1、 Guide for Building and Classing Subsea Riser Systems GUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS MAY 2006 (Updated February 2014 see next page) American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 Copyright 2006 American Bureau of Shipping ABS Plaza
2、16855 Northchase Drive Houston, TX 77060 USA Updates February 2014 consolidation includes: March 2008 version plus Corrigenda/Editorials March 2008 consolidation includes: November 2007 version plus Notice No. 2, Corrigenda/Editorials November 2007 consolidation includes: May 2007 version plus Notic
3、e No. 1 ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 iii Foreword Foreword Foreword This Guide applies to classification of design, construction and installation of risers for offshore and marine applications, as well as the periodic surveys required for maintenance of classificatio
4、n. Serviceability of risers is also addressed, but only to the extent that proper functioning of the pipe and its components affects safety. This Guide may also be used for certification or verification of design, construction or installation of risers. ABS will certify or verify design, constructio
5、n and installation of offshore risers when requested by the Owner or mandated by government regulations to verify compliance with this Guide, a set of specific requirements, national standards or other applicable industry standards. If ABS certification or verification is in accordance with this Gui
6、de and covers design, construction and installation, then the riser is also eligible for ABS classification. This Guide has been written for worldwide application, and as such, the satisfaction of individual requirements may require comprehensive data, analyses and plans to demonstrate adequacy. Thi
7、s especially applies for risers located in frontier areas, such as those characterized by relatively great water depth or areas with little or no previous operating experience. Conversely, many provisions of this Guide often can be satisfied merely on a comparative basis of local conditions or past
8、successful practices. ABS acknowledges that a wide latitude exists as to the extent and type of documentation which is required for submission to satisfy this Guide. It is not the intention of this Guide to impose requirements or practices in addition to those that have previously proven satisfactor
9、y in similar situations. Where available, design requirements in this Guide have been posed in terms of existing methodologies and their attendant safety factors, load factors or permissible stresses that are deemed to provide an adequate level of safety. Primarily, ABSs use of such methods and limi
10、ts in this Guide reflects what is considered to be the current state of practice in offshore riser design. At the same time, it is acknowledged that new materials and methods of design, construction and installation are constantly evolving. The application of this Guide by ABS will not seek to inhib
11、it the use of any technological approach that can be shown to produce an acceptable level of safety. This ABS Guide is effective 1 May 2006 and supersedes the edition published in May 2005. This edition adds an Appendix for the design, testing and installation of composite risers. Changes to Conditi
12、ons of Classification (1 January 2008) For the 2008 edition, Chapter 1, “Scope and Conditions of Classification” was consolidated into a generic booklet, entitled Rules for Conditions of Classification Offshore Units and Structures (Part 1) for all units, installations, vessels or systems in offshor
13、e service. The purpose of this consolidation was to emphasize the common applicability of the classification requirements in “Chapter 1” to ABS-classed offshore units, pipelines, risers, and other offshore structures, and thereby make “Conditions of Classification” more readily a common Rule of the
14、various ABS Rules and Guides, as appropriate. Thus, Chapter 1 of this Guide specifies only the unique requirements applicable to subsea riser systems. These supplemental requirements are always to be used with the aforementioned Rules for Conditions of Classification Offshore Units and Structures (P
15、art 1). iv ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 Table of Contents GUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS CONTENTS CHAPTER 1 Scope and Conditions of Classification (Supplement to the ABS Rules for Conditions of Classification Offshore Units and Structures) 1 Sec
16、tion 1 Applicability 3 Section 2 Classification Symbols and Notations 4 Section 3 Rules for Classification 5 Section 4 Documents to be Submitted 6 Section 5 Survey, Inspection and Testing . 11 Section 6 Definitions 17 See also separately published booklet ABS Rules for Conditions of Classification O
17、ffshore Units and Structures (Part 1) CHAPTER 2 General Design Criteria 18 Section 1 Design Requirements and Loads 22 Section 2 Environmental Effects 30 Section 3 Strength and Stability Criteria 37 Section 4 Installation, Construction and Testing 43 Section 5 Global Response Analysis and Riser Compo
18、nents Design 46 Section 6 Materials and Welding . 52 Section 7 Materials for Riser Components and Pipe Coating . 56 Section 8 Corrosion Control . 59 Section 9 Inspection, Maintenance and Repair . 61 Section 10 Extension of Use 64 CHAPTER 3 Special Considerations . 66 Section 1 Design of Catenary Ris
19、ers . 69 Section 2 Special Considerations for Steel Catenary Risers . 77 Section 3 Special Considerations for Flexible Risers 83 Section 4 Special Considerations for Pipe-in-Pipe SCR 90 ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 v APPENDIX 1 Composite Risers . 92 Section 1 General
20、 94 Section 2 Design 96 Section 3 Qualification Tests . 101 Section 4 Manufacturing, Installation and Testing . 106 APPENDIX 2 References by Organization 110 This Page Intentionally Left Blank ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 1 Chapter 1: Scope and Conditions of Classifi
21、cation (Supplement to the ABS Rules for Conditions of Classification Offshore Units and Structures) CHAPTER 1 Scope and Conditions of Classification (Supplement to the ABS Rules for Conditions of Classification Offshore Units and Structures) CONTENTS SECTION 1 Applicability 3 1 Classification . 3 SE
22、CTION 2 Classification Symbols and Notations . 4 1 Risers Built under Survey . 4 3 Risers not Built under Survey . 4 5 Classification Data 4 SECTION 3 Rules for Classification . 5 1 Application 5 SECTION 4 Documents to be Submitted 6 1 General . 6 3 Plans and Specifications . 6 5 Information Memoran
23、dum . 6 7 Site-specific Conditions . 7 9 Material Specifications 7 11 Design Data and Calculations 7 11.1 Structural Strength and On-bottom Stability Analysis 7 11.3 Installation Analysis . 8 11.5 In-place Static and Dynamic Analysis Report 8 11.7 VIV Analysis Report 8 11.9 Fatigue Analysis Report 8
24、 11.11 Safety Devices 8 13 Installation Manual 9 15 Pressure Test Report 10 17 Operations Manual 10 19 Maintenance Manual . 10 21 As-built Documents . 10 2 ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 SECTION 5 Survey, Inspection and Testing 11 1 General . 11 1.1 Scope 11 1.3 Qualit
25、y Control and Assurance Program . 11 1.5 Access and Notification . 12 1.7 Identification of Materials . 12 3 Inspection and Testing in Fabrication Phase 12 3.1 Material Quality 12 3.3 Manufacturing Procedure Specification and Qualification 12 3.5 Welder Qualification and Records . 12 3.7 Pre-Welding
26、 Inspection 12 3.9 Welding Procedure Specifications and Qualifications 13 3.11 Weld Inspection . 13 3.13 Tolerances and Alignments . 13 3.15 Corrosion Control Systems 13 3.17 Nondestructive Testing 14 3.19 Fabrication Records . 14 5 Inspection and Testing during Installation 14 5.1 Specifications an
27、d Drawings for Installation 15 5.3 Installation Manual . 15 5.5 Inspection and Survey During Installation 15 5.7 Final Inspection and Pressure Testing . 15 5.9 Inspection for Special Cases . 15 5.11 Notification . 15 7 In-service Inspection and Survey 15 9 Inspection for Extension of Use 16 SECTION
28、6 Definitions . 17 1 Classification . 17 3 Constructor or Contractor . 17 5 Extension of Use . 17 7 Maximum Allowable Operating Pressure 17 9 Offshore 17 11 Operator 17 13 Owner 17 15 Recurrence Period or Return Period 17 17 Riser 17 ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 3 Se
29、ction 1: Applicability CHAPTER 1 Scope and Conditions of Classification SECTION 1 Applicability (1 January 2008) This Guide is intended to serve as technical documentation for design, fabrication, installation and maintenance of offshore production and export risers made of metallic materials. The p
30、rincipal objectives are to specify the minimum requirements for classing, continuance of classing, certification and verification by ABS. In addition to the requirements of this Guide, the design of a marine system requires consideration of all relevant factors related to its functional requirements
31、 and long-term integrity, such as: Compliance with local Laws, Acts and Regulations Functional requirements Physical site information Operational requirements 1 Classification (1 January 2008) The requirements for conditions of classification are contained in the separate, generic ABS Rules for Cond
32、itions of Classification Offshore Units and Structures (Part 1). Additional requirements specific to subsea riser systems are contained in the following Sections. 4 ABSGUIDE FOR SURVEYS USING RISK-BASED INSPECTION FOR THE OFFSHORE INDUSTRY .2003 Section 2: Classification Symbols and Notations CHAPTE
33、R 1 Scope and Conditions of Classification SECTION 2 Classification Symbols and Notations (1 January 2008) A listing of Classification Symbols and Notations available to the Owners of vessels, offshore drilling and production units and other marine structures and systems, “List of ABS Notations and
34、Symbols” is available from the ABS website “http:/www.eagle.org”. The following notations are specific to subsea riser systems. 1 Risers Built under Survey Risers which have been built, installed, tested and commissioned to the satisfaction of the ABS Surveyors to the full requirements of this Guide
35、 or to its equivalent, where approved by the Committee, will be classed and distinguished in the Record by: null A1 Offshore Installation Offshore Risers 3 Risers not Built under Survey Risers which have not been built, installed, tested and commissioned under ABS survey, but which are submitted for
36、 classification, will be subjected to a special classification survey. Where found satisfactory, and thereafter approved by the Committee, they will be classed and distinguished in the Record in the manner as described in 1-2/1, but the mark null signifying survey during construction will be omitted
37、. 5 Classification Data Data on a riser will be published in the Record as to the latitude and longitude of its location, type, dimensions and depth of water at the site. ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 5 Section 3: Rules for Classification CHAPTER 1 Scope and Condition
38、s of Classification SECTION 3 Rules for Classification (1 January 2008) 1 Application These requirements are applicable to those features that are permanent in nature and can be verified by plan review, calculation, physical survey or other appropriate means. Any statement in the Guide regarding oth
39、er features is to be considered as guidance to the designer, builder, owner, et al. 6 ABSGUIDE FOR SURVEYS USING RISK-BASED INSPECTION FOR THE OFFSHORE INDUSTRY .2003 Section 4: Documents to be Submitted CHAPTER 1 Scope and Conditions of Classification SECTION 4 Documents to be Submitted 1 General F
40、or classing risers according to this Guide, the documentation that is to be submitted to ABS is to include reports, calculations, drawings and other documentation necessary to demonstrate the adequacy of the design of the risers. Specifically, required documentation is to include the items listed in
41、 this Chapter. 3 Plans and Specifications Plans and specifications depicting or describing the arrangements and details of the major items of risers are to be submitted for review or approval in a timely manner. These include: Site plan indicating bathymetric features at the proposed site, the locat
42、ion of obstructions to be removed, the location of permanent man-made structures and other important features related to the characteristics of the sea floor Structural plans and specifications for risers, their supports and coating Schedules of nondestructive testing and quality control procedures
43、Flow diagram indicating temperature and pressure profiles Specifications and plans for instrumentation and control systems and safety devices When requested by the Owner, the Owner and ABS may jointly establish a schedule for information submittal and plan approval. This schedule, to which ABS will
44、adhere as far as reasonably possible, is to reflect the fabrication and construction schedule and the complexity of the riser systems as they affect the time required for review of the submitted data. 5 Information Memorandum An information memorandum on risers is to be prepared and submitted to ABS
45、. ABS will review the contents of the memorandum to establish consistency with other data submitted for the purpose of obtaining classification or certification. An information memorandum is to contain the following: A site plan indicating the general features at the site, and the field location of
46、the risers Environmental design criteria, including the recurrence interval used to assess environmental phenomena Plans showing the general arrangement of the risers Description of the safety and protective systems provided Listing of governmental authorities having authority over the risers Brief
47、description of any monitoring proposed for use on the risers Description of manufacturing, transportation and installation procedures Chapter 1 Scope and Condition of Classification Section 4 Documents to be Submitted 1-4 ABSGUIDE FOR BUILDING AND CLASSING SUBSEA RISER SYSTEMS .2006 7 7 Site-specifi
48、c Conditions An environmental condition report is to be submitted, describing anticipated environmental conditions during pipe laying, as well as environmental conditions associated with normal operating conditions and design environmental condition. Items to be assessed are to include, as appropria
49、te, wind, waves, current, temperature, tide, marine growth, chemical components of air and water, ice conditions, earthquakes and other pertinent phenomena. A route investigation report is to be submitted, addressing with respect to the proposed route of the riser system, the topics of seafloor topography and geotechnical properties. In the bathymetric survey, the width of the survey along the proposed riser route is to be based on consideration of the expected variation in the final route in comparison with its planned position, a
