The Tupi field, located in the pre-salt formation of the Santos Basin, has surpassed 4,000 million barrels of oil equivalent of cumulative production, becoming the first reservoir in Petrobras’ history to reach this volume.
The milestone coincides with the 20th anniversary of the discovery of the Brazilian pre-salt, an oil province that transformed Brazil’s technological capacity to produce hydrocarbons in ultra-deepwater and currently constitutes the company’s primary production source.
Tupi began commercial production in 2010, after Petrobras and its partners developed new solutions to overcome the geological and operational conditions associated with reservoirs located beneath a thick salt layer.
Tupi Turned Pre-Salt into an Industrial Platform
The reservoirs are located at great depths below the seabed and beneath an extensive salt layer, which introduced challenges related to drilling, completion, production, multiphase flow, materials, corrosion, processing, and offshore logistics.
Salt also adds geomechanical complexity and can exhibit deformations that must be considered during drilling and well design.
Petrobras had to develop and adapt technologies capable of operating under these conditions, progressively turning the pre-salt into a knowledge platform for the exploitation of deepwater and ultra-deepwater fields.
One Million Barrels per Day Redefines the Scale
During 2026, Tupi again exceeded an average production of 1 million barrels per day, a level the field had already reached for the first time in 2019.
The magnitude is extraordinary when viewed from the perspective of a single asset. Sustained production of 1 million barrels per day would be equivalent, in purely volumetric terms, to approximately 365 million barrels annually.
Naturally, actual production fluctuates and the daily indicator does not mean the field maintains exactly that level every day of the year.
And there is a second consideration: achieving large volumes does not depend solely on having reserves. It requires maintaining for years the availability of wells, subsea systems, flowlines, FPSO units, processing facilities, and associated logistics.
Pre-Salt Dominates Petrobras Production
According to the company’s 2026-2030 Business Plan, this province could represent up to approximately 82% of Petrobras’ total production during the period. It becomes the strategic center of Petrobras’ upstream portfolio.
The concentration has clear advantages: high-productivity fields and offshore infrastructure developed over years.
But it also introduces a reliability consideration that warrants monitoring: the greater the share of a producing province within a company’s total volume, the greater the importance of maintaining the availability of its critical assets.
In other words, Petrobras’ future performance will depend largely on its ability to continue developing, operating, and maintaining highly complex offshore systems.
SOURCE: https://www.offshore-energy.biz/
