Topsides in oil and gas construction refer to the above-ground or above-water facilities installed on a platform, structure, or foundation, both offshore and onshore.
They accommodate critical operational systems such as process equipment, power generation, control rooms, utilities, safety systems, and accommodation, enabling safe and efficient production and processing activities.
Total Manufactured Topside From 2003
Oil or Gas Production Platform / Wellhead Tower
2000 MT
(metric tons)
Water Injection Platform
1000 MT
(metric tons)
Power Distribution Platform
3500 MT
(metric tons)
Gas Treatment Platform
2500 MT
(metric tons)
Riser Platform / Tie-In Platform
3500 MT
(metric tons)
Accommodation Platform
32000 MT
(metric tons)
Pre-assembled Module (Substations/ Process Modules)
500 MT
per each module (metric tons)
Approximate Topside Weight
Vary from 300 MT up to 32,000 MT
Approximate Topside size
Up to 68 m x 75 m
Fabrication Duration
1 year to 5 Years