2023 Publications

  • Pengju XING, Branko DAMJANAC, Zorica RADAKOVIC-GUZINA, Maurilio TORRES, Aleta FINNILA, Robert PODGORNEY, Joseph MOORE, John MCLENNAN. “Comparison of Modeling Results with Data Recorded During Field Stimulations at Utah FORGE Site.” Link
  • Benjamin WILLIS, Robert PODGORNEY. “Thermal Hydraulics Evaluation of Fluid Flow Distribution in a Multi-Stage Stimulated Enhanced Geothermal System Wellbore at the Utah FORGE Site.” Link
  • Katherine WHIDDEN, Gesa PETERSEN, Kristine PANKOW. “Seismic Monitoring of the 2022 Utah FORGE Stimulation: the View from the Surface.” Link
  • Stuart SIMMONS, Stefan KIRBY. “Mantle Helium in Cold Ground Water in the North Milford Valley and the Implications for Geothermal Resources at Roosevelt Hot Springs and the Utah FORGE EGS Field Site.” Link
  • Robert PODGORNEY, Lynn MUNDAY, Jerry LIU, Wen Jiang, Aleta FINNILA, Branko DAMJANAC, Pengju XING, Zorica RADAKOVIC-GUZINA. “Thermal-Hydraulic-Mechanical (THM) Modeling of Fluid Flow and Heat/Tracer Transport Between Injection and Production Wells at the Utah FORGE Site.” Link
  • Clay G. JONES, Kevin ENGLAND, Stuart SIMMONS, Peter ROSE, Michael MELLA, Benjamin BARKER, John MCLENNAN, Joseph MOORE. “Stimulation, Tracers and Geochemistry at Utah FORGE.” Link
  • Aleta FINNILA, Branko DAMJANAC, Robert PODGORNEY. “Development of a Discrete Fracture Network Model for Utah FORGE Using Microseismic Data Collected During Stimulation of Well 16A(78)-32.” Link

2022 Publications

  • Daniel WELLS, Fan-Chi LIN, Kristine PANKOW, Ben BAKER, John BARTLEY. “Combining Dense Seismic Arrays and Broadband Data to Image the Subsurface Velocity Structure in Geothermally Active South-Central Utah.” Link
  • Alex DZUBAY, Maria MESIMERI, Katherine M. WHIDDEN, Daniel WELLS, Kris PANKOW. “Developing a comprehensive seismic catalog using a matched-filter detector during a 2019 stimulation at Utah FORGE.” Link
  • Sang H. LEE, Ahmad GHASSEMI. “Numerical Simulation of Fluid Circulation in Hydraulically Fractured Utah FORGE Wells.” Link
  • Pengju XING, Andy WRAY, Edgar Ignacio Velez ARTEGA, Aleta FINNILA, Joseph MOORE, Clay JONES, Erik BORCHARDT, John MCLENNAN. “In-situ Stresses and Fractures Inferred from Image Logs at Utah FORGE.” Link

2021 Publications

  • Aleta FINNILA, Thomas DOE, Robert PODGORNEY, Branko DAMJANAC, Pengju XING. “Revisions to the Discrete Fracture Network Model at Utah FORGE Site” Geothermal Resources Council Transactions. Link
  • Aleta FINNILA. “Estimation of Fracture Size for a Discrete Fracture Network Model of the Utah FORGE Geothermal Reservoir Using Forward Modeling of Fracture-Borehole Intersections.” Link
  • Junichi SUGIURA, Ramon LOPEZ, Francisco BORJAS, Steve JONES, John MCLENNAN, Duane WINKLER, Matt STEVENSON, Jordan SELF. “Oil and Gas Drilling Optimization Technologies Applied Successfully to Unconventional Geothermal Well Drilling.” Link
  • Pengju XING, John MCLENNAN, Joseph MOORE. “Minimum in-situ stress measurement using temperature signatures.” Link
  • Stuart F. SIMMONS, Rick G. ALLIS, Stefan M. KIRBY, Joseph N. MOORE, Tobias P. FISCHER. “Interpretation of hydrothermal conditions, production-injection induced effects, and evidence for enhanced geothermal system- type heat exchange in response to >30 years of production at Roosevelt Hot Springs, Utah, USA.” Link
  • Pengju XING, Branko DAMJANAC, Joseph MOORE, John MCLENNAN. “Flowback Test Analyses at the Utah Frontier Observatory for Research in Geothermal Energy (FORGE) Site.”  Link
  • Maria MESIMERI, Kristine L. PANKOW, Ben BAKER, Mark HALE. “Episodic Earthquake Swarms in the Mineral Mountains, Utah Driven by the Roosevelt Hydrothermal System.” Link
  • Maria MESIMERI, Kristine L. PANKOW, James RUTLEDGE. “A Frequency-Domain-Based Algorithm for Detecting Microseismicity Using Dense Surface Seismic Arrays.” Link
  • Pengju XING, Branko DAMJANAC, Zorica RADAKOVIC-GUZINA, Aleta FINNILA, Robert PODGORNEY, Joseph MOORE, John MCLENNAN. “Numerical Simulation of Injection Tests at Utah FORGE Site.” Link
  • Stuart SIMMONS. Geothermal Resources. “Encyclopedia of Geology (2nd Ed).” Elsevier, p. 708-722. Link
  • Maria MESIMERI, Kristine PANKOW, William BARNHART, Katherine WHIDDEN, Mark HALE. “Unusual Seismic Signals in the Sevier Desert, Utah Possibly Related to the Black Rock Volcanic Field.” Link
  • Hao ZHANG, Kristine PANKOW. “High-resolution Bayesian spatial autocorrelation (SPAC) quasi-3-D Vs model of Utah FORGE site with a dense geophone array.” Link
  • John MCLENNAN. “Drilling FORGE Well 16A(78)-32: Advancing the EGS Agenda.” Link
  • Pengju XING, Duane WINKLER, Leroy SWEARINGEN, Joseph MOORE, John MCLENNAN. “In-Situ Stresses and Permeability Measurements from Testings in Injection Well 16A(78)-32 at Utah FORGE Site.” Link
  • Pengju XING, Branko DAMJANAC, Zorica RADAKOVIC-GUZINA, Aleta FINNILA, Robert PODGORNEY, Joseph MOORE, John MCLENNAN. “Numerical Investigation of Stimulation from the Injection Well at Utah FORGE Site.” Link

2020 Publications

  • Xing PENJU, John MCLENNAN, Joseph MOORE. “In-Situ Stress Measurements at the Utah Frontier Observatory for Research in Geothermal Energy (FORGE) Site.” Energies 13.21 (2020): 5842. Link
  • Joseph MOORE. “The Utah FORGE: An International Laboratory for Advancing Enhanced Geothermal Development.” Link


  • Aleta FINNILA, Robert PODGORNEY. “Exploring Hydraulic Fracture Stimulation Patterns in the FORGE Reservoir Using Multiple Stochastic DFN Realizations and Variable Stress Conditions”. Link
  • Joseph MOORE, John MCLENNAN, Kristine PANKOW, Robert PODGORNEY, Stuart SIMMONS, Phil WANNAMAKER, Clay JONES, William RICKARD, Ben BARKER, Christian HARDWICK, Stefan KIRBY. “Overview of Utah Forge Results in 2019”. Link
  • Kristine PANKOW, Maria MESIMERI, John McLENNAN, Joe MOORE. “Seismic Monitoring at the Utah Frontier Observatory for Research in Geothermal Energy”. Link
  • Robert PODGORNEY, Aleta FINILA, Ahmad GHASSEMI, John MCLENNAN, Joseph MOORE. “Reference Native State and Stimulation Models of the Utah FORGE Site”. Link
  • Stuart F. SIMMONS, Stefan KIRBY, Rick ALLIS, Joe MOORE. “Production Chemistry Evidence for an EGS-type Reservoir in Roosevelt Hot Springs and Implications for Utah FORGE”. Link
  • Philip E. WANNAMAKER, Stuart F. SIMMONS, John J. MILLER, Christian L. HARDWICK, Ben A. ERICKSON, Steve D. BOWMAN, Stefan M. KIRBY, Kurt L. FEIGL and Joseph N. MOORE. “Geophysical Activities Over the Utah FORGE Site at the Outset of Project Phase 3”. Link
  • Pengju XING, Duane WINKLER, Bill RICKARD, Ben BARKER, Aleta FINNILA, Ahmad GHASSEMI, Kristine PANKOW, Robert PODGORNEY, Joseph MOORE, John MCLENNAN. “Interpretation of In-Situ Injection Measurements at the FORGE Site”. Link

Seismological Society of America: Link

  • Maria MESIMERI, Kristine L. PANKOW. “A frequency-domain-based algorithm for detecting induced seismicity using dense surface N-arrays”.
  • Kristine L. PANKOW, Keith D. KOPER, Relu BURLACU, Ben BAKER, James C. PECHMANN, Jamie FARRELL, James HOLT. “The University of Utah Seismograph Stations: A Multifaceted Regional Earthquake Center”.
  • Amy S. RECORD, Maria MESIMERI, Kristine L. PANKOW. “Earthquake clustering in southcentral Utah”.

2019 Publications

Utah Geological Survey Bulletin:

The area around the FORGE site is among the most intensely studied portions of the Basin and Range. In support of the FORGE project, a significant amount of new information has been collected. The results of these studies will be of use to scientists investigating a broad range of geological, geochemical, geophysical topics as well as those interested in EGS development. The Utah Geological Survey volunteered to produce publication that captured the results of research at the Utah FORGE site during Phase 2B, 2018.  Fourteen papers have been contributed to this special publication. Link


  • Aleta FINNILA, Bryan FORBES, Robert PODGORNEY. “Building and Utilizing a Discrete Fracture Network Model of the FORGE Utah Site”. Link
  • Amirhossein KAMALI, Ahmad GHASSEMI, John MCLENNAN, Joseph MOORE. “Analysis of Forge DFIT Considering Hydraulic and Natural Fracture Interactions”. Link
  • Dharmendra KUMAR, Ahmad GHASSEMI. “Multistage Hydraulic Fracturing of EGS with Application to Forge”. Link
  • Robert MELLORS, Christopher SHERMAN, Pengcheng FU, John MCLENNAN, Joseph MORRIS, Frederick RYERSON, and Christina MORENCY. “Potential Use of Distributed Acoustic Sensors to Monitor Fractures and Micro-seismicity at the FORGE EGS Site”. Link
  • Joseph MOORE, John McLENNAN, Rick ALLIS, Kristine PANKOW, Stuart SIMMONS, Robert PODGORNEY, Philip WANNAMAKER, William RICKARD. “The Utah Frontier Observatory for Research in Geothermal Energy (FORGE): an International Laboratory for Enhanced Geothermal System Technology Development”. Link
  • Siavash NADIMI, Bryan FORBES, Joseph MOORE, Zhi YE, Ahmad GHASSEMI, and John MCLENNAN. “Experimental Evaluation of Effect of Hydro-Shearing on Fracture Conductivity at the Utah FORGE Site”. Link
  • Robert PODGORNEY, Aleta FINNILA, John MCLENNAN, Ahmad GHASSEMI, Hai HUNAG, Bryan FORBES, Janina Elliott. “A Framework for Modeling and Simulation of the Utah FORGE Site”. Link
  • William M. RICKARD, John MCLENNAN, Nasikul ISLAM, Ernesto RIVAS. “Mechanical Specific Energy Analysis of the FORGE Utah Well”. Link
  • Stuart SIMMONS, Stefan KIRBY, John BARTLEY, Clay JONES, Emily KLEBER, Tyler KNUDSEN, John MILLER, Kristen RAHILLY, John McLENNAN, Tobias FISCHER, Joseph MOORE, Rick ALLIS. “Update on the Geological and Geochemical Understanding of the Utah FORGE Site”. Link



2018 Publications

  • Rick Allis, Mark Gwynn, Christian Hardwick, and Joseph Moore.  The Challenge of Correcting Bottom-Hole Temperatures – an Example from FORGE 58-32, Near Milford, Utah. Link to the full paper.
  • Ozgur Balamir, Ernesto Rivas, William M. Rickard, John McLennan, Mary Mann, and Joseph Moore.  Utah FORGE Reservoir: Drilling Results of Deep Characterization and Monitoring Well 58-32. Link to the full paper.
  • Stuart F. Simmons, Joseph Moore, Rick Allis, Stefan Kirby, Clay Jones, John Bartley, Emily Kleber, Tyler Knudsen, John Miller, Christian Hardwick, Kristen Rahilly, Mark Gwynn, John McLennan, Bryan Forbes, Rob Podgorney, Kris Pankow, Phil Wannamaker and Tobias Fischer.  A revised geoscientific model for FORGE Utah EGS Laboratory. Link to the full paper.
  • Stuart F. Simmons, Stefan Kirby, Rick Allis, Joe Moore, and Tobias Fischer. Update on Production Chemistry of the Roosevelt Hot Springs Reservoir. Link to the full paper.

2017 Publications: