Minimum-Cost Well Drilling Strategy Using Dynamic Programming

[+] Author and Article Information
A. K. Wojtanowicz

Department of Petroleum Engineering, Louisiana State University, Baton Rouge, LA 70803

E. Kuru

Department of Petroleum Engineering, Middle East Technical University, Ankara, Turkey

J. Energy Resour. Technol 115(4), 239-246 (Dec 01, 1993) (8 pages) doi:10.1115/1.2906428 History: Received February 11, 1990; Revised June 14, 1993; Online April 16, 2008


This paper presents an advanced concept in drilling optimization—the dynamic drilling strategy. The dynamic drilling strategy is a new methodology of drilling process planning and control; it combines theory of single-bit control with an optimal multi-bit drilling program for a well. In the simulation study, the dynamic drilling strategy was compared to conventional drilling optimization and typical field practices; the considerable cost-saving potential of 25 and 60 percent, respectively, was estimated. The method also appeared to be the most cost-effective for expensive and long-lasting PDC bits through better utilization of their performance and reduction in the number of bits needed for the hole.

Copyright © 1993 by The American Society of Mechanical Engineers
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