Leonard KalfayanLeonard J. Kalfayan is a Global Advisor with Hess Corp. based in Houston. His background is in oil, gas, and geothermal production enhancement; new technology development and implementation; and business development. He was a 2005 SPE Distinguished Lcturer and has served on numerous SPE program and technical committees. He is author of more than 30 SPE and other journal publications and serves as a technical reviewer for SPE Production & Operations. He is also author of the book Production Enhancement With Acid Stimulation and co-author of the book The Energy Imperative. Read More Read Less