Contents
1. Scope and Applicability.......................................................................................... 5
1.1 Introduction........................................................................................................................5
1.2 Objectives..........................................................................................................................5
1.3 FPSO Safety Engineering Approach .................................................................................6
2. Reference Documents ............................................................................................ 7
3. Terminology and FPSO definitions...................................................................... 10
3.1 Terminology.....................................................................................................................10
3.2 FPSO Definitions .............................................................................................................12
3.3 Classification Definitions..................................................................................................14
4. Overall assessments of FPSO hazards............................................................... 15
4.1 4.1 Technological Risk Analysis ......................................................................................15
4.2 Hazards Evaluation..........................................................................................................16
4.3 Scenario Based Risk Assessment...................................................................................17
4.4 Consequence Analysis and Safety Studies.....................................................................17
4.5 Quantitative Risk Assessment (QRA)..............................................................................19
5. Interfaces with Subsea Production System........................................................ 19
5.1 Management of Interactive Hazards................................................................................19
5.2 Protection Measures for the Subsea Production Facilities ..............................................19
5.3 Emergency Shutdown (ESD) of the Subsea Facilities.....................................................20
6. Interfaces to Umbilicals, Flowlines and Risers (UFR)........................................ 20
6.1 Interactive Hazards from Flowlines and Risers ...............................................................20
6.2 Management of Hazards .................................................................................................21
6.3 Prevention of hazardous occurrence...............................................................................21
6.4 Emergency Shutdown of the risers and pipelines............................................................21
7. FPSO Overall Requirements ................................................................................ 22
7.1 7.1 Management of Hazards ...........................................................................................22
7.2 FPSO General Arrangement ...........................................................................................22
7.3 Accommodation Block and FPSO Control Room ............................................................24

7.4 FPSO Fire zones and Layout Safety ...............................................................................25
7.5 Hazardous Area Classification, Ventilation and Pressure Protection ..............................30
7.6 Fire and Gas detection system........................................................................................33
7.7 Emergency Shutdown and Depressurisation Systems....................................................37
7.8 Fire Protection Philosophy...............................................................................................42
7.9 Active Fire Protection.......................................................................................................43
7.10 Passive Fire Protection....................................................................................................47
7.11 Explosion Overpressure Protection .................................................................................49
7.12 Flare System and Stack...................................................................................................49
7.13 Drains Systems................................................................................................................50
7.14 Noise and Vibration .........................................................................................................50
8. FPSO Accommodation Building Requirements ................................................. 51
8.1 Layout Safety...................................................................................................................51
8.2 HVAC Systems................................................................................................................51
8.3 Flammable gas detection within critical areas of the Accommodation Building...............52
8.4 Fire detection in the Accommodation Block.....................................................................52
8.5 Fire detection in Hull Machinery spaces and Technical Rooms ......................................52
8.6 Fire detection in workshop and other buildings ...............................................................53
9. FPSO Hull and Mooring System .......................................................................... 53
9.1 Management of Main Hazards.........................................................................................53
9.2 Specific protection measures for cargo handling.............................................................53
9.3 Safety Requirements for FPSO Mooring System ............................................................56
10. FPSO Safety Support Systems ............................................................................ 58
10.1 Communications Systems ...............................................................................................58
10.2 Essential and Emergency Power.....................................................................................59
10.3 Navigation Aids................................................................................................................60
11. Escape and Rescue............................................................................................... 61
11.1 Escape Evacuation and Rescue......................................................................................61
11.2 Miscellaneous Safety Equipment.....................................................................................63
12. Export Systems and Pipelines ............................................................................. 65
12.1 Crude oil export system...................................................................................................65
12.2 Gas Export.......................................................................................................................66

12.3 ESD and Alarm Interfaces ...............................................................................................67
12.4 Interfaces with the Off take Tankers................................................................................67
13. Simultaneous Operations..................................................................................... 67
13.1 General............................................................................................................................67
13.2 Anchors of Vessels..........................................................................................................68
13.3 Safety Distances..............................................................................................................68
14. Handling of Emergencies on Site ........................................................................ 68
14.1 Principles .........................................................................................................................68
14.2 Crisis Control Centre .......................................................................................................68
14.3 Mutual Help......................................................................................................................69
14.4 Security measures for the installation..............................................................................69
15. Derogations ........................................................................................................... 70
Appendix 1 Methodology ......................................................................................................72