D1 Oil And Gas Field

Summary Information

  • Operator: ONGC
  • Country: India
  • Location: 200 km West of Mumbai
  • Production start:
  • Partners:
  • Type: Oil
  • Estimated Reserves: IOIP is expected to be in excess of One Billon Barrels
  • Production Volume:


  • D1, primarily an oil producing field, is situated about 200 km West of Mumbai city in Deep Continental Shelf at a water depth of 85m – 90m.
  • The Field comprises of 4 blocks namely D1-4, D1-12, D1-14 and D1-2/5
  • The field has been developed in phases
  • The field utilises the Armada D1 FPSO
    • The FPSO has 50,000 barrels processing capacity, 580,000 barrels storage capacity, and equipped with an internal turret designed for monsoon conditions prevalent at the field


  • Keppel: FPSO conversion
  • Dyna-Mac: fabrication of topside modules
  • SDE, Malaysia: Jacket, Deck, Topside
  • ABB: Electrical Systems
  • FoundOcean: Grouting for B, C & D platforms
  • Kavin Engineering: Fine Filters Package & Bid Engineering


  • 1976 - The first well in D1-4 block was drilled
  • 2011 - Bumi Armada Signs 7 Year FPSO Contract
  • 2012 - New discoveries boost reserves to One Billon Barrels



  1. FoundOcean Subsea References
  2. Jotun Platform References
  3. Kavin Engineering Oil And Gas Processing References
  4. Bumi Armada Signs 7 Year FPSO Contract With ONGC
  5. ONGC strikes third largest reservoir in Western Offshore

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