SURF installation completed ahead of schedule during monsoon season
Project overview
Project name
Mampu-1 FPSO ESP Installation
Location
AJK Field, Sarawak, offshore Malaysia
Developer partners
MISC Offshore Floating Terminals Dua Ltd (MOFT2), a subsidiary of MISC Berhad
Intermoor, Acteon’s Moorings and Anchors business line, was contracted for the installation of several structures on MAMPU-1 FPSO and adjacent platform.
Congested seabed, monsoon and short project timeline
The project was awarded in August and the vessel mobilisation was planned for early November, which gave the project team a limited timeline to ensure offshore readiness for operations.
The work also took place in a very congested subsea environment: the ESP module target landing area at MAMPU-1 was surrounded by production piping, existing bulky structures, and supports which allowed for minimal excursions during the lifting. Finally, offshore operations had to occur during the high-risk monsoon season in Malaysia.
Reliable offshore execution through expert planning
Extended working hours were put in place to meet the tight completion target dates.
The engineering team addressed difficult offshore conditions issues by incorporating additional safety factors into their engineering work including factoring in the most drastic weather conditions into the design to cover all possibilities. A tugger winch and tag lines were used in a mandatory fashion to minimise any movement during installation due to challenging offshore conditions such as sea swell, wind, and vessel pitching.
The team also added alternative routes and scenarios to the offshore procedures and manpower during the offshore installation. They used their long-standing experience with floating assets to ensure careful planning and increased coordination.
The scope of work included:
- Project management
- Engineering
- Offshore operations for the installation of:
- One electric submersible pump (ESP) power generation module on FPSO
- One chute support structure at the Tarpon platform
- One shelter structure at the Tarpon platform
- 1.26 km of subsea power cable between FPSO MAMPU-1 and Tarpon platform.
A fully integrated delivery
Several Acteon business lines have come together on this project, to provide all necessary work to install the ESP system. Whilst Intermoor provided a single interface engineering and project management team, they also utilised UTEC for survey work.
As part of the integrated service, Intermoor also chartered a construction support vessel for the core installation and an anchor-handling tug and barge for the transport of the module and structures.
The work was completed ahead of schedule and without any lost time incidents.
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