Topsides
Topsides are the surface modules of an offshore facility (platform or FPSO) above the splash zone — including process equipment, utilities, accommodation, and helideck — inspected per API 510/570/653 with the additional challenges of offshore logistics and marine environment.
Definition
Topsides inspection covers pressure vessels, piping, heat exchangers, storage tanks, structural steel, and fire & safety systems. Topsides life-extension assessments combine FFS and RBI to defer expensive shutdowns.
Related terms
- FPSO (Floating Production, Storage and Offloading) — An FPSO is a ship-shaped floating offshore facility that receives produced hydrocarbons from subsea wells, separates and treats them, stores the oil in its hull, and offloads to shuttle tankers — inspected to a combination of marine-class (DNV, ABS), API, and
- Jacket — A jacket is the steel tubular space-frame substructure of a fixed offshore platform, founded on piles and supporting the topsides above the waterline, inspected for fatigue cracking at nodes, marine growth, and CP performance.
- Riser — A riser is the pipe segment that conveys produced hydrocarbons from the seabed to a surface facility (platform or FPSO), subject to dynamic loading, corrosion, and fatigue, inspected by ROV-deployed UT, ACFM, and visual methods.
- API 510 Pressure Vessel Inspection Code — API 510 is the inspection, repair, alteration, and rerating code for in-service pressure vessels in refineries and chemical plants, requiring periodic external and internal inspection by certified API 510 inspectors.
- API 570 Piping Inspection Code — API 570 is the inspection, repair, alteration, and rerating code for in-service piping systems in refineries and chemical plants, defining inspection intervals based on piping class and corrosion rate, and requiring API 570 inspector certification.
More asset-type terms
Pressure Vessel · Storage Tank · Heat Exchanger · Fired Heater · Pipeline · Wellhead · Christmas Tree · Blow-Out Preventer · Valve · Flange
Where this comes up in practice
Terms like this one appear in three places that matter commercially: the written practice that governs how your personnel are qualified, the procedures and technique sheets that define how an examination is actually performed, and the evidence an auditor or client asks for when they want to know why an inspection was accepted. Getting the terminology right is the easy part; being able to produce the qualification record, the calibration traceability and the procedure revision that applied on the day of the inspection is the part that decides audits.
Atlantis NDT provides NDT training and certification against ASNT SNT-TC-1A and ISO 9712, ASNT Level III consulting for written practices and procedure approval, inspection management software that holds qualification, calibration and procedure-revision evidence in recoverable form, and an asset integrity platform that binds inspection results to the asset they describe. Browse the full NDT glossary or ask a Level III directly.