This report is submitted to summarize TUDRP's research activities since our last meeting in November, 2004. This book contains: ?? an agenda; ?? a list of our member companies; ?? a list of TUDRP’s personnel; ?? a list of our current graduate students, their reports and/or proposals. All reports will be fully presented and discussed at the meeting on May 23rd and 24th, 2005. The active technical and financial support provided by each of you has been the key to our success. With your support and dedication, TUDRP will always strive for academic excellence, high quality research, and will maintain its commitment of providing short and long term drilling technology needs to the oil and gas industry. On behalf of The University of Tulsa, I would like to extend my genuine appreciation for your continued interest in and support of TUDRP.