This expanded publication remains the comprehensive first reader of the oilwell drilling industry. Features enhanced content and a new engineering perspective written by petroleum industry expert Dr. Paul M. Bommer, Senior Lecturer of the Petroleum Engineering at The University of Texas at Austin. Contains over 220 vibrant photos and illustrations supporting descriptions of drilling processes both on land and offshore, from exploration to well completion. Includes a glossary of drilling terms. Published in cooperation with the International Association of Drilling Contractors (IADC). Also includes 20" x 24" full color Rotary Rig and Its Components Poster. PETEX 2008, 264 pp.