Petroleum Africa
Find us on: 
Sunday, November 15, 2015
Nabirm saw the completion of the interpretation of a 2D seismic survey on Block 2113A in Namibia’s Walvis Basin by ION Geophysics. The license block covers 5,750 sq km , with 3,600 sq km located offshore and 2,150 sq km located onshore.
BGP International using the vessel M/V BGP Pioneer acquired the survey; earlier in 2015 the same vessel completed the Ion Geophysical NamibiaSPAN 2D survey in offshore. The M/V BGP Pioneer acquired 684 line kilometers of 2D seismic data plus ship borne gravity and magnetic data within Block 2113A. The survey was acquired with a single 9-kilometer cable towed 8 meters below the sea surface. Acquisition was completed in mid-March. Parallel Geoscience processed the 2D seismic data in April and May. Ion Geophysical was contracted to perform the 2D seismic interpretation and received/loaded the processed 2D dataset into SMT/Kingdom in July, the final reports were published on November 4.
The objective of the seismic interpretation was to identify key depositional features (reflection types, continuity, terminations, downlap, toplap, onlap), structural features (highs, lows, faults and fault styles including normal, reverse, strike-slip) 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. Utilizing 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 and are described as Surface 1, Surface 2, Surface 3 and Basement. Time structure maps, depth structure maps, isochrons and isopachs have been generated for these key horizons.
In addition, ION mapped six leads with total Pmean unrisked recoverable resources of over 520 million barrels of oil. Nabirm said that the stratigraphic lead designated as ‘Ondo’ is the largest and of principal interest with a Pmean of around 230 million barrels of oil. The slightly smaller ‘Ekiti’ lead exceeds 200 million barrels of oil.
Olayinka Arowolo, CEO of Nabirm, commented “ION’s interpretation of Nabirm’s data; the established oil kitchen in the Walvis Basin confirming light 40 API degrees gravity oil; the oil shows onshore on Eco Atlantic’s Daniel Block which prompted the drilling of the Toscanini Well; and the slicks evident in the region from the Fugro Oil Slick study that was completed for Eco Atlantic, all indicate that Exploration in blocks adjacent to PEL 58 identify an ‘oil mature fairway’.
“Hydrocarbons generated within this fairway would be migrating eastward and updip toward Block 2113A. In onshore blocks, exploration is focused on Karoo age sediments. There is a high likelihood of Karoo sediments in Block 2113A. The Lower Cretaceous Twyfelfonte in Sandstone has been mapped exrensively onshore and likely extends into the offshore area. The Twyfelfontein Formation – Verbrande/Tsarabis/Huab Formations would be key reservoir – source rock components of a viable Petroleum System within Block 2113A. We still have significant work to do and further study is required, with shallow water depths and shallow drilling depths, we are intrigued by this very interesting Block.”
" alt="First LNG Realized at the Greater Tortue Ahmeyim Project">
" alt="United Energy Acquires Western Desert Producer APEX">
" alt="Baker Hughes Announces Major Gas Technology Orders for Venture Global LNG">
" alt="ReconAfrica: Naingopo Results Demonstrate a Working Petroleum System">
" alt="Tullow Highlights 2025 Operational Plans in Ghana">
" alt="TotalEnergies to Supply 1.5 TWh to STMicroelectronics in France Over 15 years">
" alt="Rockhopper Reaches Final Settlement with United on Egypt’s Abu Sennan Concession">
" alt="Oil & Gas Crucial for African Growth: AEC Calls for Industry Support to Defend African Market">
