A Catenary Anchor Leg Mooring (CALM), also known as Single Buoy Mooring (SBM) or Single Point Mooring (SPM), is a dynamic loading and offloading buoy, that serves as a mooring point for tankers and as link between the Pipe Line End Manifold (PLEM) and shuttle tankers. They’re typically used both in shallow and in deep waters for import and / or export of crude oil and oil byproducts from / to oilfields or refineries. For what it concerns the hoses strings, they’re made by two main systems, floating and submarine. Submarine string(s) can have 3 different configuration: Lazy S, Step S and Chinese Lantern, which are typically equipped with floats to have the correct buoyancy pattern.

The configuration hereunder indicated is the most common hose string configuration. Bassi Offshore however, depending on each specific case, is able to propose a tailor made solutions to fit every customer need.