TRACK RECORD
Leiv Eiriksson
Derrick Removal/Refitting
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Frontpage - Leiv Eiriksson sailing under the Bridge over the Bosporus Turkey.
Picture 1 - Departure from Westcon Ølen with derrick top on deck.
Picture 2 - Moored at Yard in Turkey
Picture 3 - Derrick top lifted from deck and ready from skidding in place
Picture 4 - Derrick top being skidded in location
Picture 5 - Derrick top reinstalled and rig ready for operation
Scope description
When Leiv Eiriksson left the Westcon yard at the beginning of December 2009
after a one month stay the rig had been transformed. During the yardstay period
the upper part of the derrick had been carefully detached, skidded over to a
jacking frame, jacked down to the deck and sea fastened ready for the rig's
journey down to Turkey.
This operation was necessary for Leiv Eiriksson to be able to pass under the
bridges in the Bosporus Straits on the way to a multiyear contract in the Black
Sea.
In addition to the work on the derrick also thrusters were removed, overhauled
and reinstalled and the external part of the exhaust system was replaced. Further
maintenance and improvement work was also performed whilst the rig was
quayside.
A small number of personnel were on board Leiv Eiriksson on departure from
Ølensvåg and for the trip under the bridges in the Bosporus.
During January 2010 the Westcon project personnel joined the rig for the
reinstatement of the top of the derrick.
TRACK RECORD
Development Driller II
Derrick Removal/Refitting
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Frontpage - Development Driller sailing under the Bridge over the Bosporus Turkey.
Picture 1 - Rope technicians at derrick split location
Picture 2 - Installation of temporary reinforcement on pipe deck
Picture 3 - Installation of temporary in derrick
Picture 4 - Lifting towers on the pipe deck
Picture 5 - Derrick top skidded off, ready to be lowered onto pipe deck.
Scope description
Early May Westcon received request for removal/refitting derrick of the DDII for
operation in the Black Sea. First modelling started mid May and cutting of first
temporary steel started end of May. Rig inspection was done in Gibraltar early
June and scanning and detailed planning was done under transit. 10th of June
mobilizing of workforce and equipment started.
In the meantime the engineering with calculations and drawings continued in 5
different location in Norway; Stavanger, Haugesund, Florø, Ølen and in Poland,
Szczecin.
Temporary steel for the derrick split arrived Palermo early July, in total 80 tons
of steel for temporary derrick reinforcement and 140 tons for temporary deck
reinforcement.
August 21th the top of the derrick was resting on the pipe deck ready for sea
fastening. Total weight of derrick top, lifting towers and temp steel supported on
pipe deck is 1300 tons.
Early Sept, the rig sailed through the Bosporus and Sept. 10th reinstallation of
the derrick commenced in Romania. Sept. 20th the derrick was reinstalled and
integration testing started.
This project is a showcase of the flexibility of the Westcon Group, proving the
ability for all different location to work together and to swiftly respond to
customers requirement ensuring successful delivery of the project.