TY - GEN
T1 - EGS Collab Earth modeling
T2 - Geothermal Resources Council 2019 Annual Meeting - Geothermal: Green Energy for the Long Run, GRC 2019
AU - The EGS Collab Team
AU - Neupane, Ghanashyam
AU - Podgorney, Robert K.
AU - Huang, Hai
AU - Mattson, Earl D.
AU - Kneafsey, Timothy J.
AU - Dobson, Patrick F.
AU - Schoenball, Martin
AU - Ajo-Franklin, Jonathan B.
AU - Ulrich, Craig
AU - Schwering, Paul C.
AU - Knox, Hunter A.
AU - Blankenship, Douglas A.
AU - Johnson, Timothy C.
AU - Strickland, Christopher E.
AU - Vermeul, Vince R.
AU - White, Mark D.
AU - Roggenthen, William
AU - Uzunlar, Nuri
AU - Doe, Thomas W.
AU - Ajo-Franklin, J.
AU - Baumgartner, T.
AU - Beckers, K.
AU - Blankenship, D.
AU - Bonneville, A.
AU - Boyd, L.
AU - Brown, S.
AU - Brown, S. T.
AU - Burghardt, J. A.
AU - Chen, T.
AU - Chen, Y.
AU - Condon, K.
AU - Cook, P. J.
AU - Crandall, D.
AU - Doe, T.
AU - Doughty, C. A.
AU - Elsworth, D.
AU - Feldman, J.
AU - Foris, A.
AU - Frash, L. P.
AU - Frone, Z.
AU - Fu, P.
AU - Gao, K.
AU - Ghassemi, A.
AU - Gudmundsdottir, H.
AU - Guglielmi, Y.
AU - Guthrie, G.
AU - Haimson, B.
AU - Hawkins, A.
AU - Heise, J.
AU - Marone, C. J.
N1 - Funding Information:
The research supporting this work took place in whole or in part at the Sanford Underground Research Facility in Lead, South Dakota. Funding for this work is supported by the Office of Science of the Department of Energy under Contract Number DE-AC07-05ID14517 with Idaho National Laboratory. The assistance of the Sanford Underground Research Facility and its personnel in providing physical access and general logistical and technical support is acknowledged. Data related to geology and mine geometry were provided by Kathy Hart (Sanford Underground Research Facility/South Dakota School of Mines and Technology). The earth model output for this paper was generated using Leapfrog Software.
Funding Information:
The research supporting this work took place in whole or in part at the Sanford Underground Research Facility in Lead, South Dakota. Funding for this work is supported by the Office of Science of the Department of Energy under Contract Number DE-AC07-05ID14517 with Idaho National Laboratory. The assistance of the Sanford Underground Research Facility and its personnel in providing physical access and general logistical and technical support is acknowledged. Data related to geology and mine geometry were provided by Kathy Hart (Sanford Underground Research Facility/South Dakota School of Mines and Technology). The earth model output for this paper was generated using Leapfrog Software. Copyright © Seequent Limited. Leapfrog and all other Seequent Limited product or service names are registered trademarks or trademarks of Seequent Limited. The conditioned stochastic discrete fracture network (CS-DFN) model was created using FracMan software (Golder Associates, Inc.). Discussion with A. Finnila (Golder Associates, Inc.) was helpful in developing approach for creating CS-DFN for the testbed.
Publisher Copyright:
© 2019 Geothermal Resources Council. All rights reserved.
PY - 2019
Y1 - 2019
N2 - The EGS Collab project is conducting a series of stimulation and interwell flow tests in an intermediate scale (∼10-20 m) testbed located on the 4850 level in the Sanford Underground Research Facility (SURF) in Lead, South Dakota. The testbed consists of eight ∼200 ft (∼60 m) HQ-diameter (9.6 cm) boreholes that are drilled into the Poorman Formation from the western rib of the West Access Drift. Of the eight boreholes, one borehole is used as an injection/stimulation well, another sub-parallel borehole located about 10 m away from the injection well is used as a production well, and rest of the other boreholes are used as monitoring wells. For 3D visualization of the testbed as well as to provide spatially accurate and consistent parameter data for geomechanical and geophysical process modeling tasks, we are using Leapfrog Software (Seequent Limited). For analysis of fractures and creation of conditioned stochastic discrete fracture network (CS-DFN) model of the testbed, we are using FracMan (Golder Associates Inc.). As of mid-May 2019, the EGS Collab Leapfrog database contains the general layout of the drifts/shafts at the 4850 and 4100 levels; generalized geologic framework model of a domain that spans both the 4850 and 4100 levels; the CS-DFN of the testbed; and layouts of the EGS Collab testbed boreholes, kISMET testbed boreholes, and other existing boreholes at the 4850 level. This information has been obtained from the SURF Vulcan database, detailed laser scan and point surveys of borehole collar locations, directional surveys of borehole trajectories, and mapping of features in the drifts, boreholes, and cores. Similarly, other types of data that have been incorporated into the Leapfrog database include static features of the testbed such as natural discontinuities (e.g., fractures, weeps), location of monitoring instruments, and stimulation notches. Baseline geophysical characterization results (e.g., seismic, ERT, temperature, etc.) are also imported into the Leapfrog database. The location and size of packers, various point-source signals detected during stimulation and flow tests (e.g., temperature anomalies, micro-earthquake events, etc.) are also compiled in the database. All feature locations are reported using the local Homestake Mine coordinate system. In this paper, we present some of the geostructural characteristics as well as the status of the testbed as represented by Leapfrog/FracMan database/visualizations.
AB - The EGS Collab project is conducting a series of stimulation and interwell flow tests in an intermediate scale (∼10-20 m) testbed located on the 4850 level in the Sanford Underground Research Facility (SURF) in Lead, South Dakota. The testbed consists of eight ∼200 ft (∼60 m) HQ-diameter (9.6 cm) boreholes that are drilled into the Poorman Formation from the western rib of the West Access Drift. Of the eight boreholes, one borehole is used as an injection/stimulation well, another sub-parallel borehole located about 10 m away from the injection well is used as a production well, and rest of the other boreholes are used as monitoring wells. For 3D visualization of the testbed as well as to provide spatially accurate and consistent parameter data for geomechanical and geophysical process modeling tasks, we are using Leapfrog Software (Seequent Limited). For analysis of fractures and creation of conditioned stochastic discrete fracture network (CS-DFN) model of the testbed, we are using FracMan (Golder Associates Inc.). As of mid-May 2019, the EGS Collab Leapfrog database contains the general layout of the drifts/shafts at the 4850 and 4100 levels; generalized geologic framework model of a domain that spans both the 4850 and 4100 levels; the CS-DFN of the testbed; and layouts of the EGS Collab testbed boreholes, kISMET testbed boreholes, and other existing boreholes at the 4850 level. This information has been obtained from the SURF Vulcan database, detailed laser scan and point surveys of borehole collar locations, directional surveys of borehole trajectories, and mapping of features in the drifts, boreholes, and cores. Similarly, other types of data that have been incorporated into the Leapfrog database include static features of the testbed such as natural discontinuities (e.g., fractures, weeps), location of monitoring instruments, and stimulation notches. Baseline geophysical characterization results (e.g., seismic, ERT, temperature, etc.) are also imported into the Leapfrog database. The location and size of packers, various point-source signals detected during stimulation and flow tests (e.g., temperature anomalies, micro-earthquake events, etc.) are also compiled in the database. All feature locations are reported using the local Homestake Mine coordinate system. In this paper, we present some of the geostructural characteristics as well as the status of the testbed as represented by Leapfrog/FracMan database/visualizations.
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M3 - Conference contribution
AN - SCOPUS:85096098887
T3 - Transactions - Geothermal Resources Council
SP - 380
EP - 401
BT - Geothermal
PB - Geothermal Resources Council
Y2 - 15 September 2019 through 18 September 2019
ER -