Paper Summary
In late 2012, Petrobras and PGS installed the first deepwater optical permanent reservoir monitoring (PRM) system (Thedy 2013 and Dariva 2016) over a pilot area of the Jubarte oilfield. The primary objective of the installation was to validate the fiber-optic sensing technology to detect very subtle (less than 2%) 4D elastic attribute changes in the post-salt reservoir. The goal was achieved. The high quality 3D/4D images provided by the permanent system enabled improvement in the understanding of flow patterns and allowed updating of the geological model.