Appendix “A” Corrosion protection of Offshore structures and modules
Appendix “B” Corrosion protection of Onshore facilities
Appendix “C” Lining and coating for storage and process tanks
Appendix “D” Pre-qualification and characterisation requirements for coating materials and paint systems
Appendix “E” Qualification and application of Thermal Spray Coatings (Metallising) for corrosion prevention of metallic structures - (Offshore – Onshore)
Appendix “F” Corrosion protection of external surfaces of risers - (Offshore) 11.2 ENCLOSURES
Paint system sheets
Technical Specification 27591.VAR.PAI. SPC – Table of approved Paint Systems – Attachment of Specification 20000.VAR.PAI.FUN
ENGINEERING COMPANY STANDARD
This document is property of Eni S.p.A. Exploration & Production Division.
It shall neither be shown to Third Parties not used for purposes other than those for which it has been sent.
FUNCTIONAL SPECIFICATION
APPENDIX “A”
CORROSION PROTECTION FOR OFFSHORE STRUCTURES AND MODULES
20000.VAR.PAI.FUN
Rev. 3 March 2010
CONTENT
1. GENERAL... 3 1.1 INTRODUCTION... 3 1.2 SCOPE... 3 1.3 REFERENCE STANDARDS... 3 2. PROCEDURE FOR PAINT SYSTEM SELECTION ... 3 2.1 GENERAL ... 3 2.2 CODINGS ... 3 2.3 SURFACES DEFINITION ... 4 3. COLOURS SELECTION ... 6 3.1 DECORATIVE COLOURS FOR OFFSHORE PLATFORM ... 6 3.2 PIPING IDENTIFICATION COLOURS ... 7 3.2.1 General ... 7 3.2.2 Coloured bands for piping ... 8 3.3 DECORATIVE COLURS FOR SUBSEA STRUCTURES AND EQUIPMENTS ... 10
1. GENERAL 1.1 INTRODUCTION
This Appendix is an integral part of the Functional Specification 20000 VAR.PAI.FUN Rev. 3 and for no reason shall be used separately. All requirements, standards and provisions reported in the general part of the Specification are fully applicable to this Appendix.
1.2 SCOPE
This Appendix defines the paint systems that can be applied on different areas of Offshore structures and equipments, associated with the production of oil and gas.
Besides the exceptions described in item 1.2 of the Specification, the requirements of this Appendix do not cover corrosion protection of external and internal surfaces of any type of Onshore structures.
1.3 REFERENCE STANDARDS
In addition to the standards listed in the general part of the Specification, this Appendix refers to the last issue of the standards listed below:
ISO 13628-1 Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 1: General requirements and recommendations
ISO 13628-4 Petroleum and natural gas industries -- Design and operation of subsea production systems -- Part 4: Subsea wellhead and tree equipment
2. PROCEDURE FOR PAINT SYSTEM SELECTION
2.1 GENERAL
The selection of paint systems that can be applied on the external and internal areas of structures and facilities included those in immersion, shall be done according to the general requirements provided in item 2.3 of the Specification.
In following Table A-1 the various areas of the offshore structures are listed; for each one the suitable paint systems are defined based on the operating temperature and type of substrate.
The operating temperature and the climatic conditions in which the structure and equipments are located will be defined in the Project Technical Specification.
The selection of topcoat colour shade shall be made according to the requirements listed for each area in Table A-2.
The different areas have been codified with an univocal number, reported in each paint system sheet attached to the Specification.
2.2 CODINGS
The paint systems that can be applied are defined with the following criteria:
a) Internal or external area of the structure, equipment or component, b) Type of substrate,
c) Minimum and maximum operative temperature,
The different types of substrates, listed in Table A-1, are identify as follows:
CS: Any type of carbon steel of not less 6 mm thickness
SCS: Shop-primed carbon steel
SS: Any type of stainless steel
HDG: Hot Dip Galvanised steel
LA: Light and special alloy (e.g. cupronickel, etc.) 2.3 SURFACES DEFINITION
In the following Table A-1 for each Offshore area the applicable paint systems are listed.
TABLE A-1 – PAINT SYSTEMS FOR OFFSHORE STRUCTURES AND MODULES
PAINT SYSTEM
ITEM AREA DESCRIPTION OPERATING
TEMPERATURE CS-SCS SS HDG-LA
1. SUBSEA STRUTCTURES AND EQUIPMENTS
1.1 Wellhead structures and components 80°C 001 N.A. N.A.
> 80°C - 160°C 002 N.A. N.A.
2.1 Splash-Zone’s Structures 003
80°C
Alt. 025
N.A. N.A.
3. EXTERNAL SURFACES
3.1 Cellar e Lower Deck
3.1.1 Structures and components of lower deck areas 004
80°C
Alt. 027
N.A. N.A.
3.1.2 Wellhead structures and components 80°C 001 N.A. N.A.
3.2 Exposed Decks
3.2.1 External surfaces of superstructures and technical rooms 80°C 004 N.A. 012
3.2.2 Access walkways 80°C 004 N.A. 012
3.2.3 Escape walkways 80°C 005 N.A. N.A.
3.2.4 Antiskid working areas 80°C 005 N.A. N.A.
3.3 Structures, Supports and Fittings
3.3.1 Process modules support and structures 80°C 004 012 012
3.3.2 Equipment and machineries foundation 80°C 004 N.A. N.A.
3.3.3 Deck Cranes
3.3.3.1 Crane foundations 80°C 004 N.A. N.A.
3.3.3.2 Crane external surfaces 80°C 004 N.A. N.A.
3.3.3.3 Crane internal surfaces 80°C 006 N.A. N.A.
3.3.3.4 Crane Boom 80°C 004 N.A. 012
3.3.4 Vent masts 80°C 004 N.A. 012
3.3.5 Lifeboat Platform and Davits 80°C 004 N.A. 012
3.3.6 Handrails, railings and other steel components 80°C N.A. N.A. 012
3.3.7 Supports, fittings and other stainless components 80°C N.A. 012 N.A.
4 PROCESS MODULES, PRESSURE VESSELS, HEATEXCHANGERS, COOLERS 4.1 External Un-insulated surfaces
4.1.1 Shell, manholes, skirts, legs, saddles 80°C 004 012 012
TABLE A-1 – PAINT SYSTEMS FOR OFFSHORE STRUCTURES AND MODULES
PAINT SYSTEM
ITEM AREA DESCRIPTION OPERATING
TEMPERATURE CS-SCS SS HDG-LA
> 80°C < 400°C 007 011 N.A.
> 400°C 008 011 N.A.
4.1.2 Access platforms, walkways 80°C 004 012 012
4.1.3 Ladders, cages, handrails, railings, gratings and other
galvanized components 80°C N.A. N.A. 012
4.2 External Insulated Surfaces
80°C 009 010 N.A.
>80°C < 400°C 008 011 N.A.
4.2.1 Shell, manholes, skirts, legs, saddles
> 400°C 008 011 N.A.
5 PIPING
5.1 Un-insulated surfaces
80°C 004 012 012
>80°C < 400°C 007 011 N.A.
5.1.1 Pipes, fittings, valves, filters , separators
> 400°C 008 011 N.A.
5.1.2 Fire fighting and foam lines 80°C 004 012 012
5.1.3 Pipe rack and pipes supports 80°C 004 012 012
5.2 Insulated Surfaces
80°C 009 010 N.A.
>80°C < 400°C 008 011 N.A.
5.2.1 Pipes and fittings
> 400°C 008 011 N.A.
6 OUTSIDE OF LIVING QUARTERS
6.1 External Surfaces of Living Quarters 80°C 004 N.A. N.A.
6.2 External Surface of Living Quarters Adjacent To Process
Modules 013 014 014
6.3 Handrails and Fittings Galvanised 80°C N.A. N.A. 012
6.4 Platforms and Walkways 80°C 005 N.A. N.A.
7 HELIDECK
7.1 Helideck structure 80°C 004 N.A. N.A.
7.2. Helideck landing area 80°C 015 N.A. N.A.
8 FLARE TOWER
8.1 Upper elevation 008
≥ 400°C
Alt. 026
N.A. N.A.
8.2 Intermediate elevation >80°C < 400°C 007 N.A. N.A.
8.3 Lower elevation 80°C 013 N.A. N.A.
TABELLA A-1 – PAINT SYSTEMS FOR OFFSHORE STRUCTURES AND MODULES PAINT SYSTEM
ITEM AREA DESCRIPTION OPERATING
TEMPERATURE CS-SCS SS HDG-LA
9 INTERNAL SURFACES
9.1 Technical Room and Working Areas
9.1.1 Walls and ceiling un-insulated 80°C 016 N.A. N.A.
9.1.2 Walls and ceiling insulated 80°C 017 N.A. N.A.
9.1.3 Floors bare steel 80°C 016 N.A. N.A.
9.1.4 Floors below lowest gratings 80°C 006 N.A. N.A.
9.1.5 Foundations and drip-tray 80°C 006 N.A. N.A.
9.2 Living Quarters
9.2.1 Walls and ceiling un-insulated 80°C 016 N.A. N.A.
9.2.2 Walls and ceiling insulated 80°C 017 N.A N.A
10 TANKS (Internal surfaces)
10.1 Sea Water Tanks, Process and Settling Water tanks 80°C 018 N.A. N.A.
10.2 Fresh and Drinking Water Tanks 80°C 019 N.A. N.A.
10.3 Methanol and Alcohol Tanks 80°C 022 N.A. N.A.
10.4 Sewage Tanks 80°C 020 N.A. N.A.
10.5 Void Spaces and Cofferdams 80°C 006 N.A. N.A.
3. COLOURS SELECTION
Paint systems shall be selected in accordance with project documentation and with enclosed sheets.
The colours of the coatings, related to topcoats only, shall allow the identification of the coated pipe or component, or it shall satisfy aesthetic and homogeneousness requirements.
For this purpose the criteria listed in this Appendix shall apply.
Colour definition refers to the RAL 840 HR Deutschen Normen Auschuss Standard.
All structures, 45 m high over sea level or higher, shall have the upper third painted with orange and white bands, except, due to the elevate temperatures, the flare tower structures.
3.1 DECORATIVE COLOURS FOR OFFSHORE PLATFORM
The Table A-2, unless otherwise specified during project stage and submitted to the Company for approval, defines the final colours of structures, equipment and machinery surfaces, included or installed on offshore platforms.
Table A-2 Decorative colours for Offshore structures and modules
APPLICATION COLOUR RAL
Flare Orange 2004
Outside of living quarters module White 9010
Crane Orange 2004
Platform sign Yellow (reflector)
Black (name)
1016 9005 Rotating electrical machines: electrical motors, alternators (excluded containers,
transformers, reactors)
Blue 5017
Static electrical machines: transformers, reactor Aluminium 9006
Tooling and machine foundations Light Green 6011
Process modules structures Orange 2004
Helideck landing area Green
White (H and lettering) Yellow (circumference)
6028 9010 1023 Electrical control and protection boards and panels Light Grey (structures)
Blue (doors)
7035 5017 Fixed vessels, exchangers, turbine tower and columns, turbo-compressors pumps,,
internal combustion motors and relevant foundations
Light Grey 7035
Daytime air traffic signals Red
White
3002 9010
Tanks - in general Orange 2004
Foam tanks Red 3002
Wellhead and components (1) (1)
Structures, stairs, gangways, etc Orange 2004
Steel surfaces with temperature exceeding 80°C Aluminium 9006
Piping and fire fighting equipments Signal Red 3002
Piping for fluids (fire fighting excluded) Light Grey 7035
Conduits for cables, explosion proof boxes and cases, cable tray, Blue 5012
Escape routes Black 9005
Hand-wheels and handling valves organs Black 9005
Note (1) As defined in the Technical Project Specification or in accordance with the standard colour of the supplier.
3.2 PIPING IDENTIFICATION COLOURS
3.2.1 General
In order to help the identification of the fluid and flow direction, the piping installed on the offshore structures and on process modules shall be identified by application of coloured bands, by means of paint or stickers.
The transported fluids in the pipe shall be identified by the combination of a background and a coding colour according to the Table A-3.
Following general notes shall be taken into consideration:
1) The identification colour shall be applied to the exterior of insulated and un-insulated pipelines.
2) Pipe surfaces, in particular those prepared by equipment manufacturers for corrosion protection or appearance (e.g. anodised aluminium), non-ferrous parts, or cleaned with different method, shall not be colour banded.
3) All paint used for colour banding shall be of the same paint system as applied on the relevant pipelines. When stickers are used colour samples shall be submitted for approval to the Company one month before application. Stickers have to be suitable for offshore operative environment.
4) The above mentioned bands shall be placed where the identification of the fluid is necessary such as at junctions, at both sides of each valves, service appliance, bulkhead and deck penetrations, etc.
3.2.2 Coloured bands for piping
Piping shall be identified by the application of coloured bands (painted or adhesive type) compatible with the underneath coating as showed in Figure A.1:
Figure A.1
Table A-3
Piping identification colours
RAL CODE
FLUID BACKGROUND
COLOUR CODING COLOR
Background Coding Background
Sulphuric acid Violet 4005 Red 3020 4005 3020 4005
Hot water steam condensate Green 6024 Red 3020 6024 3020 6024
Sea water Green 6024 Nero 9005 6024 9005 6024
Cooling water Green 6024 Aluminium 9006 6024 9006 6024
Potable water Green 6024 Orange 2004 6024 2004 6024
Produced water Green 6024 Yellow 1023 6024 1023 6024
Fire fighting Red 3020 - 3020
Air for instruments and services Blu 5017 Red 3020 5017 3020 5017
Aviation gasoline and fuel Yellow 1023 Blue5012 1023 5012 1023
Gasoline and leaded gasoline Yellow 1023 Blue5012 1023 5012 1023
Bitumen Nero 9005 - 9005
Gas oil Yellow 1023 Brown Beige 1011 1023 1011 1023
Drains and Sewage Orange 2004 Black 9005 2004 9005 2004
Treated fuel gas Orange 2004 Green 6024 2004 6024 2004
Gas containing H2S Yellow 1023 Black 9005 1023 9005 6024
Inert gas Blue 5017 Yellow 1023 5017 1023 5017
Gasoline Yellow 1023 Red 3020 1023 3020 1023
Diesel Oil Yellow 1023 Brown Beige 1011 1023 1011 1023
LPG (propane and butane) Yellow 1023 Green 6024 1023 6024 1023
O.B.D - Depression lines. Orange 2004 Blue 5017 2004 5017 2004
Methane and untreated natural gas Yellow 1023 - 1023
Fuel oil Dark Brown 8016 - 8016
Crude oil Dark Brown 8016 Yellow 1023 8016 1023 8016
Oil Yellow 1023 White 9010 1023 9010 1023
Foam Red 3020 Green 6024 3020 6024 3020
Basic solutions, Inhibition glycol
and hypoch. Violet 4005 Green 6024 4005 6024 4005
Steam Red 3020 - 3020
Vacuum Blue 5017 White 9010 5017 9010 5017
3.3 DECORATIVE COLURS FOR SUBSEA STRUCTURES AND EQUIPMENTS
In the Table A-4, unless otherwise specified during project stage and submitted to the Company for approval, are defined the final colours for subsea structures and components according to Annex B of the standard ISO 13628-1.
Table A-4
Decorative colours for subsea structures and equipments
APPLICATION COLOUR RAL
1. Structures
1.1. Protective structure, Base structure, “Pull-in Ramps” Yellow 1023
1.2. “Pull-in Porches” White 9010
1.3. Pad eyes, hinges, ROV attachment/intervention points, etc. Orange 2004
1.4. Guide post Grey 7042
2. Process manifold
2.1. Manifold structure Yellow 1023
2.2. Piping and manifold valves White 9010
2.3. Valve status Yellow (background)
Black (Text)
1023 9005
2.4. Termination hubs Grey 7042
2.5. Termination hub clamps, protection caps, etc. Orange 2004
3. Control system
3.1. Control-pod, ROV attachment/intervention points, etc. Orange 2004
3.2. Panels for ROV operation, control distribution system structure Yellow 1023 4. Subsea tree system
4.1. Wellhead connector system, piping connectors, tree cap with connector, panel for ROV operations, ROV attachment/intervention points, protection frame
Yellow 1023
4.2. Subsea tree valve actuators Orange 2004
4.3. Valve status indicators on panels Yellow (Background)
Black (Text)
1023 9005
4.4. Subsea tree valve block (body), White 9010
5. ROT and replacement frame system
5.1. Steel Structures Yellow 1023
5.2. ROV operated handles, ROV attachment/intervention points, etc Orange 2004
ENGINEERING COMPANY STANDARD
This document is property of Eni S.p.A. Exploration & Production Division.
It shall neither be shown to Third Parties not used for purposes other than those for which it has been sent.
FUNCTIONAL SPECIFICATION
APPENDIX “B”
CORROSION PROTECTION OF ONSHORE FACILITIES
20000.VAR.PAI.FUN
Rev. 3 March 2010
TABLE OF CONTENTS
1. GENERAL... 3 1.1 INTRODUCTION... 3 1.2 SCOPE... 3 2. PROCEDURE FOR PAINT SYSTEM SELECTION ... 3 2.1 GENERAL ... 3 2.2 CODINGS ... 3 2.3 SURFACES DEFINITIONS... 3 3. COLOURS SELECTION ... 5 3.1 DECORATIVE COLOURS FOR ONSHORE FACILITY ... 5 3.2 PIPING IDENTIFICATION COLOURS ... 6 3.2.1 General ... 6 3.2.2 Coloured bands for piping ... 8
1. GENERAL 1.1 INTRODUCTION
This Appendix is an integral part of the Functional Specification 20000 VAR.PAI.FUN Rev. 3 and for no reason can be used separately. All requirements, standards and provisions reported in the general part of the Specification are fully applicable to this Appendix.
1.2 SCOPE
This Appendix defines the paint systems that can be applied on different areas of Onshore production plants and equipments, associated with the production of oil and gas.
Besides the exceptions described in item 1.2 of the Specification, the requirements of this Appendix do not cover corrosion protection of external and internal surfaces of any type of Offshore structures and any type of storage tanks.
2. PROCEDURE FOR PAINT SYSTEM SELECTION
2.1 GENERAL
The selection of paint systems that can be applied on external and internal areas of production plants included the equipments installed, shall be performed according to the general requirements provided by item 2.3 of the Specification.
In following Table B-1 the various areas of production plant and facility are listed, and for each one, the suitable paint systems are defined based on the operating temperature and type of substrate. The operating temperature and the climatic conditions in which the structure and equipments are located will be defined in the relevant Project Technical Specification.
The selection of topcoat colour shade shall be made according to the requirements listed for each areas in Table B-2.
The different areas have been codified with an univocal number, reported in each paint system sheet attached to the Specification.
2.2 CODINGS
The paint systems that can be applied are defined with the following criteria:
a) Internal or external area of the structure, equipment or component, b) Type of substrate,
c) Minimum and maximum operative temperature,
The different types of substrates, listed in Table B-1, are identified as follows:
CS: Any type of carbon steel of not less 6 mm thickness
SCS: Shop-primed carbon steel
SS: Any type of stainless steel
HDG: Hot Dip Galvanising steel
LA: Light and Special Alloy (e.g. Cupronickel, etc.) 2.3 SURFACES DEFINITIONS
In the Table B-1 for each area of Onshore facility the applicable paint systems are listed.
TABLE B-1 – PAINT SYSTEMS FOR ONSHORE PRODUCTION PLANTS PAINT SYSTEM
ITEM AREA DESCRIPTION OPERATING
TEMPERATURE CS-SCS SS HDG-LA
1 CHIMNEYS, FURNACES AND GAS CONVEYORS 1.1 External Un-insulated surfaces
80°C 004 012 012
> 80°C - 400°C 007 N.A. N.A.
1.1.1 External surfaces and equipments
> 400°C 008 N.A. N.A.
1.1.2 Ladders, cages, handrails, railings, gratings and other
components 80°C 004 012 012
1.1.3 Access platforms and walkways 80°C 004 N.A. N.A.
80°C 009 010 N.A.
> 80°C - 400°C 008 011 N.A.
1.2 External Insulated surfaces
> 400°C 008 011 N.A.
2 SHEDS
2.1 Structures
2.1.1 Steel support structures, trusses, curtain walls 80°C 004 012 012
2.1.2 Bridge-cranes, gantries, cranes, pier un-loaders,
cable-cars 80°C 004 N.A. N.A.
2.2 Fittings and equipments
2.2.1 Ladders, pipe racks, cable-trays, flashings, gangways
and rails 80°C 004 012 012
3 CONTAINERS AND TECHNICAL ROOMS
3.1 External Un-insulated surfaces 80°C 004 N.A. 012
3.2 External Insulated surfaces 80°C 009 N.A. N.A.
3.3 Internal surfaces :
3.3.1 Walls and ceiling un-insulated 80°C 016 N.A. N.A.
3.3.2 Walls and ceiling insulated 80°C 017 N.A. N.A.
3.3.3. Floors bare steel 80°C 016 N.A. N.A.
3.3.4 Floors below lowest gratings 80°C 006 N.A. N.A.
3.3.5 Foundations and drip-tray 80°C 006 N.A. N.A.
4 PROCESS MODULES FOR GAS, OIL AND WATER 4.1 Un-insulated surfaces
80°C 004 012 012
> 80°C 400°C 007 011 N.A.
4.1.1 Shell, manholes, skirts, legs, saddles
> 400°C 008 011 N.A.
4.1.2 Access platforms, walkways 80°C 004 012 012
4.1.3 Ladders, cages, handrails, railings, gratings and other
galvanized components 80°C 004 012 012
4.2 Insulated surfaces
80°C 009 010 N.A.
4.2.1 Shell, manholes, skirts, legs, saddles
> 80°C - 400°C 008 011 N.A.
TABLE B-1 – PAINT SYSTEMS FOR ONSHORE PRODUCTION PLANTS PAINT SYSTEM
ITEM AREA DESCRIPTION OPERATING
TEMPERATURE CS-SCS SS HDG-LA
> 400°C 008 011 N.A.
4.3 Wellhead structures and components 80°C 001 N.A. N.A.
5 PIPES WITH SMALL AND MEDIUM DIAMETER, GRIDS AND FILTERS
5.1 Un-insulated surfaces
80°C 004 012 012
> 80°C - 400°C 007 011 N.A.
5.1.1 Pipes, fittings, valves, filters and separators
> 400°C 008 011 N.A.
5.1.2 Fire fighting and foam lines 80°C 004 012 012
5.1.3 Pipe rack and pipes supports 80°C 004 012 012
5.2 Insulated Surfaces
80°C 009 010 N.A.
> 80°C - 400°C 008 011 N.A.
5.2.1 Pipes, fittings, valves, filters , separators
> 400°C 008 011 N.A.
5.3 Grids and Filters
5.3.1 Grids acting as filters for seawater intake pipes and in
all water suction equipments 80°C 003 N.A. N.A.
6 FLARE TOWER
008
6.1 Upper elevation ≥ 400°C
Alt. 026
N.A. N.A.
6.2 Intermediate elevation > 80°C - 400°C 007 N.A. N.A.
6.3 Lower elevation 80°C 013 N.A. N.A.
7 PYLONS AND POLES FOR POWER LINES, LIGHTING EQUIPEMNT, RADIO RELAY STATIONS, ETC.
7.1 External surfaces 80°C 004 012 012
3. COLOURS SELECTION
Paint systems shall be selected in accordance with project documentation and with enclosed sheets.
The colours of the coatings, related to topcoats only, shall allow the identification of the coated pipe or component, or it shall satisfy aesthetic and homogeneousness requirements.
For this purpose the criteria listed in this Appendix shall apply.
Colour definition refers to the RAL 840 HR Deutschen Normen Auschuss Standard.
All structures, 45 m high over sea level or higher, shall have the upper third painted with orange and white bands, except, due to the elevate temperatures, the flare tower structures.
3.1 DECORATIVE COLOURS FOR ONSHORE FACILITY
The Table B-2, unless otherwise specified during project stage and submitted to the Company for approval, defines the final colours of structures, equipment and machinery surfaces, included or installed in onshore facility.
Table B-2
Decorative Colours for Onshore Facility
APPLICATION COLOUR RAL
Steel structures, stairs and gangways, skid supports and foundations Signal green 6024
Handrails Signal yellow 1023
Pipes for fluids Aluminium 9006
Fire-fighting pipes Red 3020
Hand-wheels and valves operating equipment Black 9005
Cable-trays, explosion proof boxes and cases Blue 5012
Fixed vessels, exchangers, tower and columns Aluminium 9006
Turbines, turbo-compressors, pumps, internal combustion motors Light grey 7035
Tooling machines Light green 6011
Rotating electrical machinery: electric motors, alternators (excluding containers, transformers, reactors)
Blue 5017
Static electrical machines : transformers, reactors Aluminium 9006
Electrical control and protection boards and panel Structures: Light grey
Door: Blue
7035 5017
Daytime air traffic signals Orange
White
2004 9010
3.2 PIPING IDENTIFICATION COLOURS
3.2.1 General
In order to help the identification of the fluid and flow direction, the piping installed on the offshore structures and on process modules shall be identified by application of coloured bands, by means of paint or stickers.
The transported fluids in the pipe shall be identified by the combination of a background and a coding colour according to the Table B-3.
Following notes shall be taken into consideration:
1) The identification colours shall be applied to the exterior of insulated and un-insulated pipelines.
2) Pipe surfaces, in particular those prepared by equipment manufacturers for corrosion protection or appearance (e.g. anodised aluminium), non-ferrous parts, or cleaned with different method, shall not be colour banded.
3) All paint used for colour banding shall be of the same paint system as applied on the relevant pipelines. When stickers are used colour samples shall be submitted for approval to the Company one month before application. Stickers have to be suitable for the onshore operative environment .
4) The above mentioned bands shall be placed where the identification of the fluid is necessary such as at junctions, at both sides of each valves, service appliance, bulkhead and deck penetration, etc.
Table B-3
Piping identification colours
RAL CODE
FLUID BACKGROUND
COLOUR CODING COLOUR
Background Coding Background
Sulphuric acid Violet 4005 Red 3020 4005 3020 4005
Hot water steam condensate Green 6024 Red 3020 6024 3020 6024
Sea water Green 6024 Black 9005 6024 9005 6024
Cooling water Green 6024 Aluminium 9006 6024 9006 6024
Potable water Green 6024 Orange 2004 6024 2004 6024
Produced water Green 6024 Yellow 1023 6024 1023 6024
Air for instruments and services Blue 5017 Red 3020 5017 3020 5017
Aviation gasoline and fuel Yellow 1023 Blue 5012 1023 5012 1023
Gasoline and leaded gasoline Yellow 1023 Blue 5012 1023 5012 1023
Bitumen Black 9005 - 9005
Gas oil Yellow 1023 Brown beige 1011 1023 1011 1023
Drains and Sewage Orange 2004 Black 9005 2004 9005 2004
Treated fuel gas Orange 2004 Green 6024 2004 6024 2004
Gas containing H2S Yellow 1023 Black 9005 1023 9005 6024
Inert gas Blue 5017 Yellow 1023 5017 1023 5017
Gasoline Yellow 1023 Red 3020 1023 3020 1023
Diesel Oil Yellow 1023 Brown beige 1011 1023 1011 1023
LPG (propane and butane) Yellow 1023 Green 6024 1023 6024 1023
O.B.D. – Depression lines Orange 2004 Blue 5017 2004 5017 2004
Methane and untreated natural gas Yellow 1023 - 1023
Fuel oil Dark brown 8016 - 8016
Crude oil Dark brown 8016 Yellow 1023 8016 1023 8016
Oil Yellow 1023 White 9010 1023 9010 1023
Agricultural use oil Yellow 1023 Brown beige 1011 1023 1011 1023
Foam Red 3020 Green 6024 3020 6024 3020
Basic solutions Inhibition glycol and hypoch.
Violet 4005 Green 6024 4005 6024 4005
Steam Red 3020 - 3020
Vacuum Blue 5017 White 9010 5017 9010 5017
3.2.2 Coloured bands for piping
Piping shall be identified by the application of coloured bands (painted or adhesive type) compatible with the underneath coating as showed in Figure B.1:
Figure B.1
ENGINEERING COMPANY STANDARD
This document is property of Eni S.p.A. Exploration & Production Division.
It shall neither be shown to Third Parties not used for purposes other than those for which it has been sent.
FUNCTIONAL SPECIFICATION
APPENDIX “C”
LINING AND COATING FOR STORAGE AND PROCESS TANKS
20000.VAR.PAI.FUN
Rev. 3 March 2010
TABLE OF CONTENTS
TABLE OF CONTENTS