Reinaldo J Michelena is reservoir characterization and geophysical advisor. He has a Ph.D. in geophysics from Stanford University and a B.S. in physics from Universidad Simón Bolívar (Venezuela). He has over 35 years of experience in research, development, and application of seismic methods to help reservoir delineation and characterization, from prototyping, programming and testing of algorithms to integrated interpretation of field data results. He worked 18 years for PDVSA-Intevep, the research and technical services affiliate of PDVSA. His last position in PDVSA in 2003 was Manager of Reservoir Delineation and Characterization. Between 2003 and 2017 he was Director of Geophysical Technologies at iReservoir, where worked in a variety of problems and geological settings where seismic data analysis results are used to constrain geological and flow simulation models, in conventional, unconventional, and naturally fractured reservoirs. He has introduced the seismic component in numerous fracture characterization projects around the world by using conventional and multicomponent data. In 2017, he continued his collaboration with iReservoir as Geophysical Advisor and started SeisPetro Geosoftware and SeisPetro Geoconsulting to continue the application and development of advanced seismic, petrophysics, and geological modeling techniques to help in the solution of complex reservoir problems. He has collaborated with the Society of Exploration Geophysicists in a variety of roles that include Associate Editor of the journal Geophysics, Chairman of the Board of The Leading Edge, and Chairman of the SEG Translations Committee.

Chris Zahm is a Research Geologist at the Bureau of Economic Geology at the University of Texas at Austin. He received his Ph.D. in 2002 from the Colorado School of Mines as a structural geologist and has M.Sc. degree from the University of Texas at Austin in Hydrogeology and B.S. in Geology from the University of Wisconsin-Madison. With more than 25 years of experience working fractured reservoir systems in both industry and academia, Chris has focused on characterizing and modeling natural fracture systems in subsurface reservoirs from around the world including onshore US, Norwegian North Sea, Indonesia, offshore Brazil, Bolivia, and the Middle East. Chris is a principal researcher within the Reservoir Characterization Research Group (RCRL), which is an industrial associates' program at the University of Texas at Austin Bureau of Economic Geology.

James Gilman provides reservoir engineering and flow simulation consultation with more than 40 years of experience. He is also part-time advisor to a consulting company (iReservoir) and a simulation software company (Stone Ridge Technology). His expertise includes specialization in the area of application and development of numerical simulators for fluid flow in petroleum reservoirs. He has been involved in development of 3-phase simulators for naturally fractured reservoirs. He is actively involved consultation in the areas of reservoir engineering, reservoir simulation, naturally fractured reservoirs, and unconventional reservoirs. He has extensive training experience in these areas through Marathon, iReservoir and Nautilus. He previously was Manager of Reservoir and Well Performance, a multidisciplinary organization at Marathon Oil Company’s Technology Center. The organization provided 3-D geologic modeling, laboratory special core analysis, reservoir simulation, training and general reservoir engineering services. Jim has authored or co-authored over 50 articles primarily dealing with naturally fractured reservoirs, horizontal wells and unconventional reservoirs. He co-authored the book “Reservoir Simulation: History Matching and Forecasting” (SPE, 2013). He was a member of the SPE Editorial Review Committee from 1987-2000 and served as an Executive Editor for SPE Reservoir Evaluation and Engineering. He served as Chairman of the Twelfth SPE Symposium on Reservoir Simulation (1993) and on the program committees for the 1991 and 1997 symposiums. He has served as Chairman of the following committees: Symbols (1996), Monograph (2004), NFR Forum (2006), Books (2010-2012,2017-18). Jim is a registered PE in Colorado, and a member of SPE. He currently offers training in reservoir simulation through Nautilus, iReservoir, Society of Exploration Geophysicists and the Petroleum Technology Transfer Council.  Jim holds a MS degree in Chemical and Petroleum Refining from Colorado School of Mines and a BS degree in Chemical Engineering from Montana State University-Bozeman.