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Melut Basin

 

The Melut basin is a member of a trend of rift originating basins extending from the Benue Trough in Nigeria through north central Africa into Sudan.

 

Sud

The Melut Basin appears to be a bifurcation of the failed Muglad Rift Basin. Anticlinal structures, formed by post deposition compressional adjustments, are the trapping mechanism in the area.

 

Hydrocarbon accumulations are contained within the Yabus formation at a depth of 3350 to 4250 feet in the Adar Yale region. The Yabus formation has nine separate sand members in the Adar Yale area.

 

The basin shows thick accumulation of clastic sediments of the fluvio–lacustrine type ranging in age from Cretaceous to Quaternary, and yield typically waxy crudes from non-marine source rocks.

 

Source rock analysis indicates that oil generation from Paleocene source rocks may have occurred in adjacent synclinal regions where the shales are at depths in excess of 3000 ft. No oil prone source potential appears to occur within the Yabus formation, although minor gas prone source appears to exist.

 

In this basin, Adar 1 was the first well drilled in the area.  The well discovered oil in the Yabus formation. Subsequently, two more wells, Adar 2 and Yale 1, drilled on this structure produced oil from the same formation.

 

Block 4

The passive sismic data library covers a surface of ~250 sq Km