The EGS collab project: Stimulation and simulation

EGS Collab Team

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

Development of Enhanced Geothermal Systems (EGS) requires accurate predictions of flow rates and temperatures at production wells over time. The concept of EGS is simple; however, complications from heterogeneity and complexity of fracture pathways may lead to channeling, short-circuiting, and premature thermal breakthrough. In the EGS Collab project, we are establishing a suite of highly monitored and well characterized intermediate-scale (~10-20 m) field test beds along with fracture stimulation and interwell flow tests to better understand processes that control formation of effective subsurface heat exchangers. EGS Collab experiments will provide a means of testing tools and concepts that could later be employed under geothermal reservoir conditions at FORGE or elsewhere. Key to the project is using numerical simulations in the experiment design and interpretation of results. Our tests will be well-controlled, in situ experiments focused on rock fracture behavior and permeability enhancement. Our pre- and post-test modeling results of each field experiment compared with detailed measurements will allow for improved model prediction and validation. We will use comprehensive instrumentation to collect high-quality and high-resolution geophysical and other fracture characterization and fluid flow data. We will analyze these data and compare them with models and field observations to further elucidate the basic relationships between stress, induced seismicity, and permeability enhancement. We will also observe and quantify other key governing parameters that impact permeability, and will attempt to understand how these parameters might change throughout the development and operation of an EGS project with the ultimate goal of enabling commercial viability of EGS. Our first set of experiments will be performed at the Sanford Underground Research Facility (SURF) in South Dakota. Our team is well underway with building the first field experiment test bed planned for this project, which is supported by the US Department of Energy’s Geothermal Technologies Office.

Original languageEnglish (US)
StatePublished - Jan 1 2018
Event52nd U.S. Rock Mechanics/Geomechanics Symposium - Seattle, United States
Duration: Jun 17 2018Jun 20 2018

Other

Other52nd U.S. Rock Mechanics/Geomechanics Symposium
CountryUnited States
CitySeattle
Period6/17/186/20/18

Fingerprint

stimulation
permeability
simulation
test stands
Experiments
geothermal technology
experiment
research facilities
augmentation
experiment design
field tests
induced seismicity
heat exchangers
predictions
viability
fluid flow
prediction
flow velocity
Process control
Heat exchangers

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

Cite this

EGS Collab Team (2018). The EGS collab project: Stimulation and simulation. Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States.
EGS Collab Team. / The EGS collab project : Stimulation and simulation. Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States.
@conference{a7e25ee258134955ac7dc8b908cab54e,
title = "The EGS collab project: Stimulation and simulation",
abstract = "Development of Enhanced Geothermal Systems (EGS) requires accurate predictions of flow rates and temperatures at production wells over time. The concept of EGS is simple; however, complications from heterogeneity and complexity of fracture pathways may lead to channeling, short-circuiting, and premature thermal breakthrough. In the EGS Collab project, we are establishing a suite of highly monitored and well characterized intermediate-scale (~10-20 m) field test beds along with fracture stimulation and interwell flow tests to better understand processes that control formation of effective subsurface heat exchangers. EGS Collab experiments will provide a means of testing tools and concepts that could later be employed under geothermal reservoir conditions at FORGE or elsewhere. Key to the project is using numerical simulations in the experiment design and interpretation of results. Our tests will be well-controlled, in situ experiments focused on rock fracture behavior and permeability enhancement. Our pre- and post-test modeling results of each field experiment compared with detailed measurements will allow for improved model prediction and validation. We will use comprehensive instrumentation to collect high-quality and high-resolution geophysical and other fracture characterization and fluid flow data. We will analyze these data and compare them with models and field observations to further elucidate the basic relationships between stress, induced seismicity, and permeability enhancement. We will also observe and quantify other key governing parameters that impact permeability, and will attempt to understand how these parameters might change throughout the development and operation of an EGS project with the ultimate goal of enabling commercial viability of EGS. Our first set of experiments will be performed at the Sanford Underground Research Facility (SURF) in South Dakota. Our team is well underway with building the first field experiment test bed planned for this project, which is supported by the US Department of Energy’s Geothermal Technologies Office.",
author = "{EGS Collab Team} and Kneafsey, {T. J.} and Dobson, {P. F.} and Ajo-Franklin, {J. B.} and C. Valladao and Blankenship, {D. A.} and Knox, {H. A.} and P. Schwering and Morris, {J. P.} and M. Smith and White, {M. D.} and T. Johnson and R. Podgorney and E. Mattson and G. Neupane and W. Roggenthen and T. Doe and Bauer, {S. J.} and T. Baumgartner and K. Beckers and A. Bonneville and L. Boyd and Brown, {S. T.} and Burghardt, {J. A.} and T. Chen and Y. Chen and K. Condon and Cook, {P. J.} and Doughty, {C. A.} and D. Elsworth and J. Feldman and A. Foris and Frash, {L. P.} and Z. Frone and P. Fu and K. Gao and A. Ghassemi and H. Gudmundsdottir and Y. Guglielmi and G. Guthrie and B. Haimson and A. Hawkins and J. Heise and Herrick, {C. G.} and M. Horn and Horne, {R. N.} and J. Horner and M. Hu and H. Huang and L. Huang and K. Im",
year = "2018",
month = "1",
day = "1",
language = "English (US)",
note = "52nd U.S. Rock Mechanics/Geomechanics Symposium ; Conference date: 17-06-2018 Through 20-06-2018",

}

EGS Collab Team 2018, 'The EGS collab project: Stimulation and simulation' Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States, 6/17/18 - 6/20/18, .

The EGS collab project : Stimulation and simulation. / EGS Collab Team.

2018. Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - The EGS collab project

T2 - Stimulation and simulation

AU - EGS Collab Team

AU - Kneafsey, T. J.

AU - Dobson, P. F.

AU - Ajo-Franklin, J. B.

AU - Valladao, C.

AU - Blankenship, D. A.

AU - Knox, H. A.

AU - Schwering, P.

AU - Morris, J. P.

AU - Smith, M.

AU - White, M. D.

AU - Johnson, T.

AU - Podgorney, R.

AU - Mattson, E.

AU - Neupane, G.

AU - Roggenthen, W.

AU - Doe, T.

AU - Bauer, S. J.

AU - Baumgartner, T.

AU - Beckers, K.

AU - Bonneville, A.

AU - Boyd, L.

AU - Brown, S. T.

AU - Burghardt, J. A.

AU - Chen, T.

AU - Chen, Y.

AU - Condon, K.

AU - Cook, P. J.

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 - Herrick, C. G.

AU - Horn, M.

AU - Horne, R. N.

AU - Horner, J.

AU - Hu, M.

AU - Huang, H.

AU - Huang, L.

AU - Im, K.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Development of Enhanced Geothermal Systems (EGS) requires accurate predictions of flow rates and temperatures at production wells over time. The concept of EGS is simple; however, complications from heterogeneity and complexity of fracture pathways may lead to channeling, short-circuiting, and premature thermal breakthrough. In the EGS Collab project, we are establishing a suite of highly monitored and well characterized intermediate-scale (~10-20 m) field test beds along with fracture stimulation and interwell flow tests to better understand processes that control formation of effective subsurface heat exchangers. EGS Collab experiments will provide a means of testing tools and concepts that could later be employed under geothermal reservoir conditions at FORGE or elsewhere. Key to the project is using numerical simulations in the experiment design and interpretation of results. Our tests will be well-controlled, in situ experiments focused on rock fracture behavior and permeability enhancement. Our pre- and post-test modeling results of each field experiment compared with detailed measurements will allow for improved model prediction and validation. We will use comprehensive instrumentation to collect high-quality and high-resolution geophysical and other fracture characterization and fluid flow data. We will analyze these data and compare them with models and field observations to further elucidate the basic relationships between stress, induced seismicity, and permeability enhancement. We will also observe and quantify other key governing parameters that impact permeability, and will attempt to understand how these parameters might change throughout the development and operation of an EGS project with the ultimate goal of enabling commercial viability of EGS. Our first set of experiments will be performed at the Sanford Underground Research Facility (SURF) in South Dakota. Our team is well underway with building the first field experiment test bed planned for this project, which is supported by the US Department of Energy’s Geothermal Technologies Office.

AB - Development of Enhanced Geothermal Systems (EGS) requires accurate predictions of flow rates and temperatures at production wells over time. The concept of EGS is simple; however, complications from heterogeneity and complexity of fracture pathways may lead to channeling, short-circuiting, and premature thermal breakthrough. In the EGS Collab project, we are establishing a suite of highly monitored and well characterized intermediate-scale (~10-20 m) field test beds along with fracture stimulation and interwell flow tests to better understand processes that control formation of effective subsurface heat exchangers. EGS Collab experiments will provide a means of testing tools and concepts that could later be employed under geothermal reservoir conditions at FORGE or elsewhere. Key to the project is using numerical simulations in the experiment design and interpretation of results. Our tests will be well-controlled, in situ experiments focused on rock fracture behavior and permeability enhancement. Our pre- and post-test modeling results of each field experiment compared with detailed measurements will allow for improved model prediction and validation. We will use comprehensive instrumentation to collect high-quality and high-resolution geophysical and other fracture characterization and fluid flow data. We will analyze these data and compare them with models and field observations to further elucidate the basic relationships between stress, induced seismicity, and permeability enhancement. We will also observe and quantify other key governing parameters that impact permeability, and will attempt to understand how these parameters might change throughout the development and operation of an EGS project with the ultimate goal of enabling commercial viability of EGS. Our first set of experiments will be performed at the Sanford Underground Research Facility (SURF) in South Dakota. Our team is well underway with building the first field experiment test bed planned for this project, which is supported by the US Department of Energy’s Geothermal Technologies Office.

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EGS Collab Team. The EGS collab project: Stimulation and simulation. 2018. Paper presented at 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, United States.