Strategic maintenance optimization in aging gas turbine fleets: A Saudi Aramco case study

6/30/2026

M. S. ALAHMADI and O. Y. ZIDAN,Saudi Aramco,Dhahran, Saudi Arabia An often-overlooked aspect of the authors’ company’s operations is its extensive and diverse fleet of > 200 gas turbines with various capacities reaching up to 200 megawatts (MW). These units support a wide range of applications, including power generation, water injection, oil transfer and natural gas liquids (NGL) compression. Approximately 30% of the company’s turbine fleet is > 40 yrs old: the majority of the aged fleet is deployed in mechanical drive applications, while a handful of units are utilized for offshore power generation. Geographically, the units are distributed across Saudi Arabia with larger power ge