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SudanExploration.Com Sudan In Africa Khartoum Port Sudan SUDAN Geography Largest country in Africa (area 2.5 million sq. km) Landscape generally flat & featureless plains, dominated by the Nile River and its tributaries. Climate: Tropical in the South, Savannah in the Center and arid desert in North. Rainy Season: May – November Hydrocarbons Proven Oil Res. (2010) 6.8 Billion Proven Nat. Gas Res. (2009E) 3 Trillion Oil Production (2009E) 486 MBOPD Trouble Areas A 11 9 Total of 23 blocks ranging in size from About 155 km 2 (Blk. 1b & 2a) to 135,030 km 2 (Blk. 14). Exploration History: AGIP (1959) drilled 6 wells in Red Sea DIGNA (1966-72) aeromagnetics Red Sea & NW Desert Ball & Collins, American Pacific, Adope awarded blocks in 1974 Chevron (1974) awarded 516,000 km 2 SW & SE interior basins Chevron (1977) abandoned Res Sea after couple of gas & gas condensate discoveries Original Chevron discovery was made at Unity 1 in 1978 Sun Oil drilled 6 wells in central & north central Sudan; terminated in 1990 State Petroleum Company awarded 1, 2 & 4 in 1993 and drilled wells until Talisman took over within GNPOC in 1998 Pipeline completed about in 1999 Oil discovered in Melut basin in 2002 @ Palogue North and South Sudan separated in2011 Major Oil Port: Port Sudan Major Refineries: Khartoum (100.000 B/D) Port Sudan (21,700 B/D) El Obeid (10,000 B/D) Pipelines: Gas - 156 km Oil - 4070 km Product - 1613 km 17 11 9 Petro-Energy E&P Company Ltd Prod 40,000 BOPD Water-cut : 45% API : 18 o Producing Assets as of April 2009 Block 1, 2, 4 (GNPOC) Greater Nile Petroleum Operating Company Prod 155,000 BOPD Water-cut : 83% API : 33 o Block 3, 7 (PDOC) Petrodar Operating Company Ltd Prod 285,000 BOPD Water-cut : 31% API : 25 o Block 6 Block 5A, 5B, 8 (WNPOC) White Nile Petroleum Operating Company Prod 17,500 BOPD (Block-5A) Water-cut : 34% API : 21 o Plate Tectonic Setting: Global Events 1. Permo Triassic Opening of Neo Tethys Continental Fragments Split from North Africa 2. Early – Late Cretaceous Opening of the Atlantic Ocean A dextral transform fault extended into Africa, creating a strike-slip faulting Central African Shear Zone (CASZ) and related transtensional basins in Central Africa. 3. Middle – Late Eocene Central African Shear Zone (CASZ) Assessment of Undiscovered Oil and Gas Resources of the Sud Province, North-Central Africa; USGS USGS estimated mean volumes of 7.31 billion barrels of oil, 13.42 trillion cubic feet of gas and 353 million barrels of natural gas liquid. Area contains 113 oil fields (18 in Chad and 95 n Sudan). Producing fields and recent discoveries limited to Cretaceous- Tertiary rift basins Resource estimate does not include the Anza basin and the Tertiary discovery the Lake Albert basin of Uganda. Collision of Eurasian and African plates Creation of NW-SE compressional stress Induction of NE-SW tensile stress Activation of East African Rift (EARS) Plat Margin Central Africa Shear Zone & Related Sudanese Basins Oil Offset of rift segments of the Central African Rifts System is also opposite to the direction of actual displacement across the Central African Shear zone (CASZ) – evidence for a transform fault Kaffra Basin-Oil & Gas Shows Tiffa-1 Tenere Block-Oil Shows Saha-1 Agadem Block 350 mmbblls OIP Sedigi Field 150 mmbbls Upper Benue Trough Gas Discovery 33 bcf Anambra Basin Oil Seeps & Gas Shows Doda Basin Reserves 1 bn bbls Muglad Basin Reserves 1.2 bn bbls Melut Basin Reserves +1 bn bbls Blue Nile Basin Tawakul-1 @ 1.2 mmcf/d Oil & Gas Show Albertine Basin Reserves 1.0 bn bbls Resources 1.5 bn bbls A’ A B’ B C’ C D’ D Model for Development of Muglad Rift Basin Kingfisher Discovery, Lake Albert Rift (3 way dip closure with up-dip basement footwall seal Probable petroleum prospective areas (shaded black or grey) in the NW Kenya rifts basins Uganda Ngassa-2 well drilled to depth of 3822m where an over pressured interval was encountered. Well tested structure w/ area of 150 sq km
