Purvin & Gertz is an international energy consulting firm providing services to the crude oil, petroleum refining, natural gas, LPG, NGL and power generation industries For refinery and certain petrochemical process units, Purvin & Gertz has developed and maintains a replacement cost estimating model to estimate replacement costs for individual process units and process complexes Our consultants are highly educated seasoned industry professionals averaging over 20 years of individual experience in the technical, operational and commercial areas of the industries they serve We are confident that our energy experts can customize a workshop, training program or seminar to fit your company's specific needs