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Technical articles

Our clients and EMGS employees have published many technical papers since 2002.
Year Title Author
2014 Channel play in Foz do Amazonas – exploration and reserve estimate using regional 3D CSEM Håkon T. Pedersen, Mike Hiner
2013 Reducing uncertainty by integrating 3D CSEM in the Mexican deep-water exploration workflow (copyright First Break) Alcocer, Garcia, Soto, Baltar, Paramo, Gabrielsen, Roth
2013 The marine controlled-source electromagnetic method in shallow water (copyright Geophysics) Rune Mittet, Jan Petter Morten
2013 Decomposition in upgoing and downgoing fields and inversion of marine CSEM data Rune Mittet, Pål Gabrielsen
2013 Reserves estimation methods for prospect evaluation with 3D CSEM data Daniel Baltar, Friedrich Roth
2013 Improved Target Imaging with a High-power Deck-mounted CSEM source F. Roth, J.E. Lie, M. Panzner, P.T. Gabrielsen
2013 Looking Through the Haze - How CSEM Can Improve Reservoir Imaging where Seismic Struggles S. Chakraborty, M. Choo, H.T. Pedersen
2013 Efficient 3D MT Inversion Using Finite-difference Time-domain Modelling S. de la Kethulle de Ryhove, J.P. Morten, K. Kumar
2013 Improved Resolution Salt Imaging from 3D CSEM Anisotropic Inversion J.P. Morten, C. Twarz, V. Valente Ricoy-Paramo, S. Sun
2013 Marine CSEM in rough bathymetry Daniil Shantsev, Lina Uri, Erlend Bjørdal, Martin Hansen
2013 Offshore sub-basalt exploration using CSEM and MT Krishna Kumar, Deepankar Borgohain, Frida Mrope, Jan Petter Morten, Martin Panzner
2013 Exploring frontier areas using 2D seismic and 3D CSEM data, as exemplified by multi-client data Pål T. Gabrielsen, Peter Abrahamson, Martin Panzner, Stein Fanavoll, Svein Ellingsrud
2012 Exploration with the use of EM data in the Barents Sea Stein Fanavoll, Svein Ellingsrud, Pål T. Gabrielsen, Raghava Tharimela, Dave Ridyard
2012 3D CSEM for Hydrocarbon Exploration in the Barents Sea Pål T. Gabrielsen, D.V. Shantsev, Stein Fanavoll
2012 Fluid substitution and production effects imaged for North Sea oil field from quantitative seismic and CSEM interpretation Jan Petter Morten, D Timko, PA Olsen
2012 Reserves estimation from 3D CSEM inversion for prospect risk analysis Daniel Baltar, Friedrich Roth
2012 Salt flank exploration - 3D CSEM imaging in the SEAM model Jan Petter Morten, Krishna Kumar
2012 Field appraisal and accurate resource estimation from 3D quantitative interpretation of seismic and CSEM data Jan Petter Morten, Stig Arne Karlsen, Friedrich Roth
2012 Experience from using 3D CSEM in the Mexican deepwater exploration program.pdf Humberto Soto, José Alcocer, Daniel Baltar, Pål Gabrielsen, Valente Paramo, Friedrich Roth
2012 Integrated interpretation of CSEM anomaly on the Nordland Ridge, Norwegian Continental Shelf Stein Fanavoll, Pål Gabrielsen
2012 Surface-towing versus deep-towing in Marine CSEM Daniil Shantsev, Friedrich Roth, Håvard Ramsfjell
2012 Feasibility of electromagnetic methods for sub-basalt exploration Frida Mrope, Claudia Twarz, Stein Fanavoll, Jan Petter Morten, Anh Kiet Nguyen, Stig-Kyrre Foss, A Colpært, Jostein Herredsvela
2012 Salt flank exploration: 3D CSEM imaging in the SEAM model Krishna Kumar, Jan Petter Morten
2012 Detection and imaging sensitivity of the marine CSEM method Rune Mittet, Jan Petter Morten
2012 Optimizing EM data acquisition for continental shelf exploration ND Barker, JP Morten, DV Shantsev
2011 The future of Marine CSEM (Copyright First Break) Roar Bekker and Jens Danielsen
2011 Value creation using electromagnetic imaging David Ridyard, EMGS and Jonny Hesthammer, Rocksource
2011 Sub-basalt Imaging Using Broadside CSEM Jan Petter Morten, Stein Fanavoll, Frida.M. Mrope & Anh Kiet Nguyen
2011 Low Noise Ag/AgCl Electric Field Sensor System for Marine CSEM and MT Applications Geir B. Havsgård, Hans R. Jensen, Alexander Kurrasch (EMGS), Howard Jones, Paul Austin, Andrew Thompson (Ultra Electronics PMES)
2011 Unlocking the Secrets of the Barents Sea Halfdan Carstens, GEO ExPro
2011 3D reservoir characterization of a North Sea oil field using quantitative seismic & CSEM interpretation Jan P. Morten and Friedrich Roth, EMGS, David Timko and Constantin Pacurar, Fugro-Jason, Anh K. Nguyen and Per A. Olsen, Statoil
2011 Anisotropic CSEM Inversion near the “Tiger” well in AC 818, Gulf of Mexico Cam Kanhalangsy, Nick Golubev, Jurgen Johann Zach, Daniel Baltar, EMGS Americas
2010 CSEM performance in light of well results (copyright SEG) Jonny Hesthammer, Aris Stefatos and Mikhail Boulaenko, Rocksource, Stein Fanavoll and Jens Danielsen, EMGS
2010 CSEM Survey over the Frigg Gas Field, North Sea Mark Hamilton, EMGS, Geir Mikkelsen, Total E&P Norge, Romain Poujardieu, EMGS and A. Price, Total E&P
2010 Shallow Water CSEM Using a Surface-towed Source Daniil Shantsev, Friedrich Roth, ClaudiaTwarz, Asbjørn Frisvoll and Anh Kiet Nguyen
2010 Fast-track Marine CSEM Processing and 3D Inversion Jan Petter Morten and Astrid Kornberg Bjørke
2010 The performance of CSEM as a de-risking tool in oil and gas exploration (copyright SEG) Jonny Hesthammer and Aristofanis Stefatos, Rocksource ASA, Stein Fanavoll and Jens Danielsen, EMGS ASA
2010 False negatives and positives in the interpretation of EM data (copyright SEG) Stein Fanavoll and Jens Danielsen, EMGS ASA, Jonny Hesthammer and Aris Stefatos, Rocksource ASA
2010 3D CSEM over Frigg – dealing with cultural noise (copyright SEG) Antony Price, Total CSTJF, France, Geir Mikkelsen, Total Norge and Mark Hamilton, EMGS
2010 Full-azimuth, anisotropic 3D EM inversion applied to a low-resistivity pay reservoir with well control (copyright SEG) D. Crider and M. Scherrer, Focus Exloration LLC, T. Pham, Jürgen J. Zach and Michael A. Frenkel, EMGS Americas
2010 Shallow water 3D CSEM: A case study from Malaysia (copyright SEG) Håkon Toralv Pedersen, EMGS, M. Akmal Affendi B. Adnan and Azani B. A. Manaf, Petronas
2010 A practical example why anisotropy matters - A CSEM case study from South East Asia (copyright SEG) S. A. Mohamad, L. Lorenz, L. T. Hoong and T. K. Wei, EMGS, S. K. Chandola, N. Saadah and F. Nazihah, PETRONAS Carigali
2010 Hydrocarbon reservoir thickness resolution in 3D CSEM anisotropic inversion (copyright SEG) Jan Petter Morten, Astrid Kornberg Bjørke and Anh Kiet Nguyen
2010 Controlled source electromagnetic technology and hydrocarbon exploration effiency (Copyright First Break) Stein Fanavoll, EMGS, Jonny Hesthammer, Rocksource, Jens Danielsen, EMGS and Aris Stefatos, Rocksource
2010 High-order finite-difference simulations of marine CSEM surveys using a correspondence principle for wave and diffusion fields Rune Mittet
2010 How seabed logging is reducing risk today and creating opportunities tomorrow David Ridyard
2010 Enhanced subsurface response for marine CSEM surveying Frank A. Maaø, Anh Kiet Nguyen
2010 Geophysical issues and challenges in Malay and adjacent basins from EnP perspective Ghosh et al
2009 Exploration case studies in mature Gulf of Mexico basins using 3D marine CSEM (copyright SEG) Honglin Yuan, Tra Pham, Jürgen J. Zach, Michael A. Frenkel and David Ridyard
2009 Marine CSEM time-lapse repeatability for hydrocarbon field monitoring (copyright SEG) Jürgen J. Zach , Michael A. Frenkel, David Ridyard , J. Hincapie and Benjamin Dubois
2009 Incorporating seismic horizons in inversion of CSEM data (copyright SEG) Kristian Rymann Hansen and Rune Mittet
2009 The role of EM rock physics and seismic data in integrated 3D CSEM data analysis (copyright SEG) I. Brevik, StatoilHydro, Pål T. Gabrielsen, Vestfonna and Jan Petter Morten, EMGS
2009 CSEM data uncertainty analysis for 3D inversion (copyright SEG) Jan Petter Morten, Astrid Kornberg Bjørke and Trude Støren
2009 Enhanced subsurface response for marine CSEM surveying (copyright SEG) Frank A. Maaø and Anh Kiet Nguyen
2009 Importance of Azimuth Data for 3D Inversion of Marine CSEM Scanning Data Jan Petter Morten, Astrid Kornberg Bjørke, Trude Støren, Eivind Coward, Stig Arne Karlsen and Friedrich Roth
2009 A Modeling Study of Low-frequency CSEM in Shallow Water Michael A. Frenkel and Sofia Davydycheva
2009 EM anomaly detection under a high resistive, anisotropic overburden: Inversion study from the Nucula discovery, Barents Sea Anh Kiet Nguyen, Stein Fanavoll, Kristian Rymann Hansen, Jan Petter Morten and Raghava Tharimela
2009 Prospect de-risking using CSEM Joanne Suffert and Volker Ullrich, EMGS, and Marit Tørudbakken Jendal, RWE DEA Norge
2009 3D Inversion-Based Interpretation of Marine CSEM Data Jürgen J. Zach and Michael A. Frenkel
2009 Marine CSEM methods for 3D hydrocarbon field mapping and monitoring Jürgen J. Zach, Michael A. Frenkel, Anne-Marit Østvedt-Ghazi, Patricia de Lugao and David Ridyard
2009 Detecting low-pay reservoirs in salt provinces using 3D inversion of marine CSEM Jürgen J. Zach, Michael A. Frenkel , Anne Marit Østvedt-Ghazi, Arun Kumar and Tra Pham
2009 Salt mapping using 3D-marine CSEM surveys Jürgen J. Zach, Michael A. Frenkel, Anne Marit Østvedt-Ghazi, Stuart Goldstein, Arun Kumar and Tra Pham
2009 Interpreting SBL data in complex resistivity regime; integration of advanced EM- techniques (copyright SEG) Lars Lorenz and Håkon Pedersen, EMGS, Muralikrishna Akella, Anil Tyagi, Pranaya Sangvai and Rabi Bastia, Reliance Industries Ltd
2009 Marine CSEM technology performance in hydrocarbon exploration - limitations or opportunities? Aristofanis Stefatos, Mikhail Boulaenko and Jonny Hesthammer, Rocksource
2009 3-D EM addresses exploration challenges Don Crider and Mike Scherrer, Focus Exploration and David Ridyard and Honglin Yuan, EMGS Americas
2009 Casing effects in the sea-to-borehole electromagnetic method F. N. Kong , F. Roth, P. A. Olsen and S. O. Stalheim
2009 Investigating the exploration potential for 3D CSEM using a calibration survey over the Troll field Pål Gabrielsen, Ivar Brevik, Rune Mittet, Lars O. Løseth
2008 Electromagnetic prospect scanning - seabed logging moves from risk reduction to value creation Bjørn Petter Lindom, Jan Erik Lie and David Ridyard
2008 Seabed logging acquisition as a tool in exploration decision-making (copyright: SEG) J. Mohr, C. Guargena and S. Sorensen, Aker Exploration ASA, Ole Christensen and Bi Trah Lucien Tah, EMGS
2008 Shaping optimal transmitter waveforms for marine CSEM surveys (copyright: SEG) Rune Mittet and Tor Schaug-Pettersen
2008 How EM survey analysis validates current technology, processing and interpretation methodology Ståle Johansen, Kjetil Brauti, Stein Fanavoll, et.al
2008 CMP inversion and post-inversion modelling for marine CSEM data Rune Mittet, Ketil Brauti, Herry Maulana and Tor Atle Wicklund
2008 Normalized amplitude ratios for frequency-domain CSEM in very shallow water Rune Mittet
2008 Planning Time-lapse CSEM-surveys for Joint Seismic-EM Monitoring of Geological Carbon Dioxide Injection T. Norman, NTNU, H. Alnes, StatoilHydro, O. Christensen, J.J. Zach, EMGS, O. Eiken, StatoilHydro and E. Tjåland, NTNU
2008 Integrated EM system boosts the search for hydrocarbons Ken Feather, EMGS
2008 Laws of Attraction Interview with J. Hesthammer, Rocksource, J. Christiansen, TGS-NOPEC, K. Feather, EMGS, A. Overton, OHM, et.al
2008 On the Removal of MT Signals from SBL Data Sebastien de la Kethulle de Ryhove, Frank Maaø
2008 Data Preprocessning and Starting Model Preparation for 3D Inversion of Marine CSEM Surveys Jürgen J. Zach, Friedrich Roth and Honglin Yuan
2008 Gradient Calculation for 3D Inversion of CSEM Data Using a Fast Finite-difference Time-domain Modelling Code Trude Støren, Jurgen J. Zach and Frank A. Maaø
2008 Application of electromagnetic scanning to an Australian frontier basin with complex bathymetry F. Roth, DS Monk, C Twarz, J Ross
2007 Fast finite-difference time-domain modeling for marine-subsurface electromagnetic problems (copyright: SEG) Frank A. Maaø
2007 On the orientation and absolute phase of marine CSEM receivers Rune Mittet, Odd Marius Aakervik, Hans Roger Jensen, Svein Ellingsrud, EMGS and Alexey Stovas, NTNU
2007 CMP inversion of marine CSEM data Rune Mittet, EMGS, H. Maulana, Murphy, Ketil Brauti, and Tor Arne Wicklund, EMGS
2007 Shaping optimal transmitter waveforms for marine CSEM surveys (copyright: SEG) Rune Mittet and Tor Schaug-Pettersen
2007 Azimuth decomposition of seabed logging data Frank A. Maaø, EMGS, S. E. Johnstad, Hydro O&E, Pål T. Gabrielsen and Martin Panzner, EMGS
2007 Effect of receiver density and azimuth data in grid modelling of seabed logging (copyright: SEG) Bjørn Petter Thrane, Edwin Meissner, Martin Panzner and Frank A. Maaø
2007 Inversion of marine CSEM data using up-down wavefield separation and simulated annealing (copyright: SEG) Friedrich Roth and Jürgen J. Zach
2007 Methane hydrates in CSEM surveys - analysis of a recent data example Jürgen J. Zach and Ketil Brauti
2007 Improving seabed logging sensitivity in shallow water through up-down separation Friedrich Roth and Frank A. Maaø
2007 Challenges in Shallow Water CSEM Surveying: A Case History from Southeast Asia (copyright: IPTC) S. K. Chandola, R. Karim, A. Mawarni, R. Ismail, N. Shahud, R. Rahman and P. Bernabe, PETRONAS Carigali and Ketil Brauti, EMGS
2007 Changing the exploration rule book with EMGS
2007 The rapid adoption of Seabed Logging Interview with Ken Feather, EMGS
2007 Seabed surveyors break new ground Andrew McBarnet, Asian Oil & Gas
2007 The Luva Gas Field: Detailed Analyses Reveal Subtle Anomaly Halfdan Carstens, GEO ExPro
2007 Seabed Logging – A Proven Tool for Offshore Exploration and Development David Ridyard, EMGS
2007 Deep electromagnetic imaging Ken Feather, EMGS
2006 High-resistivity anomalies at Modgunn arch in the Norwegian Sea Anwar Bhuiyan, NTNU, Tor Atle Wicklund and Ståle Johansen, EMGS
2006 Decomposition of electromagnetic fields into upgoing and downgoing components Lasse Amundsen, Statoil, Lars Løseth, NTNU, Rune Mittet and Svein Ellingsrud, EMGS and Bjørn Ursin, NTNU
2006 Scanning moves seabed logging from risk reduction to opportunity creation David Ridyard, Tor Atle Wicklund and Bjørn Petter Lindhom
2006 Low-frequency electromagnetic fields in applied geophysics: waves or diffusion? Lars O. Løseth, Hans M. Pedersen and Bjørn Ursin, NTNU, Lasse Amundsen, Statoil Research Center and Svein Ellingsrud, EMGS


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