The Gavea A1 well in presalt Block BM-C-33 of the Campos basin encountered a 175-m hydrocarbon column in a good-quality reservoir of silicified carbonates of the Macabu formation.
The well, which lies in ultradeep waters offshore Brazil, reached a total depth of 6,230 m and was successfully tested producing around 16 MMscfd of gas and 4,000 b/d of oil through a 32/64-in. choke.
Gavea A1 is the fourth appraisal well on the license, which includes the Seat; Gavea (OGJ Online, June 28, 2011); and Pao de Acucar (PDA) discoveries (OGJ Online Feb. 27, 2012). In 2013-15, the consortium drilled and tested the Seat-2, PDA-A1, and PDA-A2 appraisal wells.
With the Gavea A1 results, the consortium has finalized appraisal activities on BM-C-33 and will now evaluate the subsurface data and assess development concepts.
As part of a deal that was reported in December 2015, Statoil is slated to take over operatorship of the license in the third quarter, subject to the approval from Brazilian authorities (ANP) (OGJ Online, Dec. 11, 2015).