Our OSI (On-Stream Inspection) Study service provides a structured framework for inspecting and monitoring mechanical equipment while the plant remains in operation, without the need for shutdown or process interruption. The study is designed to maintain asset integrity, manage corrosion and degradation risks, and support safe continued operation where shutdown-based inspections are impractical or economically restrictive. It covers critical static mechanical equipment such as pressure vessels, piping systems, heat exchangers, storage tanks, and associated components.

The study evaluates equipment criticality, applicable damage mechanisms, operating conditions, historical inspection data, and process constraints to determine the suitability of on-stream inspection techniques. Appropriate inspection and monitoring methods such as ultrasonic thickness monitoring, corrosion probes and other non-intrusive techniques are selected and justified. Limitations, uncertainties, and required safeguards are clearly defined to ensure inspection reliability and compliance with applicable codes and standards.

The outcome of the OSI Study is a technically justified and execution-ready inspection strategy that supports integrity management between turnarounds and planned shutdowns. clients benefit from improved visibility of degradation trends, optimised inspection intervals, early detection of integrity threats, and reduced reliance on frequent shutdowns ultimately enhancing safety, availability, and lifecycle cost management.