ION completes 2D seismic survey offshore Namibia

Offshore staff

WINDHOEK, Namibia – ION Geophysical has completed the interpretation of a 2D seismic survey on block 2113A in the Walvis basin offshore Namibia, Nabirm Energy Services announced.

The license block covers 5,750 sq km (2,220 sq mi), with 3,600 sq km (1,389 sq mi) located offshore and 2,150 sq km (830 sq mi) located onshore.  

Using M/V BGP Pioneer, BGP International acquired the survey. Earlier this year, the same vessel completed ION Geophysical’s NamibiaSPAN 2D survey. BGP Pioneer acquired 684 line km (264 sq mi) of 2D seismic data plus ship borne gravity and magnetic data within block 2113A. The survey was acquired with a single 9-km (5.5-mi) cable towed 8 m (26 ft) below the sea surface. Acquisition was completed in March. Parallel Geoscience processed the 2D seismic data in April and May 2015. ION Geophysical was contracted to perform the 2D seismic interpretation.

Nabirm said that the objective of the seismic interpretation was to identify key depositional features, structural features, and anomalous reflection packages. The most significant surface within the dataset is a strong reflector at the top of a thick succession of low frequency reflectors.

Using the NamibiaSPAN 2D data, these horizons were correlated into block 2113A. In addition to these regional horizons, local surfaces were identified from the PEL 58 2D seismic survey exploration grid.

Additionally, ION mapped six leads with total Pmean unrisked recoverable resources of more than 520 MMbbbl. The stratigraphic lead designated Ondo is the largest and of principal interest, with a Pmean of around 230 MMbbl.  The stratigraphic lead designated Ekiti is slightly smaller and exceeds 200 MMbbl. The oil was confirmed to be a light 40° API.

Nabirm is currently offering block 2113A for farm-out. It was awarded petroleum exploration license 0058, which included block 2113A, in July 2013. NAMCOR is Nabirm’s partner on block 2113A.


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