Iran’s NISOC Implementing Overhaul Operation in over 100 Processing Units
Comprehensive maintenance, known in the industry as overhauling, is considered a cornerstone of production stability in Iran’s oil sector — particularly at NISOC, which produces more than 85% of the country’s crude. With aging infrastructure, sanctions-related supply constraints, and the need to preserve output capacity, the company has intensified preventive and scheduled maintenance programs in recent years, the oil ministry’s news website reported.
“The slightest production drop — even for a moment — can have far-reaching consequences for the nation’s energy supply, economy, and exports,” said Omid Kiani, the company’s maintenance chief.
From a total of about 300 process units slated for overhaul in the current Iranian year, work has started on more than 100, including preheaters, electrostatic desalters, hydrogen sulfide removal towers, and coalescer tanks. Summer is considered the optimal season for overhauls in the south, where hot weather spans about seven months a year, allowing 60% to 70% of annual work to be concentrated in that period.
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