Senegal is due to become an oil producing nation later this year when Woodside brings onstream the Sangomar field which should lift 100,000 bbls of oil per day to the surface. The SNE-1 well, which discovered Sangomar, was the second well drilled in Senegal in 2014, after the FAN-1 well discovered oil in a Lower Cretaceous base of slope turbidite fan, the largest global discovery that year (before SNE-1 replaced it).
The FAN-1 well found no oil-water contact in a gross oil bearing interval of more than 500 m, with oil types, indicated from a number of oil samples, ranging from 28° API up to 41° API . The gross STOIIP estimates for the FAN-1 well range from 250 MMbbls (P90), 950 MMbbls (P50) to 2,500 MMbbls (P10).
FAN-1 was followed up with the FAN South-1 well in 2017, which again encountered a Lower Cretaceous hydrocarbon bearing reservoir with 31° API oil recovered. These are the only two penetrations of the oil-charged turbidite reservoirs in the Sangomar Deep block, which is now open following Woodside’s relinquishment in 2022 to focus on the Sangomar FPSO construction.
The high-quality 3D seismic data on the newly designated block is now available for Multi-Client licensing through GeoPartners. GeoPartners are currently interpreting the data and integrating the regional knowledge gained from the regional seismic interpretation study completed last year as part of the efforts to promote a farm in partner for Block 4B in Guinea-Bissau.
With proven oil on the block, API ranges indicating multiple active sources, and infrastructure and skills now available in country, is it time for FAN to be appraised and developed?
Further information at geopartnersltd.com
