DNVs Rolle Regler
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Transcript of DNVs Rolle Regler
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Slide 1
DNVOFFSHORECLASSIFICATIONSERVICES
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Classification
Classification is a system for safeguarding life, property and the environment due to operational consequences Classification implies a process of verifying
objects and systems against a set of requirements For Mobile Offshore Units, DNV Rules and
Standards apply Classification aims to verify that the required Rule
standard is built in, observed and maintained throughout the units life - Lifetime Approach
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DNV- A leading classification society:
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Close to 17% of the world fleet to class
21% of ships ordered in 2004
70% of maritime fuel testing
Cutting edge use of ICT
Acknowledged with Best Quality
Lowest Port Detention Rate
Authorised by 130 National Maritime Authorities
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Why Offshore Classification ?
Basis for registration in national register and flag required by IMO for international voyage Represents internationally accepted safety standard Known and recognised by the maritime industry Normal requirement for insurance
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Underwrites wanted assurances
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Why Offshore Classification ?
Represents independent/third party assessment of the classed unit Global network provides survey capability where
needed Knowledge of and experience with local
regulations
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- Lifetime ApproachClassification
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Work processes- what happens?
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DNVstations
DNV ServiceCentres
Yard Owners
PMF
PMA
VendorsCMC surveyors
Specialist sections
Field surveyors
OCT HvikDesign Documents
Approved docs
Interim Certificates
documents
DVRs
certificatescertificates
DFI
IIP
Renewed ClassCertificate
Data Base
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Role of Classification
Classification has gained world wide recognition as an adequate level of safety and quality, i.e. provides a sound basic safety standard
Classification serves as a verification system for a number of parties who have special interest in the safety and quality of offshore units, such as: National Authorities/Flag states Insurance underwriters Owners Building yards and sub-contractors Finance institutions Charterers
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DNV Offshore Class:Hierarchy of Classification Certificates
SystemAPPROVAL
MaterialCERTIFICATES
CLASSCERTIFICATE
ComponentCERTIFICATES
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has classified the
Floating Production, Storage and Offloading Unit and that it is built in accordance with the
Societies Rules forOffshore Units, April 2004
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is herb certified that Det Norske Veritas has reviews the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviews the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviews the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is herby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviews the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
DET NORSKE VERITAS
It is hereby certified that Det Norske Veritas has reviewed the NAM F3Concrete Gravity BasePlatform and that it is built in accordance with the SocietiesRules for Fixed OffshoreInstallations, July 1992
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DNV Offshore Codes Technical Basis for Classification
Service Specifications
Offshore Standards
RecommendedPractices
Design Construction Operation
Internationally recognised codes
A three level publication hierarchy providing a flexible and user-friendly menu of services, technical standards and practices meeting individual needs of oil and gas industry stakeholders.
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Service Specifications - Classification
Classification (OSS-100 series)
DNV-OSS-101: Rules for Classification of Offshore Drilling and Support Units
DNV-OSS-102: Rules for Classification of Floating Production and Storage Units
DNV-OSS-103: Rules for Classification of LNG/LPG Floating Production and Storage Units or Installations
DNV-OSS-121: Classification using Performance Criteria determined By Risk Assessment Methodology
OFFSHORE SERVICE SPECIFICATION
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Offshore Standards - Structures
DNV-OS-C101: Design of Offshore Structures, General (LRFD method)
DNV-OS-C102: Structural Design of Offshore Ships DNV-OS-C103: Structural Design Column-stabilised
Units (LRFD method) DNV-OS-C104: Structural Design of Self-elevating Units
(LRFD method) DNV-OS-C105: Structural Design of Tension-leg Units
(LRFD method) DNV-OS-C106: Structural Design of Deep-draught Units
(LRFD method) DNV-OS-C201: Structural Design of Offshore Units
(WSD Method)
OFFSHORE STANDARD
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Pipeline:OS-F101RP-F101RP-F104RP-F105RP-F106RP-F107RP-F108
Risers:OS-F201RP-F201RP-F202
Wellheads:OS-E101
Mooring:OS-E301
SEMI-SUBSafety:
OS-A101Materials:OS-B101
Hull:OS-C101OS-C103RP-C103OS-C-401Stability:OS-C301
Marine/Machinery:OS-D101
Electrical:OS-D201
Instrumentation:OS-D202
Fire Safety:OS-D301
Production Plant:OS-E201Drill Plant:
OS-E101
Helideck:OS-E401
FPSOSafety:
OS-A101Materials:OS-B101
Hull:OS-C101OS-C102RP-C102OS-C-401Stability:OS-C301
Marine/Machinery:OS-D101
Electrical:OS-D201
Instrumentation:OS-D202
Fire Safety:OS-D301
FSOSafety:
OS-A101Materials:OS-B101
Hull:OS-C101OS-C102RP-C102OS-C-401Stability:OS-C301
Marine/Machinery:OS-D101
Electrical:OS-D201
Instrumentation:OS-D202
Fire Safety:OS-D301
Anchors:RP-E301RP-E302
Chain:OS-E302
Wire rope:OS-E303
DNV Offshore Codes - Global standards, practices and related services covering many areas and aspects of offshore field development and operation
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DNV Offshore Codes - availability
DNV Publications electronically available on internet www.dnv.com
Select Technology Services and Offshore Rules and Standards online from short-cut menues
from DNV Exchange (left hand menu)
Changes summarized on 1st page of new editions
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DNV Offshore Class: Class Notations
Scope of classification is determined by mandatory and additional class notations, e.g.
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1A1
Ship-shaped Oil Production and Storage Unit(N)
POSMOOR, ECO, CRANE, HELDK-SH, PROD(N)Specialsystem and equipmentnotations
Basic Design and
Service notations
Main character of
class
Constructionsymbol
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Items under consideration for next revision of OSS-101:New MOU Class Notation CLEAN
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Voluntary environmental class CLEAN, covering: Mud green fluid unless special systems Hydraulic ring mains Anchoring systems wrt hydraulic leaks & heavy grease Food Drilling system discharges / haz drains Grey & black water Riser & drill pipe deck draining MARPOL Annex I, IV, V, VI (oil, sewage, garbage, air) Deck drains Machinery over the sides, e.g. cranes Biocides / water treatment
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Items under consideration for next revision of OSS-101/102 :
New MOU Class Notation ARCTIC
Voluntary Class Notation ARCTIC, covering: Design temperature (steel and equipment) Stability (ice loads) Materials in structures exposed to low ambient air temperatures Local hull structures exposed to ice loads Rudders, steering gears, propellers Protection of outdoor areas Steam-generating equipment System & equipment suitability:
Life-saving Helideck Winches Fire fighting Cranes Etc.
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DNV Offshore Class: Relation Maritime Authorities vs. Class
National Laws and Regulations
CLASS RULES STATUTORYREGULATIONS
Statutory Services based on delegated
authority
Control by Class Control byAuthorities
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DNV Offshore Class:Extensive statutory experience
Authorised by more than 130 flag administrations to carry out surveys and, in most cases, issue statutory certificates on their behalf such as
SOLAS Certificates IMO MODU Code certificate Load line certificates Tonnage Certificates Safety Management Certificates Oil Pollution Prevention Certificates ILO Certificates ISSC
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Owner, OperatorOwner, Operator
DNV-Class
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Flag, Shelf, other
DNV Offshore Class:Verification of Additional Requirements based on Class
Work ScopeWork Scope
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DNV Offshore Class:Tailor-made in-service inspection programs (IIP)
IIP for hull structures of MOUs, highlighting Areas and details to be surveyed by visual and close visual inspection as well as NDT Frequency of the various types of inspection Relevant data from previous surveys Experience from similar structures
Based on design calculations and relevant information from fabrication phase.
In addition, qualitative consequence considerations in relation to possible failure modes are applied for determination of extent and frequency of inspection.
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DNV Offshore Class:Systematic collection and handling of experiences
Reported damages such as cracks, serious corrosion, indentations etc. logged in central damage data base currently holds more than 4000 entries.
Data balanced against other sources of information and are used for: Trend analysis Highlighting of typical defects Initiation of safety alerts and corrective actions Modification of survey frequency and extent as defined in the In-
service Inspection program Improvement of classification rules
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Classification/verification PETROBRAS P-51/52- a global effort
Classification Services according to notation ? 1A1 Column-stabilised Oil Production Unit PROD POSMOOR:
Design ReviewFabrication Survey - 6 sites (Singapore & Brazil)Certification of Material & Components
Certification of Generation Modules
Certification of Compression Modules
P-52 Pontoons in KFE
ClassificationDNV- A leading classification society:Why Offshore Classification ?Underwrites wanted assurancesWhy Offshore Classification ?Work processes- what happens?Role of ClassificationDNV Offshore Codes Technical Basis for ClassificationService Specifications - ClassificationOffshore Standards - StructuresDNV Offshore Codes - availabilityDNV Offshore Class: Class NotationsItems under consideration for next revision of OSS-101:New MOU Class Notation CLEANItems under consideration for next revision of OSS-101/102 : New MOU Class Notation ARCTICDNV Offshore Class: Relation Maritime Authorities vs. ClassDNV Offshore Class: Extensive statutory experienceDNV Offshore Class:Tailor-made in-service inspection programs (IIP)DNV Offshore Class:Systematic collection and handling of experiencesClassification/verification PETROBRAS P-51/52- a global effort