Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)

George Moridis's Publications

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2012

Journal Papers

  • Rutqvist, J. and G.J. Moridis, Coupled Multiphase Fluid Flow and Wellbore Stability Analysis Associated with Gas Production from Oceanic Hydrate-Bearing Sediments, Paper PETROL3753R1, In Press, Journal of Petroleum Science and Engineering
  • Cossio, M., G.J. Moridis, and T. Blasingame, A Semi-Analytic Solution for Flow in Finite-Conductivity Vertical Fractures Using Fractal Theory, Paper SPE 153715, In Press, SPE Journal (doi: 10.2118/153715-PA) 
  • Kim, J., G.J. Moridis, and J. Rutqvist, Coupled Flow and Geomechanical Analysis for Gas Production in the Prudhoe Bay Unit L-106 Well Unit C Gas Hydrate Deposit in Alaska, Paper PETROL3889R1, In Press, Journal of Petroleum Science and Engineering, electronically available from http://dx.doi.org/10.1016/j.petrol.2012.04.012 (doi: 10.1016/j.petrol.2012.04.012)
  • Kim, J., G.J. Moridis, D. Yang, and J. Rutqvist, Numerical Studies on Coupled Flow and Geomechanics in Hydrate Deposits, Paper SPE 141304, SPE Journal, 17(2), 485-501, 2012 (doi: 10.2118/141304-PA)

Reports, Conference Papers and Articles

  • Kim J., and G.J. Moridis, Gas Flow Tightly Coupled to Elastoplastic Geomechanics for Tight and Shale Gas Reservoirs: Material Failure and Enhanced Permeability, SPE Paper 155640, Proceedings, Americas Unconventional Resources Conference, 5-6 June 2012, Pittsburgh, Pennsylvania.  
  • Kim J., and G.J. Moridis, Modeling and Numerical Simulation for Coupled Flow and Geomechanics in Composite Gas Hydrate Deposits, 46th U.S. Rock Mechanics/Geomechanics Symposium, 24-27 June 2012, Chicago, Illinois
  • Kim J., and G.J. Moridis, Numerical Studies for Naturally Fractured Shale Gas Reservoirs: Coupled Flow and Geomechanics in Multiple Porosity/Permeability Materials, 46th U.S. Rock Mechanics/ Geomechanics Symposium, 24-27 June 2012, Chicago, Illinois
  • Freeman, C.M., G.J. Moridis, G.E. Michael and T.A. Blasingame, Measurement, Modeling, and Diagnostics of Flowing Gas Composition Changes in Shale Gas Wells, 2012, SPE Paper 153391, Proceedings, SPE Latin American and Caribbean Petroleum Engineering Conference, Mexico City, Mexico, 16-18 April 2012 (in review, SPE Journal)
  • Cossio, M., G.J. Moridis and T.A. Blasingame, A Semi-Analytic Solution for Flow in Finite-Conductivity Vertical Fractures Using Fractal Theory, 2012, SPE Paper 153715, Proceedings, SPE Latin American and Caribbean Petroleum Engineering Conference, Mexico City, Mexico, 16-18 April 2012 (in review, SPE Journal).
  • Olorode, O.M., Freeman, C.M., G.J. Moridis and T.A. Blasingame, High-Resolution Numerical Modeling of Complex and Irregular Fracture Patterns in Shale Gas and Tight Gas Reservoirs, 2012, SPE Paper 152482, Proceedings, SPE Latin American and Caribbean Petroleum Engineering Conference, Mexico City, Mexico, 16-18 April 2012 (in review, SPE Reservoir Evaluation & Engineering).

2011

Journal Papers

  • Zhang, K., G. Moridis and K. Pruess, TOUGH+CO2: A multiphase fluid-flow simulator for CO2 geologic sequestration in saline aquifers, Computers & Geosciences, 37(6), 714-723, June 2011. (doi:10.1016/j.cageo.2010.09.011). 
  • Oldenburg, C.M., B.M. Freifeld, K. Pruess, L. Pan, S. Finsterle, and G.J. Moridis, Numerical Simulations of the Macondo Well Blowout Reveal Strong Control of Oil Flow by Reservoir Permeability and Exsolution of Gas – Electronic copy available, Proceedings of the National Academy of Sciences, 2011. (doi: 10.1073/pnas.1105165108). 
  • Freeman, C.M., Moridis, G., and T. Blasingame, A Numerical Study of Microscale Flow Behavior in Tight Gas and Shale Gas Reservoir Systems, Transport in Porous Media, 90, 253-268, 2011. (doi: 10.1007/s11242-011-9761-6).
  • Moridis, G.J., M.T. Reagan, K.L. Boyle, and K. Zhang, Evaluation of the Gas Production Potential of Challenging Hydrate Deposits, Transport in Porous Media, 90, 269-299, 2011. (doi: 10.1007/s11242-011-9762-5).
  • Anderson, B.J., M. Kurihara, M.D. White, G.J. Moridis, S.J. Wilson, M. Pooladi-Darvish, M. Gaddipati, Y. Masuda, T.S. Collett, R.B. Hunter, H.Narita, K.Rose, and R. Boswell, Regional long-term production modeling from a single well test, Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope, J. Marine Petrol. Geol., 28, 493-501, 2011 (doi: 10.1016/j.marpetgeo.2010.01.015).
  • Moridis, G.J., S. Silpngarmlert, M.T. Reagan, T.S. Collett, and K. Zhang, Gas Production From a Cold, Stratigraphically Bounded Hydrate Deposit at the Mount Elbert Site, North Slope, Alaska, J. Marine Petrol. Geol., 28, 517-534, 2011 (doi: 10.1016/j.marpetgeo.2010.01.005, LBNL-3005E).
  • Moridis, G.J., and   M.T. Reagan, Estimating the Upper Limit of Gas Production From Class 2 Hydrate Accumulations in the Permafrost, 2:   Alternative Well Designs and Sensitivity Analysis, J. Petr. Sci. Eng., 76, 124-137, 2011 (doi:10.1016/j.petrol.2010.12.001).
  • Moridis, G.J., and   M.T. Reagan, Estimating the Upper Limit   of Gas Production From Class 2 Hydrate Accumulations in the Permafrost, 1:   Concepts, System Description and the Production Base case, J. Petr. Sci. Eng., 76, 194-201, 2011 (doi:10.1016/j.petrol.2010.11.023).
  • Moridis, G.J., T.S.   Collett, M. Pooladi-Darvish, S. Hancock, C. Santamarina, R. Boswell, T.   Kneafsey, J. Rutqvist, M. Kowalsky, M.T. Reagan, E.D. Sloan, A.K. Sum and C.   Koh, Challenges, Uncertainties and   Issues Facing Gas Production From Gas Hydrate Deposits, SPE Res.   Eval. & Eng., 14(1), 76-112, 2011 (SPE-131792-PA. doi: 10.2118/131792-PA).
  • Elliott,   S.M., M. Maltrud, M.T. Reagan, G. Moridis, and P.J. Cameron-Smith, Marine Methane Cycle Simulations for the   Period of Early Global Warming, J.   Geoph. Res., 116, 2011, G01010, doi: 10.1029/2010JG001300, 2011 (LBNL-3389E).

Reports, Conference Papers and Articles

  • Oldenburg, C.M., B.M. Freifeld, K. Pruess, L. Pan, S. Finsterle and G.J. Moridis, Oil and Gas Flow-Rate Estimate for the 2010 BP Macondo Well Blowout: A Numerical Simulation Approach, 2011, submitted to the Proceedings of the National Academy of Sciences for publication in the Special Issue on Flow Rate Estimates for the BP Macondo Well Blowout.
  • Boswell, R., G. Moridis, M. Reagan and T.S. Collett, Gas Hydrates Accumulation Types and Their Application to Numerical Simulation, Proceedings, 7th International Conference on Gas Hydrates (ICGH 2011), Edinburg, Scotland, United Kingdom, July 17-21, 2011.
  • Kim, J., D. Yang, G.J. Moridis, and J. Rutqvist, Numerical Studies on Coupled Flow and Geomechanics in Hydrate Deposits, Paper   SPE 141304, 2011 Reservoir Simulation Symposium, The Woodlands, Texas, 21-23 February 2011.
  • Rutqvist, J., G.J. Moridis, J. Kim and M.T. Reagan,   Geomechanical Performance Analysis   of Potential Long-Term Tests of Gas Production from Hydrate Deposits in the North   Slope, Alaska, Paper OTC 22154, 2011 Arctic Technology Conference, Houston, Texas, 7-9 February 2011.
  • Kneafsey, T. J., and G.J. Moridis, Methane Hydrate Dissociation by Depressurization in a Mount Elbert   Sandstone Sample: Experimental Observations and Numerical Simulations, Paper OTC   944097, 2011 Arctic Technology Conference, Houston, Texas, 7-9 February 2011.
  • Reagan, M.T., G.J. Moridis, S.M. Elliott, and M.   Maltrud, Simulation of Arctic gas Hydrate Dissociation in   reposne to Climate Change: Basin-Scale Assessment, Paper OTC   22153, 2011 Arctic Technology Conference, Houston, Texas, 7-9 February 2011.
  • Moridis, G.J., M.T. Reagan, H. Anderson-Kuzma,   Y. Zhao, K. Boyle, and J. Rector, Evaluation of   the Hydrate Deposit at the PBU L-106 Site, North Slope, Alaska, for a   Long-Term Test of Gas Production, Paper OTC 944482, 2011 Arctic   Technology Conference, Houston,   Texas, 7-9 February 2011.

2010

Journal Papers

  • Li, G., G.J. Moridis, K.   Zhang and X.-S. Li, Evaluation of Gas   Production Potential from Marine Gas Hydrate Deposits in Shenhu Area of the   South China Sea, Energy & Fuels, 24,6018-6033, 2010 (doi: 10.1021/ef100930m).
  • Elliott,   S.M., Reagan, M.T., Moridis, G.J., Cameron-Smith, P.J., Geochemistry of Clathrate-Derived Methane   in Arctic Ocean Waters, Geophys.   Res. Lett., 37, L12607, doi:10.1029/2010GL043369, 2010 (LBNL-3389E).
  • Kowalsky, M.B., S. Nakagawa,   S., and G.J. Moridis, Feasibility   of Monitoring Gas-Hydrate Production With Time-Lapse Vertical Seismic   Profiling, SPE Journal, 15(3):   634-645, 2010. doi:10.2118/132508-PA (SPE-132508-PA, LBNL-3091E).
  • Anderson,   B.J., M. Kurihara, M.D. White, G.J. Moridis, S.J. Wilson, M.   Pooladi-Darvish, M. Gaddipati, Y. Masuda, T.S. Collett, R.B. Hunter,   H.Narita, K.Rose, and R. Boswell, Regional long-term production modeling   from a single well test, Mount Elbert Gas Hydrate Stratigraphic Test Well,   Alaska North Slope, In press,   Journal of Marine and Petroleum   Geology, 2010 (doi: 10.1016/j.marpetgeo.2010.01.015).
  • Moridis, G.J., S. Silpngarmlert,   M.T. Reagan, T.S. Collett, and K. Zhang, Gas   Production From a Cold, Stratigraphically Bounded Hydrate Deposit at the   Mount Elbert Site, North Slope, Alaska, In press, Journal of Marine and Petroleum Geology, 2010 (doi: 10.1016/j.marpetgeo.2010.01.005, LBNL-3005E).

Reports, Conference Papers and Articles

  • Moridis, G.J., T. Blasingame and C.M.Freeman, Analysis of   Mechanisms of Flow in Fractured Tight-Gas and Shale-Gas Reservoirs, Paper   SPE 139250, 2010 SPE Latin   American & Caribbean Petroleum Engineering Conference, Lima, Peru, 1–3   December 2010.
  • Freeman, C.M., G.J. Moridis, D. Ilk, and T.   Blasingame, A Numerical Study of Transport and Storage Effects for Tight Gas and   Shale Gas Reservoir Systems, Paper SPE 131583, 2010 CPS/SPE International   Oil & Gas Conference and Exhibition in China, Beijing, China, 8–10   June 2010.
  • Moridis, G.J., M.T. Reagan,   K.L. Boyle, and K. Zhang, Evaluation of   the Gas Production Potential of Challenging Hydrate Deposits, In review, Transport in Porous Media, 2010.
  • Reagan, M.T and G.J. Moridis,   Biological Mitigation of Methane   Release from Dissociating Gas Hydrates, In review, Geo-Marine. Lett., 2010.
  • Elliott, S.M., M. Maltrud, M.T. Reagan, G.J. Moridis, and P.J.   Cameron-Smith, Marine Methane Cycle   Simulations for the Period of Early Global Warming, In review, J. Geophysical Res. Biogeo., 2010.
  • Freeman, C.M.,   G.J. Moridis, and T. Blasingame, A   Numerical Study of Microscale Flow Behavior in Tight Gas and Shale Gas   Reservoir Systems, In review, Transport in Porous Media, 2010.
  • Zhang, K., G.J.   Moridis, N. Wu, and X. Li, Evaluation of Alternative   Horizontal Well Designs for Gas Production From Hydrate Deposits in the   Shenhu Area, South China Sea, Paper SPE   131151, 2010 CPS/SPE International Oil & Gas Conference and   Exhibition in China, Beijing, China, 8–10 June 2010.
  • Li, G., G.J.   Moridis, K. Zhang, and X. Li, The Use   of Huff and Puff Method in a Single Horizontal Well in Gas Production from   Marine Gas Hydrate Deposits in the Shenhu Area of the South China Sea,   Paper SPE 131160, 2010 CPS/SPE International Oil & Gas Conference and   Exhibition in China, Beijing, China, 8–10 June 2010.
  • Li, G., G.J.   Moridis, K. Zhang, and X. Li, The Use   of Huff and Puff Method in a Single Horizontal Well in Gas Production from   Marine Gas Hydrate Deposits in the Shenhu Area of the South China Sea,   Paper SPE 131160, 2010 CPS/SPE International Oil & Gas Conference and   Exhibition in China, Beijing, China, 8–10 June 2010.
  • Moridis, G.J., M.T.   Reagan, K. Boyle, and K. Zhang, Evaluation   of a deposit at the PBU-L106 Site,    North Slope, Alaska, for a potential long-term test of gas production   from hydrates, Paper SPE 133601, 2010 Western Regional Meeting, Anaheim,   California, May 27-29, 2010.
  • Reagan, M.T., G.J. Moridis,   M. Kowalsky and K. Zhang, Effect of   Heterogeneity on Gas Production From the Unit D Class 3 Hydrate Deposit at   the Mount Elbert Site, North Slope, Alaska, Paper SPE 132649, 2010 Western   Regional Meeting, Anaheim, California, May 27-29, 2010.
  • Moridis, G.J., M.T.   Reagan, R. Boswell, T. Collett and K. Zhang, Preliminary Evaluation of the   Production Potential of Recently Discovered Hydrate Deposits in the Gulf of   Mexico, Paper OTC 21049, 2010 Offshore Technology Conference, Houston, Texas,   May 3-6, 2010.
  • Su, Z., G.J. Moridis, K.   Zhang, R. Yang, N. Wu, Numerical Investigation of Gas Production Strategy for   the Hydrate Deposits in the Shenhu Area, Paper OTC 20551, 2010 Offshore   Technology Conference, Houston, Texas, May 3-6, 2010.
  • Hancock, S., G.J. Moridis,   S. Wilson and A. Robinson, Well Design Requirements For Deepwater And Arctic   Onshore Gas Hydrate Production   Wells, Paper OTC 19435, Paper OTC 21015, 2010 Offshore   Technology Conference, Houston, Texas, May 3-6, 2010.
  • Rutqvist, J., G.J. Moridis, and M.T. Reagan, Geomechanical Response of   Sloping Oceanic Hydrate Deposits to Thermal Loading and Production Activities, Paper OTC 21048, 2010 Offshore Technology Conference,   Houston, Texas, May 3-6, 2010.
  • Li, G., G.J. Moridis, K. Zhang and X.-S. Li, Evaluation of Gas Production Potential   from Marine Gas Hydrate Deposits in Shenhu Area of the South China Sea,   Paper OTC 20548, 2010 Offshore Technology Conference, Houston, Texas, May 3-6,   2010.
  • Moridis, G.J., T.S.   Collett, M. Pooladi-Darvish, S. Hancock, C. Santamarina, R. Boswell, T.   Kneafsey, J. Rutqvist, M. Kowalsky, M.T. Reagan, E.D. Sloan, A.K. Sum and C.   Koh, Challenges, Uncertainties and   Issues Facing Gas Production From Hydrate Deposits in Geologic Systems,   Invited Paper SPE 131792, 2010 Unconventional Gas Conference, February 23-25,   Pittsburgh, Pennsylvania.

2009

Journal Papers

  • Kneafsey, T.J., Y. Seol, G.J.   Moridis, L. Tomutsa, and B.M. Freifeld, Laboratory Measurements on   Core-Scale Sediment and Hydrate Samples to Predict Reservoir Behavior, in T.   Collett, A. Johnson, C. Knapp, and R. Boswell, eds., Natural gas   hydrates—Energy resource potential and associated geologic hazards: AAPG   Memoir 89, p. 705–713, 2009 (doi: 10.1306/13201133M893364, LBNL-59085, 2004).
  • Reagan,   M.T., and G.J. Moridis, Large-Scale   Simulation of Methane Hydrate Dissociation along the West Spitsbergen Margin, Geophysical Review Letters, 36,   L23612, 2009 (doi: 10.1029/2009GL041332, LBNL-2908E).
  • Moridis, G.J., T.S. Collett, R. Boswell, M.   Kurihara, M.T. Reagan, C. Koh and E.D. Sloan, Toward Production From   Gas Hydrates: Current Status, Assessment of Resources, and Simulation-Based   Evaluation of Technology and Potential, SPE Reservoir   Evaluation & Engineering, 12(5): 745-771, 2009 (October 2009 issue, SPE-114163-PA.   doi: 10.2118/114163-PA).
  • Gupta, A., G.J. Moridis, T.J. Kneafsey, and E.D.   Sloan, Modeling   pure methane hydrate dissociation using a numerical simulator from a novel   combination of X-ray computed tomography and macroscopic data, Energy & Fuels, 23(12): 5958-5965, 2009 (December 2009 issue,   doi: 10.1021/ef9006565).
  • Walsh, M.R., S.H. Hancock, S.J. Wilson, S.L. Patil, G.J.   Moridis, R. Boswell, T.S. Collett, C.A. Koh and E.D. Sloan, Preliminary   report on the commercial viability of gas production from natural gas   hydrates, Energy Economics,   31(5): 815-823, 2009 (September   2009 issue, doi: 10.1016/j.eneco.2009.03.006).
  • Boswell, R., D. Shelander, M. Lee, T. Latham, T. Collett,   G. Guerin, G. Moridis, M. Reagan and D. Goldberg, Occurrence   of gas hydrate in Oligocene Frio sand: Alaminos Canyon Block 818: Northern   Gulf of Mexico, Journal of   Marine and Petroleum Geology, 26(8): 1499-1512, 2009 (September 2009 issue, doi: 10.1016/j.marpetgeo.2009.03.005).
  • Moridis, G.J., M.T. Reagan, S.-J. Kim, Y.   Seol and K. Zhang, Evaluation of the   Gas Production Potential of Marine Hydrate Deposits in the Ulleung Basin of   the Korean East Sea, SPE Journal, 14(4): 759-781, 2009, SPE-110859-PA.   (December 2009 issue, doi: 10.2118/110859-PA).
  • Rutqvist, J., and G.J. Moridis, Numerical studies on   the geomechanical stability of hydrate-bearing sediments, SPE Journal, 14(2):   267-282, 2009, SPE-126129-PA. (June 2009 issue, doi: 10.2118/126129-PA).
  • Rutqvist, J., G.J. Moridis, T. Grover, and T. Collett, Geomechanical response of permafrost-associated hydrate deposits to depressurization-induced gas production, Journal of Petroleum Science and Engineering, 67:1-12, 2009 (July 2009 issue, doi: 10.1016/j.petrol.2009.02.013).

Reports, Conference Papers and Articles

  • Reagan, M.T., and G.J.   Moridis, Large-Scale Simulation of Arctic   Oceanic Gas Hydrate Dissociation in Response to Climate Change, In Review, Geophysical Research Letters.
  • Moridis, G.J., and   M.T. Reagan, Estimating the Upper Limit   of Gas Production From Class 2 Hydrate Accumulations in the Permafrost, In Review, Journal of Petroleum Science and Engineering.
  • Moridis, G.J., M.   Kowalsky, and K. Pruess, TOUGH+HYDRATE v1.1 User’s Manual:   A code for the Simulation of System Behavior in Hydrate-Bearing Geologic   Media, LBNL-00XXXE, 2009.
  • Kowalsky, M., S. Finsterle, E.   Gasperikova, G.J. Moridis, and S.S. Hubbard, Hydrogeophysical Approaches with the TOUGH Family of Codes, LBNL-2790E,   2009.
  • Zhang, K., G.J. Moridis,   and K. Pruess, TOUGH+CO2: A Multiphase   Fluid Flow Simulator for CO2 Geologic Sequestration in Saline Aquifers,   Proceedings, TOUGH Symposium 2009, Lawrence Berkeley National Laboratory,   14-16 Sept. 2009 (LBNL-2790E, 2009).
  • G.J. Moridis, M.T.   Reagan, K. Boyle and K. Zhang, Evaluation of Gas Production from Challenging   Hydrate Deposits, Proceedings, TOUGH Symposium 2009, Lawrence   Berkeley National Laboratory, 14-16 Sept. 2009 (LBNL-2790E, 2009).
  • Reagan, M.T, G.J. Moridis,   and K. Zhang, Large-Scale Simulation of   Oceanic Gas Hydrate Dissociation in Response to Climate Change, Proceedings,   TOUGH Symposium 2009, Lawrence Berkeley National Laboratory, 14-16 Sept. 2009   (LBNL-2790E, 2009).
  • Freeman, C.M., G.J. Moridis,   D. Ilk and T. Blasingame, A Numerical   Study of Microscale Flow Behavior in Tight Gas and Shale Gas Reservoir   Systems, Proceedings, TOUGH Symposium 2009, Lawrence Berkeley National   Laboratory, 14-16 Sept. 2009 (LBNL-2790E, 2009).
  • Freeman, C.M., G.J. Moridis,   D. Ilk and T. Blasingame, A numerical   study of performance for tight gas and shale gas reservoir systems, Paper   SPE 124961, presented at the 2009 SPE Annual Technical Conference and   Exhibition, New Orleans, Louisiana, October 4-7, 2009 (to be submitted for publication in the journal SPE Reservoir Evaluation and Engineering).
  • Wu, Y.S., Moridis, G.J.,   B. Bai, and K. Zhang, A multi-continuum model for gas production in tight fractured reservoirs, Paper SPE 118944, presented at the 2009 SPE Hydraulic Fracturing Technology Conference, January 19-21, 2009.
  • Moridis, G.J., S. Silpngarmlert, M.T. Reagan, T.S. Collett, and K. Zhang, Gas Production From a Cold, Stratigraphically Bounded Hydrate Deposit at the   Mount Elbert Site, North Slope, Alaska, paper submitted for publication in the Journal of Marine and Petroleum Geology.
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2008

Journal Papers

  • Reagan, M.T., and Moridis, G.J., The dynamic response of oceanic hydrate deposits to ocean temperature change, 113, C12023, Journal of Geophysical Research: Oceans (doi: 10.1029/2008JC004938, LBNL-01026E, 2008).
  • Finsterle, S., C. Doughty, M.B. Kowalsky, G.J. Moridis, L. Pan, T. Xu, Y. Zhang, and K. Pruess, Advanced Vadose Zone Simulation Using TOUGH, Vadose Zone Journal, 7:601-609, 2008 (doi: 10.2136/vzj2007.0059).

Reports, Conference Papers & Articles

  • Moridis, G.J., M. Kowalsky and K. Pruess, TOUGH+HYDRATE v1.0 User’s Manual: A code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media, LBNL-00149E, 2008.
  • Grover, T., G.J. Moridis and S. Holditch, Analysis of Reservoir Performance of the Messoyakha Hydrate Reservoir, Paper SPE 114375, presented at the 2008 SPE Annual Technical Conference and Exhibition, Denver, Colorado, September 21-24, 2008.
  • Rutqvist, J., and G.J. Moridis, A Numerical Model for Analysis of Geomechanical Performance of Hydrate-Bearing Sediments, paper ARMA 08-139, presented the 42nd U.S. Rock Mechanics Symposium, American Rock Mechanics Association, San Francisco, California, June 29-July 2, 2008.
  • Reagan, M.T., and Moridis, G.J., The dynamic response of oceanic hydrate deposits to ocean temperature change, LBNL-01026E, 2008.
  • Boswell, R., D. Shelander, M. Lee, T. Latham, T. Collett, G. Geurin, G. Moridis, M. Reagan and D. Goldberg, Occurrence of gas hydrate in Oligocene Frio sand: Alaminos Canyon Block 818: Northern Gulf of Mexico, paper submitted for publication in the Journal of Marine and Petroleum Geology
  • Anderson, B.J., J.W. Wilder, M. Kurihara, M.D. White, G.J. Moridis, S.J. Wilson, M. Pooladi-Darvish, Y. Masuda, T.S. Collett, R.B. Hunter, H. Narita, K. Rose and R. Boswell, Analysis Of Modular Dynamic Formation Test Results From The Mount Elbert-01 Stratigraphic Test Well, Milne Point Unit, North Slope Alaska, paper presented at the 6th International Conference on Gas Hydrates,Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Reagan, M.T., and G.J. Moridis, Modeling of oceanic gas hydrate instability and methane release in response to climate change, paper presented at the 6th International Conference on Gas Hydrates, Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Rutqvist, J., and G.J. Moridis, Geomechanical Response of Known Permafrost Hydrate Deposits to Depressurization and Thermal Loading, paper presented at the 6th International Conference on Gas Hydrates, Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Wilder, J.W., G.J. Moridis, S.J. Wilson, M. Kurihara, M.D. White, Y. Masuda, B.J. Anderson, T.S. Collett, R.B. Hunter, H. Narita, M. Pooladi-Darvish, K. Rose and R. Boswell, An International Effort to Compare Gas Hydrate Reservoir Simulators, paper presented at the 6th International Conference on Gas Hydrates, Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Zhang, K., and G. Moridis, A Domain Decomposition Approach for Large-Scale Simulations of Coupled Processes in Hydrate-Bearing Geologic Media, paper presented at the 6th International Conference on Gas Hydrates, Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Moridis, G.J., M.T. Reagan and K. Zhang, The Use of Horizontal Wells in Gas Production From Hydrate Accumulations, paper presented at the 6th International Conference on Gas Hydrates,Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Gullapalli, I., G.J. Moridis, S. Silpngarmlert, B. Reik, M. Kamal, E. Jones and T.Collett, Designing a Reservoir Flow Rate Experiment for the GOM Hydrate JIP Leg II LWD Drilling, paper presented at the 6th International Conference on Gas Hydrates, Vancouver, British Columbia, Canada, July 6-10, 2008.
  • Rutqvist, J., and G.J. Moridis, Coupled Hydrologic, Thermal and Geomechanical Analysis of Well Bore Stability in Hydrate-Bearing Sediments, Paper OTC 19572, 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 (in review, for publication in the SPE Journal).
  • Rutqvist, J., and G.J. Moridis, Coupled Hydrologic, Thermal and Geomechanical Analysis of Well Bore Stability in Hydrate-Bearing Sediments, Paper OTC 19572, 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 (in review, for publication in the SPE Journal).
  • Kowalsky, M., S. Nakagawa, and G.J. Moridis, Feasibility of Monitoring Gas Hydrate Production with Geophysical Methods, Paper OTC 19489, 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 (in review, for publication in the SPE Journal).
  • Reagan, M.T., G.J. Moridis and K. Zhang, Sensitivity Analysis of Gas Production from Oceanic Hydrate Deposits, Paper OTC 19433, 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 (in review, for publication in the SPE Reservoir Evaluation and Engineering).
  • Moridis, G.J., M.T. Reagan and K. Zhang, On the Performance of Class 2 and Class 3 Hydrate Deposits During Co-Production With Conventional Gas, Paper OTC 19435, 2008 Offshore Technology Conference, Houston, Texas, May 5-8, 2008 (in review, for publication in the SPE Reservoir Evaluation and Engineering).
  • Moridis, G.J., T.S. Collett, R. Boswell, M. Kurihara, M.T. Reagan, C. Koh and E.D. Sloan, Toward Production From Gas Hydrates: Current Status, Assessment of Resources, and Simulation-Based Evaluation of Technology and Potential, Invited Paper SPE 114163, (LBNL 00161E), 2008 Unconventional Reservoirs Conference, February 11-13, Keystone, Colorado (in press, SPE journal Reservoir Engineering and Evaluation).

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2007

Journal Papers & Book Chapters

  • Reagan, M.T., and G.J. Moridis, Oceanic Gas Hydrate Instability and Dissociation Under Climate Change Scenarios, Geophysical Research Letters, 34, L22709, 2007 – doi:10.1029/2007GL031671
  • Moridis, G.J., M. Kowalsky and K. Pruess, Depressurization-Induced Gas Production From Class 1 Hydrate Deposits, SPE Journal of Reservoir Evaluation & Engineering, 10(5), 458-481, 2007.
  • Moridis, G.J., and M. Kowalsky, Response of Oceanic Hydrate-Bearing Sediments to Thermal Stresses, SPE Journal, 12(2), 253-268, 2007 (SPE 111572-PA, OTC-18193, LBNL-60150, 2006)
  • Moridis, G.J., and E.D. Sloan, Gas Production Potential of Disperse Low-Saturation Hydrate Accumulations in Oceanic Sediments, Journal of Energy Conversion and Management, 48(6), 1834-1849, 2007 – doi: 10.1016/j.enconman.2007.01.23 (LBNL-52568, 2006).
  • Kowalsky, M.B., and Moridis, G.J., Comparison of Kinetic and Equilibrium Reaction Models in Simulating the Behavior of Gas Hydrates in Porous Media, Journal of Energy Conversion and Management, 48(6), 1850-1863, 2007 – doi: 10.1016/j.enconman.2007.01.017 (LBNL-60361, 2006).
  • Alp, D., M. Parlaktuna, and Moridis, G.J., Gas Production by Depressurization From Hypothetical Class 1G and Class 1W Hydrate Reservoirs, Journal of Energy Conversion and Management, 48(6), 1864-1879, 2007 – doi: 10.1016/j.enconman.2007.01.009.
  • Kneafsey, T., L. Tomutsa, G.J. Moridis, Y. Seol, B. Freifeld, C.E. Taylor and A. Gupta, Methane Hydrate Formation and Dissociation in a Partially Saturated Core-Scale Sand Sample, Journal of Petroleum Science and Engineering, 56, 108-126, 2007 – doi: 10.1016/j.petrol.2006.02.002 (LBNL-59088, 2006).

Reports, Conference Papers & Articles

  • R-118    Moridis, G.J. and M.T. Reagan, Gas Production From Class 2 Hydrate Accumulations in the Permafrost, Paper SPE 110858, 2007 SPE Annual Technical Conference and Exhibition, Anaheim, California, U.S.A., 11–14 November 2007 (in Review, for publication in the SPE journal Reservoir Engineering and Evaluation).
  • R-117    Moridis, G.J., M.T. Reagan, S.-J. Kim, Y. Seol and K. Zhang, Evaluation of the Gas Production Potential of Marine Hydrate Deposits in the Ulleung Basin of the Korean East Sea, Paper SPE 110859, 2007 SPE Asia Pacific Oil & Gas Conference and Exhibition held in Jakarta, Indonesia, 30 October–1 November 2007.
  • R-116    Finsterle, S., C. Doughty, M.B. Kowalsky, G.J. Moridis, L. Pan, T. Xu, Y. Zhang, and K. Pruess, Advanced Vadose Zone Simulation Using TOUGH, paper submitted to Vadose Zone Journal, March 2007 (LBNL number pending)
  • R-115    Moridis, G.J., and M.T. Reagan, Gas Production From Oceanic Class 2 Hydrate Accumulations, paper OTC-18866, 2007 Offshore Technology Conference, Houston, Texas, 30 April – 3 May 2007 (LBNL-62757, in Review, for publication in the SPE journal Reservoir Engineering and Evaluation).
  • R-114    Moridis, G.J., and M.T. Reagan, Strategies for Gas Production From Oceanic Class 3 Hydrate Accumulations, paper OTC-18865, 2007 Offshore Technology Conference, Houston, Texas, 30 April – 3 May 2007 (LBN-62758, in Review, for publication in the SPE journal Reservoir Engineering and Evaluation).
  • R-113    Rutqvist, J., and G.J. Moridis, Numerical Studies of Geomechanical Stability of Hydrate-Bearing Sediments, paper OTC-18860, 2007 Offshore Technology Conference, Houston, Texas, 30 April – 3 May 2007 (LBNL-62759, in Review, for publication in the SPE Journal).
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2006

Journal Papers & Book Chapters

  • J-029    T. Kneafsey, Y. Seol, G.J. Moridis, L. Tomutsa, and B. Freifeld, Laboratory Measurements on Core-Scale Sediment/Hydrate Samples to Predict Reservoir Behavior, In Press, AAPG Bulletin (LBNL-59085, 2005).
  • J-028    Gupta, A., T. Kneafsey, G.J. Moridis, Y. Seol, M.B. Kowalsky, and and E.D. Jr. Sloan, Methane Hydrate Thermal Conductivity in a Large Heterogeneous Porous Sample, Journal of Physical Chemistry B, 10.1021/jp0619639 (2006); (LBNL-59088).

Reports, Conference Papers & Articles

  • R-112    Moridis, G.J., and E.D. Sloan, 2006, Gas Production Potential of Disperse Low-Saturation Hydrate Accumulations in Oceanic Sediments, LBNL-52568 (2006)
  • R-111    Moridis, G.J., and M. Kowalsky, Response of Oceanic Hydrate-Bearing Sediments to Thermal Stresses, OTC-18193, 2006 Offshore Techology Conference, Houston, Texas, May 1-4 (2006) (LBNL-60150)
  • R-110    M. Kowalsky, M.B., and Moridis, G.J., Comparison of Kinetic and Equilibrium Reaction Models in Simulating the Behavior of Gas Hydrates in Porous Media, LBNL-60361, presented at the TOUGH 2006 Symposium (2006)
  • R-109    Moridis, G.J., and Y. Seol, Three-Dimensional Radionuclide Transport Through the Unsaturated Zone of the Yucca Mountain Site: 1. Nonsorbing TcO4- Solutes, LBNL-60639 (2006) - In review, Transport in Porous Media.
  • R-108    Seol, Y., and Moridis, G.J., Three-Dimensional Radionuclide Transport Through the Unsaturated Zone of the Yucca Mountain Site: 2. Sorbing Solutes, LBNL-60640 (2006) - In review, Transport in Porous Media.
  • R-107    Moridis, G.J., and Y. Seol, Three-Dimensional Radionuclide Transport Through the Unsaturated Zone of the Yucca Mountain Site: 3. Colloids, LBNL-60641 (2006) - In review, Transport in Porous Media.
  • R-106    Alp, D., M. Parlaktuna, and G.J. Moridis, Gas Production by Depressurization from Hypothetical Class 1G and Class 1W Hydrate Reservoirs, LBNL number pending, presented at the TOUGH 2006 Symposium (2006)
  • R-105    Gupta, A., T. Kneafsey, G.J. Moridis, Y. Seol, M.B. Kowalsky, and E.D. Jr. Sloan, Estimation of Composite Thermal Conductivity of a Heterogeneous Methane Hydrate Sample Using iTOUGH2, LBNL-60619, presented at the TOUGH 2006 Symposium (2006).
  • R-104    Moridis, G.J., and M. Kowalsky, Depressurization-Induced Gas Production from Class 1 and Class 2 Hydrate Deposits, LBNL-60366, presented at the TOUGH 2006 Symposium (2006)
  • R-103    Moridis, G.J., and K. Pruess, TOUGH+GasH2O Study of the Effects of a Heat Source Buried in the Martian Permafrost, LBNL-60364, presented at the TOUGH 2006 Symposium (2006).
  • R-102    Seol, Y., T. Kneafsey, L. Tomutsa, and G.J. Moridis, Relative Permeability Estimates for Methane Hydrate-Bearing Sand, LBNL-60368, presented at the TOUGH 2006 Symposium (2006).
  • R-101    Oldenburg, C.M., Moridis, G.J., Spycher, N., and K. Pruess, EOS7C Version 1.0: TOUGH2 Module for Carbon Dioxide or Nitrogen in Natural Gas (Methane) Reservoirs, LBNL-56589 (2006).
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2005

Journal Papers & Book Chapters

  • J-027    Moridis, G.J. and M. Reagan, A Similarity Solution for Gas Production From Dissociating Hydrate Accumulations, Transport in Porous Media, In Press (2006).
  • B-03    Moridis, G.J. and M. Kowalsky, Gas Production from Unconfined Class 2 Hydrate Accumulations in the Oceanic Subsurface, Chapter 7, in Economic Geology of Natural Gas Hydrates, M. Max, A.H. Johnson, W.P. Dillon and T. Collett, Editors, Kluwer Academic/Plenum Publishers, 249-266, 2005 (LBNL-57299).
  • B-02    Moridis, G.J. , T.S. Collett, S.R. Dallimore, T. Inoue and T. Mroz, Analysis and Interpretation of the Thermal Test of Gas Hydrate Dissociation in the JAPEX/JNOC/GSC et al. Mallik 5L-38 Gas Hydrate Production Research Well, in Geological Survey of Canada, Bulletin 585, S.R. Dallimore and T. Collett, Editors, 2005 (LBNL-57296).

Reports, Conference Papers & Articles

  • R-100    Moridis, G.J., M. Kowalsky and K. Pruess, Depressurization-Induced Gas Production From Class 1 Hydrate Deposits, presented at the 2005 SPE Annual Technical Conference and Exhibition, October 9-12, 2005, Dallas, Texas, USA (SPE paper 97266 – LBNL-59780) - In press, SPE Journal of Reservoir Evaluation & Engineering
  • R-099    Moridis, G.J., M. Kowalsky and K. Pruess, TOUGH-Fx/HYDRATE v1.0 User’s Manual: A code for the Simulation of System Behavior in Hydrate-Bearing Geologic Media, LBNL-58950, 2005.
  • R-098    Moridis, G.J., Y. Seol and T. Kneafsey, Studies of Reaction Kinetics of Methane Hydrate Dissociation in Porous Media, LBNL-57298, 2005 (Paper 1004, Proceedings of the 5th International Conference on Gas Hydrates, Trondheim, Norway, June 13-16, 2005, 21-30).
  • R-097    Kneafsey, T., L. Tomutsa, G.J. Moridis, Y. Seol, B. Freifeld, C.E. Taylor and A. Gupta, Methane Hydrate Formation and Dissociation in Partially Saturated Sand – Measurements and Observations, LBNL-57300, 2005 (Paper 1033, Proceedings of the 5th International Conference on Gas Hydrates, Trondheim, Norway, June 13-16, 2005, 213-220).
  • R-096    Gupta, A., E.D. Sloan, T. Kneafsey, L. Tomutsa and G.J. Moridis, Modeling Methane Hydrate Dissociation X-Ray CT Data Using a Heat Transfer Model, (Paper 2004, Proceedings of the 5th International Conference on Gas Hydrates, Trondheim, Norway, June 13-16, 2005, 422-427).
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2004

Journal Papers & Book Chapters

  • J-026    Moridis, G.J., T. Collett, S. Dallimore, T. Satoh, S. Hancock and B. Weatherhill, Numerical Studies Of Gas Production From Several Methane Hydrate Zones At The Mallik Site, Mackenzie Delta, Canada, Journal of Petroleum Science and Engineering, 43, 219-239, 2004.
  • J-025    Moridis, G.J., Numerical Studies of Gas Production from Class 2 and Class 3 Hydrate Accumulations at the Mallik Site, Mackenzie Delta, Canada, SPE Reservoir Evaluation and Engineering, 7(3), 175-183, 2004.
  • J-024    Hakem, N., J.A. Apps, Moridis, G.J. and I. Al Mahamid, Sorption of Fission Product Radionuclides, 137Cs and 90Sr, by Savannah River Site Sediments Impregnated with Colloidal Silica, Radiochimica Acta, 92(7), 419-432, 2004.
  • B-01    Moridis, G.J. and T. Collett, Gas Production from Class 1 Hydrate Accumulations, in Recent Advances in the Study of Gas Hydrates, C. Taylor and J. Qwan, Editors, Kluwer Academic/Plenum Publishers (Section I, Chapter 6, 75-88).
  • J-023    Oldenburg, C.M., S.W. Webb, K. Pruess and G.J. Moridis, Mixing of Stably Stratified Gases in Subsurface Reservoirs:  A Comparison of Diffusion Models, Transport in Porous Media, 54, 323-334, 2004.

Reports, Conference Papers & Articles

  • R-095    Moridis, G. J. and Y. Seol, Technical Basis Document 10, Unsaturated Zone Transport, BSC, NV, LBID-2542, 2004.
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2003

Journal Papers & Book Chapters

  • J-022    Moridis, G.J., Numerical Studies of Gas Production From Methane Hydrates, SPE Journal, 32(8), 359-370, 2003 (SPE paper 87330 - LBNL-49765).
  • J-021    Moridis, G.J., Q. Hu, Y.-S. Wu, and G.S. Bodvarsson, Preliminary 3D Site-Scale Studies of Radioactive Colloid Transport in the Unsaturated Zone at Selected Yucca Mountain Locations, Journal of Contaminant Hydrology, 60, 25-286, 2003 (LBNL-45876).

Reports, Conference Papers & Articles

  • R-094    Moridis, G. J., Y. Seol, H.H. Liu, and A. Meijer, Radionuclide Transport Models Under Ambient Conditions, Modeling Report U0060 Rev. 01, MDL-NBS-HS-000008 REV01, Las Vegas, Nevada, Bechtel SAIC Company, 2003.
  • R-093    Moridis, G.J. and T. Collett, Strategies for Gas Production From Hydrate Accumulations Under Various Geologic Conditions, LBNL-52568, presented at the TOUGH Symposium 2003, Berkeley, CA, May 12-14, 2002.
  • R-092    Moridis, G.J. Y. Seol and Y.-S. Wu, Modeling Studies of Mountain-Scale Radionuclide Transport in the Unsaturated Zone at Yucca Mountain, Nevada, LBNL-52567, presented at the TOUGH Symposium 2003, Berkeley, CA, May 12-14, 2003.
  • R-091    Moridis, G.J. and J. Qwan, Numerical Studies of Hydrate Preservation in Cores and of Gas Production from Permafrost Hydrate Accumulations, LBNL-52828, June 2003.
  • R-090    Moridis, G.J., EOS9nT V2.0 User's Manual - A FORTRAN 90 Simulator of Water Flow and Solute/Colloid Transport in the Subsurface, LBNL-52826, May 2003.
  •     Moridis, G.J., and T. Collett, Evaluation of Gas Production From Class 1 Deposits of Hydrates, LBNL-52827.
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2002

Journal Papers & Book Chapters

  • J-020    Moridis, G.J., Semianalytical Solutions of Radioactive or Reactive Solute Transport in Variably-Fractured Layered Media, Water Resources Research, 38(12), 1310, doi: 10.1029/2001WR001028, 46-1 to 46-24, 2002 (LBNL-45871).

Reports, Conference Papers & Articles

  • R-089    Moridis, G.J., Numerical Studies of Gas Production From Methane Hydrates, presented at the SPE 2002 Gas Technology Symposium, April 29-May 2, 2002, Calgary, Alberta, Canada (SPE paper 75691 - LBNL-49765).
  • R-088    Moridis, G.J., T. Collett, S. Dallimore, T. Satoh, S. Hancock and B. Weatherhill, Numerical Studies Of Gas Production Scenarios Hydrate Accumulations at the Mallik Site, Mackenzie Delta, Canada, 4th International Conference on Gas Hydrates, Yokohama, Japan, May 19-23, 2002, Proceedings, Vol. 1, pp. 239-244 (LBNL-49764).
  • R-087    Moridis, G.J., Numerical Simulation Studies of Thermally-Induced Gas Production From Hydrate Accumulations With No Free Gas Zones at the Mallik Site, Mackenzie Delta, Canada, presented at the SPE 2002 Asia Pacific Oil and Gas Conference and Exhibition, Melbourne, Australia, October 8-10, 2002 (SPE paper 77861 – LBNL-50256).
  • R-086    Moridis, G.J., T. Collett, S. Dallimore, T. Satoh, S. Hancock and B. Weatherhill, Numerical Studies Of Gas Production From Several Methane Hydrate Zones At The Mallik Site, Mackenzie Delta, Canada, LBNL-50257, November 2002.
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2001

Reports, Conference Papers & Articles

  • R-085    Moridis, G. J., Radioactive or Reactive Tracer Transport in Flowing Fracture-Matrix Systems; LBNL - 47951, 2001.
  • R-084    Moridis, G. J., and K. Pruess, Numerical Simulation of Gas Production From Hydrate Accumulations, LBNL-47998, 2001.
  • R-083    Moridis, G. J., and K. Pruess, Analysis of Gas Production Scenarios From Hydrate Zones A through C of the Mallik Fields, LBNL-47999, 2001.
  • R-082    Moridis, G. J., Analysis of Gas Production Scenarios From Hydrate Target Zones 1 and 2 of the Mallik Field, LBNL-48000, May 2001.
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2000

Journal Papers & Book Chapters

  • J-019    Hakem, N.L., I. Al Mahamid. J. Apps, and G.J. Moridis, Sorption of Cesium and Strontium on Hanford Soil, Journal of Radioananlytical and Nuclear Chemistry, 246(2), 275-278, 2000.
  • J-018    Borglin, S.E., G.J. Moridis, and C.M. Oldenburg, Experimental Studies of the Flow of Ferrofluids in Porous Media, Transport in Porous Media, 41, 61-80, 2000.
  • J-017    Oldenburg, C., S.E. Borglin, and G. J. Moridis, Numerical Simulation of Ferrofluid Flow for Subsurface Environmental Applications, Transport in Porous Media, 38, 319-344, 2000.

Reports, Conference Papers & Articles

  • R-081    Moridis, G. J., and Q. Hu, Radionuclide Transport Models Under Ambient Conditions, Civilian Radioactive Waste Management System Management and Operation (CRWMS M&O), Analysis Modeling Report U0060 Rev. 00, MDL-NBS-HS-000008 REV00. Las Vegas, Nevada, CRWMS M&O, 2000.
  • R-080    Moridis, G. J., Q. Hu, Y.-S. Wu, and G.S. Bodvarsson, Modeling Studies of Radionuclide Transport in the Unsaturated Zone at Yucca Mountain, Nevada, LBNL Report No. 45870, May 2000.
  • R-079    Moridis, G. J., Semianalytical Solutions of Radioactive or Reactive Solute Transport in Layered Fractured Media, LBNL Report No. 45871, May 2000.
  • R-078    Moridis, G. J., Semianalytical Solutions of Radioactive or Reactive Transport of Straining Colloids in Layered Fractured Media, LBNL Report No. 45872, May 2000.
  • R-077    Moridis, G. J., Q. Hu, and G.S. Bodvarsson, Preliminary Studies of Radioactive Solute Transport in the Unsaturated Zone at Selected Yucca Mountain Locations, LBNL Report No. 45873, May 2000.
  • R-076    Moridis, G. J., Q. Hu, and G.S. Bodvarsson, Preliminary Studies of Radioactive Colloid Transport in the Unsaturated Zone at Selected Yucca Mountain Locations, LBNL Report No. 45874, May 2000.
  • R-075    Moridis, G. J., Q. Hu, Y.-S. Wu, and G.S. Bodvarsson, Preliminary 3D Site-Scale Studies of Radioactive Solute Transport in the Unsaturated Zone at Selected Yucca Mountain Locations, LBNL Report No. 45875, May 2000.
  • R-074    Moridis, G. J., Q. Hu, Y.-S. Wu, and G.S. Bodvarsson, Preliminary 3D Site-Scale Studies of Radioactive Colloid Transport in the Unsaturated Zone at Selected Yucca Mountain Locations, LBNL Report No. 45876, May 2000.
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1999

Journal Papers & Book Chapters

  • J-016    Moridis, G. J., Semianalytical Solutions for Parameter Estimation in Diffusion Cell Experiments, Water Resources Research, 35(6), 1729-1740, 1999 (LBNL Report No. 42484).
  • J-015    Moridis, G. J., S. Finsterle, and J. Heiser Evaluation of Alternative Designs for an Injectable Barrier at the Brookhaven National Laboratory Site, Water Resources Research, 35(10), 2937-2953, 1999.
  • J-014    Persoff, P., J. Apps , G. J. Moridis and J.M. Wang, Effects of Dilution and Contaminants on Colloidal Silica Grouts, ASCE Journal of Geotechnical and Geoenvironmental Engineering, 125(6), 461-469, 1999 (LBNL Report No. 40129).

Reports, Conference Papers & Articles

  • R-073    Moridis, G. J., Semi Analytical Solutions of Colloid Transport and Colloid-Assisted Radionuclide or Reactive Transport: 1 Theory, LBNL Report No. 42997, April 1999.
  • R-072    Moridis, G. J., Semi Analytical Solutions of Colloid Transport and Colloid-Assisted Radionuclide or Reactive Transport:2 Applications, LBNL Report No. 43172, May 1999.
  • R-071    Moridis, G. J., Semi Analytical Solutions for Wells With Arbitrary Completion Intervals and Independent Rates, LBNL Report No. 43171, May 1999.
  • R-070    Pruess, K., C. Oldenburg and G. J. Moridis, TOUGH2 User’s Guide, Version 2.0, LBNL Report No. 43134, May 1999.
  • R-069    Moridis, G. J., Semi Analytical Solutions for Wells With Arbitrary Completion Intervals and Independent Rates in Layered Systems, LBNL Report No. 43491, May 1999.
  • R-068    Moridis, G. J., Y. S. Wu, and K. Pruess, EOS3nT: A TOUGH2 Module for the Simulation of Nonisothermal Fluid Flow and Solute/Colloid Transport in the Subsurface; LBNL Report No. 44260, August 1999.
  • R-067    Moridis, G. J., and G.S. Bodvarsson, Semianalytical Solutions of Radioactive or Reactive Tracer Transport in Layered Fractured Media, LBNL Report No. 44155, September 1999.
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1998

Journal Papers

  • J-013    Moridis, G. J. and K. Pruess, T2SOLV:  An Enhanced Package of Solvers for the TOUGH2 Family of Reservoir Simulation Codes, Geothermics, 27(4), 415-444, 1998 (LBNL Report No. 40933).
  • J-012    Moridis, G. J., A. James and C. Oldenburg, Development of a Design Package for a Viscous Barrier at the Savannah River Site, Land Contamination and Reclamation, 5(3), 149-153, 1998 (LBNL Report No. 40933).
  • J-011    Persoff, P., G. J. Moridis, J. Apps and K. Pruess, Evaluation Tests for Colloidal Silica in Grouting Applications, ASTM Journal of Testing and Evaluation, 21(3), 264-269, 1998 (LBNL Report No. 39497).
  • R-066    Moridis, G. J., and C. M. Oldenburg, Fundamentals of Ferrofluid Flow in Porous Media, LBNL Report No. 41486, March 1998.
  • R-065    Moridis, G. J., S. Borglin, C. Oldenburg, and A. Becker, FY 1997 Annual Report: Theoretical and Experimental Investigations of Ferrofluids for Guiding and Detecting Liquids in the Subsurface, LBNL Report No. 41069, March 1998.
  • R-064    Moridis, G. J., Y.-S. Wu, and K. Pruess, EOS9nT: A TOUGH2 Module for Flow and Solute/Colloid Transport, LBNL Report No. 41639, April 1998.
  • R-063    Moridis, G. J., TOUGH90: A FORTRAN90 Implementation of TOUGH2, LBNL Report No. 41640, April 1998.
  • R-062    Pruess, K., C. M. Oldenburg, and G. J. Moridis, Overview of TOUGH2, Version 2.0, LBNL Report No. 41640, April 1998.
  • R-061    Oldenburg, C. M., and G. J. Moridis, Ferrofluid Flow for TOUGH2, LBNL Report No. 41608, April 1998.
  • R-060    Moridis, G. J., Evaluation of Alternative Designs for an Injectable Barrier at the Brookhaven National Laboratory Site, LBNL Report No. 41763, May 1998.
  • R-059    Moridis, G. J., Semianalytical Solutions for Parameter Estimation in Diffusion Cell Experiments, LBNL Report No. 41857, May 1998.
  • R-058    Moridis, G. J., J. Apps, and N. Hakem, Diffusion and Sorption Parameters in Soils From the Savannah River and Hanford Sites, in review, LBNL Report No. 41878, May 1998.
  • R-057    Moridis, G. J., Semianalytical Solutions for Barrier Performance Evaluation in Contaminant Isolation Applications, LBNL Report No. 41910, June 1998.
  • R-056    Moridis, G. J., Semianalytical Solutions for Heterogeneous Systems in Diffusion Cell Experiments, LBNL Report No. 41977, June 1998.
  • R-055    Moridis, G. J., J. A. Apps, and N. Hakem, Diffusion and Sorption Parameters In Soils From the Savannah River and Hanford Sites, LBNL Report No. 41878, June 1998.
  • R-054    Moridis, G. J., Y. S. Wu, and K. Pruess, EOS9nT: A TOUGH2 Module for the Simulation of Water Flow and Solute/Colloid Transport of Reactants/ Radionuclides in the Subsurface; LBNL Report No. 42351, October 1998.
  • R-053    Moridis, G. J., J. A. Apps, K. Pruess and L. Myer, EOSHYDR: A TOUGH2 Module for CH4-Hydrate Release and Flow in the Subsurface, LBNL Report No. 42386, October 1998.
  • R-052    Moridis, G. J. and S. Finsterle, Semianatytical Solutions For Parameter Estimation in Diffusion Cell Experiments with Sampling, LBNL Report No. 42619, December 1998.
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1997

Reports, Conference Papers & Articles

  • R-051    Moridis, G.J., and K. Pruess, T2SOLV:  An Enhanced Package of Solvers for the TOUGH2 Family of Codes, LBNL Report No. 39496, January 1997.
  • R-050    Hakem, N., I.Al-Mahamid, J. Apps, and G. Moridis, Sorption of Cs-137 and Sr-88 on Colloidal Silica Injectable Barriers, LBNL Report No. 39498, March 1997.
  • R-049    Oldenburg, C., and G.J. Moridis, On Modeling Flow and Transport of Magnetic Fluids in porous Media, LBNL Report No. 40146, March 1997.
  • R-048    Borglin, S., and G.J. Moridis, Experimental Investigations of Magnetically-Driven Flow of Ferrofluids Through Porous Media, LBNL Report No. 40126, March 1997.
  • R-047    Das, K., A. Becker and G.J. Moridis, Magnetic Detection of Ferrofluid Injection Zones, LBNL Report No. 40127, March 1997.
  • R-046    Moridis, G.J., and C. Oldenburg, Ferrofluid flow in porous media, LNBL Report No. 40167, September 1997.
  • R-045    Pruess, K., C. Oldenburg, G. Moridis and S. Finsterle, Water Injection into Vapor- and Liquid-Dominated Reservoirs: Modeling of Heat Transfer and Mass Transport, LBNL Report No. 40120, March 1997.
  • R-044    Hakem, N., G.J. Moridis and J. Apps, Sorption of Cesium and Strontium on Savannah River Soils Impregnated with Colloidal Silica, LBNL Report No. 40328, June 1997.
  • R-043    Moridis, G.J., J. Apps and G. Bodvarsson, C-14 Analysis Using the UZ Model (Chapter 18), in The Site-Scale Unsaturated Zone Model of Yucca Mountain, Nevada, for the Viability Assessment (G.S. Bodvarsson, T.M. Bandurraga and Y.S. Wu, editors), LBNL Report No. 40376, June 1997
  • R-042    Moridis, G.J., S. Borglin, C. Oldenburg, and A. Becker, FY 1997 Annual Report, Theoretical and Experimental Investigations in the Use of Ferrofluids to Guide and Detect Liquids in the Subsurface, LBNL Report No. 410698, December 1997.
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1996

Journal Papers & Book Chapters

  • J-010    Moridis, G.J., M. Nikolaou, and Y. You, The Use of Wavelet Transforms in the Solution of Two-Phase Flow Problems, SPE Journal, 1(2), 169-178, 1996 (LBL Report No. 36328).

Reports, Conference Papers & Articles

  • R-041    Lundy, D.Z., J. Hunter-Cevera, and G. Moridis, Susceptibility of Colloidal Silica and Polysiloxane to Degradation by Soil Microorganisms, LBL Report No. 38024, January 1996.
  • R-040    Moridis, G.J., and K. Pruess, Verification and Validation of the TOUGH2 Family of Codes, LBL Report No. 38202, January 1996.
  • R-039    Pruess, K., A. Simmons, Y.S. Wu, and G.J. Moridis, TOUGH2 Software Qualification, LBL Report No. 38383, February 1996.
  • R-038    Moridis, G.J., J. Apps, P. Persoff, L. Myer, S. Muller, P. Yen, and K. Pruess, A Field Test of a Waste Containment Technology Using a New Generation of Injectable Barrier Liquids, LBL Report No. 38817, August 1996.
  • R-037    Finsterle, S., C.M. Oldenburg, A.L. James, K. Pruess, and G.J. Moridis, Mathematical Modeling of Permeation Grouting and Subsurface Barrier Performance, LBNL Report No. 39419, September 1996.
  • R-036    Freifeld, B., L. Myer, G. Moridis, P. Cook, A. James, L. Pellerin, and K. Pruess, Lance Water Injection Tests Adjacent to the 281-3H Retention Basin at the Savannah River Site, Aiken, South Carolina, LBNL Report No. 39028, September 1996.
  • R-035    Moridis, G.J., P. Yen, P. Persoff, S. Finsterle, P. Williams, L. Myer, and K. Pruess, A Design Study for a Medium-Scale Demonstration of the Viscous Barrier Technology, LBNL Report No. 38916, September 1996.
  • R-034    Moridis, G.J., K. Nihei, K.H. Lee, W. Frangos, D. Hopkins, C. Garbesi, S. Finsterle, D. Vasco, and K. Pruess, Technologies for Subsurface Barrier Monitoring and Verification, LBNL Report No. 38917, September 1996.
  • R-033    Moridis, G.J., A. James, and C. Oldenburg, Development of a Design Package for a Viscous Barrier at the Savannah River Site, LBNL Report No. 39487, October 1996.
  • R-032    Persoff, P., G. Moridis, D.M. Tuck, and M.A. Phifer, Laboratory Testing of Closure Cap Repair Techniques, LBNL Report No. 39324, October 1996.
  • R-031    Moridis, G.J., P. Persoff, J. Apps, A. James, C. Oldenburg, A. McGrath, B. Freifeld, L. Myer, L. Pellerin, and K. Pruess, A Design Study for the Isolation of the 281-3H Retention Basin at the Savannah River Site Using the Viscous Barrier Technology, LBNL Report No. 38920, November 1996.
  • R-030    Persoff, P., G. Moridis, J. Apps, and K. Pruess, Evaluatione Tests for Colloidal Silica to be Used for Grouting at the Savannah River Site, South Carolina, LBNL Report No. 39348, December 1996.
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1995

Journal Papers & Book Chapters

  • J-009    Moridis, G.J., The Transformational Decomposition (TD) Method for Compressible Fluid Flow Simulations, SPE Advanced Technology Series, 3(1), 101-110, March 1995, (LBL Report No. 33149).

Reports, Conference Papers & Articles

  • R-029    Antunez, E., G. Moridis, and K. Pruess, Large-Scale Three-Dimensional Geothermal Reservoir Simulation on Small Machines, LBL Report No. LBL-36873, March 1995.
  • R-028    Moridis, G.J., and K. Pruess, Flow and Transport Simulations UsingT2CG1, A Package of Preconditioned Conjugate Gradient Solvers for the TOUGH2 Family of Codes, LBL Report No. 36235, April 1995.
  • R-027    Moridis, G.J., A New Set of Direct and Iterative Solvers for the TOUGH2 Family of Codes, LBL Report No. 37066, April 1995.
  • R-026    Moridis, G.J., and K. Pruess, Air Barriers for Waste Containment in the Subsurface, LBL Report No. 37067, April 1995.
  • R-025    Moridis, G.J., and D. Reddell, The Laplace Transform Finite Difference Method for the Solution of the Solute Transport Problem in Groundwater: 1. Theory, LBL Report No. 37148, May 1995.
  • R-024    Moridis, G.J., and D. Reddell, The Laplace Transform Finite Difference Method for the Solution of the Solute Transport Problem in Groundwater: 2. Verification and Evaluation, LBL Report No. 37149, May 1995.
  • R-023    Rushing, J., and G.J. Moridis, An Experimental Investigation of Colloidal Silica as a Contaminant Barrier, LBL Report No. 37484, June 1995.
  • R-022    Moridis, G.J., L. Myer, P. Persoff, S. Finsterle, J.A. Apps, D. Vasco, S. Muller, P. Yen, P. Williams, B. Freifeld, and K. Pruess, First-Level Field Demonstration of Subsurface Barrier Technology Using Viscous Liquids,  LBL Report No. 37520, July 1995.
  • R-021    Persoff, P., S. Finsterle, G.J. Moridis, J. Apps, K. Pruess, and S. Muller, Injectable Barriers for Waste Isolation , LBL Report No. 36884, July 1995.
  • R-020    Moridis, G.J., P. Persoff, J.A. Apps, L. Myer, K. Pruess, and P. Yen, A Field Test of Permeation Grouting in Heterogeneous Soils Using a New Generation of Barrier Liquids,  LBL Report No. 37554, August 1995.
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1994

Journal Papers & Book Chapters

  • J-008    Moridis, G.J., D.A. McVay, and D.L. Reddell, The Laplace Transform Finite Difference (LTFD) Method for the Simulation of Compressible Liquid Flow in Reservoirs, SPE Advanced Technology Series, 2(2), 122-131, 1994 (LBL Report No. 32060).
  • J-007    Moridis, G.J., and E. J. Kansa, The Laplace Transform MultiQuadrics method: A Highly Accurate Scheme for the Numerical Solution of Linear Partial Differential Equations, Journal of Applied Science & Computations, 1(2), 375-407, 1994 (LBL Report No. 35011).

Reports, Conference Papers & Articles

  • R-019    Antunez, E., G. Moridis, and K. Pruess, Large-scale three-dimensional geothermal reservoir simulation on PCs, LBL Report No. 35192, January 1994.
  • R-018    Finsterle, S., G.J. Moridis, K. Pruess, and P. Persoff, Physical Barriers Formed From Gelling Liquids: 1. Numerical Design of Laboratory and Field Experiments.  LBL Report No. 35113,
    January 1994.
  • R-017    Moridis, G.J., K. Pruess, and E. Antunez, T2CG1, A Package of Preconditioned Conjugate Gradient Solvers for TOUGH2, LBL Report No. 35518, February 1994.
  • R-016    S. Finsterle, G.J. Moridis, and K. Pruess, A TOUGH2 Equation-of-State Module for the Simulation of Two-Phase Flow of Air, Water, and a Miscible Gelling Liquid, LBL Report No. 36086, May 1994.
  • R-015    Persoff, P., G.J. Moridis, J. Apps, K. Pruess, and S. Muller, Designing Injectable Colloidal Silica Barriers for Waste Isolation at the Hanford Site (LBL Report No. 35447), Proceedings of the 33rd Hanford Symposium on Health and Environment, "In-Situ Remediation: Scientific Basis for Current and Future Technologies", pg. 87-101, November 1994.
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1993

Reports, Conference Papers & Articles

  • R-014    Moridis, G.J., P. Persoff, H.-Y. Holman, S.J. Muller, K. Pruess, and C.J. Radke, New Barrier Fluids for Subsurface Containment of Contaminants. In Proceedings of the ER '93 Environmental Remediation Conference, pp. 941-948, October 24-28, Augusta, Georgia, and LBL Report No. LBL-34673, October 1993.
  • R-013    Moridis, G.J., P. Persoff, H.-Y. Holman, S.J. Muller, K. Pruess, P. Witherspoon, and C.J. Radke, FY93 ANNUAL REPORT, Containment of Contaminants Through Physical Barriers From Viscous Liquids Emplaced Under Controlled Viscosity Conditions. LBL Report No. 35114, October 1993.
  • R-012    Moridis, G.J., and D. A. McVay, The Transformational Decomposition (TD) method for compressible fluid flow simulations,  SPE paper 25264, Proceedings, 12th SPE Symposium on Reservoir Simulation, Feb. 28 - March 3, New Orleans, Louisiana, 1993, pp. 359-373, 1993.
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1992

Journal Papers

  • J-006    Moridis, G.J., and M. Alagcan, High Frequency Basin Irrigation Design for Upland Crops in Ricelands, ASCE Journal of Irrigation and Drainage, 118(4), pp. 564-583, 1992.

Reports, Conference Papers & Articles

  • R-011    Antunez, E., G. Moridis, and K. Pruess, Large-scale three-dimensional geothermal reservoir simulation on PCs, LBL Report No. 35192, January 1994.
  • R-010    Moridis, G.J., and E. J. Kansa, The method of Laplace Transform MultiQuadrics (LTMQ) for the solution of the groundwater flow equation, in Advances in Computer Methods for Partial Differential Equations VII, edited by R. Vichnevetsky, D. Knight, and G. Richter, pp. 539-545, 1992.
  • R-009    Moridis, G.J., Alternative Formulations of the Laplace Tranform Boundary Element (LTBE) Numerical Method for the Solution of Diffusion-Type Equations,, in Boundary Element Technology VII, edited by C.A. Brebbia and M.S. Ingber, pp. 815-834, , Computational Mechanics Publications and Elsevier Applied Sciences, London, 1992.
  • R-008    Moridis, G.J., and K. Pruess, TOUGH Simulation of the Updegraff Set of Fluid and Heat
    Flow Problems, LBL Report No. 32611, November 1992.
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1991

Journal Papers

  • J-005    Moridis, G.J., and D.L. Reddell, The Laplace Transform Finite Difference (LTFD) method for simulation of flow through porous media, Water Resources Research, 27(8), 1873-1884, 1991.
  • J-004    Moridis, G.J., and D.L. Reddell, Secondary Recovery of Water by Air Injection: 1. The Concept and the Mathematical and Numerical Model, Water Resources Research, 27(9), 2337-2352, 1991.
  • J-003    Moridis, G.J., and D.L. Reddell, Secondary Recovery of Water by Air Injection: 2. The Simultaneous Solution Method, Water Resources Research, 27(9), 2353-2368, 1991.
  • J-002    Moridis, G.J., and D.L. Reddell, Secondary Recovery of Water by Air Injection: Evaluation of Feasibility, Water Resources Research, 27(9), 2369-2379, 1991

Reports, Conference Papers & Articles

  • R-007    Moridis, G.J., and D.L. Reddell, The Laplace Transform Boundary Element (LTBE) numerical method for the solution of diffusion-type equations, in Boundary Elements XIII, edited by C.A. Brebbia and G. S. Gibson, pp. 83-97, Computational Mechanics Publications and Elsevier Applied Sciences, London, 1991.
  • R-006    Moridis, G.J., D.A. McVay, D.L. Reddell, and T.A. Blasingame, The Laplace Transform Finite Difference (LTFD) method for the simulation of compressible fluid flow in reservoirs, SPE Paper 22888, Proceedings, Society of Petroleum Engineers 66th Annual Technical Conference, Dallas, Texas, October 6-9, 1991.
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pre-1990

Journal Papers & Book Chapters

  • J-001    James, W. P., K. Laza, F. Bell, G. Moridis, and K. Kim, Two-dimensional Groundwater Modeling on Microcomputers, Journal of Water Resources Planning and Management (ASCE), 113(2), 293-307, 1987

Reports, Conference Papers & Articles

  • R-005    Moridis, G.J., and D.L. Reddell, Synthesis of Pneumatic and Hydraulic Controls for Hazardous Site Remediation: I. An implicit 3-D, three-phase immiscible flow simulator, Research Project Completion Report to the Texas Coordinating Board for Higher Education, Grant No. 4473/87, pp. 125, College Station, Texas, October 1989.
  • R-004    Moridis, G.J., and D. L. Reddell, Modeling Two-Phase Flow in the Vadose Zone, Paper 88-2629, Winter Meeting of the American Society of Agricultural Engineers, Chicago, Illinois, December 13-16, 1988.
  • R-003    Moridis, G.J., Numerical model of immiscible two-phase flow, in Continuing Studies of Secondary Recovery of Capillary Water: Recovery of Water from the Unsaturated Zone of the Ogallala Aquifer by Air Injection - Physics of Flow, Final Project Report, Texas Department of Water Resources Contract No. 14-50028, Project No. 5052, Texas Agricultural Experiment Station, Texas A&M University System, College Station, July 1985.
  • R-002    Moridis, G.J., Numerical model of two-phase flow, in Recovery of Water From the Unsaturated Zone by Air Injection: I - Design of a Large Physical Model, Research Project Completion Report, Project No. 4602, Texas Water Resources Institute, Texas A&M University, College Station, Texas, 1984.
  • R-001    Moridis, G.J., and M. J. McFarland, Modeling Soil Water Extraction from a Grain Sorghum Canopy, American Society of Agricultural Engineers, Winter Meeting, Chicago, Illinois, Paper 82-2600, December 1982.
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Patents

  • P-003    Patent No.: 7,537,058, Method of gas production from gas Hydrate reservoirs, issued on June 26, 2001.
  • P-002    Patent No.: 6,250,848 B1, Process for Guidance, Containment, Treatment, and Imaging in a Subsurface Environment Utilizing Ferrofluids, issued on June 26, 2001.
  • P-001    Patent No.: 5,836,390, A Method for Formation of Subsurface Barriers Using Viscous Liquids, issued on November 17, 1998.

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