HOUSTON – Harvest Natural Resources has discovered more oil in its current drilling program offshore Gabon.
The Dussafu Ruche Marin-1 (DRM-1) well is being drilled in the Dussafu Marin PSC, which Harvest operates with a 66.667% interest.
DRM-1 well was initially drilled in 380 ft (116 m) of water. On June 10, Harvest announced an oil discovery in the pre-salt Gamba reservoir.
The well was subsequently deepened to a TVD subsea of 11,355 ft (3,461m) to test the prospectivity of the Middle and Lower Dentale formations.
Log evaluation, pressure data, and a fluid sample indicate that Harvest has discovered a second oil accumulation with around 35 ft (10.7 m) of oil pay within the secondary objective of the Middle Dentale.
The Gamba discovery was appraised by drilling a side track (DRM-1ST1) 0.75 mi (1.2 km) to the southwest to test the lateral extent and structural elevation of the Gamba reservoir. It was drilled to a TD in the Upper Dentale of 11,562 ft (3,524 m), encountering 19 ft (5.8 m) of oil pay in the Gamba reservoir.
Harvest now plans to side track DRM-1 to the northwest of the original DRM-1 wellbore to further appraise the extent and structural elevation of the Gamba and to assess Ruche’s commerciality.