Our Consultants
Our consultants are our strength. They are highly qualified geostatisticians familiarized to your business and help you to gain time and efficiency whatever your issue level is.
Our consultants have a great experience in geostatistics applied to different fields and are fully committed to supporting your company. They regularly contribute to international industry and academic conferences and journals and have been responsible for implementation of many significant technical advances over the past 20 years.
French team
 | Dr Jacques DERAISME, Scientific Adviser - Principal Consultant
List of publications Jacques co-founded Geovariances and and has almost 40 years experience in mining geostatistics. He is presently Scientific Adviser & Principal Consultant. After graduating as a Mining Engineer (Ecole des Mines de Nancy, 1969) he worked from 1972 to 1986 at the Centre de Géostatistique de l’Ecole des Mines de Paris where PhD research focused on stochastic and mining simulations. Jacques has conducted numerous geostatistical studies world-wide and has extensive experience in technical management and targeted geostatistics training for Oil & gas or Mining industries. Jacques provides technical input to develop systems and processes for incorporating geostatistics into resource modelling procedures and processes and provides specialist QA/QC expertise. |
 | Olivier BERTOLI – Consulting and Training Manager – Mining Sector
List of publications Olivier’s high-level training in applied mathematics, mining engineering and geostatistics from the Paris School of Mines is broadened by 17 years practical experience as a professional geostatistician. These include five years as technical director of Tenzing Pty Ltd. Olivier who specialises in staff training in the form of hands-on co-piloting sessions, has specific expertise in advanced geostatistical modelling including non-linear methods, conditional simulations, multivariate analysis and non-stationary modelling. Olivier also has extensive experience in the application of geostatistical techniques to coal resource modelling, gained through project work for Anglo Coal, BMA, BHP Billiton, Rio Tinto and Xstrata Coal since 2003. |
 | Dr Nicolas JEANNEE, Consulting & Training Manager - Petroleum & Environmental Sector
List of publications Nicolas has 12 years experience in quantitative data analysis and geostatistical modeling. His expertise is focused on uncertainty assessment for both Oil & Gas applications (depth conversion, property modeling and volumetric determination) and Environmental issues (air, water and soil pollution). He has published in various journals and presented talks in numerous conferences. He taught more than 60 courses dedicated to (geo)statistics, mainly for industry and research organizations. Nicolas holds a Master Degree in Applied Mathematics & Statistics from the University of Namur, Belgium and a Special Degree in Hydrogeology from the UPMC in Paris. He received his Ph.D. in geostatistics from Paris School of Mines in 2001. |
 | Frédéric RAMBERT, Technical Support Manager, Consultant
Frédéric is a geologist engineer who has been working in the field of geostatistics for more than 20 years. He graduated from the Ecole Nationale Supérieure de Géologie de Nancy - France in 1984 in the Geophysics section, and then worked more than two years in the Centre de Géostatistique de l’Ecole des Mines de Paris where he also obtained a degree in Geostatistics. He worked one year in a consulting company in Sydney, applying geostatistics in the Australian Mining industry, before joining Geovariances in 1988. Frédéric has been involved in software development, customer training and software support, as well as software sale. He also worked on several projects for Oceanography and Oil & Gas companies, and is currently Manager of the support activities at Geovariances. |
 | Lucia ROBLES-STEFONI, Consultant, Mining
List of publications Lucia is a mining engineer from the University of Chile, with a master of mining engineering from McGill University (Canada). Whilst being active as a young mining professional since 2006 Lucia has been involved in several applied research projects including one on the critical analysis of multiple-points statistics methods applied to the simulation of Diamond Pipe geometries carried out in 2009. Lucia has a strong background in geostatistics, ore reserve evaluation, risk analysis and mine planning. She acquired work experience in Canada and important mining operations in Peru and Chile. She is fluent in English, Spanish and French. Beside her strong knowledge of Isatis, she has a working knowledge of mining software (Geomodel, Miner, GEMCOM, GEMS, Datamine and Whittle). |
 | Christophe BESSIN, Consultant, Mining
Christophe is a geologist engineer with a master in Raw Material Management from the Ecole Nationale Supérieure de Géologie de Nancy. He joined Geovariances in 2012. He learned the use of Isatis in Kazakhstan while working on the estimation of a polymetallic deposit. Christophe contributes to Mining consulting projects and trainings. |
 | Matthieu BOURGES, Consultant, Oil & Gas
List of publications Matthieu is a geologist engineer graduated from the Ecole Nationale Supérieure de Géologie de Nancy - France where he get specialized in Hydrodynamics and Reservoir Engineering (sedimentology, hydrodynamics, geotechnics). He joined Geovariances in 2007. Matthieu is mainly involved in Oil & Gas consulting projects and trainings. He also contributes to the Isatis Technical Support and documentation. |
 | Hélène BINET, Consultant, Oil & Gas
Since joining Geovariances early 2013, Hélène is mainly involved in Oil & Gas consulting and training activities. Hélène has 6 years of experience in geostatistical consulting, mainly applied to geophysics, in particular seismic data QC & filtering, time to depth conversion and related topics. She is graduated from University Paris 6, France with a master in Geosciences and a speciality in geophysics. |
 | Renaud MEUNIER, Consultant, Oil & Gas
Renaud has more than 10 years experience in the Oil & Gas industry. _ After graduating from the University Paris 6, France with a master in Geosciences, Renaud spent 10 years in the UK where he was involved in various consulting works in Reservoir Modelling, Reservoir Characterisation, Volumetric and Seismic Inversion. Renaud also implemented a pre and post-stack Stochastic Inversion engine (Earthworks ESI™ and MPSI™). Since joining Geovariances early 2013, Renaud is mainly involved in Oil & Gas consulting and training activities. _ Renaud has a working knowledge of others Oil & Gas software (Petrel, HR Strata, OpendTect, GeoFrame, Flogrid…). |
 | Julien ATTIOGBE, Consultant, Software Developer
List of publications Julien is a software engineer who has been working for the French Atomic Energy Commission CEA since 2004, to develop software solutions dedicated to soil radiological characterization (Kartotrak). At CEA, he worked in partnership with Geovariances on geostatistical aspects and was involved in many radiological studies. He joined Geovariances in January 2009. Julien contributes both to consulting projects and software development. |
 | Emilie AUBONNET, Consultant, Site Characterization
List of publications Emilie is an engineer in site characterization who has been working for the French Atomic Energy Commission CEA since 2008. She worked in partnership with Geovariances on geostatistical aspects and was involved in many radiological studies. She joined Geovariances in October 2010. She mainly contributes to different radiological evaluation projects for French and international sites. |
 | Dr Yvon DESNOYERS, Consultant, Environmental
List of publications Yvon joined Geovariances in 2008 as a member of the consulting and training team. In 2010, he obtained his PhD dedicated to the geostatistical characterization of radiological contamination in nuclear facilities in partnership with the French Atomic Energy Commission, CEA. Yvon is mainly involved in nuclear consulting projects, trainings and working groups on radiological characterization and sampling optimization. |
 | Claire FAUCHEUX, Consultant, Environmental
List of publications Claire joined Geovariances in 2010. Graduated from the École Nationale Supérieure d’Agronomie de Rennes – France with a diploma of agronomic engineering and a speciality in applied statistics, she spent two years and a half within the Geostatistical team of Mines ParisTech as a research assistant. At Geovariances, Claire is mainly involved in Environmental consulting projects and trainings and also takes part in the Isatis technical support and documentation. |
 | Ophélie LEMARCHAND, Consultant, Environmental
List of publications Ophélie joined Geovariances in 2007 after graduating from university with a master in mathematical engineering and a speciality in statistics. She spent 8 months in a French association for Air Quality Monitoring where she worked on ozone pollution automatic mapping. Ophélie is mainly involved in environmental consulting projects and trainings. She also takes part in the Isatis Technical Support and documentation. |
 | Laurent WAGNER, Consultant, Software Product Engineer
Laurent is a geologist engineer graduated from the Ecole Nationale Supérieure de Géologie de Nancy - France where he get specialized in geomodelling and software development. In 2009 he joined Geovariances to get involved in the development of Isatis: users’ requests, software specifications and quality tests. He is also in charge of the documentation and contributes to consulting projects, trainings and Isatis technical support. |
Australian team
 | Clare MAWDESLEY, Principal Consultant, Resource Evaluation
Clare has 18 years mining experience in mining geology, planning and geotechnical engineering roles. She has specific expertise in geotechnical and geological characterisation, numerical modelling, and medium to long-term mine design and scheduling. Clare has a B.Eng. (Hons) in Geological Engineering from RMIT University and a PhD from the University of Queensland. Her PhD work involved the application of a statistical approach to evaluate and improve existing empirical design methods for predicting instability and caving. She is a member of the AusIMM and AIG. |
 | David BARRY, Mathematical Analyst
David joined the team in February 2009 as a specialist Mathematical Analyst. David obtained a BSc with Honours at the University of Queensland, achieving First Class Honours and being awarded a University Medal. On completion of this degree he undertook a Master of Philosophy degree in Physics. |
 | Jacques ESPITALIER, Consultant, Resource Evaluation
Jacques joined the team in October 2011 as Resource Evaluation Consultant. Jacques is a geologist engineer with a master of geosciences specialized in mineral and energetic resources engineering from "Ecole Nationale Superieure de Géologie de Nancy" (France). Jacques acquired work experience in France within Total as junior geologist for 6 months and then within Seisquare for 2 years as geostatistics consultant. Before joining Geovariances, he also worked within Hydrosciences Montpellier for 6 months. Besides his good knowledge of Isatis, he has solid grounding simultaneously in geology, geophysics and geomodeling software packages. |
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