Ruche Field Development Gabon(West Africa)

Ruche Field Development Gabon(West Africa)

BWO Offshore Singapore awarded the Phase 2 of Adolo FPSO upgradation project, on back of successful delivery of Gas compressor package for Phase 1. The Phase 2 was primarily brown field work comprising of Riser platform, Inlet Piping Module M26 ( including launchers & Receivers), Riser piping , Utility & Flare Piping with Platforms as well as integration of all the work with existing FPSO facilities. The complete engineering work was modelled in E3D and checked with FPSO laser scanned model to avoid any clashes with existing structures. Module M26 – Inlet Module, was a challenge in itself with few concepts developed simultaneously from being a single 250 MT module (Vs) 5 larger Skids between 45-55 MT (Vs) 14 Smaller skids <15MT, taking into consideration the various lifting options available for installation during the proposal stage. The 14 skids option was finalised at the time of project award. The multilevel module design was first of a kind design (Lego Type bolted 14 Skids along with bolted walkways & stairs ) with minimum welding connections. Hence the skids along with all associated equipment's & piping was fully assembled, tested and dis-assembled for a flaw less re-assembly work @ offshore. Wasco developed the assembly sequence and procedures as well as installation aids for this module along with inputs from BWO teams. The complete module design is in line with DNV FPSO standard and meets the stringent requirements. The design is reviewed and certified by DNV. Wasco successfully delivered the project on 6th Aug, from Batam Fabrication yard, meeting the project objectives on HSES , Quality , Delivery and Budget. Since the project was brown field development , Wasco underwent lot of challenges especially during execution to accomodate variations while still maintaining the original committed delivery due to tight schedule .