Jean-Yves Chatellier is currently with Nexen Energy in Calgary, Canada. Previously he worked as a Senior Geoscientist with Talisman Energy and around the world for Elf Aquitaine, Petroconsultants and Shell International before accepting a job as Senior Reservoir and Structural Geology Research Advisor for Intevep, the research laboratory of PDVSA. His first years in Calgary were dedicated to evaluating new play concepts for Tecto Sedi Integrated Inc. His principal expertise is in data analysis and multidisciplinary integration in tectonically complex areas using tools from geochemistry, geology, geophysics and engineering. He received his BSc in geology from Lille University, a DEA and a PhD in tectonics from Paris VI University. While serving in the French Army he received an MSc in sedimentology from the University of Calgary. He later obtained an MBA from Henley Management College.