RISER SYSTEMS

T084-EN001

REVISION

04

STATUS

C

0405/09/19CRA

Approved

CGAVLE-HEK
0327/02/19CRA

Re-issued for approval

CGAVLE-HEK
0212/02/08GDE

Approved

GCOAALBCA-
0105/01/07GDE

Issued for Comments

GCOAALBCA-
0022/12/06GDE

Internal Check

GCOAAL--
Rev.DateIssued byRevision memoChecked byApproved by
Engineer approvalTotal approval

This document is the property of TOTAL. It must not be stored, reproduced or disclosed to others without written authorisation from the Company.


Contents

1. introduction
1.1. Scope
1.2. Codes, Standards, Specifications and Reference Documents
1.3. References
1.4. Acknowledgements
1.5. Definitions & Abbreviations
2. Executive Summary
3. deepwater riser design methodology
3.1. General
3.2. Steel riser systems
3.3. Flexible risers
3.4. Hybrid riser Systems
3.5. Design software for riser systems
4. Interface requirement
4.1. General
4.2. With Floating Production System
4.3. At seabed
5. riser system review
5.1. General
5.2. Flexible Riser Systems
5.3. Rigid pipe riser systems
5.4. Hybrid riser Systems
6. Insulation Techniques
6.1. General
6.2. Selection of an insulation material
6.3. Insulation material for steel riser and hybrid riser tower
6.4. Insulation material for flexible riser
7. Heating techniques
7.1. General
7.2. Electrical heating
7.3. Hot fluid circulation heating
7.4. Hot Oil Circulation
7.5. Facility requirements
8. Vortex induced vibrations
8.1. General
8.2. VIV prediction
8.3. Vortex suppression devices
9. Vortex Induced Motion (VIM)
9.1. General
9.2. VIM Prediction
9.3. Suppression Devices
10. Artificial lift requirement
10.1. General
10.2. Gas Lift Method
11. Installation Techniques
11.1. General
11.2. Installation of flexible risers
11.3. Installation of steel risers
11.4. Installation of hybrid riser systems
12. Monitoring Devices for risers
12.1. Monitoring of flexible risers
12.2. Monitoring of rigid risers
12.3. Monitoring of hybrid riser tower
12.4. Monitoring of a hybrid 'S' riser
13. Applications & Limitations
13.1. General
13.2. Flexible risers
13.3. Steel risers
13.4. Hybrid riser system
14. ADVANTAGES & DISADVANTAGES

List of Figures

3.1. Steel catenary riser design flow chart
3.2. Non-bonded flexible pipe structure
3.3. Non bonded flexible pipe structure using composite armour material
3.4. Flexible pipe water depth capability (TECHNIP-FMC data - 2006)
4.1. Top attachment arrangemet of flexible riser
4.2. Top attachment arrangement of steel catenary riser
4.3. Mid-water arch supporting flexible risers
4.4. Distributed buoyancy modules being installed on flexible riser
4.5. Typical riser base for Steep system
4.6. Riser base mounted on subsea template
5.1. Non-bonded flexible riser construction
5.2. Flexible pipe carcass
5.3. Zeta and Teta Pressure Vault Profiles (by TECHNIP-FMC)
5.4. PSI Profiles (by TECHNIP-FMC)
5.5. Flexible sample featuring carbon fibre armours
5.6. Flexible pipe water depth capability (TECHNIP-FMC data - 2006)
5.7. Integrated Production Bundle
5.8. Flexible pipe end fitting
5.9. Bending stiffener mounted on riser
5.10. Bottom end riser termination equipped with a bending restrictor
5.11. Flexible riser in "Lazy S" configuration
5.12. Flexible riser in "Lazy Wave" configuration
5.13. Flexible riser in "Steep S" configuration
5.14. Flexible riser in Steep Wave configuration
5.15. Flexible riser in Pliant Wave configuration
5.16. Top tensioned riser applied to semi-submersible (Enserch Green Canyon)
5.17. Top tensioned riser applied to SPAR
5.18. Top tensioned riser applied to TLP
5.19. – Detailed description of Neptune SPAR production riser
5.20. Typcal SCR top section description
5.21. SCR insulation coating failure
5.22. Number of SCRs Installed/Proposed Worldwide (215)
5.23. – Free Standing Hybrid riser Concept (Typical – Production Single Leg riser)
5.24. - Fixed transition between the bottom riser and the foundation
5.25. Pinned connection between the bottom riser and the foundation
5.26. Single Hybrid Riser configurations
5.27. Riser tower/bundle configurations
5.28. Girassol Top Buoyancy Can
5.29. Greater Plutonio Top Buoyancy Can
5.30. - Buoyancy tanks linked to the top riser by a chain
5.31. Single line hybrid riser
5.32. - Free standing hybrid riser: 18”oil export riser on Petrobras P52
5.33. Pipe in Pipe Hybrid Risers general arrangements
5.34. - Girassol riser tower
5.35. - HySRTM System General Configuration
5.36. - Subsea Arch
5.37. - Tethers and foundation system
5.38. - BSR System
6.1. Thermally insulated flexible pipe
7.1. Direct electric heating principle (Earthed current single pipe)
7.2. Hot water heated flexible riser
7.3. Hot water heated flexible riser
8.1. Fluid flow sketch
8.2. Main VIV suppression devices
8.3. VIV helical strakes
8.4. VIV fairings
9.1. Typical Motion of Buoyancy Can VIM
10.1. Gas lift through coil tubing
10.2. – Gas lift line integrated production riser
10.3. Gas lift line in piggy back
10.4. Manifold_based_gas
10.5. Pipe in pipe cross section
11.1. – Main installation phases of flexible riser in free hanging configuration
11.2. Main installation phases of flexible riser in Lazy S configuration
11.3. Main installation phases of flexible riser in Lazy Wave configuration
11.4. Main installation phases of flexible riser in Steep S configuration
11.5. Main installation phases of flexible riser in Steep Wave configuration
11.6. Main installation phases of flexible riser in Pliant Wave
11.7. Main installation phases in steel catenary riser
11.8. First Main Tether Installation
11.9. Subsea Buoy Lowering
11.10. – Restraining Tethers Lowering and Connecting
11.11. – SCRs and Flexible Installation
12.1. Inspection/Monitoring and analysis techniques
12.2. Steel Catenary riser Monitoring
12.3. Typical monitoring system on a hybrid riser system (Girassol field)
12.4. - Acoustic transponder rated to 3000m (from Simrad), and up to 7000m (Sonardyne)
12.5. - VISMU clamped on steel pipe
12.6. - MRU container preparation and installation
12.7. - DACOS “flight” Recorder strapped to a Riser
12.8. CYBERNETIX load cells fitted on pipe
12.9. Temperature sensor fitted on pipe
12.10. Strain Gauges Sketches used on the Bridle Pad-Eyes
loading table of contents...