Petrobras announced on Apr. 13 the discovery of hydrocarbons in the pre-salt layer of the Campos Basin, following exploratory drilling in sector SC-AP4, block C-M-477. The well, named 1-BRSA-1404DC-RJS, is located 201 kilometers off the coast of Rio de Janeiro state at a water depth of 2,984 meters.
The company said that electrical profiles, gas indications, and fluid sampling confirmed the presence of hydrocarbons. The collected samples will undergo laboratory analysis to determine reservoir and fluid characteristics and support further evaluation of the area’s potential. Petrobras also said that drilling was completed safely and with respect for both people and the environment.
According to Petrobras, operations in block C-M-477 are part of its strategy to rebuild oil and gas reserves by exploring frontier areas together with other companies. This approach aims to ensure national energy supply during Brazil’s ongoing energy transition.
Petrobras operates block C-M-477 with a 70 percent stake alongside bp, which holds a 30 percent interest. The block was awarded during Brazil’s 16th National Petroleum Agency Bidding Round under a concession regime.
Further studies are expected as laboratory analyses progress to better understand the area’s resources.



