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Petrobras makes new ultra-deepwater discovery in Sergipe-Alagoas basin

RIO DE JANEIRO -- Petrobras announced the discovery of a new light hydrocarbon accumulation in ultra deepwaters of the Sergipe-Alagoas basin, at concession area BM-SEAL-10, located in block SEAL-M-424. The discovery took place during drilling of well 1-BRSA-1108-SES (1-SES-172).

The well is 85 km from the Aracaju municipality, off the coast of Sergipe State, at a water depth of 2,583 m. Drilling was completed at a total depth of 5347 meters. This is Petrobras’s fourth important hydrocarbon discovery in ultra deepwaters of the Sergipe-Alagoas basin this year. From August to October this year, Petrobras had announced the presence of hydrocarbon accumulations in wells 1-SES-168 (Moita Bonita), 3-SES-165 (Barra) and 1-SES-167 (Farfan).

The discovery of well 1-SES-172, informally known as Muriú, occurred in reservoirs of the Calumbi formation. The discovery was confirmed through log data analysis. Studies of the pressures recorded in the reservoirs and fluid sampling indicated the presence of light oil. The oil was found in excellent quality reservoirs with a thickness of 67 meters. Petrobras is the operator of the SEAL-M-424 concession, with a stake of 100%.

Petrobras will proceed with logging operations (records of features of a formation) and to gather rock and fluid data in this well, with the aim of preparing the assessment strategy of the new discovery, as well as to characterize the conditions of the reservoirs found. The next step will be to submit the Discovery Assessment Plan to the National Petroleum Agency (ANP).



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