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base is very important to have.”
“I actually came across Deltamarin for
the first time in the cruise business,” says
Sorensen, recalling his personal history with
Deltamarin. “I went to Miami in 1997 and
worked in the cruise business there. I vaguely
knew Markku Kanerva, but I don’t think we
did any actual business together. I know that
Royal Caribbean had some business with
Deltamarin, and they knew Markku.”
“In 2008, I took on a senior naval architect
position in Teekay Petrojarl in Trondheim.
From there on, I was involved in a lot of exciting
projects. One time, we needed some resources. I
can’t remember how it started, but Deltamarin’s
Chief Structural Analysis Engineer Timo
Mikkola and I got along very well. Timo and I
did many things together, and he served as my
gateway into Deltamarin, as he assisted me on
various issues. Fatigue calculations were among
the big issues at the time.”
Prior to Petrojarl Foinaven, Teekay had
brought in Deltamarin to assist it on two
FPSOs, Petrojarl Knarr and Petrojarl Banff.
For Knarr, Deltamarin performed a third-party
strength and fatigue analysis for the riser table
and its interface to turret structures, as well as
a review of riser table and turret design loads.
Petrojarl Banff, on the other hand, suffered a
multiple mooring line break in a severe storm
in the North Sea in 2011. Deltamarin provided
the customer technical support during the
demanding fast-track re-instalment project.
“Knarr was a newbuilding and, when it was
built, we got Deltamarin involved to help us
with some fatigue calculations,” says Sorensen.
“With Banff, we had problems with structure
and calculations, and Deltamarin helped us
to verify some of the calculations.” In the Banff
project, Deltamarin was also engaged during
the yard stay for the full marine structural
redesign, including redesign of the turret
moonpool.
Sorensen says that his greatest success
working with Deltamarin was twofold:
“Deltamarin helped us with Banff turret
calculations. We developed that together. We
had the expertise, but we didn’t know how to do
the calculations in detail. Another success was
the turret beam, the central part of a FPSO. That
calculation is extremely complex, and very few
people know how to do it. I had some senior
people working with me: two doctors and Timo,
who is also a doctor, and together we developed
the methodology to calculate the turrets. I think
that’s probably the greatest success. Another
success in offshore business was the Knarr. I’d
like to think that that’s the state of the art as far
as harsh weather FPSO goes.”
SUCCESSFUL CLIENT STORIES
Trond Sorensen, Senior
Naval Architect, Teekay
Petrojarl Production
AS (currently known as
Altera Infrastructure).