Design and Operation of Subsea Production Systems—Subsea Structures and Manifolds

ANSI/API RECOMMENDED PRACTICE 17P FIRST EDITION, JANUARY 2013

ISO 13628-15:2011 (Identical), Petroleum and natural gas industries—Design and operation of subsea production systems—Subsea structures and manifolds

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Contents Page

API Foreword ii

Foreword v

1. Scope. 1

2. Normative references 3

3. Terms, abbreviated terms, and definitions. 4

   1. Terms and definitions 4

   2. Abbreviated terms 8

4. Manifold and template functional considerations 10

   1. General 10

   2. System requirements 11

   3. System Interfaces 12

   4. Cluster manifold requirements 13

   5. Template system requirements 14

5. Design considerations 15

   1. System design 15

   2. Loads 18

   3. Piping design 19

   4. Structural design 21

   5. Foundation design 23

   6. Components 26

6. Verification and validation of design 28

   1. Design verification 28

   2. Design validation 30

   3. Other comments 32

7. Materials and fabrication requirements to piping systems 32

   1. General 32

   2. Pipe and pipe fittings 33

   3. Forged components 34

   4. Chemical composition and weldability 35

   5. Test sampling of base materials 35

   6. Mechanical and corrosion testing of base materials 36

   7. Non-destructive inspection of components 38

   8. Fastener materials 39

   9. Bending and forming operations 40

   10. Overlay welding and buttering of components 42

   11. Welding and non-destructive testing of piping systems 43

8. Fabrication and manufacturing considerations 53

   1. External corrosion protection 53

   2. Colours 53

   3. Material traceability 53

9. Installation, operation and maintenance considerations 53

   1. Installation requirements 53

   2. Operations considerations 54

   3. Maintenance considerations 55

   4. Requirements during installation 56

10. ROV/ROT aspects 59

11. Lifting considerations 60

    iii

    1. Pad eyes 60

    2. Other lifting devices 60

12. Equipment marking 60

13. Transportation and storage 61

    1. General 61

    2. Storage and preservation procedure 61

    3. Sea-fastening 62

14. Abandonment provisions 62

    1. General 62

    2. Decommissioning 62

    3. Design 62

    4. Post-abandonment operation 62

    5. Structures 62

    6. Manifolds 63

    7. Templates 63

Annex A (informative) Typical manifold data sheet 64

Bibliography 66

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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.

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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 13628-15 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.

ISO 13628 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 tools and interfaces on subsea production systems

  
  

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

  
  

• Part 10: Specification for bonded flexible pipe

  
  

• Part 11: Flexible pipe systems for subsea and marine applications

  
  

• Part 15: Subsea structures and manifolds

A Part 12, dealing with dynamic production risers, a Part 14, dealing with high-integrity pressure protection systems (HIPPS), 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 preparation.

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API Recommended Practice 17P/ISO 13628-15:2011

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

Part 15:

Subsea structures and manifolds

1 Scope

This part of ISO 13628 addresses recommendations for subsea structures and manifolds, within the frameworks set forth by recognized and accepted industry specifications and standards. As such, it does not supersede or eliminate any requirement imposed by any other industry specification.

This part of ISO 13628 covers subsea manifolds and templates utilized for pressure control in both subsea production of oil and gas, and subsea injection services. See Figure 1 for an example of such a subsea system.

Equipment within the scope of this part of ISO 13628 is listed below:

1. the following structural components and piping systems of subsea production systems:

   
   

   • production and injection manifolds,

     
     

   • modular and integrated single satellite and multiwell templates,

     
     

   • subsea processing and subsea boosting stations,

     
     

   • flowline riser bases and export riser bases (FRB, ERB),

     
     

   • pipeline end manifolds (PLEM),

     
     

   • pipeline end terminations (PLET),

     
     

   • T- and Y-connection,

     
     

   • subsea isolation valve (SSIV);

     
     

2. the following structural components of subsea production system:

   
   

   • subsea controls and distribution structures,

     
     

   • other subsea structures;

     
     

3. protection structures associated with the above.

1