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GB 46766-2025: Safety specification for offshore oil and gas fixed platform
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Safety specification for offshore oil and gas fixed platform
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Standard similar to GB 46766-2025
SY/T 6430 | SY 6279 | AQ/T 3034 | GB/T 44693.3 | GB 46767 | Basic data
| Standard ID | GB 46766-2025 (GB46766-2025) |
| Description (Translated English) | Safety specification for offshore oil and gas fixed platform |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | E09 |
| Classification of International Standard | 13.100 |
| Word Count Estimation | 67,633 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-05-01 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB 46766-2025: Safety specification for offshore oil and gas fixed platform
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 13.100
CCSE09
National Standards of the People's Republic of China
Safety Specifications for Offshore Oil and Gas Fixed Platforms
Published on 2025-10-31
Implemented on May 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface V
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Abbreviations 3.
5.General Requirements 3
6.Platform Layout 4
6.1 General Requirements 4
6.2 Wellhead Area 4
6.3 Equipment Area 4
6.4 Room Area 5
6.5 Living Area 5
6.6 Other 5
7 Platform Structure 6
7.1 General Requirements 6
7.2 Design Fundamentals 6
7.3 Loads and Load Combinations 6
7.4 Structural Analysis 6
7.5 Structural Design 7
7.6 Materials 8
7.7 Construction 8
7.8 Welding and other connections 8
8.Corrosion protection 9.
8.1 General Requirements 9
8.2 Coating 9
8.3 Cathodic protection 10
8.4 Internal corrosion protection 10
8.5 Corrosion Monitoring and Detection 10
9.Modular drilling rigs or workover rigs 10.
9.1 General Requirements 10
9.2 Lifting equipment and drilling platform 10
9.3 Power System 11
9.4 Well Control System 11
9.5 Monitoring and control of toxic and harmful gases and combustible gases 12
10 Oil and gas production processes 12
10.1 General Requirements 12
10.2 Safety Protection of Process Equipment and Facilities 13
10.3 Other safety protections 18
10.4 Process Safety Analysis 19
10.5 Thermal insulation and heat tracing 19
10.6 Cold insulation and antifreeze 19
11 Process piping 19
11.1 General Requirements 19
11.2 Piping Layout 19
11.3 Piping Design 20
11.4 Piping Installation 20
11.5 Thermal insulation and heat tracing 20
11.6 Safety devices and signs 20
12 Mechanical equipment and piping systems 20
12.1 General Requirements 20
12.2 Diesel engine 21
12.3 Gas Turbine 22
12.4 Compressor 22
12.5 Pump 23
12.6 Boiler 23
12.7 Pressure Vessels 23
12.8 Piping system 24
12.9 Crane 25
13 HVAC 27
13.1 General Requirements 27
13.2 Ventilation requirements for hazardous areas 27
14 Electrical Engineering 27
14.1 General Requirements 27
14.2 Main Power Supply System 28
14.3 Emergency Power Supply System 29
14.4 Power Distribution System 30
14.5 Lighting System 31
14.6 Electric heat tracing systems and electric heating equipment 31
14.7 Cable 31
14.8 Grounding, lightning protection, and interference prevention measures 32
14.9 Electrical equipment in hazardous areas 32
15 Instrumentation and Control 33
15.1 General Requirements 33
15.2 Alarm 33
15.3 Wellhead Safety Control System 34
15.4 Emergency Shutdown System 35
15.5 Fire and Combustible/Toxic Gas Detection and Alarm System 36
15.6 HIPPS 36
15.7 Control System Test Requirements 37
15.8 Unmanned operation 37
15.9 Control cable 37
15.10 Power Supply 37
15.11 Grounding 37
16 Residential Area 37
16.1 General Requirements 37
16.2 Residential Rooms 38
16.3 Restaurant 38
16.4 Kitchen 38
16.5 Medical Rooms 38
16.6 Recreation Room 38
16.7 Equipment Room 38
16.8 Passageways and entrances/exits 38
17 Fireproof structure 39
17.1 Fire compartmentation rating 39
17.2 Fire resistance integrity 40
17.3 Protection of living quarters, service areas and control stations 40
17.4 Load-bearing structure 42
17.5 Fire Prevention and Firefighting Layout Diagram 42
17.6 Hazard Zone Delineation 42
17.7 Passive fire protection 42
18 Firefighters 42
18.1 General Requirements 42
18.2 Fire protection system configuration 42
18.3 Fire water system 43
18.4 Gas Fire Suppression System 44
18.5 Foam Fire Extinguishing System 44
18.6 Fine water mist fire suppression system 44
18.7 Helicopter Deck Fire Suppression System 44
18.8 Firefighting equipment 44
18.9 Unattended Platform 45
19 Lifesaving and Escape 45
19.1 General Requirements 45
19.2 Lifeboat Equipment 46
19.3 Rescue Boat 46
19.4 Inflatable life raft 47
19.5 lifebuoy 47
19.6 Life jackets 48
19.7 Life jacket 48
19.8 Rope Throwing Equipment 48
19.9 Distress Signal 48
19.10 First Aid Facilities 49
19.11 Escape Equipment 49
19.12 Personal protective equipment and devices 49
19.13 Escape Route 49
19.14 Boarding assembly area 50
19.15 Temporary Shelter 50
20 Navigational aids and signals 50
20.1 General Requirements 50
20.2 Technical Requirements 50
20.3 Explosion-proof 52
21 Communication53
21.1 General Requirements 53
21.2 Configuration 53
21.3 Technical Requirements 54
21.4 Power Supply 55
21.5 antenna 55
21.6 Cables and grounding 55
22.Design document preparation and review 55
Appendix A (Normative) Fire Integrity Rating of Dividers and Deck Separating Adjacent Spaces. 57
References 60
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the Ministry of Emergency Management of the People's Republic of China.
Safety Specifications for Offshore Oil and Gas Fixed Platforms
1 Scope
This document specifies the requirements for offshore oil and gas fixed platforms (hereinafter referred to as "platforms") regarding platform layout, platform structure, corrosion protection, modular drilling rigs, or well workover.
Machinery, oil and gas production processes, process piping, mechanical equipment and piping systems, HVAC, electrical, instrumentation and control, living quarters, fire-resistant structures, fire protection, lifesaving and...
The safety technical requirements for the design of escape routes, navigational aids and signals, and communications are described, along with the corresponding verification methods.
This document applies to the fixing platforms for newly built, renovated, or expanded steel jacket supports.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB (/T) 3836 (all parts) Explosive Atmospheres
GB 12158 General requirements for the prevention of electrostatic discharge accidents
GB/T 14549 Power Quality - Harmonics in Public Power Grids
GB 17380 Regulations on Navigational Aids to Structures and Buildings in Chinese Sea Areas
GB/T 20972 (all parts) Materials for use in hydrogen sulfide-containing environments during oil and gas extraction in the oil and gas industry
GB/T 25444.2 Electrical installations for mobile and fixed offshore facilities – Part 2.System design
GB/T 44310 General Design Specification for Offshore Fixed Platforms
MH/T 6012 Aviation Obstruction Lights
International Convention for the Safety of Life at Sea (SOLAS)
Regulations on the Administration of Compulsory Product Certification
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Offshore oil fixed platforms
During offshore oil extraction, the superstructure and facilities are supported by fixed steel jackets and piles.
3.2
unmanned platform
Platforms without living facilities, unattended and without on-site operations during normal production (excluding trestle bridges connected to manned platforms).
(Connected platform).
[Source. GB 40554.2-2025, 3.2]
3.3
platform group
Combinations of two or more platforms connected by a trestle.
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