Introduction

Mooring Materials Application Program Links

 

   Taut leg

 

 

Synthetic mooring lines have been used to position FPSOs since 1999. The Petrobras FPSO-2 in the Campos Basin was the first to utilize this new technology. The choice of using synthetic mooring lines was made because of area constraints.

 

Steel chain and wire have high density’s which means that inevitably a catenary forms. With drag anchor lines and a catenary form the horizontal offset from platform to anchor is 3 times larger than the water depth.

 

With a polyester mooring line and a suction anchor which can handle uplift angels to 45o the mooring area is much smaller. This was vital in the Campos Basin as subsea constructions limited the mooring footprint of the FPSO.

 

With the intent to take fields into production which are ever further in deeper waters, the use of synthetic mooring lines will become more widely used.

 

 

   Inert Catenary

 

  Examples

   Drilling rig

 

   FPSO

 

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