The main Oil and Gas Regions of the World are the following:

North Sea

  • Water depth: 50-150 m
  • Oil Reserves:
  • Gas Reserves: 

Regions of deepwater activities are West of Shetlands with water depths in the range of 500-1000 m and sever weather conditions. FPSOs with turret mooring systems are used to allow weathervaning.

Gulf of Mexico

  • Water depths: upto 2500 m
  • Oil Reserves: 25 billion Barrels 
  • Gas Reserves: 

All kinds of production hosts are used: TLPs, Spars, Semi-Submersibles, tie-basks to fixed platforms. FPSOs are hardly use because: 1)export infrastructure is available so no storage is needed 2) hard regulatory requirements for FPSOs and shuttle tankers  

Offshore Brasil

  • Water depths: upto 2500 m
  • Estimated Oil Reserves: 9 billion Barrels 
  • Gas Reserves: 

The major area is Campos basin. Most of the fields are developed by Petrobras. Water depths are upto 2500m and Petrobras uses mainly FPSOs and semi-submersibles for the production facilities. Subsea wells are connected directly by individual flowlines and risers to the production facilities without any manifolding of the flow. 

West Africa

  • Water depths: upto 2000 m
  • Oil Reserves: 20 Billion Barrels
  • Gas Reserves: 

Deepwater West Africa is developing very fast due to the huge discovery of huge reserves. The benign weather conditions allow for spread mooring of FPSOs which are necessary since the export infrastructure is underdeveloped

Mediterranean Sea

  • Water depth: 50-150 m
  • Oil Reserves:
  • Gas Reserves: 

Regions of deepwater activities are West of Shetlands with water depths in the range of 500-1000 m and sever weather conditions. FPSOs with turret mooring systems are used to allow weathervaning.