ETLP Advisory Board

Chairman: Colin MacBeth

Gustavo Corte is a senior 4D geophysicist. He holds a PhD in ETLP, with research focused on pressure and saturation quantification from 4D seismic data, involving machine learning and Bayesian inversion techniques. He has been involved in 3D and 4D seismic inversion projects for a variety of fields offshore of Brazil and the North Sea. His research work has been focused on Sim2Seis, 4D AVO, pressure and saturation quantification, the calibration of pressure sensitivity, R-factor and petro-elastic models as well as the more recent Sim2Seis application for CO2 injection.

David Johnston earned a BSC in Earth Sciences from the Massachusetts Institute of Technology in 1973 and a Ph.D. in Geophysics in 1978, also from MIT. He joined Exxon Production Research Co. (later ExxonMobil Upstream Research) and held assignments in rock physics research, velocity analysis and interpretation, and seismic reservoir characterization and monitoring. He moved to ExxonMobil Exploration Co. in 2002 where he was responsible for the worldwide application of time-lapse seismic technology. Starting in 2008 Johnston provided technical and business stewardship of ExxonMobil’s global production geophysics activity, including 4D seismic. He retired from ExxonMobil in 2017 and formed Differential Seismic, LLC, a geophysics consultancy. David is an Honorary Professor at Heriot-Watt University.

John Wild is a former Production Geophysicist with a near three-decade career in field development, life extension and evaluation of secondary reservoirs with Britoil, Mobil and Exxon-Mobil, that strayed significantly into geomodelling and reservoir engineering. Through involvement in all stages including validation through drilling of several large Canadian, UKCS and Norwegian time-lapse surveys and involvement in a large portfolio of UKCS fields he came to appreciate how much reservoir information remains to be unlocked from these unique glimpses into how reservoirs respond to production.

Jorg Herwanger is a global technical authority on integration of geomechanics and time-lapse seismic data. By collaboration with the Edinburgh Time-Lapse Project he helps to shape the next generation of “Seismic Geomechanics” experts, and creates new insights into monitoring of geomechanical processes in the energy industry. He is the founder and Principal Geoscientist at MP-Geomechanics and a Visiting Professor at Heriot Watt University. For various aspects of his Seismic Geomechanics work, he was invited twice as a Distinguished Lecturer by EAGE and as the 5th EAGE Education Tour (EET) Lecturer. For the EET lecture tour he wrote the eponymous book on “Seismic Geomechanics”.

Romain Chassagne has a background in applied mathematics and earned his PhD in computational geosciences. He spent his first part of his career in modelling multiphase flow in porous media at different scale (reservoir, around well, core) in different institutions, Schlumberger Cambridge Research, IFPEN. During these years his domain of application was Oil and Gas and CO2 storage. The second part of his career was with ETLP working on methods to assimilate 4D seismic and well data all together to obtain a robust and reliable model update. Since 2022 at BRGM, (French Geological Survey) Romain is developing data assimilation AI-aided methodologies for geothermal exploration and exploitation, CO2 storage monitoring, hydrogen and hydrogeology and co-production (e.g., lithium, minerals) related projects to support operational decision-making. Leading and/or involved in national and European research consortium projects for the subsurface.

Jorge Landa has technical interests that include research and technical services in the areas of reservoir engineering aspects of 4D seismic, reservoir flow simulation, probabilistic history matching and forecasting, 4D seismic history matching, 4D seismic inversion, reservoir surveillance, well testing, optimization, geostatistics, geomechanics, and inverse problem theory. He has more than 40 years of experience in the oil industry. He worked for Chevron USA and Halliburton Company. He holds a US patent, was an SPE Distinguished Lecturer, has authored SPE and SEG technical papers, co-authored in an SPE Monograph, participated in the organization of SPE conferences and workshops, and joint research projects with academia and a USA National Laboratory. Jorge holds Ph.D. and M.S. degrees in Petroleum Engineering from Stanford University, USA, and an Electro-Mechanical Engineering degree from Universidad de Buenos Aires, Argentina.