EN ISO 19906:2019
(Main)Petroleum and natural gas industries - Arctic offshore structures (ISO 19906:2019)
Petroleum and natural gas industries - Arctic offshore structures (ISO 19906:2019)
This document specifies requirements and provides recommendations and guidance for the design, construction, transportation, installation and decommissioning of offshore structures related to the activities of the petroleum and natural gas industries in arctic and cold regions. Reference to arctic and cold regions in this document is deemed to include both the Arctic and other locations characterized by low ambient temperatures and the presence or possibility of sea ice, icebergs, icing conditions, persistent snow cover, and/or permafrost.
The objective of this document is to ensure that complete structures, including substructures, topsides structures, floating production vessel hulls, foundations and mooring systems, in arctic and cold regions provide an appropriate level of reliability with respect to personnel safety, environmental protection and asset value. Value includes value to the owner, to the industry and to society in general.
This document does not contain requirements for the operation, maintenance, service-life inspection or repair of arctic and cold region offshore structures, unless the design strategy imposes specific requirements such as ice management (IM) to reduce ice actions.
Provisions for the operation, maintenance, service‐life inspection and repair of mobile units are given in ISO 19905-1 and ISO 19905-3, supplemented by the provisions relating to ice actions and IM in this document.
This document does not apply to mechanical, process and electrical equipment or any specialized process equipment associated with arctic and cold region offshore operations except in so far as it is necessary for the structure to sustain safely the actions imposed by the installation, housing and operation of such equipment. This document applies to equipment used for the positioning and disconnection of floating structures (see Clause 13).
Erdöl- und Erdgasindustrie - Offshore-Bauwerke für den Arktis-Bereich (ISO 19906:2019)
Industries du pétrole et du gaz naturel - Structures arctiques en mer (ISO 19906:2019)
Le présent document spécifie les exigences et fournit des recommandations et des lignes directrices pour la conception, la construction, le transport, l'installation et la mise hors service de structures en mer, liées aux activités des industries du pétrole et du gaz naturel dans les régions froides et arctiques. Toute référence aux régions froides et arctiques faite dans le présent document renvoie à la fois à l'Arctique et à d'autres sites caractérisés par de faibles températures ambiantes et par la présence potentielle ou avérée de glace de mer, d'icebergs, de régimes de glace, de couverture neigeuse persistante, et/ou de pergélisol.
L'objectif du présent document est de s'assurer que les structures complètes, y compris les sous-structures, les structures Top Sides, les coques de navires de production flottants, les fondations et les systèmes d'ancrage, dans les régions arctiques et froides fournissent un niveau de fiabilité approprié en ce qui concerne la sécurité du personnel, la protection de l'environnement et la valeur des actifs. La valeur comprend la valeur pour le propriétaire, pour l'industrie et pour la société en général.
Le présent document ne comporte pas d'exigences relatives à l'exploitation, la maintenance, l'inspection pendant la durée de vie en service, ou la réparation des structures en mer en zones arctiques et froides, sauf si la stratégie de conception impose des exigences spécifiques telles que la gestion des glaces (IM) afin de réduire les actions de la glace.
Les dispositions relatives à l'exploitation, à la maintenance, à l'inspection pendant la durée de vie en service et à la réparation des unités mobiles sont données dans l'ISO 19905-1 et l'ISO 19905-3, complétées par les dispositions relatives aux actions de la glace et à l'IM figurant dans le présent document.
Le présent document ne s'applique ni aux équipements mécaniques, d'exploitation et électriques, ni aux équipements d'exploitation spécialisés associés à une exploitation en mer ou dans des régions arctiques et froides, sauf dans la mesure où la structure doit assurer en toute sécurité les actions imposées par l'installation, l'hébergement et l'exploitation de ces équipements. Le présent document s'applique aux équipements utilisés pour le positionnement et la déconnexion des structures flottantes (voir Article 13).
Industrija nafte in zemeljskega plina - Naftne ploščadi za arktična območja (ISO 19906:2019)
Ta dokument določa zahteve ter podaja priporočila in smernice glede načrtovanja, transporta, namestitve in izločitve iz uporabe za naftne ploščadi v zvezi z dejavnostmi naftne industrije in industrije zemeljskega plina v arktičnih in hladnih območjih. Sklic na arktična in hladna območja v tem dokumentu vključuje Arktiko in druge lokacije, katerih značilnost so nizke temperature okolice ter prisotnost ali možnost nastanka ledu, ledenih gora, zaledenitve, trajne snežne odeje in/ali permafrosta. Cilj tega dokumenta je zagotoviti, da celotne strukture, vključno s podstrukturami, strukturami na palubi, plavajočimi proizvodnimi plovili, temelji in sistemi zasidranja, v arktičnih in hladnih območjih zagotavljajo ustrezno raven zanesljivosti v zvezi z osebno varnostjo, varstvom okolja in vrednostjo premoženja. Vrednost vključuje vrednost za lastnika, industrijo in družbo na splošno. Ta dokument ne vključuje zahtev za obratovanje, vzdrževanje, preglede in popravila med obratovanjem naftnih ploščadi v arktičnih in hladnih območjih, če strategija zasnove ne nalaga posebnih zahtev, kot je ravnanje v primeru ledu (IM) za zmanjšanje vplivov ledu. Določila glede obratovanja, vzdrževanja, pregledov in popravil med obratovanjem mobilnih enot so podana v standardih ISO 19905-1 in ISO 19905-3, dopolnjujejo pa jih določila v zvezi z vplivi ledu in ravnanjem v primeru ledu v tem dokumentu. Ta dokument se ne uporablja za mehansko, procesno in električno opremo ali nobeno specializirano procesno opremo, povezano z obratovanjem ploščadi v arktičnih in hladnih območjih, razen kolikor je to potrebno, da struktura varno vzdrži vse vplive zaradi namestitve, ohišja in obratovanja takšne opreme. Ta dokument se uporablja za opremo za pozicioniranje in odklop plavajočih struktur (glej točko 13).
General Information
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Related Packages
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN ISO 19906:2012
Industrija nafte in zemeljskega plina - Naftne ploščadi za arktična območja (ISO
19906:2019)
Petroleum and natural gas industries - Arctic offshore structures (ISO 19906:2019)
Erdöl- und Erdgasindustrie - Offshore-Bauwerke für den Arktis-Bereich (ISO 19906:2019)
Industries du pétrole et du gaz naturel - Structures arctiques en mer (ISO 19906:2019)
Ta slovenski standard je istoveten z: EN ISO 19906:2019
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 19906
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 19906:2010
English Version
Petroleum and natural gas industries - Arctic offshore
structures (ISO 19906:2019)
Industries du pétrole et du gaz naturel - Structures Erdöl- und Erdgasindustrie - Offshore-Bauwerke für
arctiques en mer (ISO 19906:2019) den Arktis-Bereich (ISO 19906:2019)
This European Standard was approved by CEN on 21 April 2019.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19906:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 19906:2019) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for
petroleum, petrochemical and natural gas industries” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 19906:2010.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 19906:2019 has been approved by CEN as EN ISO 19906:2019 without any modification.
INTERNATIONAL ISO
STANDARD 19906
Second edition
2019-07
Petroleum and natural gas
industries — Arctic offshore
structures
Industries du pétrole et du gaz naturel — Structures arctiques en mer
Reference number
ISO 19906:2019(E)
©
ISO 2019
ISO 19906:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 19906:2019(E)
Contents Page
Foreword . x
Introduction . xi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 10
4.1 Symbols . 10
4.2 Abbreviated terms . 10
5 General requirements and conditions . 12
5.1 Fundamental requirements . 12
5.2 Design methods . 12
5.3 Site-specific considerations . 13
5.4 Construction, transportation and installation . 15
5.5 Operational measures . 16
5.6 Environmental protection . 16
5.7 Serviceability requirements including vibration . 17
5.8 Decommissioning and reclamation . 17
6 Physical environmental conditions . 17
6.1 General . 17
6.1.1 Physical environment requirements . 17
6.1.2 Physical environmental data monitoring programmes . 18
6.2 Daylight hours . 18
6.3 Meteorology . 18
6.3.1 Air temperature . 18
6.3.2 Wind . 19
6.3.3 Wind chill . 19
6.3.4 Snow . 19
6.3.5 Ice accretion . 19
6.3.6 Visibility . 20
6.3.7 Polar lows . 20
6.4 Oceanography . 20
6.4.1 Water depth . 20
6.4.2 Waves . 20
6.4.3 Ocean currents . 20
6.4.4 Other oceanographic factors . 21
6.5 Sea ice and icebergs . 21
6.5.1 General . 21
6.5.2 Ice types . 22
6.5.3 Ice morphology . 22
6.5.4 Ice movement . 22
6.5.5 Ice properties . 23
6.5.6 Ice monitoring . 23
6.6 Seabed considerations . 23
6.6.1 Earthquakes . 23
6.6.2 Permafrost . 23
6.6.3 Ice gouge . 23
6.6.4 Strudel scours . 23
7 Reliability and limit states design . 24
7.1 Design philosophy . 24
7.1.1 Governing principles . 24
7.1.2 Life-safety categories . 24
ISO 19906:2019(E)
7.1.3 Consequence categories . 24
7.1.4 Exposure levels . 25
7.1.5 Safety and reliability . 25
7.1.6 Limit states . 25
7.1.7 Alternative design methods . 25
7.2 Limit states design method . 26
7.2.1 Limit states . 26
7.2.2 Actions . 28
7.2.3 Principal and companion environmental actions . 29
7.2.4 Combinations of actions and partial action factors . 31
8 Events and actions . 33
8.1 General . 33
8.2 Ice events and actions . 33
8.2.1 General principles for calculating ice actions . 33
8.2.2 Representative values of ice actions . 34
8.2.3 Ice events and design situations . 34
8.2.4 Global ice actions . 35
8.2.5 Local ice actions. 37
8.2.6 Dynamic ice actions . 37
8.2.7 Operational measures to reduce ice actions . 38
8.2.8 Physical and mechanical properties of ice . 38
8.3 Metocean related actions . 39
8.3.1 Metocean actions on structures . 39
8.3.2 Wave-induced velocity of ice features . 41
8.4 Seismic actions . 41
8.4.1 General . 41
8.4.2 Companion seismic actions . 42
8.4.3 Companion ice actions . 42
8.4.4 Factors influencing seismic actions and effects . 42
8.4.5 Seismic isolation and damping systems . 42
9 Foundation design . 42
9.1 General . 42
9.2 Geotechnical data acquisition and identification of hazards . 43
9.2.1 General . 43
9.2.2 Marine soil investigations . 44
9.2.3 Bathymetry survey . 44
9.2.4 Geophysical survey . 44
9.3 Representative values of soil properties . 44
9.4 Design considerations . 45
9.4.1 General . 45
9.4.2 Action factors . 46
9.4.3 Material and resistance factors . 46
9.4.4 Dynamic action effect analysis . 46
9.4.5 Ultimate limit states . 46
9.4.6 Serviceability limit states . 47
9.4.7 Fatigue limit states . 47
9.4.8 Abnormal limit states . 47
9.4.9 Construction and installation . 47
9.5 Gravity-based structures . 48
9.5.1 Arctic considerations for foundation design . 48
9.5.2 Installation and removal . 48
9.6 Piled structures . 49
9.7 Design of anchors for floating systems . 49
9.7.1 General . 49
iv © ISO 2019 – All rights reserved
ISO 19906:2019(E)
9.7.2 Drag anchors . 49
9.7.3 Suction anchors . 50
9.7.4 Piled anchors . 51
9.7.5 Removal . 51
9.8 Scour . 51
9.9 Inspection and performance monitoring . 51
9.10 Seismic analysis . 52
10 Man-made islands . 52
10.1 General . 52
10.2 Island types . 52
10.3 Design considerations . 53
10.3.1 General design considerations . 53
10.3.2 Considerations for man-made islands . 54
10.3.3 Design for ice . 55
10.3.4 Geotechnical considerations . 56
10.3.5 Coastal engineering . 58
10.3.6 Slope protection . 59
10.4 Seismic design . 60
10.5 Construction . 61
10.5.1 Operational requirements . 61
10.5.2 Fill quality control . 61
10.5.3 Armour rock quality control . 62
10.6 Monitoring and maintenance . 62
10.6.1 General . 62
10.6.2 Monitoring of the physical environment . 62
10.6.3 Structural monitoring . 63
10.6.4 Slope and slope-protection monitoring . 63
10.6.5 Maintenance . 63
10.7 Decommissioning and reclamation . 63
11 Fixed steel structures . 64
11.1 General . 64
11.2 General design requirements . 64
11.2.1 Plastic design . 64
11.2.2 Resistance factors . 64
11.2.3 Fracture control . 64
11.2.4 Temperature effects . 65
11.2.5 Damage due to freezing water . 65
11.3 Structural modelling and analysis . 65
11.3.1 General . 65
11.3.2 Interactions . 65
11.3.3 Dynamic analysis . 65
11.4 Strength of tubular members and joints . 65
11.5 Strength of stiffened-plate panels. 66
11.6 Strength of steel-concrete composite walls . 66
11.6.1 General . 66
11.6.2 Analysis methods . 67
11.6.3 Material properties . 67
11.6.4 Design for out-of-plane actions . 67
11.6.5 Design for in-plane actions . 68
11.7 Seismic design . 69
11.7.1 Framed structures . 69
11.7.2 Stiffened-plate structures . 69
11.8 Fatigue . 69
11.9 Materials, testing and NDT . 69
ISO 19906:2019(E)
11.9.1 Material selection . 69
11.9.2 Test temperature . 70
11.9.3 Toughness and NDT . 70
11.10 Coatings . 70
11.11 Corrosion and abrasion protection . 70
11.11.1 Cathodic protection . 70
11.11.2 Ice abrasion . 70
11.11.3 Knife-line corrosion . 70
11.12 Welding . 70
12 Fixed concrete structures . 71
12.1 General requirements . 71
12.1.1 General . 71
12.1.2 Structural requirements . 71
12.1.3 Material requirements . 71
12.2 Actions and action effects . 71
12.3 Structural analysis . 72
12.3.1 Dynamic analysis . 72
12.3.2 Loss of intended internal pressure . 72
12.3.3 Physical representation . 72
12.3.4 Types of analysis . 73
12.3.5 Analysis requirements . 73
12.3.6 Seismic design . 74
12.4 Concrete works. 74
12.4.1 Design. 74
12.4.2 Materials . 77
12.4.3 Execution . 80
12.5 Mechanical systems . 81
12.5.1 Introduction . 81
12.5.2 Permanent mechanical systems . 82
12.5.3 Mechanical systems — Temporary ballasting/deballasting water systems . 82
12.5.4 Attachments and penetrations . 82
12.5.5 Mechanical systems — Design of piping supports . 82
12.6 Marine operations and construction afloat . 82
12.7 Corrosion control . 83
12.8 Inspection and condition monitoring . 83
13 Floating systems . 83
13.1 General . 83
13.2 General methodology . 84
13.2.1 Design and operational philosophy . 84
13.2.2 Design and operational approaches . 84
13.2.3 System considerations . 85
13.2.4 Ice alert system . 85
13.3 Environment . 85
13.4 Actions . 86
13.4.1 Applicability . 86
13.4.2 Ice scenarios . 86
13.4.3 System-specific ice actions . 87
13.4.4 Determination of global ice action effects. 88
13.4.5 Risk to adjacent structures . 89
13.4.6 Other ice action considerations . 89
13.4.7 Action variations . 90
13.5 Hull integrity . 90
13.5.1 Structural philosophy . 90
13.5.2 Hull ductility . 91
vi © ISO 2019 – All rights reserved
ISO 19906:2019(E)
13.5.3 Structural analysis and design . 91
13.5.4 Structural considerations . 91
13.5.5 Condition monitoring . 92
13.6 Hull stability. 92
13.6.1 General considerations . 92
13.6.2 Subdivision . 92
13.6.3 Intact stability . 92
13.6.4 Damaged stability . 92
13.7 Stationkeeping . 93
13.7.1 General . 93
13.7.2 Design of the stationkeeping system. 93
13.7.3 Disconnection and reconnection . 93
13.7.4 Stationkeeping system failures . 96
13.8 Mechanical systems . 96
13.8.1 General considerations . 96
13.8.2 Hull systems . 98
13.8.3 Offloading systems . 100
13.9 Operations . 100
13.9.1 General . 100
13.9.2 Operations and emergency procedures manuals . 100
13.9.3 Deck surfaces . 101
13.9.4 Damage control . 101
13.9.5 Equipment and doors . 101
13.9.6 Inspection and maintenance . 101
13.9.7 Planning and operations . 102
14 Subsea production systems . 102
14.1 General . 102
14.1.1 System components . 102
14.1.2 Exposure level for system components . 102
14.1.3 General provisions for ice actions . 102
14.1.4 Repair . 102
14.2 Ice and seabed considerations . 103
14.2.1 Interactions above the sea floor . 103
14.2.2 Interactions for gouging ice features . 103
14.2.3 Strudel scouring . 103
14.2.4 Permafrost . 104
14.2.5 Geohazards . 104
14.3 Actions on subsea production systems . 104
14.3.1 General action requirements . 104
14.3.2 Ice protection structures . 104
14.3.3 Mudline cellars . 105
14.3.4 Risers and loading/unloading systems . 105
14.3.5 Flowlines and umbilicals . 106
14.3.6 Resistance to ice actions . 107
14.4 Seismic design . 107
14.5 Risk reduction . 107
15 Topsides .
...
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