OGX Petroleo e Gas Participacoes, a Brazilian oil and gas company, has concluded drilling of OGX-6 and OGX-8 wells, both located in the BM-C-41 block in the shallow waters of the southern part of the Campos basin. OGX holds a 100% working interest in this block.
The OGX-6 well in Etna prospect was drilled to a depth of 3,604mt resulting in evidence of hydrocarbons in the carbonate reservoirs in the Albian and Aptian sections. The OGX-8 well in Fuji prospect was drilled up to 4,110mt and encountered evidence of hydrocarbons in the carbonate reservoirs in the Albian and Aptian sections.
The company said that the drilling activities at both OGX-6 and OGX-8 wells allow for a better understanding of the geological parameters of block BM-C-41, where drilled reservoirs show characteristics similar to those already identified in OGX-2A and OGX-3 wells.
Based on the final well information combined with the 3D seismic data interpretation, OGX estimates recoverable oil volume of between 1.4 and 2.6 billion barrels for the accumulation composed of the pipeline and Etna prospects (OGX-2A and OGX-6). For the potential structure composed by Waimea and Fuji prospects (OGX-3 and OGX-8), the company estimates recoverable oil volume of between 600 and 1,100 million barrels.
The rig Ocean Quest, which drilled the OGX-6 well, as well as the rig Ocean Star, which drilled the OGX-8 well, have been moved to the shallow water of the Santos basin where they are engaged in the drilling of the Natal prospect (OGX-11D) in the BM-S-59 block and the Niteroi prospect (OGX-12) in the BM-S-57 block, respectively.