Hans Axel Kemna (a.k.a. ‘Hansa’) acquired a Ph.D in geosciences in 2006. Since 2008 he has been working as a freelance consultant performing Petroleum Systems Analysis projects for a wide variety of clients worldwide. His expertise on petroleum systems in Brazil is well-known throughout the industry. In fact, a large portion of the studies in the BPS portfolio were completed by him. Hansa is also responsible for technical and sales support in the European market.