Tanzania
Overview
Orca Exploration Group operates one licence in Tanzania which comprises two blocks known as the Discovery Blocks. The license has a total area of approximately 41,630 acres (170 km2). The blocks are located in shallow water approximately 15 kms off the coast and 200 kms south of Dar es Salaam. The license contains the large Songo Songo gas field which is positioned on and slightly offshore Songo Songo Island (SSI). 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.
As at December 31 2009 the audited Songo Songo Proved and Probable (2P) Gas Initially in Place (GIIP) is 1,236 Bcf, while the remaining recoverable 2P reserves are 689 Bcf. Orca Management estimates the Base (mid) Case GIIP to be 1,571 Bcf. To the end of 2009, 100 Bcf of gas (sales plus fuel and flare) has been produced in approximately five and a half years of un-interrupted production.
Orca operates a gas processing facility on SSI on behalf of Songas Limited (Songas) on a no loss, no gain basis. The plant supplies natural gas to a 25 km 12” offshore pipeline and a 207 km 16” onshore pipeline and is used by the power sector and industrial markets in the Dar es Salaam area. Songo Songo was Tanzania’s first natural gas development.