headshot of Andrew Bunger

Andrew Bunger

Professor
Director of Graduate Studies
Civil & Environmental Engr

about

MSc, Geological Engineering, University of Minnesota, 2002

PhD, Geological Engineering, University of Minnesota, 2005

BA, Physics/Engineering Science, Bethel University, 2000

B, Geological Engineering, University of Minnesota, 2000

Bunger, A., Higgins, J., Huang, Y., Hartz, O., & Kelley, M. (2024). Integration of triaxial ultrasonic velocity and deformation rate analysis for core-based estimation of stresses at the Utah FORGE geothermal site. GEOTHERMICS, 120, 103008.Elsevier. doi: 10.1016/j.geothermics.2024.103008.

Lu, G., Kelley, M., Raziperchikolaee, S., & Bunger, A. (2024). Modeling the Impact of Thermal Stresses Induced by Wellbore Cooldown on the Breakdown Pressure and Geometry of a Hydraulic Fracture. ROCK MECHANICS AND ROCK ENGINEERING, 57(8), 5935-5952.Springer Nature. doi: 10.1007/s00603-024-03829-2.

Mustafa, A., Kelley, M., Lu, G., & Bunger, A.P. (2024). An Integrated Machine Learning Workflow to Estimate In Situ Stresses Based on Downhole Sonic Logs and Laboratory Triaxial Ultrasonic Velocity Data. Journal of Geophysical Research: Machine Learning and Computation, 1(4).American Geophysical Union (AGU). doi: 10.1029/2024jh000318.

Benge, M., Katende, A., Rutqvist, J., Radonjic, M., & Bunger, A. (2023). Creep Properties of Shale and Predicted Impact on Proppant Embedment for the Caney Shale, Oklahoma. ROCK MECHANICS AND ROCK ENGINEERING, 56(8), 5903-5921.Springer Nature. doi: 10.1007/s00603-023-03362-8.

Bunger, A.P., Lau, H., Wright, S., & Schmidt, H. (2023). Mechanical model for geomechanical pumped storage in horizontal fluid-filled lenses. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 47(8), 1349-1372.Wiley. doi: 10.1002/nag.3517.

Lu, Q., EI-Fayoumi, A., Adachi, J., Zaki, K., & Bunger, A. (2023). Laboratory demonstration of the impact of weak interfaces and layered rock properties on hydraulic fracture containment and height growth. GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES, 9(1), 113.Springer Nature. doi: 10.1007/s40948-023-00649-6.

Lu, Y., & Bunger, A.P. (2023). Semi-analytical solution for thermo-poro-elastic stresses in a wellbore cement plug and implications for cement properties that minimize risk of failure. COMPUTERS AND GEOTECHNICS, 161, 105590.Elsevier. doi: 10.1016/j.compgeo.2023.105590.

Lu, Y., Spencer-Williams, I., Chang, N., & Bunger, A.P. (2023). Experimental study of genesis of a geologically activated and self-sealing cementing material for deep wellbore plugging and abandonment under acidic conditions. GEOENERGY SCIENCE AND ENGINEERING, 221, 111299.Elsevier. doi: 10.1016/j.petrol.2022.111299.

Luo, B., Wong, G.K., Guo, J., Fu, W., Lu, G., & Bunger, A.P. (2023). Modeling of solids particle diversion to promote uniform growth of multiple hydraulic fractures. GEOENERGY SCIENCE AND ENGINEERING, 220, 111159.Elsevier. doi: 10.1016/j.petrol.2022.111159.

Huang, Y., Zolfaghari, N., & Bunger, A.P. (2022). Cohesive element simulations capture size and confining stress dependence of rock fracture toughness obtained from burst experiments. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 160, 104799.Elsevier. doi: 10.1016/j.jmps.2022.104799.

Lu, G., Zhao, W., Zheng, J., & Bunger, A.P. (2022). Weakening effect of various pore fluids on the tensile strength of granite. GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES, 8(5), 144.Springer Nature. doi: 10.1007/s40948-022-00452-9.

Gunaydin, D., Peirce, A.P., & Bunger, A.P. (2021). Laboratory Experiments Contrasting Growth of Uniformly and Nonuniformly Spaced Hydraulic Fractures. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 126(1).American Geophysical Union (AGU). doi: 10.1029/2020JB020107.

Huang, Y., Zolfaghari, N., Ohanian, O.J.I.I.I., & Bunger, A.P. (2021). Technical Note: An inversion algorithm to estimate maximum and minimum horizontal stress based on field test data for sleeve fracturing. COMPUTERS AND GEOTECHNICS, 137, 104274.Elsevier. doi: 10.1016/j.compgeo.2021.104274.

Huang, Y., Zolfaghari, N., Ohanian, O.J.I.I.I., & Bunger, A.P. (2021). Numerical Simulation of Sleeve Fracturing for In Situ Stress Measurement Using Cohesive Elements and Its Implications. ROCK MECHANICS AND ROCK ENGINEERING, 54(9), 4505-4522.Springer Nature. doi: 10.1007/s00603-021-02554-4.

Katende, A., Rutqvist, J., Benge, M., Seyedolali, A., Bunger, A., Puckette, J.O., Rhin, A., & Radonjic, M. (2021). Convergence of micro-geochemistry and micro-geomechanics towards understanding proppant shale rock interaction: A Caney shale case study in southern Oklahoma, USA. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 96, 104296.Elsevier. doi: 10.1016/j.jngse.2021.104296.

Katende, A., Rutqvist, J., Benge, M., Seyedolali, A., Bunger, A., Puckette, J.O., Rhin, A., & Radonjic, M. (2021). Micro-geochemistry and Micro-geomechanics towards understanding proppant shale rock interaction: A Caney shale case study, USA. doi: 10.1002/essoar.10509841.2.

Lu, G., Crandall, D., & Bunger, A.P. (2021). Observations of breakage for transversely isotropic shale using acoustic emission and X-ray computed tomography: Effect of bedding orientation, pre-existing weaknesses, and pore water. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 139, 104650.Elsevier. doi: 10.1016/j.ijrmms.2021.104650.

Katende, A., Lu, Y., Bunger, A., & Radonjic, M. (2020). Experimental quantification of the effect of oil based drilling fluid contamination on properties of wellbore cement. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 79, 103328.Elsevier. doi: 10.1016/j.jngse.2020.103328.

Lu, G., Gordeliy, E., Prioul, R., Aidagulov, G., Uwaifo, E.C., Ou, Q., & Bunger, A.P. (2020). Time-Dependent Hydraulic Fracture Initiation. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 125(3).American Geophysical Union (AGU). doi: 10.1029/2019JB018797.

Thiele, S.T., Cruden, A.R., Micklethwaite, S., Bunger, A.P., & Kopping, J. (2020). Dyke apertures record stress accumulation during sustained volcanism. SCIENTIFIC REPORTS, 10(1), 17335.Springer Nature. doi: 10.1038/s41598-020-74361-w.

Wang, D., Wang, H., Li, F., Chen, M., & Bunger, A.P. (2020). Parameters affecting the distribution of pulsed proppant in hydraulic fractures. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 191, 107125.Elsevier. doi: 10.1016/j.petrol.2020.107125.

Cheng, C., & Bunger, A.P. (2019). Reduced order model for simultaneous growth of multiple closely-spaced radial hydraulic fractures. JOURNAL OF COMPUTATIONAL PHYSICS, 376, 228-248.Elsevier. doi: 10.1016/j.jcp.2018.09.004.

Cheng, C., & Bunger, A.P. (2019). Optimizing fluid viscosity for systems of multiple hydraulic fractures. AICHE JOURNAL, 65(5).Wiley. doi: 10.1002/aic.16564.

Cheng, C., & Bunger, A.P. (2019). Model-Based Evaluation of Methods for Maximizing Efficiency and Effectiveness of Hydraulic Fracture Stimulation of Horizontal Wells. GEOPHYSICAL RESEARCH LETTERS, 46(22), 12870-12880.American Geophysical Union (AGU). doi: 10.1029/2019GL084809.

Fu, W., Savitski, A.A., Damjanac, B., & Bunger, A.P. (2019). Three-dimensional lattice simulation of hydraulic fracture interaction with natural fractures. COMPUTERS AND GEOTECHNICS, 107, 214-234.Elsevier. doi: 10.1016/j.compgeo.2018.11.023.

Islam, M.N., Bunger, A.P., Huerta, N., & Dilmore, R. (2019). Bentonite Extrusion into Near-Borehole Fracture. GEOSCIENCES, 9(12), 495.MDPI. doi: 10.3390/geosciences9120495.

Zolfaghari, N., & Bunger, A.P. (2019). Numerical model for a penny-shaped hydraulic fracture driven by laminar/turbulent fluid in an impermeable rock. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 158, 128-140.Elsevier. doi: 10.1016/j.ijsolstr.2018.09.003.

Fu, W., Savitski, A.A., & Bunger, A.P. (2018). Analytical criterion predicting the impact of natural fracture strength, height and cemented portion on hydraulic fracture growth. ENGINEERING FRACTURE MECHANICS, 204, 497-516.Elsevier. doi: 10.1016/j.engfracmech.2018.10.002.

Lecampion, B., Bunger, A., & Zhang, X. (2018). Numerical methods for hydraulic fracture propagation: A review of recent trends. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 49, 66-83.Elsevier. doi: 10.1016/j.jngse.2017.10.012.

Lu, G., Gordeliy, E., Prioul, R., Aidagulov, G., & Bunger, A. (2018). Modeling simultaneous initiation and propagation of multiple hydraulic fractures under subcritical conditions. COMPUTERS AND GEOTECHNICS, 104, 196-206.Elsevier. doi: 10.1016/j.compgeo.2018.08.008.

Lu, Q., Lu, G., Prioul, R., Aidagulov, G., & Bunger, A.P. (2018). Impact of Fluid Acidity on the Time-Dependent Initiation of Hydraulic Fractures in Carbonate Rocks. ROCK MECHANICS AND ROCK ENGINEERING, 51(12), 3895-3906.Springer Nature. doi: 10.1007/s00603-018-1544-8.

Wang, D., Chen, M., Jin, Y., & Bunger, A.P. (2018). Impact of fluid compressibility for plane strain hydraulic fractures. COMPUTERS AND GEOTECHNICS, 97, 20-26.Elsevier. doi: 10.1016/j.compgeo.2017.12.009.

Wang, D., Chen, M., Jin, Y., & Bunger, A.P. (2018). Effect of Fluid Compressibility on Toughness-Dominated Hydraulic Fractures With Leakoff. SPE JOURNAL, 23(6), 2118-2132.Society of Petroleum Engineers (SPE). doi: 10.2118/193995-pa.

Winner, R.A., Lu, G., Prioul, R., Aidagulov, G., & Bunger, A.P. (2018). Acoustic emission and kinetic fracture theory for time-dependent breakage of granite. ENGINEERING FRACTURE MECHANICS, 199, 101-113.Elsevier. doi: 10.1016/j.engfracmech.2018.05.004.

Wu, B., Liu, T., Zhang, X.Wu, B., Jeffrey, R.G., & Bunger, A.P. (2018). A Transient Analytical Model for Predicting Wellbore/Reservoir Temperature and Stresses during Drilling with Fluid Circulation. ENERGIES, 11(1), 42.MDPI. doi: 10.3390/en11010042.

Xing, P., Yoshioka, K., Adachi, J., El-Fayoumi, A., & Bunger, A.P. (2018). Laboratory demonstration of hydraulic fracture height growth across weak discontinuities. GEOPHYSICS, 83(2), MR93-MR105.Society of Exploration Geophysicists. doi: 10.1190/GEO2016-0713.1.

Xing, P., Yoshioka, K., Adachi, J., El-Fayoumi, A., Damjanac, B., & Bunger, A.P. (2018). Lattice simulation of laboratory hydraulic fracture containment in layered reservoirs. COMPUTERS AND GEOTECHNICS, 100, 62-75.Elsevier. doi: 10.1016/j.compgeo.2018.03.010.

Zolfaghari, N., & Bunger, A.P. (2018). Approximate semi-analytical solution for a penny-shaped rough-walled hydraulic fracture driven by turbulent fluid in an impermeable rock. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 143, 144-154.Elsevier. doi: 10.1016/j.ijsolstr.2018.03.002.

Zolfaghari, N., Dontsov, E., & Bunger, A.P. (2018). Solution for a plane strain rough-walled hydraulic fracture driven by turbulent fluid through impermeable rock. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 42(4), 587-617.Wiley. doi: 10.1002/nag.2755.

Bunger, A.P., & Cruden, A.R. (2017). Geometric scaling of tabular igneous intrusions: implications for emplacement and growth. In Physical geology of shallow magmatic systems : dykes, sills and laccoliths, Breitkreuz, C., & Rocchi, S. (Eds.). (pp. 1-28).Springer.

Bunger, A.P., & Lecampion, B. (2017). Rock Mechanics and Engineering Volume 5. In Rock Mechanics and Engineering, Feng, X.T. (Ed.). 5, (pp. 551-593).CRC Press. doi: 10.4324/9781315708119.

Cruden, A.R., McCaffrey, K.J.W., & Bunger, A.P. (2017). Geometric Scaling of Tabular Igneous Intrusions: Implications for EmplacementLaccolithemplacement and GrowthLaccolithgrowth. In Physical Geology of Shallow Magmatic Systems. (pp. 11-38).Springer Nature. doi: 10.1007/11157_2017_1000.

Lecampion, B., Desroches, J., Jeffrey, R.G., & Bunger, A.P. (2017). Experiments versus theory for the initiation and propagation of radial hydraulic fractures in low-permeability materials. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 122(2), 1239-1263.American Geophysical Union (AGU). doi: 10.1002/2016JB013183.

Lu, G., Gordeliy, E., Prioul, R., & Bunger, A. (2017). Modeling initiation and propagation of a hydraulic fracture under subcritical conditions. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 318, 61-91.Elsevier. doi: 10.1016/j.cma.2017.01.018.

Xing, P., Yoshioka, K., Adachi, J., El-Fayoumi, A., & Bunger, A.P. (2017). Laboratory measurement of tip and global behavior for zero -toughness hydraulic fractures with circular and blade-shaped (PKN) geometry. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 104, 172-186.Elsevier. doi: 10.1016/j.jmps.2017.04.013.

Zolfaghari, N., Meyer, C.R., & Bunger, A.P. (2017). Blade-Shaped Hydraulic Fracture Driven by a Turbulent Fluid in an Impermeable Rock. JOURNAL OF ENGINEERING MECHANICS, 143(11), 04017130.American Society of Civil Engineers (ASCE). doi: 10.1061/(ASCE)EM.1943-7889.0001350.

Bunger, A.P., & Mishuris, G. (2016). Special Section on "Modeling Hydraulic Fractures". COMPUTERS AND GEOTECHNICS, 71, 281-282.Elsevier. doi: 10.1016/j.compgeo.2015.10.001.

Bunger, A.P., Kear, J., Jeffrey, R.G., Prioul, R., & Chuprakov, D. (2016). Investigation of hydraulic fracture growth through weak discontinuities with active ultrasound monitoring. CIM Journal, 7(3), 165-177.Taylor & Francis. doi: 10.15834/cimj.2016.17.

BUNGER, A.P., MENAND, T., CRUDEN, A., ZHANG, X., & HALLS, H. (2016). Swarm Theory, Hydraulic Fracturing, and the Emergence of Natural Spacing within Dyke Swarms. Acta Geologica Sinica - English Edition, 90(s1), 141-142.Wiley. doi: 10.1111/1755-6724.12936.

Chen, R., Yan, A., Zaghloul, M.A.S., Lu, G., Bunger, A.P., Miller, G.A., Cranch, G.A., & Chen, K.P. (2016). Implementation of distributed feedback fiber laser sensor for acoustic measurements in hydraulic fracturing. OPTICAL ENGINEERING, 55(9), 090506.SPIE, the international society for optics and photonics. doi: 10.1117/1.OE.55.9.090506.

Chen, R., Zaghloul, M.A.S., Yan, A., Li, S., Lu, G., Ames, B.C., Zolfaghari, N., Bunger, A.P., Li, M.J., & Chen, K.P. (2016). High resolution monitoring of strain fields in concrete during hydraulic fracturing processes. OPTICS EXPRESS, 24(4), 3894-3902.Optica Publishing Group. doi: 10.1364/OE.24.003894.

Cheng, C., & Bunger, A.P. (2016). Rapid simulation of multiple radially growing hydraulic fractures using an energy-based approach. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 40(7), 1007-1022.Wiley. doi: 10.1002/nag.2471.

Fu, W., Ames, B.C., Bunger, A.P., & Savitski, A.A. (2016). Impact of Partially Cemented and Non-persistent Natural Fractures on Hydraulic Fracture Propagation. ROCK MECHANICS AND ROCK ENGINEERING, 49(11), 4519-4526.Springer Nature. doi: 10.1007/s00603-016-1103-0.

Lakirouhani, A., Detournay, E., & Bunger, A.P. (2016). A reassessment of in situ stress determination by hydraulic fracturing. GEOPHYSICAL JOURNAL INTERNATIONAL, 205(3), 1859-1873.Oxford University Press (OUP). doi: 10.1093/gji/ggw132.

RIVALTA, E., TAISNE, B., BUNGER, A., & Richard, K. (2016). Mechanical Modeling of Dike Propagation: Methods, Recent Results and Links to Geophysics. Acta Geologica Sinica - English Edition, 90(s1), 151.Wiley. doi: 10.1111/1755-6724.12939.

Wu, B., Zhang, X., Jeffrey, R.G., Bunger, A.P., & Jia, S. (2016). A simplified model for heat extraction by circulating fluid through a closed-loop multiple-fracture enhanced geothermal system. APPLIED ENERGY, 183, 1664-1681.Elsevier. doi: 10.1016/j.apenergy.2016.09.113.

Bunger, A.P., & Cardella, D.J. (2015). Spatial distribution of production in a Marcellus Shale well: Evidence for hydraulic fracture stress interaction. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 133, 162-166.Elsevier. doi: 10.1016/j.petrol.2015.05.021.

Bunger, A.P., & Cardella, D.J. (2015). Spatial distribution of production in a Marcellus Shale well: Evidence for hydraulic fracture stress interaction. Journal of Petroleum Science and Engineering, 133, 162-166.Elsevier BV. doi: 10.1016/j.petrol.2015.05.021.

Bunger, A.P., Kear, J., Dyskin, A.V., & Pasternak, E. (2015). Sustained acoustic emissions following tensile crack propagation in a crystalline rock. INTERNATIONAL JOURNAL OF FRACTURE, 193(1), 87-98.Springer Nature. doi: 10.1007/s10704-015-0020-7.

Peirce, A.P., & Bunger, A.P. (2015). Interference Fracturing: Nonuniform Distributions of Perforation Clusters That Promote Simultaneous Growth of Multiple Hydraulic Fractures. SPE JOURNAL, 20(2), 384-395.Society of Petroleum Engineers (SPE). doi: 10.2118/172500-PA.

Regenauer-Lieb, K., Bunger, A., Chua, H.T., Dyskin, A., Fusseis, F., Gaede, O., Jeffrey, R., Karrech, A., Kohl, T., Liu, J., Lyakhovsky, V., Pasternak, E., Podgorney, R., Poulet, T., Rahman, S., Schrank, C., Trefry, M., Veveakis, M., Wu, B., Yuen, D.A., Wellmann, F., & Zhang, X. (2015). Deep geothermal: The 'Moon Landing' mission in the unconventional energy and minerals space. JOURNAL OF EARTH SCIENCE, 26(1), 2-10.Springer Nature. doi: 10.1007/s12583-015-0515-1.

Rivalta, E., Taisne, B., Bunger, A.P., & Katz, R.F. (2015). A review of mechanical models of dike propagation: Schools of thought, results and future directions. TECTONOPHYSICS, 638(C), 1-42.Elsevier. doi: 10.1016/j.tecto.2014.10.003.

Wu, B., Zhang, X., Jeffrey, R.G., Bunger, A.P., & Huddlestone-Holmes, C. (2015). Perturbation analysis for predicting the temperatures of water flowing through multiple parallel fractures in a rock mass. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 76, 162-173.Elsevier. doi: 10.1016/j.ijrmms.2015.03.013.

Bunger, A.P., Jeffrey, R.G., & Zhang, X. (2014). Constraints on Simultaneous Growth of Hydraulic Fractures From Multiple Perforation Clusters in Horizontal Wells. SPE JOURNAL, 19(4), 608-620.Society of Petroleum Engineers (SPE). doi: 10.2118/163860-PA.

Bunger, A.P., Sarout, J., Kear, J., Delle Piane, C., Detournay, E., Josh, M., & Dewhurst, D.N. (2014). Experimental chemoporoelastic characterization of shale using millimeter-scale specimens. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 118, 40-51.Elsevier. doi: 10.1016/j.petrol.2014.04.004.

Franconi, N.G., Bunger, A.P., Sejdic, E., & Mickle, M.H. (2014). Wireless Communication in Oil and Gas Wells. ENERGY TECHNOLOGY, 2(12), 996-1005.Wiley. doi: 10.1002/ente.201402067.

Kovalyshen, Y., Bunger, A.P., Kear, J., & Kasperczyk, D. (2014). Comparison between ultrasonic and photometric methods for hydraulic fracture laboratory monitoring. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 70, 368-374.Elsevier. doi: 10.1016/j.ijrmms.2014.05.008.

Zhang, X., Bunger, A.P., & Jeffrey, R.G. (2014). Mechanics of two interacting magma-driven fractures: A numerical study. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 119(11), 8047-8063.American Geophysical Union (AGU). doi: 10.1002/2014JB011273.

Bunger, A.P. (2013). Analysis of the power input needed to propagate multiple hydraulic fractures. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 50(10), 1538-1549.Elsevier. doi: 10.1016/j.ijsolstr.2013.01.004.

Bunger, A.P., Gordeliy, E., & Detournay, E. (2013). Comparison between laboratory experiments and coupled simulations of saucer-shaped hydraulic fractures in homogeneous brittle-elastic solids. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 61(7), 1636-1654.Elsevier. doi: 10.1016/j.jmps.2013.01.005.

Bunger, A.P., Menand, T., Cruden, A., Zhang, X., & Halls, H. (2013). Analytical predictions for a natural spacing within dyke swarms. EARTH AND PLANETARY SCIENCE LETTERS, 375, 270-279.Elsevier. doi: 10.1016/j.epsl.2013.05.044.

Lecampion, B., Bunger, A., Kear, J., & Quesada, D. (2013). Interface debonding driven by fluid injection in a cased and cemented wellbore: Modeling and experiments. INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 18, 208-223.Elsevier. doi: 10.1016/j.ijggc.2013.07.012.

Bunger, A.P., Zhang, X., & Jeffrey, R.G. (2012). Parameters Affecting the Interaction Among Closely Spaced Hydraulic Fractures. SPE JOURNAL, 17(1), 292-306.Society of Petroleum Engineers (SPE). doi: 10.2118/140426-PA.

Bunger, A.P., & Cruden, A.R. (2011). Modeling the growth of laccoliths and large mafic sills: Role of magma body forces. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 116(B2).American Geophysical Union (AGU). doi: 10.1029/2010JB007648.

Bunger, A.P., & Cruden, A.R. (2011). Modeling the growth of laccoliths and large mafic sills: Role of magma body forces. Journal of Geophysical Research, 116(B2).American Geophysical Union (AGU). doi: 10.1029/2010jb007648.

Bunger, A.P., & Cruden, A.R. (2011). Erratum: Modeling the growth of laccoliths and large mafic sills: Role of magma body forces (Journal of Geophysical Research (2011) 116 (B08211) (doi:10.1029/2011JB008618)). Journal of Geophysical Research: Solid Earth, 116(8).

Klee, G., Bunger, A., Meyer, G., Rummel, F., & Shen, B. (2011). In Situ Stresses in Borehole Blanche-1/South Australia Derived from Breakouts, Core Discing and Hydraulic Fracturing to 2 km Depth. ROCK MECHANICS AND ROCK ENGINEERING, 44(5), 531-540.Springer Nature. doi: 10.1007/s00603-011-0157-2.

Zhang, X., Jeffrey, R.G., Bunger, A.P., & Thiercelin, M. (2011). Initiation and growth of a hydraulic fracture from a circular wellbore. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 48(6), 984-995.Elsevier. doi: 10.1016/j.ijrmms.2011.06.005.

Bunger, A.P. (2010). Stochastic Analysis of Core Discing for Estimation of In Situ Stress. ROCK MECHANICS AND ROCK ENGINEERING, 43(3), 275-286.Springer Nature. doi: 10.1007/s00603-009-0051-3.

Bunger, A.P. (2010). The Mandel-Cryer effect in chemoporoelasticity. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 34(14), 1479-1511.Wiley. doi: 10.1002/nag.867.

Chen, Z., Bunger, A.P., Zhang, X., & Jeffrey, R.G. (2009). COHESIVE ZONE FINITE ELEMENT-BASED MODELING OF HYDRAULIC FRACTURES. ACTA MECHANICA SOLIDA SINICA, 22(5), 443-452.Springer Nature. doi: 10.1016/s0894-9166(09)60295-0.

Jeffrey, R.G., & Bunger, A.P. (2009). A Detailed Comparison of Experimental and Numerical Data on Hydraulic Fracture Height Growth Through Stress Contrasts. SPE JOURNAL, 14(3), 413-422.Society of Petroleum Engineers (SPE). doi: 10.2118/106030-PA.

Jeffrey, R.G., Bunger, A.P., Zhang, X., Rohde, A.H., & Chen, Z.R. (2009). Research for Industry. Oilfield Technology, (37-40).

Bunger, A.P. (2008). A rigorous tool for evaluating the importance of viscous dissipation in sill formation: it's in the tip. 304, (pp. 71-81).Geological Society of London. doi: 10.1144/sp304.4.

Bunger, A.P., & Detournay, E. (2008). Experimental validation of the tip asymptotics for a fluid-driven crack. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 56(11), 3101-3115.Elsevier. doi: 10.1016/j.jmps.2008.08.006.

Bunger, A.P., Jeffrey, R.G., & Detournay, E. (2008). Evolution and morphology of saucer-shaped sills in analogue experiments. 302, (pp. 109-120).Geological Society of London. doi: 10.1144/sp302.8.

Bunger, A.P., & Detournay, E. (2007). Early-time solution for a radial hydraulic fracture. JOURNAL OF ENGINEERING MECHANICS, 133(5), 534-540.American Society of Civil Engineers (ASCE). doi: 10.1061/(ASCE)0733-9399(2007)133:5(534).

Bunger, A.P. (2006). A photometry method for measuring the opening of fluid-filled fractures. MEASUREMENT SCIENCE AND TECHNOLOGY, 17(12), 3237-3244.IOP Publishing. doi: 10.1088/0957-0233/17/12/006.

Bunger, A.P., & Detournay, E. (2005). Asymptotic solution for a penny-shaped near-surface hydraulic fracture. Engineering Fracture Mechanics, 72(16), 2468-2486.Elsevier. doi: 10.1016/j.engfracmech.2005.03.005.

Bunger, A.P., & Detournay, E. (2005). Asymptotic solution for a penny-shaped near-surface hydraulic fracture. ENGINEERING FRACTURE MECHANICS, 72(16), 2468-2486. doi: 10.1016/j.engfracmech.2005.03.005.

Bunger, A.P., Detournay, E., & Garagash, D.I. (2005). Toughness-dominated hydraulic fracture with leak-off. INTERNATIONAL JOURNAL OF FRACTURE, 134(2), 175-190.Springer Nature. doi: 10.1007/s10704-005-0154-0.

Bunger, A.P., Detournay, E., & Jeffrey, R.G. (2005). Crack tip behavior in near-surface fluid-driven fracture experiments. COMPTES RENDUS MECANIQUE, 333(4), 299-304.Cellule MathDoc/Centre Mersenne. doi: 10.1016/j.crme.2005.01.004.

Bunger, A.P., Jeffrey, R.G., & Detournay, E. (2005). Experimental investigation of crack opening asymptotics for fluid-driven fracture. Strength, Fracture and Complexity, 3(2-4), 139-147.

Lu, Y., Radonjic, M., Crandall, D., & Bunger, A.P. (2021). Evidence for self-restoration of olivine based cement under geothermal conditions: Olivine micro-aggregate as mitigation to Portland cement Acidic attack. In Transactions - Geothermal Resources Council, 45, (pp. 191-202).

Massion, C., Lu, Y., Bunger, A., Crandall, D., & Radonjic, M. (2021). Improvement of wellbore cement by addition of graphene nanoplatelets. In Transactions - Geothermal Resources Council, 45, (pp. 222-236).

Vissa, S.V.K., Lu, Y., Bunger, A., Crandall, D., & Radonjic, M. (2021). Natural zeolite cement blend for geothermal wellbore applications: The zeolite mechanism in making resilient cement formulations. In Transactions - Geothermal Resources Council, 45, (pp. 312-328).

Lu, Y., Spencer-Williams, I., Frizzell, N., & Bunger, A.P. (2020). Evidence for self-healing of carbonated olivine for wellbore cementing and plugging under high temperature high pressure (HTHP) reservoir conditions. In Transactions - Geothermal Resources Council, 44, (pp. 58-66).

Abell, B.C., Xing, P., Bunger, A., Dontsov, E., & Suarez-Rivera, R. (2019). Laboratory Investigation of Leak-Off During Hydraulic Fracturing into Bedding Interfaces. In Proceedings of the 7th Unconventional Resources Technology Conference.American Association of Petroleum Geologists AAPG/Datapages. doi: 10.15530/urtec-2019-900.

Dontsov, E., Bunger, A., Abell, B., & Suarez-Rivera, R. (2019). Ultrafast Hydraulic Fracturing Model for Optimizing Cube Development. In Proceedings of the 7th Unconventional Resources Technology Conference.American Association of Petroleum Geologists AAPG/Datapages. doi: 10.15530/urtec-2019-884.

Fu, W., & Bunger, A.P. (2019). 3D DEM simulation on the interference of multiple hydraulic fractures in horizontal wells. In 53rd U.S. Rock Mechanics/Geomechanics Symposium.

Fu, W., & Bunger, A.P. (2019). 3D DEM simulation on the interference of multiple hydraulic fractures in horizontal wells. In 53rd U.S. Rock Mechanics/Geomechanics Symposium.

Islam, M.N., Upadhyay, R.A., Wehner, C., & Bunger, A.P. (2017). Experimental demonstration of mechanisms for effective near-borehole crack plugging with bentonite. In ANS IHLRWM 2017 - 16th International High-Level Radioactive Waste Management Conference: Creating a Safe and Secure Energy Future for Generations to Come - Driving Toward Long-Term Storage and Disposal, (pp. 294-298).

Lu, Q., Lu, G., Bunger, A.P., Prioul, R., & Aidagulov, G. (2017). Impact of fluid acidity on the time-dependent initiation of hydraulic fractures in carbonate rocks. In 51st US Rock Mechanics / Geomechanics Symposium 2017, 1, (pp. 634-641).

Rho, S., Noynaert, S., Bunger, A.P., Zolfaghari, N., Xing, P., Abell, B., & Suarez-Rivera, R. (2017). Finite-element simulations of hydraulic fracture height growth on layered mudstones with weak interfaces. In 51st US Rock Mechanics / Geomechanics Symposium 2017, 4, (pp. 2670-2680).

Chen, R., Zaghloul, M.A.S., Yan, A., Li, S., Lu, G., Ames, B.C., Zolfaghari, N., Bunger, A.P., Li, M.J., & Chen, K.P. (2016). Imaging 3D strain field monitoring during hydraulic fracturing processes. In Udd, E., Pickrell, G., & Du, H.H. (Eds.). In Proceedings of SPIE--the International Society for Optical Engineering, 9852, (p. 98520w-98520w-6).SPIE, the international society for optics and photonics. doi: 10.1117/12.2227646.

Cheng, C., Bunger, A.P., & Peirce, A.P. (2016). Optimal Perforation Location and Limited Entry Design for Promoting Simultaneous Growth of Multiple Hydraulic Fractures. In Society of Petroleum Engineers - SPE Hydraulic Fracturing Technology Conference, HFTC 2016.Society of Petroleum Engineers (SPE). doi: 10.2118/179158-ms.

Cheng, C., Bunger, A.P., & Peirce, A.P. (2016). Optimal Perforation Location and Limited Entry Design for Promoting Simultaneous Growth of Multiple Hydraulic Fractures. In Day 1 Tue, February 09, 2016.SPE. doi: 10.2118/179158-ms.

Femau, H.C., Lu, G., Bunger, A.P., Prioul, R., & Aidagulov, G. (2016). Load-rate dependence of rock tensile strength testing: Experimental evidence and implications of kinetic fracture theory. In 50th US Rock Mechanics / Geomechanics Symposium 2016, 4, (pp. 2935-2941).

Xing, P., Bunger, A.P., Yoshioka, K., Adachi, J., & El-Fayoumi, A. (2016). Experimental study of hydraulic fracture containment in layered reservoirs. In 50th US Rock Mechanics / Geomechanics Symposium 2016, 1, (pp. 694-701).

Ames, B.C., & Bunger, A. (2015). Role of Turbulent Flow in Generating Short Hydraulic Fractures With High Net Pressure in Slickwater Treatments. SPE Hydraulic Fracturing Technology Conference.The Woodlands, Texas, USA. doi: 10.2118/173373-ms.

Bunger, A.P., & Lu, G. (2015). Time-Dependent Initiation of Multiple Hydraulic Fractures in a Formation With Varying Stresses and Strength. SPE East Regional Meeting.Charleston, WV. doi: 10.2118/171030-PA.

Bunger, A.P., Kear, J., Jeffrey, R.G., Prioul, R., & Chuprakov, D. (2015). Laboratory investigation of hydraulic fracture growth through weak discontinuities with active ultrasound monitoring. 13th International Society for Rock Mechanics (ISRM) Congress.Montreal, Canada.

Chen, R., Yan, A., Zaghloul, M., Lu, G., Bunger, A.P., Miller, G.A., Cranch, G.A., & Chen, K.P. (2015). Monitoring of Hydraulic Fracturing Using DFB Fiber Laser Acoustic Sensors. In CLEO: 2015, 2015-August, (p. sth4o.4).Optica Publishing Group. doi: 10.1364/cleo_si.2015.sth4o.4.

Chen, R., Yan, A., Zaghloul, M., Lu, G., Bunger, A.P., Miller, G.A., Cranch, G.A., & Chen, K.P. (2015). Monitoring of hydraulic fracturing using DFB fiber laser acoustic sensors. In CLEO: Science and Innovations, CLEO-SI 2015, (p. 2267). doi: 10.1364/CLEO_SI.2015.STh4O.4.

Fu, W., Ames, B.C., Bunger, A.P., & Savitski, A.A. (2015). An experimental study on interaction between hydraulic fractures and partially-cemented natural fractures. In 49th US Rock Mechanics / Geomechanics Symposium 2015, 2, (pp. 1298-1304).

Jeffrey, R.G., Chen, Z.R., Zhang, X., Bunger, A.P., & Mills, K.W. (2015). Measurement and Analysis of Full-Scale Hydraulic Fracture Initiation and Reorientation. 48th US Rock Mechanics Symposium.Minneapolis, MN. doi: 10.1007/s00603-015-0846-3.

Lecampion, B., Desroches, J., Jeffrey, R.G., Bunger, A.P., & Burghardt, J. (2015). Initiation versus breakdown pressure of transverse radial hydraulic fracture: Theory and experiments. In 13th ISRM International Congress of Rock Mechanics, 2017-January, (pp. 1-15).

Lu, G., Uwaifo, E.C., Ames, B.C., Ufondu, A., Bunger, A.P., Prioul, R., & Aidagulov, G. (2015). Experimental demonstration of delayed initiation of hydraulic fractures below breakdown pressure in granite. In 49th US Rock Mechanics / Geomechanics Symposium 2015, 4, (pp. 2715-2721).

Bunger, A.P., & Lu, G. (2014). Time-Dependent Initiation of Multiple Hydraulic Fractures in a Formation with Varying Stresses and Strength. In All Days, 2014-January(January), (pp. 341-356).Society of Petroleum Engineers (SPE). doi: 10.2118/171030-ms.

Bunger, A.P., & Peirce, A.P. (2014). Numerical Simulation of Simultaneous Growth of Multiple Interacting Hydraulic Fractures from Horizontal Wells. Shale Energy Engineering 2014.Pittsburgh, PA. doi: 10.1061/9780784413654.021.

Bunger, A.P., Kear, J., Dyskin, A.V., & Pasternak, E. (2014). Interpreting post-injection acoustic emission in laboratory hydraulic fracturing experiments. 48th US Rock Mechanics Symposium.Minneapolis, MN.

Jeffrey, R.G., Chen, Z.R., Zhang, X., Bunger, A.P., & Mills, K.W. (2014). Measurement and analysis of full-scale hydraulic fracture initiation and fracture reorientation. In 48th US Rock Mechanics / Geomechanics Symposium 2014, 2, (pp. 751-761).

Josh, M., Bunger, A., Kear, J., Sarout, J., Dewhurst, D., Raven, M.D., Delle Piane, C., Esteban, L., & Clennell, M.B. (2014). The role of specific surface area and cation exchange capacity in determining shale rock properties. 4th EAGE Shales Workshop.Porto, Portugal.

Kear, J., & Bunger, A.P. (2014). Dependence of Static Fatigue Tests on Experimental Configuration for a Crystalline Rock. 11th International Fatigue Congress.Melbourne, Australia. doi: 10.4028/www.scientific.net/amr.891-892.863.

Peirce, A.P., & Bunger, A.P. (2014). Robustness of interference fractures that promote simultaneous growth of multiple hydraulic fractures. 48th US Rock Mechanics Symposium.Minneapolis, MN.

Bunger, A.P., Jeffrey, R.G., & Zhang, X. (2013). Constraints on simultaneous growth of hydraulic fractures from multiple perforation clusters in horizontal wells. SPE Hydraulic Fracturing Technology Conference.The Woodlands, Texas.

Dewhurst, D.N., Bunger, A., Josh, M., Sarout, J., Delle Piane, C., Esteban, L., & Clennell, M.B. (2013). Mechanics, physics, chemistry and shale rock properties. Proceedings 47th US Rock Mechanics/Geomechanics Symposium.San Francisco, CA.

Dyskin, A.V., Pasternak, E., Bunger, A.P., & Kear, J. (2013). Blue Shift in the Spectrum of Arrival Times of Acoustic Signals Emitted during Laboratory Hydraulic Fracturing. In ISRM International Conference for Effective and Sustainable Hydraulic Fracturing 2013, (pp. 467-476).IntechOpen. doi: 10.5772/56448.

Kear, J., White, J., Bunger, A.P., Jeffrey, R., & Hessami, M.A. (2013). Three Dimensional Forms of Closely-Spaced Hydraulic Fractures. In ISRM International Conference for Effective and Sustainable Hydraulic Fracturing 2013, (pp. 693-707).IntechOpen. doi: 10.5772/56261.

Lecampion, B., Peirce, A., Detournay, E., Zhang, X., Chen, Z., Bunger, A., Detournay, C., Napier, J., Abbas, S., Garagash, D., & Cundall, P. (2013). The Impact of the Near-Tip Logic on the Accuracy and Convergence Rate of Hydraulic Fracture Simulators Compared to Reference Solutions. In ISRM International Conference for Effective and Sustainable Hydraulic Fracturing 2013, (pp. 855-873).IntechOpen. doi: 10.5772/56212.

Wu, B., Zhang, X., Bunger, A., & Jeffrey, R. (2013). An Efficient and Accurate Approach for Studying the Heat Extraction from Multiple Recharge and Discharge Wells. In ISRM International Conference for Effective and Sustainable Hydraulic Fracturing 2013, (pp. 929-944).IntechOpen. doi: 10.5772/56373.

Wu, B., Zhang, X.Wu, B., Jeffrey, R.G., & Bunger, A.P. (2012). A coupled model for wellbore/reservoir temperature prediction and stress analysis during fluid circulation. 46th US Rock Mechanics Symposium.Chicago, IL.

Bunger, A.P., Jeffrey, R.G., Kear, J., Zhang, X., & Morgan, M. (2011). Experimental investigation of the interaction among closely spaced hydraulic fractures. Proceedings 45th US Rock Mechanics/Geomechanics Symposium.San Francisco, CA.

Bunger, A.P., Zhang, X., & Jeffrey, R.G. (2011). Parameters Effecting the Interaction among Closely Spaced Hydraulic Fractures. All Days.The Woodlands, Texas. doi: 10.2118/140426-ms.

Lecampion, B., Quesada, D., Loizzo, M., Bunger, A., Kear, J., Deremble, L., & Desroches, J. (2011). Interface debonding as a controlling mechanism for loss of well integrity: Importance for CO2 injector wells. 10th International Conference on Greenhouse Gas Control Technologies.Amsterdam. doi: 10.1016/j.egypro.2011.02.500.

Zhang, X., Jeffrey, R.G., & Bunger, A.P. (2011). Hydraulic fracture growth from a non-circular wellbore. Proceedings 45th US Rock Mechanics/Geomechanics Symposium.San Francisco, CA.

Bunger, A., Lakirouhani, A., & Detournay, E. (2010). Modelling the effect of injection system compressibility and viscous fluid flow on hydraulic fracture breakdown pressure. Proceedings 5th International Symposium on In-situ Rock Stress.Beijing, P.R. China. doi: 10.1201/9780415601658-11.

Makhnenko, R.Y., Bunger, A.P., & Detournay, E. (2010). Deviation from linear elastic fracture in near-surface hydraulic fracturing experiments with rock. Proceedings 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium.Salt Lake City, Utah.

Zhang, X., Jeffrey, R.G., Bunger, A.P., & Thiercelin, M. (2010). Initiation and growth of a hydraulic fracture from a borehole under toughness- or viscosity- dominated conditions. In 44th US Rock Mechanics Symposium - 5th US/Canada Rock Mechanics Symposium.

Garagash, D.I., Rohde, A., & Bunger, A.P. (2009). Leading edge of a hydraulic fracture crossing a stress boundary. Proceedings 12th International Conference on Fracture.Ottawa, Canada.

Jeffrey, R.G., Bunger, A.P., Lecampion, B., Zhang, X., Chen, Z.R., Van As, A., Allison, D.P., De Beer, W., Dudley, J.W., Siebrits, E., Thiercelin, M., & Mainguy, M. (2009). Measuring hydraulic fracture growth in naturally fractured rock. SPE Annual Technical Conference and Exhibition.New Orleans, LA.

Lakirouhani, A., Bunger, A., & Detournay, E. (2008). Modeling initiation of hydraulic fractures from a wellbore. Proceedings 5th Asian Rock Mechanics Symposium.Tehran, Iran.

Wu, R., Bunger, A.P., Jeffrey, R.G., & Siebrits, E. (2008). A comparison of numerical and experimental results of hydraulic fracture growth into a zone of lower confining stress. Proceedings 2nd US-Canada Rock Mechanics Symposium.San Francisco, CA.

Bunger, A. (2007). Theoretical analysis of a shale ball subjected to chemoporomechanical loading. Rock Mechanics: Meeting Society's Challenges and Demands - Proceedings 1st Canada -US Rock Mechanics Symposium.Vancouver, Canada. doi: 10.1201/noe0415444019-c213.

Bunger, A.P., Detournay, E., Garagash, D.I., Clarkson, U., & Peirce, A.P. (2007). Numerical Simulation of Hydraulic Fracturing in the Viscosity Dominated Regime. All Days.College Station, Texas. doi: 10.2118/106115-ms.

Detournay, E., Peirce, A., & Bunger, A. (2007). Viscosity-dominated hydraulic fractures. Rock Mechanics: Meeting Society's Challenges and Demands - Proceedings 1st Canada -US Rock Mechanics Symposium.Vancouver, Canada. doi: 10.1201/noe0415444019-c207.

Jeffrey, R.G., & Bunger, A.P. (2007). A Detailed Comparison of Experimental and Numerical Data on Hydraulic Fracture Height Growth Through Stress Contrasts. All Days.College Station, Texas. doi: 10.2118/106030-ms.

Detournay, E., & Bunger, A. (2006). Similarity solutions for a shallow hydraulic fracture. In Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics, (pp. 57-62).Taylor & Francis. doi: 10.1201/9781439833469.ch6.

Bunger, A.P., Jeffrey, R.G., & Detournay, E. (2005). Experimental investigation of crack opening asymptotics for fluid-driven fracture. 11th International Conference on Fracture.

Bunger, A.P., Jeffrey, R.G., & Detournay, E. (2005). Application of scaling laws to laboratory-scale hydraulic fractures. In American Rock Mechanics Association - 40th US Rock Mechanics Symposium, ALASKA ROCKS 2005: Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions.

Bunger, A.P., Jeffrey, R.G., & Detournay, E. (2004). Toughness-dominated near-surface hydraulic fracture experiments. In Gulf Rocks 2004 - 6th North America Rock Mechanics Symposium, NARMS 2004.

Britt, L.K., Hager, C.J., & Thompson, J.W. (1994). Hydraulic Fracturing in a Naturally Fractured Reservoir. All Days.Stanford, CA. doi: 10.2118/28717-ms.

Research interests

core discing
emplacement mechanics of magma...
fracture mechanics
Hydraulic fracturing
Interaction between shale...
poroelasticity