DNV-OS-F101: Submarine Pipeline Systems

1 OFFSHORE STANDARDDET NORSKE VERITAS ASThe electronic pdf version of this document found through is the officially binding versionDNV-OS-F101 Submarine Pipeline SystemsAUGUST 2012 Det Norske Veritas AS August 2012 Any comments may be sent by e-mail to service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believed to reflect the best ofcontemporary technology. The use of this document by others than DNV is at the user's sole risk. DNV does not accept any liability or responsibility for loss or damages resulting fromany use of this NORSKE VERITAS (DNV) is an autonomous and independent foundation with the objectives of safeguarding life,property and the environment, at sea and onshore.

2 DNV undertakes classification, certification, and other verification andconsultancy services relating to quality of ships, offshore units and installations, and onshore industries worldwide, andcarries out research in relation to these service documents consist of among others the following types of documents: Service Specifications. Procedural requirements. Standards. Technical requirements. Recommended Practices. Standards and Recommended Practices are offered within the following areas:A) Qualification, Quality and Safety MethodologyB) Materials TechnologyC) StructuresD) SystemsE) Special FacilitiesF) Pipelines and RisersG) Asset OperationH) Marine OperationsJ) Cleaner EnergyO) Subsea SystemsDET NORSKE VERITAS AS Offshore Standard DNV-OS-F101, August 2012 Changes Page 3 CHANGESG eneralThis document supersedes DNV-OS-F101, October affected by the main changes in this edition is highlighted in red colour.

3 However, if the changes involvea whole chapter, section or sub-section, normally only the title will be in red Changes General Minor editorial changes and updates B: reference list updated Introduction included. Previous A600 moved to B100 C: Updated definitions. Safety Philosophy Minor editorial changes and updates Clarification of acceptance target values B: The general requirements to a systematic review, B300, has been further implemented as a new A300in sections 3 to 11 C201: CO2 pipelines commented, recommended deviation from ISO. Concept and Design Premise Development Re-organised in a timeline manner Minor editorial changes and updates D200: Pressure protection system (including pressure safety system and pressure control system) has beenrenamed as Pipeline control and Pipeline safety system in line with IEC 61511.

4 Design Loads Minor editorial changes and updates C600: Weather restricted weather operations aligned with DNV-OS-H101. Design Limit State Criteria Minor editorial changes and updates D200: Pressure containment limit stated; influence of mill test and system test clarified D1300: Dent added as limit state (moved from trawling) E: Special considerations; levels of details are aligned between the different sub-sections E800: Requirements to earth quake extended F: Component design updated reflecting revisions of ISO and further aligned with section 8 F100: Advice for code breaks included. Design Materials Engineering Minor editorial changes and updates. Construction Linepipe Updated to reflect new ISO 3183 revision General update based on feed-back from industry G200: Criteria to dimensional tolerances clarified.

5 Construction - Components and Pipeline Assemblies Re-structured to improve clarity B300 to 500: Updated to reflect new ISO 15590 revision C500: Section on bolts updated F: Section on Pipeline assemblies partly re-written. Construction Corrosion protection and Weight Coating Re-written to align with ISO 21809 Construction - Offshore Section heading changed to reflect contents Completely re-structured and modified. DET NORSKE VERITAS AS Offshore Standard DNV-OS-F101, August 2012 Changes Page 4 Operations and Abandonment Updated to reflect alignment with DNV-RP-F116. Documentation Minor changes Fracture Limit State of Girth Welds B107: Rules for how different load cases shall be combined have been included D: Fracture toughness testing on SENT specimens also acceptable for bi-axial stress condition (operation) D: New definition of Lr cut-off (plastic collapse) which will allow higher local stresses and strains in theligament with a flaw E: Use of FE analysis amended F: No safety factor on the calculated fatigue life.

6 Mechanical Testing and Corrosion Testing General update based on feed-back from industry and clarifications. Welding General update based on feed-back from industry More precise definitions added to make several of the requirements clearer C300 and F300: Changes to requirement of weld filler metal yield strength. Non-Destructive Testing (NDT) Referenced standards updated. Withdrawn referenced standards replaced with new standards Aligned requirements for MT and PT with other international accepted standards B200: References for computed radiography implemented B300: References to DNV Classification Note 7 implemented. Automated Ultrasonic Girth Weld Testing General update based on feed-back from industry and clarifications DNV-RP-F118 implemented as reference for qualification of AUT Systems Requirements in DNV-OS-F101 is aligned with requirements in DNV-RP-F118.

7 Requirements for Shore Approach and Onshore Sections Minor present revision of DNV-OS-F101 is mainly reflecting feed-back from experience by several companiesthat are hereby acknowledged. This revision includes a re-structuring of Section 10 Offshore construction based on close valuablediscussions from Statoil, hereby hearing version was issued December 2011. Close to 1000 very well founded comments were received ofwhich most were either accepted or partly accepted. Many of the comments not accepted were typicallyrequesting extension of the scope, parameter limitations, requiring further developments. Those commentshave been noted as leads and may results in future Joint Industry proposals. The comments improved the quality and content of this standard significantly and the effort spent by thecommenting companies is impressive and hereby acknowledged.

8 The commenting companies were (inalphabetical order):AG der Dillinger HuttenwerkeJDPS aipemAllseasJFE-steelStatoilBPM rskSubsea 7 Chevron ETCN ippon SteelTata SteelEuropipeNordstreamTechnipExxonMobil PetrobrasTotalHeerema Marine ContractorsReinertsenWoodsideDET NORSKE VERITAS AS Offshore Standard DNV-OS-F101, August 2012 Contents Page 5 CONTENTSSec. 1 General .. 17A. General .. 17A 17A 200 Objectives .. 17A 300 Scope and application .. 17A 400 Alternative methods and 18A 500 Structure of standard .. 18B. References .. 19B 100 Applicability .. 19B 200 Offshore service specifications .. 20B 300 Offshore standards .. 20B 400 Recommended practices .. 20B 500 Rules .. 21B 600 Certification notes and classification 21B 700 Other references .. 21C. 25C 100 Verbal forms.

9 25C 200 Definitions .. 25C 300 Definitions (continued) .. 29D. Abbreviations and Symbols .. 33D 100 Abbreviations .. 33D 200 Symbols latin characters .. 35D 300 Symbols greek characters .. 37D 400 Subscripts .. 38 Sec. 2 Safety Philosophy .. 39A. General .. 39A 100 Objective .. 39A 39B. Safety Philosophy Structure .. 39B 100 General .. 39B 200 Safety 39B 300 Systematic review of risks .. 40B 400 Design criteria principles .. 41B 500 Quality assurance .. 41B 600 Health, safety and environment .. 41C. Risk Basis for 41C 100 General .. 41C 200 Categorisation of 41C 300 Location classes .. 42C 400 Safety classes .. 42C 500 Reliability 43 Sec. 3 Concept and Design Premise Development .. 44A. General .. 44A 100 Objective .. 44A 44A 300 Systematic review.

10 44B. Concept 44B 100 Concept development .. 44C. Design Premise .. 45C 100 Hydraulic analyses and flow assurance .. 45C 200 Environmental 46C 300 Collection of environmental 46C 400 Environmental data .. 46C 500 Pipeline route .. 46C 600 Route survey .. 47C 700 Seabed properties .. 48D. System Design 49D 100 System integrity .. 49D 200 Pipeline control and safety 49 DET NORSKE VERITAS AS Offshore Standard DNV-OS-F101, August 2012 Contents Page 6D 300 External corrosion 51D 400 Internal construction 51D 500 Internal corrosion 51 Sec. 4 Design - 52A. General .. 52A 100 Objective .. 52A 52A 300 Systematic review .. 52A 400 Load scenarios .. 52A 500 Categorisation of loads .. 52A 600 Design load 52B. Functional 52B 100 General.