DNV-OS-F101: Submarine Pipeline Systems - OPIMsoft
OFFSHORE STANDARDDNV-OS-F101Submarine Pipeline SystemsAUGUST 2012The electronic pdf version of this document found through http://www.dnv.com is the officially binding versionDET NORSKE VERITAS AS
FOREWORDDET NORSKE VERITAS (DNV) is an autonomous and independent foundation with the objectives of safeguarding life,property and the environment, at sea and onshore. 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 functions.DNV service documents consist of among others the following types of documents:— Service Specifications. Procedural requirements.— Standards. Technical requirements.— Recommended Practices. Guidance.The 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 Systems Det Norske Veritas AS August 2012Any comments may be sent by e-mail to rules@dnv.comThis 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 document.
Offshore Standard DNV-OS-F101, August 2012Changes – Page 3CHANGESGeneralThis document supersedes DNV-OS-F101, October 2010.Text affected by the main changes in this edition is highlighted in red colour. However, if the changes involvea whole chapter, section or sub-section, normally only the title will be in red colour.Main Changes ————Sec.1 GeneralMinor editorial changes and updatesB: Reference list updatedIntroduction included. Previous A600 moved to B100C: Updated definitions. ———Sec.2 Safety PhilosophyMinor editorial changes and updatesClarification of acceptance target valuesB: 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. ———Sec.3 Concept and Design Premise DevelopmentRe-organised in a timeline mannerMinor editorial changes and updatesD200: 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. Sec.4 Design – Loads— Minor editorial changes and updates— C600: Weather restricted weather operations aligned with DNV-OS-H101. ———————Sec.5 Design – Limit State CriteriaMinor editorial changes and updatesD200: Pressure containment limit stated; influence of mill test and system test clarifiedD1300: Dent added as limit state (moved from trawling)E: Special considerations; levels of details are aligned between the different sub-sectionsE800: Requirements to earth quake extendedF: Component design updated reflecting revisions of ISO and further aligned with section 8F100: Advice for code breaks included. Sec.6 Design – Materials Engineering— Minor editorial changes and updates. ———Sec.7 Construction – LinepipeUpdated to reflect new ISO 3183 revisionGeneral update based on feed-back from industryG200: Criteria to dimensional tolerances clarified. ————Sec.8 Construction - Components and Pipeline AssembliesRe-structured to improve clarityB300 to 500: Updated to reflect new ISO 15590 revisionC500: Section on bolts updatedF: Section on pipeline assemblies partly re-written. Sec.9 Construction – Corrosion protection and Weight Coating— Re-written to align with ISO 21809 Sec.10 Construction - Offshore— Section heading changed to reflect contents— Completely re-structured and modified.DET NORSKE VERITAS AS
Offshore Standard DNV-OS-F101, August 2012Changes – Page 4 Sec.11 Operations and Abandonment— Updated to reflect alignment with DNV-RP-F116. Sec.12 Documentation— Minor changes App.A 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. App.B Mechanical Testing and Corrosion Testing— General update based on feed-back from industry and clarifications. App.C 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. App.D Non-Destructive Testing (NDT)————Referenced standards updated. Withdrawn referenced standards replaced with new standardsAligned requirements for MT and PT with other international accepted standardsB200: References for computed radiography implementedB300: References to DNV Classification Note 7 implemented. App.E 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. App.F Requirements for Shore Approach and Onshore Sections— Minor changes.AcknowledgementThe 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 acknowledged.A 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, e.g. 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. The commenting companies were (inalphabetical order):AG der Dillinger HuttenwerkeAllseasBPChevron ETCEuropipeExxonMobilHeerema Marine ContractorsJDPJFE-steelMærskNippon SteelNordstreamPetrobrasReinertsenDET NORSKE VERITAS ASSaipemStatoilSubsea 7Tata SteelTechnipTotalWoodside
Offshore Standard DNV-OS-F101, August 2012Contents – Page 5CONTENTSSec. 1General . 17A.AAAAAGeneral . 17100 Introduction. 17200 Objectives . 17300 Scope and application . 17400 Alternative methods and procedures. 18500 Structure of standard . 18B.BBBBBBBReferences . 19100 Applicability . 19200 Offshore service specifications . 20300 Offshore standards . 20400 Recommended practices . 20500 Rules . 21600 Certification notes and classification notes. 21700 Other references . 21C.CCCDefinitions. 25100 Verbal forms . 25200 Definitions . 25300 Definitions (continued) . 29D.DDDDAbbreviations and Symbols . 33100 Abbreviations. 33200 Symbols – latin characters . 35300 Symbols – greek characters . 37400 Subscripts. 38Sec. 2Safety Philosophy . 39A. General . 39A 100 Objective . 39A 200 Application. 39B.BBBBBBSafety Philosophy Structure . 39100 General. 39200 Safety objective. 39300 Systematic review of risks . 40400 Design criteria principles . 41500 Quality assurance . 41600 Health, safety and environment . 41C.CCCCCRisk Basis for Design. 41100 General. 41200 Categorisation of fluids. 41300 Location classes . 42400 Safety classes . 42500 Reliability analysis. 43Sec. 3A.AAAConcept and Design Premise Development . 44General . 44100 Objective . 44200 Application. 44300 Systematic review . 44B. Concept Development. 44B 100 Concept development . 44C.CCCCCCCDesign Premise . 45100 Hydraulic analyses and flow assurance . 45200 Environmental condition. 46300 Collection of environmental data. 46400 Environmental data . 46500 Pipeline route . 46600 Route survey . 47700 Seabed properties . 48D. System Design Principles. 49D 100 System integrity . 49D 200 Pipeline control and safety system. 49DET NORSKE VERITAS AS
Offshore Standard DNV-OS-F101, August 2012Contents – Page 6D 300D 400D 500External corrosion control. 51Internal construction conditions. 51Internal corrosion control. 51Sec. 4Design - Loads. 52A.AAAAAAGeneral . 52100 Objective . 52200 Application. 52300 Systematic review . 52400 Load scenarios . 52500 Categorisation of loads . 52600 Design load effects. 52B. Functional Loads. 52B 100 General. 52B 200 Internal pressure loads . 53C.CCCCCCEnvironmental Loads . 54100 General. 54200 Wind loads . 54300 Hydrodynamic loads . 54400 Ice loads . 56500 Earthquake . 56600 Characteristic environmental load effects. 56D. Construction Loads . 58D 100 General. 58E. Interference Loads. 59E 100 General. 59F. Accidental Loads. 59F 100 General. 59G.GGGGDesign Load Effects. 59100 General. 59200 Characteristic load . 59300 Design load effect . 60400 Load effect calculations . 61Sec. 5Design – Limit State Criteria . 63A.AAAGeneral . 63100 Objective . 63200 Application. 63300 Systematic review . 63B.BBBSystem Design Requirements . 63100 Submarine pipeline system layout . 63200 Pressure test philosophy and criteria. 65300 Monitoring/inspection during operation . 66C.CCCCCDesign Format. 67100 General. 67200 Design resistance . 67300 Characteristic material properties . 68400 Characteristic wall thickness . 70500 Stress and strain calculations . 70D.DDDDDDDDDDDDDLimit States . 71100 General. 71200 Pressure containment (bursting) . 72300 Local buckling - general . 72400 Local Buckling – external over pressure only (system collapse) . 72500 Propagation buckling . 73600 Local buckling - combined loading criteria . 74700 Global buckling . 77800 Fatigue . 77900 Fracture, supplementary requirement P and F and HISC . 791000 Ultimate limit state – accidental loads . 801100 Ovalisation . 801200 Accumulated deformation. 811300 Dent. 81DET NORSKE VERITAS AS
Offshore Standard DNV-OS-F101, August 2012Contents – Page 7E.EEEEEEEEEESpecial Considerations . 81100 General. 81200 Pipe soil interaction . 81300 Global buckling. 82400 Free spanning pipelines and risers . 82500 On bottom stability . 82600 Trawling interference. 83700 Third party loads, dropped objects. 83800 Earth quakes. 84900 Thermal insulation . 841000 Settings from plugs . 84F.FFFFFFPipeline Components . 84100 General. 84200 Induction bends. 86300 Fittings . 87400 Valves . 87500 Insulating joints.
Offshore Standard DNV-OS-F101, August 2012 Changes – Page 3 CHANGES General This document supersedes DNV-OS-F101, October 2010. Text affected by the main changes in this edition is hi ghlighted in red colour. Howe ver, if the changes involve a whole chapter, section or sub-section, normally only the title will be in red colour. Main Changes
(DNV OS-F101) VIV & Wave Loads (RP-F105) Pressure Effects (DNV OS-F101) Axial Force (DNV OS-F101) Trawl interference (GL 13) Slide 7 2/9/2005 DNV RP-F105 Free Spanning Pipelines ; MANAGING RISK ; Calculation Tool Free span assessment complex Require detailed knowledge in several disciplines: .
Planning, Designing and Construction Fixed Offshore Platforms. Det Norske Veritas DNV, OC-F101, Rules for Submarine Pipeline Systems. (January 2000) DNV-RP-F107 Risk Assessment of Submarine Pipeline Protection (March 2001) DNV 30.4 Foundations (1995) British Standards Institution British Standard; BS8010 Part 3, 1993
Africa. DNV OS F101 [4] has mostly been used for deep-water projects in offshore Brazil and Europe. DNV OS F101 includes no limitations on water depth. However, when this standard is applied in deep water, for which experience is limited, special considerations must be made. The original collapse pressures listed in DNV OS F101 are only
as per Tab. 5-5 of DNV RP F101 m Material Resistance Factor as per Tab. 5-4 of DNV RP F101 According to DNV OS F101 Sect. 3 B305, the incidental over design pressure ratio, inc, can be set to 1.05, which is the minimum allowed ratio, provided that the requirements to
In 1996, DNV introduced the limit state design method. The new code was a complete revision of the DNV 1981. DNV 1996 adopted latest research achievements and practical experience gained through most challenging pipeline projects executed (Ref. 1). DNV 1996 code was subsequently & regularly updated and renamed DNV-OS-F101.
Figure 2 Table 2-5 of DNV-OS-F101 ( DNV 2007) Figure 3 Table 2-5 of DNV-OS-F101 ( DNV 2000, Reprint January 2003) 4.3 Hazardous Events It is necessary to determine the nature and the frequency of the hazardous events, and escalation sequences, which may damage the system with overpressure.
ISO 13623 [2], DNV-OS-F101 [3] and ASME B31.4 [4]. ISO 13623 DNV OS-F101 ASME B31.4 Recommended Practice Other Figure 1: Referenced standards 2.2. Applicability The recommendations given in the document applies to ri gid metallic pipelines, and pipeline networks, for fluids containi ng overwhelmingly 1 CO
In Abrasive Jet Machining (AJM), abrasive particles are made to impinge on the work material at a high velocity. The jet of abrasive particles is carried by carrier gas or air. The high velocity stream of abrasive is generated by converting the pressure energy of the carrier gas or air to its kinetic energy and hence high velocity jet. The nozzle directs the abrasive jet in a controlled manner .
