For its first-ever high-pressure carbonate reservoir development and first deepwater project outside Norway, Equinor required an optimised development solution that reduces complexity and uses proven technology to limit schedule risks towards first oil for its Bacalhau Field project. The partners in the Bacalhau project are Equinor (40%, operator), ExxonMobil (40%), Petrogal (20%), and Pré-Sal Petróleo S.A (PPSA, PSA manager).
To help Equinor unlock Bacalhau’s full potential, during the pre-front-end engineering and design (pre-FEED) phase, Subsea Integration Alliance leveraged early engagement, close collaboration, and a digital field development solution to overcome the many challenges—such as high reservoir heterogeneity, high pressure, and ultrasaline formation water—that this ultradeep presalt prospect presents. It also reduced potential risks and delays to the project while increasing subsea performance.
Equinor awarded Subsea Integration Alliance, as a result of a competitive tender, the FEED study and an engineering, procurement, construction, and installation (EPCI) contract for the subsea production system (SPS) and subsea umbilicals, risers, and flowlines (SURF) scopes, representing Brazil’s first integrated SPS and SURF project. The alliance’s integrated model and Equinor contract strategy have enabled the team to place purchase orders for long lead items (LLIs) early, during an accelerated FEED stage, with the goal of shortening the schedule to first oil.
The SPS scope includes nineteen 15,000-psi vertical monobore subsea tree systems and associated subsea equipment, including subsea wellhead systems, subsea control systems, OCS-V™ vertical clamp connection systems, and a full completion workover riser. The SURF scope includes approximately 145 km [90 mi] of rigid risers and flowlines and 40 km [25 mi] of umbilicals, with offshore installation activities scheduled for 2022 and 2023. The integrated field development plan provides Equinor with capex and schedule assurance and enables the company to manage the total cost of ownership over the 30-year life of field while meeting local content requirements.
Keep up with how the Bacalhau Field project is progressing by periodically checking the timeline below, which will be updated as the project reaches its milestones.