Songo Songo Gas Field

Summary Information

  • Operator: Orca Exploration Group
  • Country: Tanzania
  • Location: 15 kilometres off the coast and 200 kilometres south of Dar es Salaam
  • Production start: Gas production commenced in June 2004
  • Partners:
  • Type: Gas
  • Estimated Reserves: As at December 31 2009 the audited Songo Songo Proved and Probable (2P) Gas Initially in Place (GIIP) is 1,433 Bcf, while the remaining recoverable 2P reserves are 879 Bcf
  • Production Volume:


  • Songo Songo was Tanzania's first natural gas development
  • The project comprises 3 shallow-water wellhead platforms, 12”x25 km subsea pipeline, 2x35 MMSCFD gas-processing plant and 16”x 225 km cross-country pipeline to power plant
  • Orca is currently working on expanding the production in adjacent areas


  • Larsen And Toubro: Onshore and offshore surveys, residual process engineering, detailed engineering, procurement, supply, fabrication, construction, commissioning and performance testing


  • 1974 - Songo Songo was discovered
  • 1991 - An agreement was signed by Ocelot International Inc. with the Tanzania Petroleum Development Corporation (TDPC) to develop Songo Songo
  • 2004 - Gas production commenced in June
  • 2012 -Orca launches Songo Songo expansion


  • The main reservoir is developed in Lower Cretaceous aged Neocomian to Albian sandstones (Neocomian), while Upper Cretaceous aged Cenomanian sands that lie unconformably on the Lower Cretaceous provide additional reservoir when developed.


  1. Orca, Tanzania
  2. Songo Songo Gas Field Increasing Reserves & Expanding Gas Distribution
  3. Larsen And Toubro Platform References
  4. L&T bags USD 100 Million Songo Songo 'Gas to Energy' Project in Tanzania
  5. Orca announces commencement of drilling the first well in its $130 million expansion programme

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