Matanda refresh...part 123 Jun 2021 12:18
AFEX holds a 25% PI in the gas and condensate-rich Matanda Block in the Republic of Cameroon.
Cameroon Jungle
AFEX's Head of Subsurface Exploration at an oil seep location near the Matanda Block
The Matanda Block, containing the North Matanda Field, is situated in the Gulf of Guinea, one of Africa’s richest hydrocarbon zones. With an area of 1,235 square kilometres covering both an onshore and offshore portion of the Douala Basin the Matanda Block is advantageously sited adjacent to West and Central African commercial/industrial heartland centred on the port city of Douala. The Matanda Block’s location positions it as a strategic supply of natural gas for the region’s future economic growth.
The Upper Cretaceous North Matanda Field was first explored by the Gulf Oil Corporation in the 1980s and to date three offshore wells drilled on the Matanda Block have tested both gas and condensate from the field. The Upper Cretaceous Logbaba gas and condensate field, brought into production in 2011 by Victoria Oil and Gas Plc (VOG), lies just a few kilometers up-structure to the northeast of the North Matanda Field. The Matanda Block also contains additional Cretaceous prospects and Tertiary prospects that offset the Moambe and Zingana discoveries drilled in 2015 by BowLeven Plc, in the adjacent Bomono concession.
2014 testing on the Matanda Block
AFEX won the Matanda Block in an international bidding round held in 2007 and, together with Glencore Exploration Cameroon Ltd (Glencore), signed a Production Sharing Contract (PSC) in April 2008, with Glencore being appointed operator. Between 2009 and 2014 AFEX and Glencore’s development activities included detailed geological studies, 150 kilometres of onshore 2D seismic, approximately 200 square kilometres of 3D seismic over the offshore part of the Matanda Block and completion of the NM-3x exploration and appraisal well that tested seismically-defined targets in the Tertiary and Cretaceous. This programme has resulted in the extension of the Matanda Block’s previously proven hydrocarbon area, discovery of new reservoirs and increased estimates of both gas and condensate resources.
The Atwood Aurora jack-up rig contracted to drill on the Matanda Block
In 2011 and 2014 ERCL, an independent specialist in upstream oil and gas consultancy, reviewed Glencore’s estimates of resources for the North Matanda Field and concluded that the P50 “gas-in-place” volume of 1,864 Bcf with “condensate-in-place” of 136 mmbbl were valid estimates for the area within the limits of the 3D seismic survey (note this is only 16% of the total area of the Matanda Block). ERCL also concluded that the North Matanda Field and the Logbaba Field are part of the same structure, now named the “Matanda – Logbaba Structure”, and that the reservoirs are likely to extend over a significant area outside of the limits of the 3D survey, making the North Matanda Field potentially one of the largest wet gas accumulation