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Spread Mooring System

 

Spread moored systems are mooring systems that allow tankers to moor at a fixed location at a fixed heading and allows tankers to (off)load their products. The main difference between this system and buoy moorings, turret moorings and tower moorings, is that the mooring and product transfer functions of the Spread Moored system are not integrated. They are completely separated

Conventional Buoy Mooring (CBM) or Multiple Buoy Mooring (MBM) for temporary mooring

This mooring system utilises a minimum of three buoys. The tanker moored to such a system is restricted from weathervaning. A Conventional Buoy Mooring (CBM), also called a Multi Buoy Mooring (MBM), is in fact, a spread moored system.  It is generally used in areas where the environmental conditions are moderate and the frequency of offloading operations is limited, or for projects where smaller tankers are received.

Since this system does not allow the tanker to weathervane, it can cause severe operational limitations. It typically consists of the following main components:

  • Multiple mooring buoys
  • Anchor arrangement
  • PLEM with submersible hose string

 

 

 

Conventional Buoy Mooring

Arrangement (CBM) for temporary

mooring of tankers

Mooring (CBM) system

Conventional Buoy