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1. Using in-situ strain measurements to evaluate the accuracy of stress estimation procedures from fracture injection/shut-in tests

Author

Guglielmi, Yves, McClure, Mark, Burghardt, Jeffrey, Morris, Joseph P, Doe, Thomas, Fu, Pengcheng, Knox, Hunter, Vermeul, Vince, Kneafsey, Tim, Team, The EGS Collab, Ajo-Franklin, J, Baumgartner, T, Beckers, K, Blankenship, D, Bonneville, A, Boyd, L, Brown, S, Burghardt, JA, Chai, C, Chakravarty, A, Chen, T, Chen, Y, Chi, B, Condon, K, Cook, PJ, Crandall, D, Dobson, PF, Doe, T, Doughty, CA, Elsworth, D, Feldman, J, Feng, Z, Foris, A, Frash, LP, Frone, Z, Fu, P, Gao, K, Ghassemi, A, Guglielmi, Y, Haimson, B, Hawkins, A, Heise, J, Hopp, C, Horn, M, Horne, RN, Horner, J, Hu, M, Huang, H, Huang, L, Im, KJ, Ingraham, M, Jafarov, E, Jayne, RS, Johnson, TC, Johnson, SE, Johnston, B, Karra, S, Kim, K, King, DK, Kneafsey, T, Knox, H, Knox, J, Kumar, D, Kutun, K, Lee, M, Li, D, Li, J, Li, K, Li, Z, Maceira, M, Mackey, P, Makedonska, N, Marone, CJ, Mattson, E, McClure, MW, McLennan, J, McLing, T, Medler, C, Mellors, RJ, Metcalfe, E, Miskimins, J, Moore, J, Morency, CE, Morris, JP, Myers, T, Nakagawa, S, Neupane, G, Newman, G, Nieto, A, Paronish, T, Pawar, R, Petrov, P, Pietzyk, B, Podgorney, R, Polsky, Y, Pope, J, Porse, S, Primo, JC, Pyatina, T, and Reimers, C

Subjects
Engineering, Resources Engineering and Extractive Metallurgy, Bioengineering, DFIT, Minifrac, SIMFIP, Collab, Civil Engineering, Mining & Metallurgy, Civil engineering, Resources engineering and extractive metallurgy
Abstract

Fracture injection/shut-in tests are commonly used to measure the state of stress in the subsurface. Injection creates a hydraulic fracture (or in some cases, opens a preexisting fracture), and then the pressure after shut-in is monitored to identify fracture closure. Different interpretation procedures have been proposed for estimating closure, and the procedures sometimes yield significantly different results. In this study, direct, in-situ strain measurements are used to observe fracture reopening and closure. The tests were performed as part of the EGS Collab project, a mesoscale project performed at 1.25 and 1.5 km depth at the Sanford Underground Research Facility. The tests were instrumented with the SIMFIP tool, a double-packer probe with a high-resolution three-dimensional borehole displacement sensor. The measurements provide a direct observation of the fracture closure signature, enabling a high-fidelity estimate of the fracture closure stress (ie, the normal stress on the fracture). In two of the four tests, injection created an opening mode fracture, and so the closure stress can be interpreted as the minimum principal stress. In the other two tests, injection probably opened preexisting natural fractures, and so the closure stress can be interpreted as the normal stress on the fractures. The strain measurements are compared against different proposed methods for estimating closure stress from pressure transients. The shut-in transients are analyzed with two techniques that are widely used in the field of petroleum engineering – the ‘tangent’ method and the ‘compliance’ method. In three of the four tests, the tangent method significantly underestimates the closure stress. The compliance method is reasonably accurate in all four tests. Closure stress is also interpreted using two other commonly-used methods – ‘first deviation from linearity’ and the method of (Hayashi and Haimson, 1991). In comparison with the SIMFIP data, these methods tend to overestimate the closure stress, evidently because they identify closure from early-time transient effects, such as near-wellbore tortuosity. In two of the tests, microseismic imaging provides an independent estimate of the size of the fracture created by injection. When combined with a simple mass balance calculation, the SIMFIP stress measurements yield predictions of fracture size that are reasonably consistent with the estimates from microseismic. The calculations imply an apparent fracture toughness 2-3x higher than typical laboratory-derived values.

Published
2023

2. The EGS Collab -Experiment 2 Stimulations at 1.25 km Depth

Author

Kneafsey, T, Blankenship, D, Burghardt, J, Johnson, T, Dobson, P, Schwering, PC, Strickland, C, Vermuel, V, White, M, Morris, JP, Fu, P, Ingraham, M, Roggenthen, W, Hopp, C, Tribaldos, VR, Guglielmi, Y, Knox, H, Cook, P, Soom, F, Doe, T, Ulrich, C, Ajo-Franklin, JB, Huang, L, Neupane, G, Pyatina, T, Weers, J, Baumgartner, T, Beckers, K, Bonneville, A, Boyd, L, Brown, S, Chai, C, Chakravarty, A, Chen, T, Chen, Y, Chi, B, Condon, K, Crandall, D, Doughty, CA, Elsworth, D, Feldman, J, Feng, Z, Foris, A, Frash, LP, Frone, Z, Gao, K, Ghassemi, A, Haimson, B, Hawkins, A, Heise, J, Horn, M, Horne, RN, Horner, J, Hu, M, Huang, H, Im, KJ, Jafarov, E, Jayne, RS, Johnson, SE, Johnston, B, Karra, S, Kim, K, King, DK, Knox, J, Kumar, D, Kutun, K, Lee, M, Li, D, Li, J, Li, K, Li, Z, Maceira, M, Mackey, P, Makedonska, N, Marone, CJ, Mattson, E, McClure, MW, McLennan, J, McLing, T, Medler, C, Mellors, RJ, Metcalfe, E, Miskimins, J, Moore, J, Morency, CE, Myers, T, Nakagawa, S, Newman, G, Nieto, A, Paronish, T, Pawar, R, Petrov, P, Pietzyk, B, Podgorney, R, Polsky, Y, Pope, J, Porse, S, Primo, JC, Reimers, C, and Roberts, BQ

Subjects
Geochemistry & Geophysics
Abstract

The EGS Collab project is performing well-monitored rock stimulation and flow tests at the 10-m scale in an underground research laboratory to inform challenges in implementing enhanced geothermal systems (EGS). This project, supported by the US Department of Energy, is gathering data and observations from the field tests and comparing these to simulation results to understand processes and to build confidence in numerical modeling of the processes. Experiment 1 (now complete) examined hydraulic fracturing in an underground test bed at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, at a depth of approximately 1.5 km in a well-characterized phyllite. Geophysical monitoring instrumentation in six of eight sub-horizontal boreholes monitored stimulation events and flow tests. The other two boreholes were used to perform and carefully measure water injection and production. More than a dozen stimulations and nearly one year of flow tests in the testbed were performed. Detailed observations of processes occurring during stimulation and dynamic flow tests were collected and analyzed. Flow tests using ambient-temperature and chilled water were performed with intermittent tracer tests to examine system behavior. We achieved adaptive control of the tests using close monitoring of rapidly disseminated data and near-real-time simulation. Numerical simulation was critical in answering key experimental design questions, forecasting fracture behavior, and analyzing results. We were successful in performing many simulations in near-real-time in conjunction with the field experiments, with more detailed simulations performed later. The primary objective of Experiment 2 is to examine hydraulic shearing of natural fractures at a depth of 1.25 km in amphibolite at SURF. The stresses, rock type, and fracture conditions are different than in Experiment 1. The testbed consists of 9 boreholes, in addition to two earlier-drilled characterization boreholes. One borehole is used for injection, two fans of 2 monitoring wells have several geophysical measurement tools grouted in, and four open boreholes surrounding the injection hole are adaptively used for production and monitoring. We have encountered approximately five fracture set orientations in the testbed, and designed our testbed accordingly to maximize the potential for shear stimulation. Three stimulations have been performed to date from the injection borehole, each intersecting at least one production borehole. Different methods have been used for each stimulation, including a ramped flow, a high flow rate, and oscillating pressure.

Published
2022

3. Using in-situ strain measurements to evaluate the accuracy of stress estimation procedures from fracture injection/shut-in tests

Author

Ajo-Franklin, J., Baumgartner, T., Beckers, K., Blankenship, D., Bonneville, A., Boyd, L., Brown, S., Burghardt, J.A., Chai, C., Chakravarty, A., Chen, T., Chen, Y., Chi, B., Condon, K., Cook, P.J., Crandall, D., Dobson, P.F., Doe, T., Doughty, C.A., Elsworth, D., Feldman, J., Feng, Z., Foris, A., Frash, L.P., Frone, Z., Fu, P., Gao, K., Ghassemi, A., Guglielmi, Y., Haimson, B., Hawkins, A., Heise, J., Hopp, C., Horn, M., Horne, R.N., Horner, J., Hu, M., Huang, H., Huang, L., Im, K.J., Ingraham, M., Jafarov, E., Jayne, R.S., Johnson, T.C., Johnson, S.E., Johnston, B., Karra, S., Kim, K., King, D.K., Kneafsey, T., Knox, H., Knox, J., Kumar, D., Kutun, K., Lee, M., Li, D., Li, J., Li, K., Li, Z., Maceira, M., Mackey, P., Makedonska, N., Marone, C.J., Mattson, E., McClure, M.W., McLennan, J., McLing, T., Medler, C., Mellors, R.J., Metcalfe, E., Miskimins, J., Moore, J., Morency, C.E., Morris, J.P., Myers, T., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Paronish, T., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Pope, J., Porse, S., Primo, J.C., Pyatina, T., Reimers, C., Roberts, B.Q., Robertson, M., Rodríguez-Tribaldos, V., Roggenthen, W., Rutqvist, J., Rynders, D., Schoenball, M., Schwering, P., Sesetty, V., Sherman, C.S., Singh, A., Smith, M.M., Sone, H., Sonnenthal, E.L., Soom, F.A., Sprinkle, D.P., Sprinkle, S., Strickland, C.E., Su, J., Templeton, D., Thomle, J.N., Ulrich, C., Uzunlar, N., Vachaparampil, A., Valladao, C.A., Vandermeer, W., Vandine, G., Vardiman, D., Vermeul, V.R., Wagoner, J.L., Wang, H.F., Weers, J., Welch, N., White, J., White, M.D., Winterfeld, P., Wood, T., Workman, S., Wu, H., Wu, Y.S., Yildirim, E.C., Zhang, Y., Zhang, Y.Q., Zhou, Q., Zoback, M.D., Guglielmi, Yves, McClure, Mark, Burghardt, Jeffrey, Morris, Joseph P., Doe, Thomas, Fu, Pengcheng, Knox, Hunter, Vermeul, Vince, and Kneafsey, Tim

Published
2023
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4. Creation of a Mixed-Mode Fracture Network at Mesoscale Through Hydraulic Fracturing and Shear Stimulation

Author

Schoenball, M, Ajo-Franklin, JB, Blankenship, D, Chai, C, Chakravarty, A, Dobson, P, Hopp, C, Kneafsey, T, Knox, HA, Maceira, M, Robertson, MC, Sprinkle, P, Strickland, C, Templeton, D, Schwering, PC, Ulrich, C, Wood, T, Ajo-Franklin, J, Baumgartner, T, Beckers, K, Bonneville, A, Boyd, L, Brown, S, Burghardt, JA, Chen, T, Chen, Y, Chi, B, Condon, K, Cook, PJ, Crandall, D, Dobson, PF, Doe, T, Doughty, CA, Elsworth, D, Feldman, J, Feng, Z, Foris, A, Frash, LP, Frone, Z, Fu, P, Gao, K, Ghassemi, A, Guglielmi, Y, Haimson, B, Hawkins, A, Heise, J, Horn, M, Horne, RN, Horner, J, Hu, M, Huang, H, Huang, L, Im, KJ, Ingraham, M, Jafarov, E, Jayne, RS, Johnson, TC, Johnson, SE, Johnston, B, Karra, S, Kim, K, King, DK, Knox, H, Knox, J, Kumar, D, Kutun, K, Lee, M, Li, K, Li, Z, Mackey, P, Makedonska, N, Marone, CJ, Mattson, E, McClure, MW, McLennan, J, McLing, T, Medler, C, Mellors, RJ, Metcalfe, E, Miskimins, J, Moore, J, Morency, CE, Morris, JP, Myers, T, Nakagawa, S, Neupane, G, Newman, G, Nieto, A, Paronish, T, Pawar, R, Petrov, P, Pietzyk, B, Podgorney, R, and Polsky, Y

Subjects
induced seismicity, enhanced geothermal systems, mesoscale, Geochemistry, Geology, Geophysics
Abstract

Enhanced Geothermal Systems could provide a substantial contribution to the global energy demand if their implementation could overcome inherent challenges. Examples are insufficient created permeability, early thermal breakthrough, and unacceptable induced seismicity. Here we report on the seismic response of a mesoscale hydraulic fracturing experiment performed at 1.5-km depth at the Sanford Underground Research Facility. We have measured the seismic activity by utilizing a 100-kHz, continuous seismic monitoring system deployed in six 60-m length monitoring boreholes surrounding the experimental domain in 3-D. The achieved location uncertainty was on the order of 1 m and limited by the signal-to-noise ratio of detected events. These uncertainties were corroborated by detections of fracture intersections at the monitoring boreholes. Three intervals of the dedicated injection borehole were hydraulically stimulated by water injection at pressures up to 33 MPa and flow rates up to 5 L/min. We located 1,933 seismic events during several injection periods. The recorded seismicity delineates a complex fracture network comprised of multistrand hydraulic fractures and shear-reactivated, preexisting planes of weakness that grew unilaterally from the point of initiation. We find that heterogeneity of stress dictates the seismic outcome of hydraulic stimulations, even when relying on theoretically well-behaved hydraulic fractures. Once hydraulic fractures intersected boreholes, the boreholes acted as a pressure relief and fracture propagation ceased. In order to create an efficient subsurface heat exchanger, production boreholes should not be drilled before the end of hydraulic stimulations.

Published
2020

5. Low Static Shear Modulus Along Foliation and Its Influence on the Elastic and Strength Anisotropy of Poorman Schist Rocks, Homestake Mine, South Dakota

Author

Condon, KJ, Sone, H, Wang, HF, Ajo-Franklin, J, Baumgartner, T, Beckers, K, Blankenship, D, Bonneville, A, Boyd, L, Brown, S, Burghardt, JA, Chai, C, Chen, Y, Chi, B, Condon, K, Cook, PJ, Crandall, D, Dobson, PF, Doe, T, Doughty, CA, Elsworth, D, Feldman, J, Feng, Z, Foris, A, Frash, LP, Frone, Z, Fu, P, Gao, K, Ghassemi, A, Guglielmi, Y, Haimson, B, Hawkins, A, Heise, J, Hopp, C, Horn, M, Horne, RN, Horner, J, Hu, M, Huang, H, Huang, L, Im, KJ, Ingraham, M, Jafarov, E, Jayne, RS, Johnson, SE, Johnson, TC, Johnston, B, Kim, K, King, DK, Kneafsey, T, Knox, H, Knox, J, Kumar, D, Lee, M, Li, K, Li, Z, Maceira, M, Mackey, P, Makedonska, N, Mattson, E, McClure, MW, McLennan, J, Medler, C, Mellors, RJ, Metcalfe, E, Moore, J, Morency, CE, Morris, JP, Myers, T, Nakagawa, S, Neupane, G, Newman, G, Nieto, A, Oldenburg, CM, Paronish, T, Pawar, R, Petrov, P, Pietzyk, B, Podgorney, R, Polsky, Y, Pope, J, Porse, S, Primo, JC, Reimers, C, Roberts, BQ, Robertson, M, Roggenthen, W, Rutqvist, J, Rynders, D, Schoenball, M, Schwering, P, Sesetty, V, Sherman, CS, Singh, A, Smith, MM, Sonnenthal, EL, Soom, FA, Sprinkle, P, and Strickland, CE

Subjects
Anisotropy, Schist, Young's modulus, EGS Collab, Geological & Geomatics Engineering, Civil Engineering, Resources Engineering and Extractive Metallurgy
Abstract

We investigate the influence of foliation orientation and fine-scale folding on the static and dynamic elastic properties and unconfined strength of the Poorman schist. Measurements from triaxial and uniaxial laboratory experiments reveal a significant amount of variability in the static and dynamic Young’s modulus depending on the sample orientation relative to the foliation plane. Dynamic P-wave modulus and S-wave modulus are stiffer in the direction parallel to the foliation plane as expected for transversely isotropic mediums with average Thomsen parameters values 0.133 and 0.119 for epsilon and gamma, respectively. Static Young’s modulus varies significantly between 21 and 117 GPa, and a peculiar trend is observed where some foliated sample groups show an anomalous decrease in the static Young’s modulus when the symmetry axis (x3-axis) is oriented obliquely to the direction of loading. Utilizing stress and strain relationships for transversely isotropic medium, we derive the analytical expression for Young’s modulus as a function of the elastic moduli E1, E3, ν31, and G13 and sample orientation to fit the static Young’s modulus measurements. Regression of the equation to the Young’s modulus data reveals that the decrease in static Young’s modulus at oblique symmetry axis orientations is directly influenced by a low shear modulus, G13, which we attribute to shear sliding along foliation planes during static deformation that occurs as soon as the foliation is subject to shear stress. We argue that such difference between dynamic and static anisotropy is a characteristic of near-zero porosity anisotropic rocks. The uniaxial compressive strength also shows significant variability ranging from 21.9 to 194.6 MPa across the five sample locations and is the lowest when the symmetry axis is oriented 45° or 60° from the direction of loading, also a result of shear sliding along foliation planes during static deformation.

Published
2020

6. Optimal design of 3D borehole seismic arrays for microearthquake monitoring in anisotropic media during stimulations in the EGS collab project

Author

Chen, Yu, Huang, Lianjie, Ajo-Franklin, J, Bauer, SJ, Baumgartner, T, Beckers, K, Blankenship, D, Bonneville, A, Boyd, L, Brown, ST, Burghardt, JA, Chen, T, Chen, Y, Condon, K, Cook, PJ, Dobson, PF, Doe, T, Doughty, CA, Elsworth, D, Feldman, J, Foris, A, Frash, LP, Frone, Z, Fu, P, Gao, K, Ghassemi, A, Gudmundsdottir, H, Guglielmi, Y, Guthrie, G, Haimson, B, Hawkins, A, Heise, J, Herrick, CG, Horn, M, Horne, RN, Horner, J, Hu, M, Huang, H, Huang, L, Im, K, Ingraham, M, Johnson, TC, Johnston, B, Karra, S, Kim, K, King, DK, Kneafsey, T, Knox, H, Knox, J, Kumar, D, Kutun, K, Lee, M, Li, K, Lopez, R, Maceira, M, Makedonska, N, Marone, C, Mattson, E, McClure, MW, McLennan, J, McLing, T, Mellors, RJ, Metcalfe, E, Miskimins, J, Morris, JP, Nakagawa, S, Neupane, G, Newman, G, Nieto, A, Oldenburg, CM, Pan, W, Pawar, R, Petrov, P, Pietzyk, B, Podgorney, R, Polsky, Y, Porse, S, Richard, S, Roberts, BQ, Robertson, M, Roggenthen, W, Rutqvist, J, Rynders, D, Santos-Villalobos, H, Schoenball, M, Schwering, P, Sesetty, V, Singh, A, Smith, MM, Sone, H, Strickland, CE, Su, J, Ulrich, C, Uzunlar, N, Vachaparampil, A, Valladao, CA, Vandermeer, W, Vandine, G, Vardiman, D, and Vermeul, VR

Subjects
Anisotropic media, Borehole monitoring, Enhanced geothermal systems, Focal mechanism, Hypocenter location, Microearthquake, Optimal design, Geochemistry & Geophysics, Geology, Geophysics, Resources Engineering and Extractive Metallurgy
Published
2019

8. Using in-situ strain measurements to evaluate the accuracy of stress estimation procedures from fracture injection/shut-in tests

Author

Guglielmi, Yves, primary, McClure, Mark, additional, Burghardt, Jeffrey, additional, Morris, Joseph P., additional, Doe, Thomas, additional, Fu, Pengcheng, additional, Knox, Hunter, additional, Vermeul, Vince, additional, Kneafsey, Tim, additional, Ajo-Franklin, J., additional, Baumgartner, T., additional, Beckers, K., additional, Blankenship, D., additional, Bonneville, A., additional, Boyd, L., additional, Brown, S., additional, Burghardt, J.A., additional, Chai, C., additional, Chakravarty, A., additional, Chen, T., additional, Chen, Y., additional, Chi, B., additional, Condon, K., additional, Cook, P.J., additional, Crandall, D., additional, Dobson, P.F., additional, Doe, T., additional, Doughty, C.A., additional, Elsworth, D., additional, Feldman, J., additional, Feng, Z., additional, Foris, A., additional, Frash, L.P., additional, Frone, Z., additional, Fu, P., additional, Gao, K., additional, Ghassemi, A., additional, Guglielmi, Y., additional, Haimson, B., additional, Hawkins, A., additional, Heise, J., additional, Hopp, C., additional, Horn, M., additional, Horne, R.N., additional, Horner, J., additional, Hu, M., additional, Huang, H., additional, Huang, L., additional, Im, K.J., additional, Ingraham, M., additional, Jafarov, E., additional, Jayne, R.S., additional, Johnson, T.C., additional, Johnson, S.E., additional, Johnston, B., additional, Karra, S., additional, Kim, K., additional, King, D.K., additional, Kneafsey, T., additional, Knox, H., additional, Knox, J., additional, Kumar, D., additional, Kutun, K., additional, Lee, M., additional, Li, D., additional, Li, J., additional, Li, K., additional, Li, Z., additional, Maceira, M., additional, Mackey, P., additional, Makedonska, N., additional, Marone, C.J., additional, Mattson, E., additional, McClure, M.W., additional, McLennan, J., additional, McLing, T., additional, Medler, C., additional, Mellors, R.J., additional, Metcalfe, E., additional, Miskimins, J., additional, Moore, J., additional, Morency, C.E., additional, Morris, J.P., additional, Myers, T., additional, Nakagawa, S., additional, Neupane, G., additional, Newman, G., additional, Nieto, A., additional, Paronish, T., additional, Pawar, R., additional, Petrov, P., additional, Pietzyk, B., additional, Podgorney, R., additional, Polsky, Y., additional, Pope, J., additional, Porse, S., additional, Primo, J.C., additional, Pyatina, T., additional, Reimers, C., additional, Roberts, B.Q., additional, Robertson, M., additional, Rodríguez-Tribaldos, V., additional, Roggenthen, W., additional, Rutqvist, J., additional, Rynders, D., additional, Schoenball, M., additional, Schwering, P., additional, Sesetty, V., additional, Sherman, C.S., additional, Singh, A., additional, Smith, M.M., additional, Sone, H., additional, Sonnenthal, E.L., additional, Soom, F.A., additional, Sprinkle, D.P., additional, Sprinkle, S., additional, Strickland, C.E., additional, Su, J., additional, Templeton, D., additional, Thomle, J.N., additional, Ulrich, C., additional, Uzunlar, N., additional, Vachaparampil, A., additional, Valladao, C.A., additional, Vandermeer, W., additional, Vandine, G., additional, Vardiman, D., additional, Vermeul, V.R., additional, Wagoner, J.L., additional, Wang, H.F., additional, Weers, J., additional, Welch, N., additional, White, J., additional, White, M.D., additional, Winterfeld, P., additional, Wood, T., additional, Workman, S., additional, Wu, H., additional, Wu, Y.S., additional, Yildirim, E.C., additional, Zhang, Y., additional, Zhang, Y.Q., additional, Zhou, Q., additional, and Zoback, M.D., additional

Published
2023
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14. A robust return-map algorithm for general multisurface plasticity.

Author

Adhikary, D. P., Jayasundara, C. T., Podgorney, R. K., and Wilkins, A. H.

Subjects
MATERIAL plasticity, SURFACE structure, ALGORITHMS, NEWTON-Raphson method, SEDIMENTARY rocks
Abstract

Three new contributions to the field of multisurface plasticity are presented for general situations with an arbitrary number of nonlinear yield surfaces with hardening or softening. A method for handling linearly dependent flow directions is described. A residual that can be used in a line search is defined. An algorithm that has been implemented and comprehensively tested is discussed in detail. Examples are presented to illustrate the computational cost of various components of the algorithm. The overall result is that a single Newton-Raphson iteration of the algorithm costs between 1.5 and 2 times that of an elastic calculation. Examples also illustrate the successful convergence of the algorithm in complicated situations. For example, without using the new contributions presented here, the algorithm fails to converge for approximately 50% of the trial stresses for a common geomechanical model of sedementary rocks, while the current algorithm results in complete success. Because it involves no approximations, the algorithm is used to quantify the accuracy of an efficient, pragmatic, but approximate, algorithm used for sedimentary-rock plasticity in a commercial software package. The main weakness of the algorithm is identified as the difficulty of correctly choosing the set of initially active constraints in the general setting. Copyright © 2016 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Published
2017
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16. Geothermometric evaluation of geothermal resources in southeastern Idaho.

Author

Mattson, E. D., Podgorney, R. K., Neupane, G., McLing, T. L., Palmer, C. D., Smith, R. W., and Wood, T. R.

Subjects
*GEOTHERMAL resources, *GEOTHERMOMETRY
Abstract

Southeastern Idaho exhibits numerous warm springs, warm water from shallow wells, and hot water from oil and gas test wells that indicate a potential for geothermal development in the area. We have estimated reservoir temperatures from chemical composition of thermal waters in southeastern Idaho using an inverse geochemical modeling technique (Reservoir Temperature Estimator, RTEst) that calculates the temperature at which multiple minerals are simultaneously at equilibrium while explicitly accounting for the possible loss of volatile constituents (e.g., CO2), boiling and/or water mixing. The temperature estimates in the region varied from moderately warm (59°C) to over 175°C. Specifically, hot springs near Preston, Idaho, resulted in the highest reservoir temperature estimates in the region. [ABSTRACT FROM AUTHOR]

Published
2016
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20. EGS Collab project: Status, tests, and data

Author

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

21. EGS Collab Earth modeling: Integrated 3D model of the testbed

Author

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

22. Design of a long term hydraulic fracture and flow system

Author

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

23. Geomechanical evaluation of natural shear fractures in the EGS Collab experiment 1 test bed

Author

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

24. Numerical modeling of seismic and displacement-based monitoring for the EGS Collab project

Author

Huang, L., Chen, Y., Gao, K., Fu, P., Morris, J., Ajo-Franklin, J., Nakagawa, S., Bauer, S. J., Baumgartner, T., Blankenship, D., Bonneville, A., Boyd, L., Brown, S. T., Burghardt, J. A., Carroll, S. A., Chen, T., Condon, C., Cook, P. J., Dobson, P. F., Doe, T., Doughty, C. A., Elsworth, D., Frash, L. P., Frone, Z., Ghassemi, A., Gudmundsdottir, H., Guglielmi, Y., Guthrie, G., Haimson, B., Heise, J., Herrick, C. G., Horn, M., Horne, R. N., Hu, M., Huang, H., Johnson, T. C., Johnston, B., Satish Karra, Kim, K., King, D. K., Kneafsey, T., Knox, H., Kumar, D., Lee, M., Li, K., Maceira, M., Makedonska, N., Marone, C., Mattson, E., Mcclure, M. W., Mclennan, J., Mcling, T., Mellors, R. J., Metcalfe, E., Miskimins, J., Morris, J. P., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Porse, S., Roggenthen, B., Rutqvist, J., Santos-Villalobos, H., Schwering, P., Sesetty, V., Singh, A., Smith, M. M., Snyder, N., Sone, H., Sonnenthal, E. L., Spycher, N., Strickland, C. E., Su, J., Suzuki, A., Ulrich, C., Uzunlar, N., Valladao, C. A., Vandermeer, W., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Weers, J., White, J., White, M. D., Winterfeld, P., Wu, Y. S., Wu, Y., Zhang, Y., Zhang, Y. Q., Zhou, J., Zhou, Q., and Zoback, M. D.

25. Efforts and innovations to promote data sharing and data accessibility in the EGS collab experiments

Author

Fu, P., Weers, J., White, M., Knox, H., Schwering, P., Morris, J., Blankenship, D., Kneafsey, T., Egs Collab Teama, Ajo-Franklin, J., Baumgartner, T., Beckers, K., Bonneville, A., Boyd, L., Brown, S., Burghardt, J. A., Chai, C., Chakravarty, A., Chen, T., Chen, Y., Chi, B., Condon, K., Cook, P. J., Crandall, D., Dobson, P. F., Doe, T., Doughty, C. A., Elsworth, D., Feldman, J., Feng, Z., Foris, A., Frash, L. P., Frone, Z., Gao, K., Ghassemi, A., Guglielmi, Y., Haimson, B., Hawkins, A., Heise, J., Hopp, C., Horn, M., Horne, R. N., Horner, J., Hu, M., Huang, H., Huang, L., Im, K. J., Ingraham, M., Jafarov, E., Jayne, R. S., Johnson, T. C., Johnson, S. E., Johnston, B., Karra, S., Kim, K., King, D. K., Knox, J., Kumar, D., Kutun, K., Lee, M., Li, D., Li, J., Li, K., Li, Z., Maceira, M., Mackey, P., Makedonska, N., Marone, C. J., Mattson, E., Mcclure, M. W., John McLennan, Mcling, T., Medler, C., Mellors, R. J., Metcalfe, E., Miskimins, J., Moore, J., Morency, C. E., Morris, J. P., Myers, T., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Paronish, T., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Pope, J., Porse, S., Primo, J. C., Reimers, C., Roberts, B. Q., Robertson, M., Rodriguez-Tribaldos, V., Roggenthen, W., Rutqvist, J., Rynders, D., Schoenball, M., Sesetty, V., Sherman, C. S., Singh, A., Smith, M. M., Sone, H., Sonnenthal, E. L., Soom, F. A., Sprinkle, D. P., Sprinkle, S., Strickland, C. E., Su, J., Templeton, D., Thomle, J. N., Ulrich, C., Uzunlar, N., Vachaparampil, A., Valladao, C. A., Vandermeer, W., Vandine, G., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Welch, N., White, J., White, M. D., Winterfeld, P., Wood, T., Workman, S., Wu, H., Wu, Y. S., Yildirim, E. C., Zhang, Y., Zhang, Y. Q., Zhou, Q., and Zoback, M. D.

26. The distribution, orientation, and characteristics of natural fractures for experiment 1 of the EGS collab project, Sanford underground research facility

Author

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

27. Co-evolution of fracture permeability and friction in rocks from the egs collab experiment 1 site

Author

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

28. The EGS collab project: Stimulation and simulation

Author

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

29. The role of numerical simulation in the design of stimulation and circulation experiments for the EGS Collab project

Author

White, M., Fu, P., Huang, H., Ghassemi, A., Kneafsey, T., Blankenship, D., Ajo-Franklin, J., Bauer, S. J., Baumgartner, T., Bonneville, A., Boyd, L., Brown, S. T., Burghardt, J. A., Carroll, S. A., Chen, T., Condon, C., Cook, P. J., Dobson, P. F., Doe, T., Doughty, C. A., Elsworth, D., Frash, L. P., Frone, Z., Gudmundsdottir, H., Guglielmi, Y., Guthrie, G., Haimson, B., Heise, J., Herrick, C. G., Horn, M., Horne, R. N., Hu, M., Huang, L., Johnson, T. C., Johnston, B., Karra, S., Kim, K., King, D. K., Knox, H., Kumar, D., Lee, M., Li, K., Maceira, M., Makedonska, N., Marone, C., Mattson, E., Mcclure, M. W., John McLennan, Mcling, T., Mellors, R. J., Metcalfe, E., Miskimins, J., Morris, J. P., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Porse, S., Roggenthen, B., Rutqvist, J., Santos-Villalobos, H., Schwering, P., Sesetty, V., Singh, A., Smith, M. M., Snyder, N., Sone, H., Sonnenthal, E. L., Spycher, N., Strickland, C. E., Su, J., Suzuki, A., Ulrich, C., Uzunlar, N., Valladao, C. A., Vandermeer, W., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Weers, J., White, J., White, M. D., Winterfeld, P., Wu, Y. S., Wu, Y., Zhang, Y., Zhang, Y. Q., Zhou, J., Zhou, Q., and Zoback, M. D.

30. Laboratory validation of fracture caging for hydraulic fracture control

Author

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

31. The EGS collab hydrofracture experiment at the Sanford underground research facility - Campaign cross-borehole seismic characterization

Author

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

32. EGS Collab project experiment 1 overview and progress

Author

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

33. Natural fractures and their relationship to the EGS Collab Project in the underground of the Sanford Underground Research Facility (SURF)

Author

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

35. Hydraulic fracture modeling in support of EGS collab treatment designs

Author

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

36. Design and fabrication of a remote-control hydraulic fracturing system

Author

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

37. Fracture tracer injection response to pressure perturbations at an injection well

Author

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

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

Author

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

39. Experimental design for hydrofracturing and fluid flow at the DOE EGS collab testbed

Author

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

40. Toward real-time microearthquake event detection and location in anisotropic media using a multiscale approach for EGS collab experiments

Author

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

41. Integrated research & development for advancing EGS commercialization - Tipping the scales

Author

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

43. The EGS Collab project: Status and Accomplishments

Author

Kneafsey, T., Blankenship, D., Dobson, P., White, M., Morris, J. P., Fu, P., Schwering, P. C., Ajo-Franklin, J. B., Huang, L., Knox, H. A., Strickland, C., Burghardt, J., Johnson, T., Neupane, G., Weers, J., Horne, R., Roggenthen, W., Doe, T., Mattson, E., Ajo-Franklin, J., Baumgartner, T., Beckers, K., Bonneville, A., Boyd, L., Brown, S., Burghardt, J. A., Chai, C., Chakravarty, A., Chen, T., Chen, Y., Chi, B., Condon, K., Cook, P. J., Crandall, D., Dobson, P. F., Doughty, C. A., Elsworth, D., Feldman, J., Feng, Z., Foris, A., Frash, L. P., Frone, Z., Gao, K., Ghassemi, A., Guglielmi, Y., Haimson, B., Hawkins, A., Heise, J., Hopp, C., Horn, M., Horne, R. N., Horner, J., Hu, M., Huang, H., Im, K. J., Ingraham, M., Jafarov, E., Jayne, R. S., Johnson, T. C., Johnson, S. E., Johnston, B., Karra, S., Kim, K., King, D. K., Knox, H., Knox, J., Kumar, D., Kutun, K., Lee, M., Li, D., Li, J., Li, K., Li, Z., Maceira, M., Mackey, P., Makedonska, N., Marone, C. J., Mcclure, M. W., Mclennan, J., Mcling, T., Medler, C., Mellors, R. J., Metcalfe, E., Miskimins, J., Moore, J., Morency, C. E., Myers, T., Nakagawa, S., Newman, G., Nieto, A., Paronish, T., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Pope, J., Porse, S., Primo, J. C., Reimers, C., Roberts, B. Q., Robertson, M., Rodriguez-Tribaldos, V., Rutqvist, J., Rynders, D., Schoenball, M., Schwering, P., Sesetty, V., Sherman, C. S., Singh, A., Smith, M. M., Sone, H., Sonnenthal, E. L., Soom, F. A., Sprinkle, D. P., Sprinkle, S., Strickland, C. E., Su, J., Dennise Templeton, Thomle, J. N., Ulrich, C., Uzunlar, N., Vachaparampil, A., Valladao, C. A., Vandermeer, W., Vandine, G., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Welch, N., White, J., White, M. D., Winterfeld, P., Wood, T., Workman, S., Wu, H., Wu, Y. S., Yildirim, E. C., Zhang, Y., Zhang, Y. Q., Zhou, Q., and Zoback, M. D.

44. Fracture and flow designs for the collab/SIGMA-V project

Author

Knox, H., Fu, P., Morris, J., Guglielmi, Y., Vermeul, V., Ajo-Franklin, J., Strickland, C., Johnson, T., Cook, P., Herrick, C., Lee, M., Bauer, S. J., Baumgartner, T., Blankenship, D., Bonneville, A., Boyd, L., Brown, S. T., Burghardt, J. A., Carroll, S. A., Chen, T., Condon, C., Cook, P. J., Dobson, P. F., Doe, T., Doughty, C. A., Derek Elsworth, Frash, L. P., Frone, Z., Ghassemi, A., Gudmundsdottir, H., Guthrie, G., Haimson, B., Heise, J., Herrick, C. G., Horn, M., Horne, R. N., Hu, M., Huang, H., Huang, L., Johnson, T. C., Johnston, B., Karra, S., Kim, K., King, D. K., Kneafsey, T., Kumar, D., Li, K., Maceira, M., Makedonska, N., Marone, C., Mattson, E., Mcclure, M. W., Mclennan, J., Mcling, T., Mellors, R. J., Metcalfe, E., Miskimins, J., Morris, J. P., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Porse, S., Roggenthen, B., Rutqvist, J., Santos-Villalobos, H., Schwering, P., Sesetty, V., Singh, A., Smith, M. M., Snyder, N., Sone, H., Sonnenthal, E. L., Spycher, N., Strickland, C. E., Su, J., Suzuki, A., Ulrich, C., Valladao, C. A., Vandermeer, W., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Weers, J., White, J., White, M. D., Winterfeld, P., Wu, Y. S., Wu, Y., Zhang, Y., Zhang, Y. Q., Zhou, J., Zhou, Q., and Zoback, M. D.

45. An introduction to the EGS Collab project

Author

Dobson, P., Kneafsey, T. J., Blankenship, D., Valladao, C., Morris, J., Knox, H., Schwering, P., White, M., Doe, T., Roggenthen, W., Mattson, E., Podgorney, R., Johnson, T., Ajo-Franklin, J., Bauer, S. J., Baumgartner, T., Bonneville, A., Boyd, L., Brown, S. T., Burghardt, J., Carroll, S. A., Chen, T., Condon, C., Cook, P. J., Doughty, C. A., Elsworth, D., Frash, L. P., Frone, Z., Fu, P., Ghassemi, A., Gudmundsdottir, H., Guglielmi, Y., Guthrie, G., Haimson, B., Heise, J., Herrick, C. G., Horn, M., Horne, R. N., Hu, M., Huang, H., Huang, L., Johnston, B., Satish Karra, Kim, K., King, D. K., Kumar, D., Lee, M., Li, K., Maciera, M., Makedonska, N., Marone, C., Mcclure, M. W., Mclennan, J., Mcling, T., Mellors, R. J., Metcalfe, E., Miskimins, J., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Pawar, R., Petrov, P., Pietzyk, B., Polsky, Y., Porse, S., Rutqvist, J., Santos-Villalobos, H., Sesetty, V., Singh, A., Smith, M. M., Snyder, N., Sone, H., Sonnenthal, E. L., Spycher, N., Strickland, C. E., Su, J., Suzuki, A., Ulrich, C., Uzunlar, N., Vandermeer, W., Vardiman, D., Vermeul, V., Wagoner, J. L., Wang, H. F., Weers, J., White, J., Winterfeld, P., Wu, Y. S., Wu, Y., Zhang, Y., Zhang, Y. Q., Zhou, J., Zhou, Q., and Zoback, M. D.

46. The EGS Collab hydroshear experiment at the Sanford underground research facility - Siting criteria and evaluation of candidate sites

Author

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

47. Slip tendency analysis of fracture networks to determine suitability of candidate testbeds for the EGS collab hydroshear experiment

Author

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

48. Fracture and flow designs for the collab/SIGMA-V project

Author

Knox, H., Fu, P., Morris, J., Guglielmi, Y., Vermeul, V., Ajo-Franklin, J., Strickland, C., Johnson, T., Cook, P., Herrick, C., Lee, M., Bauer, S. J., Baumgartner, T., Blankenship, D., Bonneville, A., Boyd, L., Brown, S. T., Burghardt, J. A., Carroll, S. A., Chen, T., Condon, C., Cook, P. J., Dobson, P. F., Doe, T., Doughty, C. A., Elsworth, D., Frash, L. P., Frone, Z., Ghassemi, A., Gudmundsdottir, H., Guthrie, G., Haimson, B., Heise, J., Horn, M., Horne, R. N., Hu, M., Huang, H., Huang, L., Johnson, T. C., Johnston, B., Karra, S., Kim, K., King, D. K., Kneafsey, T., Kumar, D., Li, K., Maceira, M., Makedonska, N., Marone, C., Mattson, E., Mcclure, M. W., John McLennan, Mcling, T., Mellors, R. J., Metcalfe, E., Miskimins, J., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Porse, S., Roggenthen, B., Rutqvist, J., Santos-Villalobos, H., Schwering, P., Sesetty, V., Singh, A., Smith, M. M., Snyder, N., Sone, H., Sonnenthal, E. L., Spycher, N., Su, J., Suzuki, A., Ulrich, C., Valladao, C. A., Vandermeer, W., Vardiman, D., Wagoner, J. L., Wang, H. F., Weers, J., White, J., White, M. D., Winterfeld, P., Wu, Y. S., Wu, Y., Zhang, Y., Zhang, Y. Q., Zhou, J., Zhou, Q., and Zoback, M. D.

49. Deterministic Discrete Fracture Network (DFN) Model for the EGS Collab Project on the 4850 Level of the Sanford Underground Research Facility (SURF)

Author

Schwering, P. C., Doe, T. W., Roggenthen, W. M., Neupane, G. H., Johnston, H., Dobson, P. F., Ulrich, C., Singh, A., Uzunlar, N., Reimers, C., Ajo-Franklin, J., Baumgartner, T., Beckers, K., Blankenship, D., Bonneville, A., Boyd, L., Brown, S., Burghardt, J. A., Chai, C., Chen, Y., Chi, B., Condon, K., Cook, P. J., Crandall, D., Doe, T., Doughty, C. A., Elsworth, D., Feldman, J., Feng, Z., Foris, A., Frash, L. P., Frone, Z., Fu, P., Gao, K., Ghassemi, A., Guglielmi, Y., Haimson, B., Hawkins, A., Heise, J., Hopp, C., Horn, M., Horne, R. N., Horner, J., Hu, M., Huang, H., Huang, L., Im, K. J., Ingraham, M., Jafarov, E., Jayne, R. S., Johnson, S. E., Johnson, T. C., Johnston, B., Kim, K., King, D. K., Kneafsey, T., Knox, H., Knox, J., Kumar, D., Lee, M., Li, K., Li, Z., Maceira, M., Mackey, P., Makedonska, N., Mattson, E., Mcclure, M. W., Mclennan, J., Medler, C., Mellors, R. J., Metcalfe, E., Moore, J., Morency, C. E., Morris, J. P., Myers, T., Nakagawa, S., Neupane, G., Newman, G., Nieto, A., Oldenburg, C. M., Paronish, T., Pawar, R., Petrov, P., Pietzyk, B., Podgorney, R., Polsky, Y., Pope, J., Porse, S., Primo, J. C., Roberts, B. Q., Robertson, M., Roggenthen, W., Rutqvist, J., Rynders, D., Schoenball, M., Schwering, P., Sesetty, V., Sherman, C. S., Smith, M. M., Sone, H., Sonnenthal, E. L., Soom, F. A., Sprinkle, P., Strickland, C. E., Su, J., Dennise Templeton, Thomle, J. N., Tribaldos, V. R., Vachaparampil, A., Valladao, C. A., Vandermeer, W., Vandine, G., Vardiman, D., Vermeul, V. R., Wagoner, J. L., Wang, H. F., Weers, J., Welch, N., White, J., White, M. D., Winterfeld, P., Wood, T., Workman, S., Wu, H., Wu, Y. S., Yildirim, E. C., Zhang, Y., Zhang, Y. Q., Zhou, Q., and Zoback, M. D.

50. Challenges for Numerical Modeling of Enhanced Geothermal Systems.

Author

Fairley, J. P., Ingebritsen, S. E., and Podgorney, R. K.

Subjects
GEOTHERMAL resources, WATER-rock interaction, GEOCHEMICAL modeling, CLEAN energy industries, WORKING fluids, VISCOSITY
Abstract

The article offers information regarding the possible use of enhanced geothermal systems (EGS) as the future green energy source. It refers to the article by W. W. Wood wherein it presents challenges for EGS simulation which include growth of discrete fractures, representation of water-rock interaction with hydrothermal fluids, and thermodynamic data for geochemical reactions. It mentions various requirements to support GES such as better use of geochemical data and availability of field data.

Published
2010
Full Text
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