Specification for Subsea Umbilicals

Upstream Segment

ANSI/API SPECIFICATION 17E FOURTH EDITION, OCTOBER 2010

EFFECTIVE DATE: APRIL 1, 2011

ISO 13628-5:2009 (Identical), Petroleum and natural gas industries—Design and operation of subsea production systems—Part 5: Subsea umbilicals

Special Notes

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Copyright © 2010 American Petroleum Institute

API Foreword

Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.

Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the specification.

This document was produced under API standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleum Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.

Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.

Suggested revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standards@api.org.

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Contents Page

API Foreword iii

Foreword ix

Introduction x

1. Scope 1

2. Normative references 1

3. Terms, abbreviated terms and definitions 3

   1. Terms and definitions 3

   2. Abbreviated terms 9

4. Functional requirements 10

   1. General requirements 10

   2. Project-specific requirements 11

5. Safety, design and testing philosophy 11

   1. Application 11

   2. Safety objective 11

   3. Systematic review 11

   4. Fundamental requirements 12

   5. Design philosophy 12

   6. Testing 14

6. Design requirements 15

   1. General 15

   2. Loads 15

   3. Load effect analysis 19

   4. Installation analysis 25

   5. Fatigue life 26

7. Component design, manufacture and test 26

   1. General 26

   2. Electric cables 27

   3. Hoses 37

   4. Optical-fibre cable 48

   5. Metallic tubes 52

8. Terminations and ancillary equipment design 68

   1. Design principles 68

   2. Design process 69

   3. Armour terminations 69

   4. Tube and hose terminations 69

   5. Cable terminations 69

   6. Pull-in head 70

   7. Topside hang-off 71

   8. Subsea termination interface 71

   9. Subsea umbilical termination 71

   10. Bend restrictors 71

   11. Bend stiffeners 72

   12. Ancillary equipment 73

9. Umbilical design 75

   1. Temperature range 75

   2. Maximum tensile load 75

   3. Ultimate tensile load 75

   4. Minimum bend radius 75

   5. Cross-sectional arrangement 76

      v

   6. Lay-up 76

   7. Sub-bundles 76

   8. Inner sheath 76

   9. Armouring 77

   10. Outer sheath 77

   11. Length marking 77

10. Umbilical manufacture and test 78

    1. Umbilical manufacture 78

    2. Qualification and verification tests 80

11. Factory acceptance tests 81

    1. General 81

    2. Visual and dimensional inspection 81

    3. Electrical continuity at the termination 81

    4. Trial termination fit-up 81

    5. Electric cable 81

    6. Optical fibre cables 82

    7. Hoses 82

    8. Tubes 83

    9. Terminations 83

    10. Continuity check 83

12. Storage 83

    1. General 83

    2. Protection of unterminated umbilical components 83

    3. Spare length 84

    4. Repair kits 84

    5. Handling for integration tests 84

13. Pre-installation activity 84

    1. Umbilical information 84

    2. Route information 85

    3. Terminations and ancillary equipment information 85

    4. Host facility information 86

    5. Subsea structure information 86

    6. Host facility visit 86

14. Load-out 87

    1. General 87

    2. Technical audit of load-out facilities 87

    3. Load-out procedure 88

    4. Pre-load-out meetings 88

    5. Pre-load-out tests 88

    6. Load-out operation 89

    7. Stopping and starting the load-out 90

    8. Handling of the umbilical 90

    9. Load-out monitoring 91

    10. Load-out on a reel or carousel 91

    11. Post-load-out tests 92

15. Installation operations 92

    1. General 92

    2. Requirements for installation vessel and equipment 92

    3. Pre-installation survey 93

    4. I-tube or J-tube pull-in operations 94

    5. Lay-down of subsea termination (first end) 97

    6. Lay route 97

    7. Handling requirements for the main lay 97

    8. Vessel positioning to achieve required touch-down 98

    9. Control and monitoring of length laid 98

    10. Integrity monitoring during lay 99

    11. Burial operations 100

    12. Approach to subsea termination position (second end) 101

    13. Lay-down of subsea termination 101

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    14. Pull-in of subsea termination 102

    15. Pipeline crossings 102

    16. Buoyancy attachments 102

    17. Arming of the weak link 103

    18. Post-lay survey 103

    19. Post-burial survey 103

    20. Post-pull-in test 103

    21. Post-hook-up test 104

    22. Retrieval of installation aids 104

    23. Contingencies 104

    24. Repairs 105

    25. Post-installation survey 105

Annex A (informative) Information that should be provided in a purchaser's functional specification 106 Annex B (informative) Umbilical testing 113

Annex C (informative) Hose and tube preferred sizes 117

Annex D (normative) Characterization tests for hoses and umbilicals 118

Annex E (informative) Fatigue testing 122

Annex F (informative) Load-effect analysis 124

Annex G (informative) Umbilical full-scale tests 135

Annex H (informative) Tube material matrix 141

Annex I (informative) Tube-wall thickness example calculation 153

Annex J (informative) Buckling of metallic tubes 160

Annex K (informative) Use of the API Monogram Program by Licensees 163

Bibliography 166

vii

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 13628-5 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and production equipment.

This second edition cancels and replaces the first edition (ISO 13628-5:2002), which has been technically revised.

ISO 13628

pipe systems for subsea and marine applications consists of the following parts, under the general title Petroleum and natural gas industries — Design and operation of subsea production systems:

• Part 1: General requirements and recommendations

  
  

• Part 2: Unbonded flexible pipe systems for subsea and marine applications

  
  

• Part 3: Through flowline (TFL) systems

  
  

• Part 4: Subsea wellhead and tree equipment

  
  

• Part 5: Subsea umbilicals

  
  

• Part 6: Subsea production control systems

  
  

• Part 7: Completion/workover riser systems

  
  

• Part 8: Remotely Operated Vehicle (ROV) interfaces on subsea production systems

  
  

• Part 9: Remotely Operated Tool (ROT) intervention systems

  
  

• Part 10: Specification for bonded flexible pipe

  
  

• Part 11: Flexible

A Part 12, dealing with dynamic production risers, a Part 13, dealing with remotely operated tool and interfaces on subsea production systems, a Part 15, dealing with subsea structures and manifolds, a Part 16, dealing with specification for flexible pipe ancillary equipment, and a Part 17, dealing with recommended practice for flexible pipe ancillary equipment, are under development.

ix

Introduction

This part of ISO 13628 is based on the first edition of ISO 13628-5, which was based on API Spec 17E, second edition and API RP 17I, first edition. The first edition of ISO 13628-5 was adopted by API as API Spec 17E, third edition. It is intended that API Spec 17E, fourth edition, will be identical to this International Standard.

It is important that users of this part of ISO 13628 be aware that further or differing requirements can be needed for individual applications. This part of ISO 13628 is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment engineering solutions for the individual application. This can be particularly applicable if there is innovative or developing technology. If an alternative is offered, it is the responsibility of the vendor to identify any variations from this part of ISO 13628 and provide details.

In this part of ISO 13628, where practical, US Customary (USC) and other units are included in parentheses for information.

x

API Specification 17E/ISO 13628-5

Petroleum and natural gas industries — Design and operation of subsea production systems —

Part 5:

Subsea umbilicals

1. Scope

   
   

   This part of ISO 13628 specifies requirements and gives recommendations for the design, material selection, manufacture, design verification, testing, installation and operation of umbilicals and associated ancillary equipment for the petroleum and natural gas industries. Ancillary equipment does not include topside hardware. Topside hardware refers to any hardware that is not permanently attached to the umbilical, above the topside hang-off termination.

   
   

   This part of ISO 13628 applies to umbilicals containing components, such as electrical cables, optical fibres, thermoplastic hoses and metallic tubes, either alone or in combination.

   
   

   This part of ISO 13628 applies to umbilicals for static or dynamic service, with surface-surface, surface-subsea and subsea-subsea routings.

   
   

   This part of ISO 13628 does not apply to the associated component connectors, unless they affect the performance of the umbilical or that of its ancillary equipment.

   
   

   This part of ISO 13628 applies only to tubes with the following dimensions: wall thickness, t  6 mm, internal diameter, ID  50,8 mm (2 in). Tubular products greater than these dimensions can be regarded as pipe/linepipe and it is expected that they be designed and manufactured according to a recognised pipeline/linepipe standard.

   
   

   This part of ISO 13628 does not apply to a tube or hose rated lower than 7 MPa (1 015 psi).

   
   

   This part of ISO 13628 does not apply to electric cable voltage ratings above standard rated voltages

   U 0 /U(U m)  3,6/6(7,2) kV rms, where U0, U and Um are as defined in IEC 60502-1 and IEC 60502-2.

2. Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 527 (all parts), Plastics — Determination of tensile properties

ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 4080, Rubber and plastics hoses and hose assemblies — Determination of permeability to gas

ISO 4406, Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles

ISO 4672:1997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests

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