SNORRE B WORKOVER SYSTEM

CELEBRATING SUCCESS – 900K BONUS FOR HEIGHT REDUCTION OF EDP/LRP STACK

Picture: Kjetil Alsvik - Statoil ASA

Moonpool on SNB

Height requirement 9400mm

Skid

XT

EDP

LRP

Adapter

XT (incl Swallow 451mm)3608 mm

Adapter1391mm

LRP + EDP4300,35

Height ≤ 9348,35

Clearance(XT to LRP)49mmHe

ight

Req

uire

men

t 94

00m

m

5cm difference between height limitation and max committed height

Crucial to reduce height !

EDP / LRP - Challenges

WAS Scotland MPRDate 3

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

WAS Scotland MPRDate 4

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.