South West Ampa Gas Field

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Brunei Oil & Gas Fields

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Summary Information

  • Operator: Shell
  • Country: Brunei
  • Location:
  • Production start:
  • Partners:
  • Type: Gas
  • Estimated Reserves:
  • Production Volume:


  • The AMDP-09 platform complex is the biggest complex in South West Ampa Field
  • The field supplies gas to the Brunei LNG Terminal


  • Hyundai Heavy Industries: Amdp-30 - Platform & Pile, Conductor Pipeline : 3 Km, Power Cable : 3 Km
  • MMCOG: Detailed Design for Ampa-9 HP Compressor Module


  • 1963 - South West Ampa Field discovered
  • 1965 - Production started


  • The reservoirs are heterogeneous, stratified, fine to very fine grained deltaic sands with varying clay content, separated vertically by shales of great lateral extent. All sands silt-out northeastwards across the field. Typical permeabilities are 100-300 mDarcy (0.1-0.3 m2) at 25% porosity.
  • There are some 625 reservoir units with STOIIP's ranging from 0.002 to 26.7 million m3, between 1,000 and 3,500 metres subsea.
  • The Southwest Ampa oil is light (40° API, 825 kg/m3) with an initial low viscosity (0.35 cp), hence the mobility ratio is favourable. Initial solution gas/oil ratio (GOR) ranges from 70-2,300 m3/m3.
  • In the deeper accumulations, most oil reservoirs have extensive gas caps with initially about one-half the hydrocarbon pore volume being gas filled.


  1. Southwest Ampa
  2. MMCOG Platform References
  3. Hyundai Heavy Industries Platform References
  4. FoundOcean Asia Subsea References

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