The document discusses reducing the height of an EDP/LRP stack on the Snorre B workover system. The original height requirement was 9400mm but through design changes, the height was reduced by 226mm to 9348.35mm, clearing the requirement by 49mm. This height reduction earned a 900,000 British pound bonus, or 11.3 million Norwegian krone, equal to 1 million krone for every 20mm saved. Meeting the reduced height was crucial to avoid contract cancellation penalties within the 30-day design freeze period. Defining and freezing requirements early leads to successful on-time and on-budget project execution.

1. SNORRE B WORKOVER SYSTEM
CELEBRATING SUCCESS – 900K BONUS FOR
HEIGHT REDUCTION OF EDP/LRP STACK
Picture: Kjetil Alsvik - Statoil ASA

2. Moonpool on SNB
Height requirement
9400mm
Skid
XT
EDP
LRP
Adapter
XT
(incl Swallow 451mm)
3608 mm
Adapter
1391mm
LRP + EDP
4300,35
Height ≤ 9348,35
Clearance
(XT to LRP)
49mm
HeightRequirement
9400mm
5cm difference between height limitation and
max committed height
Crucial to
reduce
height !
EDP / LRP - Challenges

3. WAS Scotland MPRDate 2
EDP/LRP Stack
Bottom of LRP flange to
Top of EDP Speed loc
Actual (Feb 16) – 4074 mm
Total Saving - 226 mm
1 M NOK per 20 mm
11.3 M NOK = £900k
Contract Height – 4.3 M
30 days to Design Freeze
from CA
Penalty for not meeting
contract height within 30
days was contract
cancellation.
Incentive for reducing
height was 1 MNOK for
every 20 mm saved.
3-d Model (Jan 14) – 4073mm

4. WAS Scotland MPRDate 3
EDP/LRP Stack on VXT Adapter
Bottom of VXT Adapter
skid flange to top of
EDP Speed loc
Actual Height - Feb 16
(5762 mm)
Lessons Learned
Defining and freezing
the requirements early
in a project leads to
successful project
execution on time and
within budget.