(epbr) ExxonMobil plans to start drilling in deep waters of the Sergipe-Alagoas Basin in the second half of 2021, said Alberto Ferrin, vice president of the oil company in Brazil.
The company is licensing 11 exploratory wells in the basin, in areas of the 13th, 14th and 15th bidding rounds of the ANP, when it acquired the operation of blocks SEAL-M-351, SEAL-M-428, SEAL-M-430, SEAL- M-501, SEAL-M-503, SEAL-M-573. The well closest to the coast is 67 km from the city of Brejo Grande, in Sergipe.
ExxonMobil (50%) is the operator of new exploratory blocks in a consortium with Enauta (30%) and Murphy Oil (20%) in the Sergipe-Alagoas Basin. It also has a stake in another 17 blocks in the Campos and Santos Basins, in addition to being part of the consortium with Equinor and Petrogal in the development of production in the Bacalhau field, in the Santos Basin pre-salt.
“We are making progress in drilling plans for Exxon’s first well in Sergipe-Alagoas. Forecast is in the second half of 2021 ”, said the executive.
According to Ferrin, the oil company has a lot of interest in the area, considered “strategic”.
“It is a strategic area, with a lot of interest. Sergipe is a play, strategically, very important for us (…) We are constituting a robust source of future development ”, said Ferrin.
“Obviously ExxonMobil is very interested in play. We significantly increased participation in the Sergipe-Alagoas Basin during the cycle of permanent offers together with our partners, ”he said during the event.
Betting on Sergipe gas
The Sergipe-Alagoas Basin is currently the main bet for the production of offshore natural gas outside the Santos Basin after the discovery of Petrobras’ Poço Verde, in deep waters, which has 11.9 billion (P50) of m³ of natural gas in place (VGIP). The volumes are estimated for one of the reservoirs explored during the discovery assessment plan (PAD) of well 1-BRSA-1022-SES, started in 2013 and completed in 2018. The PAD encompasses areas of the BM-SEAL-4A contracts (where ONGC is a partner with 25%) and BM-SEAL-11 (100% Petrobras).
The volume of gas in place of Poço Verde, of 11.9 billion m³, corresponds to the P50 estimates, a scenario with a 50% probability of occurring (best estimate). In Petrobras’ analysis, the estimates for the reservoir where the gas accumulations were found vary between 5.8 billion (P90), 11.9 billion (P50) and 24.4 billion (P10). In place volumes do not represent the total that can be commercially recovered.
There are also volumes of oil in other reservoirs, which total about 36 million m³ (P50) or 226 million barrels in place.
Sergipe reserves are even greater. The Poço Verde data are contained in documents sent by Petrobras to the ANP, in which the company requests an extension of the deadline for declaring Poço Verde’s commerciality for five years, because it understands that another PAD, that of Moita Bonita, may have a correlation with the future field. In the documents that epbr had access to, Petrobras does not inform the volumes discovered in Moita Bonita. If the extension of the term is approved, the declaration of commerciality of Poço Verde is for 2023.
Petrobras is licensing a 128 km long gas pipeline to drain the production of natural gas from the production projects of the Farfan, Barra and Muriú reservoirs, in the BM-SEAL-10 and BM-SEAL-11 exploration blocks, in waters deep waters of the Sergipe-Alagoas Basin. The production of module 1 in the region will be made from an FPSO with the first oil scheduled for October 2024.
The current project foresees that the field will be produced by an FPSO with a capacity of 100 thousand barrels per day and 8.5 million m³ per day of natural gas interconnected to 15 wells, five of which are oil producers, four are convertible water injectors. gas injectors, three water injectors and three gas producers. The oil will be drained by offloading.