Influence of extreme fracture flow channels on the thermal performance of open-loop geothermal systems at commercial scale

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N. Rangel-Jurado, A. J. Hawkins, P. M. Fulton

Geothermal Energy, vol. 11, 2023

Techno-economic performance of closed-loop geothermal systems for heat production and electricity generation

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K. Beckers, N. Rangel-Jurado, H. Chandrasekar, A. J. Hawkins, P. M. Fulton, J. W. Tester

Geothermics, vol. 100, 2022

Estimation of flow-channel structures with uncertainty quantification

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A. Suzuki, E. K. Bjarkason, A. Yamaguchi, A. J. Hawkins, T. Hashida

Geothermics, vol. 105, 2022

Comparison of microbial profiling and tracer testing for the characterization of injector-producer interwell connectivities

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Y. Zhang, A. E. Dekas, A. J. Hawkins, J. Carlo Primo, O. Gorbatenko

Water, vol. 14(18), 2022

Geological activity shapes the microbiome in deep-subsurface aquifers by advection

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Y. Zhang, R. N. Horne, A. J. Hawkins, J. Carlo Primo, O. Gorbatenko, A. E. Dekas

Proceedings of the National Academy of Sciences, vol. 119, 2022

Temperature-responsive smart tracers for field-measurement of inter-well thermal evolution: Heterogeneous kinetics and field demonstration

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A. J. Hawkins, J. T. Bender, R. Grooms, C. J. Schissel, J. W. Tester

Geothermics, vol. 92, 2021

The evolving role of geothermal energy for decarbonizing the United States

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J. Tester, K. Beckers, A. J. Hawkins, M. Lukawski

Energy & Environmental Science, vol. 14, 2021, pp. 6211-6241

Predicting thermal performance of an enhanced geothermal system from tracer tests in a data assimilation framework

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H. Wu, P. Fu, A. J. Hawkins, H. Tang, J. P. Morris

Water Resources Research, vol. 57, 2021

Characterization of flow and transport in a fracture network at the EGS Collab field experiment through stochastic modeling of tracer recovery

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H. Wu, P. Fu, J. P. Morris, E. D. Mattson, G. Neupane, M. M. Smith, A. J. Hawkins, Y. Zhang, T. Kneafsey

Journal of Hydrology, vol. 593, 2021

DNA tracer transport through porous media - The effect of DNA length and adsorption

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Y. Zhang, M. Hartung, A. J. Hawkins, A. E. Dekas, K. Li, R. N. Horne

Water Resources Research, vol. 57, 2021

Predictive inverse model for advective heat transfer in a short-circuited fracture: Dimensional analysis, machine learning, and field demonstration

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A. J. Hawkins, D. B. Fox, D. L. Koch, M. W. Becker, J. W. Tester

Water Resources Research, vol. 56, 2020

Optimization of fluorescence and surface adsorption of citric acid/ethanolamine carbon nanoparticles for subsurface tracers

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L. Sinclair, J. Brown, D. May, B. Guilvaiee, A. Hawkins, L. Cathles

Carbon, vol. 169, 2020

Microbial community composition in deep-subsurface reservoir fluids reveals natural interwell connectivity

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Y. Zhang, A. E. Dekas, A. J. Hawkins, A. E. Parada, O. Gorbatenko, K. Li, R. N. Horne

Water Resources Research, vol. 56, 2020

Chemical dissolution drilling of Barre granite using a sodium hydroxide enhanced supercritical water jet

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I. Beentjes, J. T. Bender, A. J. Hawkins, J. W. Tester

Rock Mechanics and Rock Engineering, vol. 53, 2019

Inert and adsorptive tracer tests for field measurement of flow-wetted surface area

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A. J. Hawkins, M. W. Becker, J. W. Tester

Water Resources Research, vol. 54, 2018

Evaluation of inert tracers in a bedrock fracture using ground penetrating radar and thermal sensors

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A. J. Hawkins, M. W. Becker, G. Tsoflias

Geothermics, vol. 67, 2017

Measurement and simulation of heat exchange in fractured bedrock using inert and thermally degrading tracers

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A. J. Hawkins, D. B. Fox, M. Becker, J. Tester

Water Resources Research, vol. 53, 2017