ISO INTERNATIONAL STANDARD 13628-15 First edition 2011-09-15 Petroleum and natural gas industries Design and operation of subsea production systems - Part 15: Subsea structures and manifolds Industries du pétrole et du gaz naturel - Conception et exploitation des systemes de production immergés Partie 15: Structures immergées et manifolds Reference number ISO 13628-15:2011(E) @ISO 2011 ISO 13628-15:2011(E) Contents Page Foreword. 1 Scope.. 2 3 Terms, abbreviated terms, and definitions........ 3.1 Terms and definitions .... 3.2 Abbreviated terms........ 4 Manifold and template functional considerations 4.1 9 4.2 System requirements.... 4.3 System Interfaces... 12 4.4 Ciuster manifold requirements ... 4.5 Template system requirements 5 Design considerations.. 5.1 System design . 14 5.2 Loads.. 5.3 Piping design .... 18 5.4 Structural design.. 5.5 Foundation design 22 5.6 Components. 25 6 Verification and validation of design... .26 6.1 Design verification .26 6.2 Design validation. 28 6.3 Other comments. 30 7 Materials and fabrication requirements to piping systems 30 7.1 General 30 7.2 Pipe and pipe fittings .. 7.3 Forged components.. 32 7.4 Chemical composition and weldability . 32 7.5 Test sampling of base materials..... 7.6 Mechanical and corrosion testing of base materials..... 7.7 Non-destructive inspection of components .... 35 7.8 Fastener materials... 37 7.9 Bending and forming operations...... 7.10 Overlayweldingandbutteringofcomponents... .39 7.11 Welding and non-destructive testing of piping systems .. 40 8 Fabrication and manufacturing considerations. 49 8.1 External corrosion protection .49 8.2 8.3 Material traceability .49 9 Installation, operation and maintenance considerations.. 50 9.1 Installation requirements.... .50 9.2 Operations requirements.... 9.3 Maintenance considerations. 9.4 Requirements during installation .... 52 10 ROV/ROT aspects. .55 11 Lifting considerations.. .56 11.1 Pad eyes.... .56 @ ISO 2011 - All rights reserved ii ISO13628-15:2011(E) 11.2 Other lifting devices 56 12 Equipment marking . .56 13 Transportation and storage 57 13.1 Genera...... 13.2 Storage and preservation procedure.... .57 13.3 Sea-fastening .... .57 14 Abandonment provisions .57 14.1 . 57 14.2 Decommissioning. .57 14.3 Design... 14.4 Post-abandonment operation. .58 14.5 Structures 14.6 Manifolds .58 14.7 Templates .58 Annex A (informative) Typical manifold data sheet... .59 Bibliography . 61 iv @ ISO 2011 - All rights reserved