TechnipFMC’s broad offshore portfolio
delivers Moho Nord on target
Moho Nord is one of the largest projects
undertaken by TechnipFMC to date.
The company provided the UFR package—subsea structures, umbilicals, risers, and flowlines—for the Moho Nord
and Moho Phase 1 Bis developments,
including major upgrades on the existing Alima FPU, two riser pulling systems,
installation of transfer lines between the
Likouf FPU and the Moho Nord TLP,
and offshore pipeline installation.
TechnipFMC installed 300 km
of rigid pipe, umbilicals, and flexible pipe. In all, several hundred
TechnipFMC personnel contributed over 10 million man-hours to the
Moho Nord project.
Integrated offering keeps
project on track
Total let the contracts for Moho Nord
Large, complex UFR package
in 2013 during a busy period for the
offshore industry, when marine as-
sets were in short supply. By select-
ing TechnipFMC, the operator could
rely on the full support of the compa-
ny’s in-house expertise, manufactur-
ing capacity, and marine assets. This
broad scope enabled TechnipFMC to
adjust schedules to compensate for
challenges in implementing the multi-
The project’s design phase required
four years of effort from TechnipFMC
engineers, but fabrication and installation of the UFR package was the
company’s largest contribution to
Moho Nord. Total specified a unique
high-pressure gas lift riser umbilical,
or GLU, that required careful design,
thorough testing, and new manufacturing procedures. To fabricate the
GLU and other umbilicals on schedule, TechnipFMC split manufacturing
between plants in the United States
and the United Kingdom, using the
company’s proprietary Vertical Helical
Assembly Machine (VHAM).
The complex subsea infrastructure design required compact modules that could be handled by the
available vessels, plus adaptation of
wellhead connectors to perform in a
small operating envelope.
The project included more than
Commitment to local content
50,000 metric tons of subsea
structures, such as mud mats, mani-
folds, rigid jumpers, flying leads, and
flowline end terminals.
To provide local content and meet the
accelerated schedule, TechnipFMC
worked with a subcontractor to establish a new facility in Pointe Noire to
manufacture mud mat components
and assemble subsea structures,
providing jobs for Congolese workers and demonstrating the extent of
Total’s and TechnipFMC’s commitment to the project.
A fleet of 34 offshore assets supported the Moho Nord project. Two
new-build vessels were deployed, including the Skandi Africa, which is
highly automated for efficient and safe
flexible pipe-laying. The pipe-laying vessel G1200 was extensively modified to
handle multiple construction tasks in
water depths ranging from just 30 m to
1,200 m. The G1200 was used to perform an innovative dynamic positioning
beach pull operation, bringing a pipeline
to shore using thrusters, instead of anchors, to hold the vessel in position.
Project management gets results
With close coordination with Total,
TechnipFMC work was completed on
schedule for first oil in March 2017.
Notably, TechnipFMC achieved an
excellent HSE record throughout a
two-year offshore campaign.
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The pipe-laying vessel G1200 performed construction tasks in water
depths ranging from just 3 m to 1,200 m and completed an innovative
dynamic positioning beach pull operation.