President

John T. Han, P.E., President, Collarini Associates (CAS) International, LLC has over 30 years of successful petroleum engineering and management experience.  John earned his B.S. in Petroleum Engineering from Texas A&M University in 1975.  He is trained and practiced in oil and gas reservoir engineering; drilling and production engineering; economic analysis in both deterministic and probabilistic methods; acquisition and divestiture evaluation and contract negotiation. John's international experience includes reservoir and production engineering in China, Indonesia, Australia, Yemen, UK N. Sea, Venezuela, Brazil and Mexico.  His U.S. experience includes Gulf of Mexico offshore, Permian and Anadarko basin.  John has a patent pending in "Quantitative Real Option Intelligent Completion Valuation System and Method"; as well as co-author of several SPE technical papers.  He is a member of Society of Petroleum Engineers (SPE) and a Licensed Professional Engineer of Texas.