Engineering and Support for Offshore Operations
The installation phase of an offshore project inevitably
carries substantial cost and risk. Successful installation
campaigns require thoroughly engineered offshore operations,
with the utmost attention to detail. KW has a strong
record of working closely with contractors to optimise
cost and quantify risk of offshore operations. Our specialist
engineering skills and broad experience complement the
capabilities of offshore contractors, enabling fully
engineered solutions to be prepared within fast-track
project schedules.
We provide a range of installation engineering solutions
for pipelay, trenching/burial, T&I, survey and rock
dump contractors, including:
• Full rigid and flexible pipelay analysis (reeling,
S-lay, J-lay, bundle tow, shore pulls)
• Riser installation and J-tube pull-in
• Vessel mooring and station keeping
• Trenching and ploughability analysis
• Installation of Subsea structures and spools
• Installation of fixed structures (including
float-over analysis)
Project Highlights
Conoco Mimas &
Tethys Pipelay Installation
Detailed simulation of pipelay operations using S-lay
with floating stinger (start-up, normal lay, A&R),
including rigorous analysis of vessel motions and wave-current
effects. ECA to determine AUT defect size limits. Detailed
design of pipe stacking and sea fastening arrangements.
Specification and supervision of lay barge mooring analysis.
Detailed FEA of stinger hitch arrangement, and design
of strengthening modifications.
Saudi Aramco Duba
Offloading Platform Float-Over
Concept and detailed design of unique “skid and
float-over” installation of 1000t offloading platform
onto piles. Detailed design of all installation systems,
including barge strengthening, bespoke hydraulic skidding
system and extended tilt beams. Sea-keeping, ballasting,
stability and longitudinal strength analysis of barge.
Design of adjustable pile installation guide frames
to accurately locate permanent piles. Preparation of
detailed drawings and procedures.
Talisman Tweedsmuir
Spools
Comprehensive installation engineering services to support
deployment of numerous spools in extensive North Sea
development. Lifting analysis and design of rigging;
deck layouts; sea-fastening design; ad-hoc support to
offshore operations.
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