Global Petroleum is licensing historical 3D seismic data in its offshore Namibia Block, 2011A (PEL0094) after striking a deal with the National Petroleum Corporation of Namibia (Namcor).
Global Petroleum is licensing historical 3D seismic data in its offshore Namibia Block, 2011A (PEL0094) after striking a deal with the National Petroleum Corporation of Namibia (Namcor).
This key data, acquired by previous licensees in 2010, covers the company’s Welwitschia Deep prospect and Marula lead and will enable precise mapping of these features.
In return for the right to license this data, Global has agreed to transfer to Namcor a 7% participating interest in PEL0094, bringing its interest up to 17%.
The 3D seismic survey covers an area of 1583 km2, including PEL0094 (Block 2011A), with the remainder in Block 1911 to the north.
Plays have been estimated in the Upper Cretaceous and Paleocene sandstones, which include the Marula lead, but with further potential in both the east and west of PEL0094; Lower-Upper Albian basinal sandstones in the south-eastern part of PEL0094 (same age play as was proven by the Cormorant-1 well); and the Lower Albian-Upper Aptian shallow water carbonates, which include the Welwitschia Deep prospect, but with further potential identified in the NE of PEL0094.
The Prospective Resources are all interpreted to be sourced from the Aptian marine ‘Kudu Shale’ mudstone, which is a world-class quality source rock in the wells at Kudu, Moosehead-1, Murombe-1 and Wingat-1. At the latter, also within the Walvis basin like PEL0094, high-quality, light oil was recovered to the surface.
Gas has been sampled in seabed cores to the east of the Welwitschia Deep prospect and Marula lead and within PEL0094. This supports the interpretation that the source rock has been buried within the licence to, at a minimum, the main oil window of maturity.
The Welwitschia Deep prospect is a fault and dip-closed structural trap in the Albian carbonates, as are the Gemsbok, Lion and Dik Dik prospects in the company’s PEL0029 licence, which is immediately adjacent to PEL0094 to the west. Welwitschia Deep forms part of the significant prospectivity in the deeper Albian Carbonates (Welwitschia Deep).
The Marula lead is a stratigraphic trap, where the Upper Cretaceous, deep water sandstones pinch out to the west on to the Welwitschia structure. There is strong evidence of an excellent lateral seal 4 km to the west of the Marula lead.
