Jumbo Offshore completes mooring pre-installation for Errea Wittu FPSO Offshore Guyana
Jumbo Offshore has completed mooring pre-installation activities for the FPSO Errea Wittu for Exxon Mobil Guyana Ltd. at Uaru Field, Stabroek Block, Offshore Guyana, on behalf of Modec. The scope of work included the installation of suction anchors and the pre-lay of mooring lines in preparation for FPSO hook-up. In this blog, which was recently published on Upstream, we will explore how Jumbo Offshore delivered the fifth FPSO in the country.
Jumbo Offshore has successfully delivered mooring pre-installation activities for the Errea Wittu floating production, storage and offloading vessel (FPSO) at the Uaru development. The project marks an important milestone in one of the largest offshore developments currently underway in South America.
The work was executed for ExxonMobil Guyana Ltd. at the Uaru Field within the Stabroek Block, offshore Guyana, on behalf of MODEC.
The scope of the campaign encompassed the installation of suction anchors and the pre-lay of mooring lines. Completion of the pre-installation phase paves the way for the forthcoming hook-up and commissioning stages for the FPSO, an important production hub in the Uaru development.
Jumbo Offshore executed its work scope with the J-class heavy lift and installation vessel, Fairplayer. The DP2 J-class vessels, 144.1 m by 26.7 m, are fitted with two 900 t cranes for a combined lifting capacity of 1,800 t. The vessels are designed to handle complex heavy subsea structures and mooring components.
Secure foundation
Fairplayer was deployed 200 miles offshore Guyana where she performed her deep-water installation works at depths of approximately 1,650 m. In addition to the installation scope, Jumbo Offshore was also responsible for engineering, procurement, mobilisation and marshalling activities, ensuring the project’s execution in accordance with robust safety and technical requirements.
The installation of suction anchors provides the secure foundation necessary to anchor the FPSO’s mooring system. Once installed, mooring lines were pre-laid on the seabed in readiness for the vessel’s arrival. The completion of the mooring pre-installation campaign demonstrates Jumbo Offshore’s capability in executing complex deepwater installation projects.
Safe and successful
Freek Muurling, Project Manager at Jumbo Offshore expressed pride in the performance of his team and subcontractors. He said, “The team demonstrated full focus on engineering, procurement, documentation, and meticulous planning in sometimes challenging circumstances. The yard and offshore teams’ resilience and teamwork led to a safe and successful completion of the mooring line installation campaign.”
Ultimately, he continued, the success of the project was due in large part to the transparent and constructive relationship between Jumbo Offshore, MODEC and Exxon which, he said, created a strong spirit of collaboration, resulting in a safe and efficient execution.
Abundance
The Uaru field is one of several developments located in the 26,800 km2 Starbroek Block. It is scheduled to commence production later this year. At its peak, the field will produce 250,000 bpd.
The Errea Wittu, the name of which means ‘abundance’ in the Warrau language native to Guyana, is the fifth FPSO in the country. In addition to oil production, the FPSO will be equipped to treat 540 million cubic foot gas per day and will also feature a water injection capacity of 350,000 barrels per day and a produced water handling capacity of 300,000 barrels per day. It will provide storage capacity of 2 million barrels.
