Download - FPSO Requirements
FPSO’s & DNV
EOCBR 514 – Newbuildings and Conversions Marcelo Spotorno Rio de Janeiro, 16.07.2009
© Det Norske Veritas AS. All rights reserved Slide 2 28 September 2011
More than 140 years of managing risk
Det Norske Veritas (DNV) was established in 1864 in Norway
The main scope of work was to identify, assess and manage risk – initially for maritime insurance companies
© Det Norske Veritas AS. All rights reserved Slide 3 28 September 2011
300 offices in 100 countries
Head office Local offices
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Our people – a vital resource
People are the core of DNV 97 nationalities 9000 employees
© Det Norske Veritas AS. All rights reserved Slide 5 28 September 2011
FPSO – Market share
ABS35 %
DNV40 %
LR12 %
BV4 %
CCS1 %
Rina1 %
Vietnam1 %
Unknown6 %
Source:- Mobile Production systems of the World, 7th Edition, 2007/2008, Clarkson Research Services Limited- Floating Production Systems - assessment of the outlook for FPSO vessels, production semis, TLPs and Spars, November 2007, International Maritime Associates Inc.
© Det Norske Veritas AS. All rights reserved Slide 6 28 September 2011
Petrojarl I
the world’s first FPSO built for harsh environment(1986)
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First FPSO GoM
BW Yùum K’ak’Náab
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Chinook Cascade
First FPSO for US GoM
Cascade Chinook / First FPSO for US GoM
© Det Norske Veritas AS. All rights reserved Slide 9 28 September 2011
FPSOs/FSOs Newbuildings & Conversions
BP Skarv-Idun Korea-Samsumg Newbuilding
BW Pioneer - Cascade/Chinook Singapore Conversion
Nexus 01 Korea-Samsumg Newbuilding
Nexus 02 Korea-Samsumg Newbuilding
P-58 - Baleia Azul Singapore Conversion
Sevan 300 No. 04 China-Hantong Newbuilding
Sevan 300 No. 05 China-Hantong Newbuilding
Ichtys FPSO - Newbuilding
FSO Rita Dubai Conversion
Dynamic Producer Singapore Conversion
Knock Dee FSO Dubai Conversion
Deep Producer Singapore Conversion
© Det Norske Veritas AS. All rights reserved Slide 10 28 September 2011
”DNV classed units” around the world
North Sea:
FPSO: 18 Canada:
FPSO: 1
Gulf of Mexico:
FPSO: 2
Brazil:
FPSO: 3
West Africa:
FPSO: 12
North Africa:
FPSO: 2
Asia and Australia:
FPSO: 15
© Det Norske Veritas AS. All rights reserved Slide 11 28 September 2011
FPSO’s – DNV fleet in Brazil
SSP300 - Sevan Piranema
Petrojarl Cidade de Rio das Ostras
BW Cidade de São Vicente
© Det Norske Veritas AS. All rights reserved Slide 12 28 September 2011
DNV Offshore Standards
© Det Norske Veritas AS. All rights reserved Slide 13 28 September 2011
Benign Waters
DNV OS-C-102 - Structural Design of Offshore Ships - World-wide operation - Benign waters - Environments at which the required to hull girder capacity
calculated according to the LRFD method is less than the minimum section modulus according to the ‘Main Class Requirements’.
© Det Norske Veritas AS. All rights reserved Slide 14 28 September 2011
Benign Waters
Alternative design procedures - Alternative 1 - Ship Rules - The hull scantlings are based on the “main class
requirements”.No direct calculations of wave bending moments and shear forces are required.
- Alternative 2 - LRFD method - The hull is designed according to the principles given in Ch.1. The midship section modulus may be less than the ”main class requirements”. When design Alternative 2, LRFD method, is applied, the minimum midship section modulus according to the ”main class requirements” may be reduced by maximum 25%.
© Det Norske Veritas AS. All rights reserved Slide 15 28 September 2011
P-58 - Nauticus Construction
Default
Innerstructure
Outershell
Thickness map
Material map
© Det Norske Veritas AS. All rights reserved Slide 16 28 September 2011
You get an over-view from colour display and printed numbers.
Gives you access to the dimensions and steel grades of plates, stiffeners and girders
By clicking the structural parts you get more details
Information – dimensions and steel grades
© Det Norske Veritas AS. All rights reserved Slide 17 28 September 2011
Maintenance – Steel renewal / weight
Marking up all plates and/or stiffeners within a 3D zone by defining and extruding a polygon
Plates and stiffeners can be marked up independently by using separate zones
© Det Norske Veritas AS. All rights reserved Slide 18 28 September 2011
Maintenance – Coating Area Calculations
Marking up all structures for complete or part of the compartment
Marking up single structures for partial coating: top, one side (gray on aft side means not coated)
© Det Norske Veritas AS. All rights reserved Slide 19 28 September 2011
Maintenance – Docking specifications
Planning and cost control prior/during a docking of a vessel.
Specification or for verification purposes of the figures given by the ship repair yard.
© Det Norske Veritas AS. All rights reserved Slide 20 28 September 2011
Maintenance – Emergency Repairs
Facilitates the documentation of damage:
- Location - Extent - Type of structure
No need for long and complex descriptions.
Enables overview and control the expenses.
© Det Norske Veritas AS. All rights reserved Slide 21 28 September 2011
The Nauticus Coating Monitoring Tool takes advantage of 3D technology to visualise the coating status and calculate re-coating areas. The tool also supports a structured recording of coating inspection results referring to pre-defined cells/bays of the ballast tanks. Finally, it assists you in preparing the re-coating specification and estimates the costs.
When tool is used one has stop to take a risk of unpredicted situations in respect to mintenance or failure.
Monitoring - Coating Monitoring Tool
© Det Norske Veritas AS. All rights reserved Slide 22 28 September 2011
Thickness measurement support
The Nauticus UTM Tool improves planning, execution and evaluation of ultrasonic thickness measurements.
Monitoring – UTM
This improves UTM process: shorter time, improved quality and communication, input to maintenance strategy: better control and lower cost
© Det Norske Veritas AS. All rights reserved Slide 23 28 September 2011
0%
5%
10%
15%
20%
25%
1983 1988 1993 1998 2003 2008 2013
Years
Thic
knes
s D
imin
utio
n t dim
t sub
t min
Set of UTM readings from previous years
Trend Curve
The curve shows tendency of steel diminution within the years and can be used for prognosis
Management – Maintenance Strategy
Coating Condition Status
© Det Norske Veritas AS. All rights reserved Slide 24 28 September 2011
Training – Naming of Structure
© Det Norske Veritas AS. All rights reserved Slide 25 28 September 2011
Inspection of lower hopper knuckle especially in way of trv. web frames
Inspection of upper hopper knuckle especially in way of trv. web frames
“Risk Based Inspection” with Focus on ”Critical Areas”
Training – Areas of Attention
© Det Norske Veritas AS. All rights reserved Slide 26 28 September 2011