CO2 Onshore-pipeline-mechanical-design-report.pdf

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Mechanical Design report for CO2 onshore pipeline construction

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KCP-GNS-PLD-DRP-0004 Rev: 03 Project Title: Document Title: Kingsnorth Carbon Capture & Storage Project Onshore Pipeline Mechanical Design Report Page 1 of 31

Onshore Pipeline Mechanical Design ReportTable of Contents1 Summary ......................................................................................................................... 3 2 Introduction ...................................................................................................................... 5 2.1 Scope of Document .................................................................................................. 5 2.2 Definitions ................................................................................................................. 6 2.3 Abbreviations ............................................................................................................ 6 2.4 System of Units......................................................................................................... 6 2.5 Cross References ..................................................................................................... 6 3 Design Data ..................................................................................................................... 7 3.1 Linepipe Properties ................................................................................................... 7 3.2 Operating Data ......................................................................................................... 8 3.3 Environmental Data .................................................................................................. 8 3.4 External Corrosion Protection ................................................................................... 8 4 Mechanical Calculations .................................................................................................. 9 4.1 Wall Thickness Calculations ..................................................................................... 9 4.2 Circumferential Stresses ......................................................................................... 10 4.3 Longitudinal Stresses for Fully Restrained Pipeline................................................. 10 4.4 Equivalent Stress for Fully Restrained Pipeline ....................................................... 11 4.5 Anchor Force and Displacement, Partly Restrained Pipeline .................................. 12 4.6 Anti-buoyancy Assessment ..................................................................................... 13 4.7 Upheaval Buckling .................................................................................................. 13 4.8 API RP 1102 Road Crossing Assessment .............................................................. 14 5 Mandatory References .................................................................................................. 15 5.1 Codes and Standards ............................................................................................. 15 6 Supporting References .................................................................................................. 16 6.1 Project Documentation ............................................................................................ 16 6.2 External Documentation .......................................................................................... 16 7 Appendix A, PD 8010-1 Mechanical Design Calculations .............................................. 17 7.1 Wall Thickness........................................................................................................ 17 7.2 Expansion ............................................................................................................... 18 7.3 Upheaval Buckling .................................................................................................. 24 7.4 Specific Gravity (Bouyancy) .................................................................................... 25 8 Appendix B, API RP 1102 Uncased Road Crossing Assessment .................................. 26 9 Appendix C, DNV RP-J202 Wall Thickness Calculations ............................................... 30 9.1 Extract from Pressure Containment Calculations .................................................... 31

Kingsnorth CCS De monstration Pro ject The information contained in this document (the Infor ma tion) is provided in good faith. E.ON UK plc, its subcontractors, subsidiaries, affiliates, e mployees, advisers, and the Depart ment of Energy and Climate Chan ge (DECC) make no representation or warranty as to the accuracy, reliability or completeness of the Infor mation and neither E.ON UK plc nor any of its subcontractors, subsidiaries, affiliates, e mployees, advisers or DECC shall have any liability whatsoever fo r any direct or indirect loss howsoe ver arising from the use of the Infor mation by any party.

KCP-GNS-PLD-DRP-0004 Rev: 03 Project Title: Document Title: Kingsnorth Carbon Capture & Storage Project Onshore Pipeline Mechanical Design Report Page 2 of 31

List of TablesTable 1.0-a Table 1.0-b Table 1.0-c Table 1.0-d Table 3.1-a Table 3.2-a Table 3.3-a Table 4.1-a Table 4.2-a Table 4.2-b Table 4.3-a Table 4.3-b Table 4.4-a Table 4.4-b Table 4.5-a Table 4.5-b Table 4.6-a Table 4.7-a Table 9.0-a Table 9.0-b Table 9.0-c Recommended Wall Thickness for Pressure Containment (ISO 3183 L450M) .........3 Recommended Wall Thickness for Pressure Containment (ISO 3183 L485M) .........3 Pipeline Anchor Forces...............................................................................................4 Concrete Coating Requirements ................................................................................4 Linepipe Properties .....................................................................................................7 Operating Data ...........................................................................................................8 Environmental Data ....................................................................................................8 Wall Thickness Results...............................................................................................9 Circumferential Stress (DF 0.72) ............................................................................. 10 Circumferential Stress (DF 0.30) ............................................................................. 10 Longitudinal Operating Stress for Fully Restrained Pipeline (DF 0.72) ................... 11 Longitudinal Operating Stress for Fully Restrained Pipeline (DF 0.30) ................... 11 Equivalent Operating Stress for Fully Restrained Pipeline (DF 0.72) ..................... 11 Equivalent Operating Stress for Fully Restrained Pipeline (DF 0.30) ..................... 12 Anchor Force, Active Length and End Displacement (DF 0.72).............................. 12 Anchor Force, Active Length and End Displacement (DF 0.30).............................. 12 Continuous Concrete Coating Thickness ................................................................ 13 Relationship between Imperfection Height and Depth of Cover ............................. 13 DNV RP-J202 Wall Thickness Requirements (120barg) ......................................... 30 DNV RP-J202 Wall Thickness Requirements (150barg, base case) ...................... 30 DNV RP-J202 Wall Thickness Requirements (200barg) ......................................... 30

Table of FiguresFigure 2-1-a Outline System Schematic..........................................................................................5

Table of HoldsHOLD 1 2 3 Description Maximum allowable operating pressure Maximum operating temperature Soil density Section 3.2 3.2 3.3

Kingsnorth CCS De monstration Pro ject The information contained in this document (the Infor ma tion) is provided in good faith. E.ON UK plc, its subcontractors, subsidiaries, affiliates, e mployees, advisers, and the Depart ment of Energy and Climate Chan ge (DECC) make no representation or warranty as to the accuracy, reliability or completeness of the Infor mation and neither E.ON UK plc nor any of its subcontractors, subsidiaries, affiliates, e mployees, advisers or DECC shall have any liability whatsoever fo r any direct or indirect loss howsoe ver arising from the use of the Infor mation by any party.

KCP-GNS-PLD-DRP-0004 Rev: 03 Project Title: Document Title: Kingsnorth Carbon Capture & Storage Project Onshore Pipeline Mechanical Design Report Page 3 of 31

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SummaryThis document addresses the methodology and calculations performed to determine the mechanical strength and stability of the onshore Kingsnorth CCS pipeline. Mechanical calculations based on a linepipe material grade of ISO 3183 L450M (API 5L X65 equivalent) were carried out for the onshore section of the pipeline for design pressure options of 120barg, 150barg (base case) and 200barg with a design temperature of 70degC. Comparative wall thicknesses for pressure containment only have been conducted for a material grade of ISO 3183 L485M (API 5L X70 equivalent). Results for the base case option are shown in bold. A new code which specifically addresses the transportation of CO2 has been developed and is available for general use, DNV RP-J202, Design and Operation of CO2 Pipelines [M7]. This code supplements the requirements of ISO 13623, Petroleum and Natural Gas Industries - Pipeline Transportation Systems [M8] and provides guidance on the determination of the required pipeline wall thickness as appropriate for the location class and fluid category. Neither code however, provides guidance on the determination of Building Proximity Distances (BPD) for differing design factors which is required for pipeline routing. DNV RP-J202 [M7] recommends the use of CO2 dispersion modelling, however, until such information or guidance