknowledged. This material was based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), Office of Technology Development, Geothermal Technologies Office, under Award Number DE-NA0003525 with Sandia National Laboratories. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The research supporting this work took place in whole or in part at the Sanford Underground Research Facility in Lead, South Dakota. The assistance of the Sanford Underground Research Facility and its personnel in providing physical access and general logistical and technical support is acknowledged. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government. SAND2019-XXXX

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