FPSO
Shuttle Tanker
750 to
800 m
Water Depth
Post salt
layer
Reservoir
layer
0 m
1,500 m
2,300 m
  •   DRILLING For the first time in Brazil, a special technique (known as pump & dump) was used in drilling to achieve the proper inclination. Once the necessary depth was reached, horizontal drilling began, which also required advanced technologies applied in a customized manner.
  •   LOWER COMPLETION After drilling the horizontal section, the fluid used is replaced by completion fluid and special screens are ran to contain formation sand. These screens are packed with gravel (filtering agent) to prevent formation sand from being mixed with oil, which can damage the ESP (eletric submersible pump) and surface equipment.
  •   FORMATION TESTING In this phase the reservoir productivity is assessed and the necessary parameters for Field development are obtained, such as productivity rate, reservoir pressure, and permeability. Also at this stage, oil samples contained in the reservoir formation are collected.
  •   UPPER COMPLETION After the gravel, well is secured for a temporary abandonment. BOP is retrieved and the Subsea Horizontal Christmas Tree (HWCT), a system that controls oil flow from reservoir to the FPSO.
  •   SUBSEA LAYOUT Pipelines are installed to enable oil flow and control lines to remotely operate the Subsea Horizontal Christmas Tree. The system is responsible for controlling and monitoring the well and the submersible centrifugal pump, which pumps the oil to the surface.
  •   PRODUCTION The Floating Production Storage and Offloading Unit (FPSO) processes the produced oil, separating water and gas through a process plant and utilities specifically designed for Atlanta oil. The oil is exported by a shuttle tanker, gas is consumed internally and water, after treatment, is discarded at the sea.