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Slide 1 DNV OFFSHORE CLASSIFICATION SERVICES

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  • Slide 1

    DNVOFFSHORECLASSIFICATIONSERVICES

  • Slide 2

    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

  • DNV- A leading classification society:

    Slide 3

    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

  • Slide 4

    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

  • Slide 5

    Underwrites wanted assurances

  • Slide 6

    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

  • Slide 7

    - Lifetime ApproachClassification

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  • Work processes- what happens?

    Slide 8

    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

  • Slide 9

    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

  • Slide 10

    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

  • Slide 11

    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.

  • Slide 12

    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

  • Slide 13

    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

  • Slide 14

    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

  • Slide 15

    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

  • Slide 16

    DNV Offshore Class: Class Notations

    Scope of classification is determined by mandatory and additional class notations, e.g.

    ?

    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

  • Items under consideration for next revision of OSS-101:New MOU Class Notation CLEAN

    Slide 17

    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

  • Slide 18

    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.

  • Slide 19

    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

  • Slide 20

    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

  • Slide 21

    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

  • Slide 22

    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.

  • Slide 23

    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

  • Slide 24

    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