SIST EN ISO 35104:2020

Petroleum and natural gas industries - Arctic operations - Ice management (ISO 35104:2018)

This document establishes the principles, specifies the requirements and provides guidance for ice management (IM) in arctic and cold regions, from the point of view of planning, engineering, implementation and documentation. Reference to arctic and cold regions in this document is deemed to include both the Arctic and other regions characterized by low ambient temperatures, sea ice, icebergs and icing conditions. These regions are often remote and lacking in marine and communications infrastructure.
Ice management to support the following in-ice activities and infrastructures are covered by this document:
— floating moored and/or dynamically positioned drilling vessels, coring vessels, production facilities and work-over vessels;
— construction and installation (includes trenching, dredging, pipe laying);
— tanker loading and other offloading operations;
— protecting subsea structures and equipment;
— seismic operations;
— oil spill response;
— bottom founded structures (fixed platforms and movable structures, including jack-ups).
This document also applies to mobilization, demobilization and construction support services, because these can be affected by ice conditions.
In view of the wide range of possible offshore operations in arctic and cold regions, this document provides guidelines, but does not present typical ice management plans for field operations.
This document does not provide requirements, recommendations or guidance pertaining to the design of structures, systems and components used in ice management, beyond the principles given. This document does not provide specific formulations for ice loads, which are covered by ISO 19906.
This document is not applicable to coastal port operations and to commercial trading vessels conducting transit or convoy operations.

Erdöl- und Erdgasindustrie - Arktisbetrieb - Eismanagement (ISO 35104:2018)

Industries du pétrole et du gaz naturel - Opérations en Arctique - Gestion des glaces (ISO 35104:2018)

Le présent document établit les principes, spécifie les exigences et fournit des recommandations pour la gestion des glaces (IM) dans les régions arctiques et froides, du point de vue de la planification, de l'ingénierie, de la mise en œuvre et de la documentation. Toute référence aux régions froides et arctiques faite dans le présent document renvoie à la fois à l'Arctique et à d'autres régions caractérisées par de basses températures ambiantes et par la présence de glace de mer, d'icebergs et de conditions propices à l'accrétion de la glace. Ces régions sont souvent éloignées et manquent d'infrastructures maritimes et de communication.
Le présent document traite de la gestion des glaces dans le cadre des activités et infrastructures suivantes en environnement de glace:
—          navires de forage, navires de carottage, installations de production et navires de reconditionnement, ancrés et/ou à positionnement dynamique;
—          construction et installation (y compris création de tranchées, nivellement, pose de tuyaux);
—          chargement de pétroliers et autres opérations de déchargement;
—          protection des structures et équipements sous-marins;
—          opérations sismiques;
—          intervention en cas de déversement de pétrole;
—          structures sur fondations (plates-formes fixes et mobiles, y compris auto-élévatrices).
Le présent document s'applique également aux services de soutien à la mobilisation, à la démobilisation et à la construction, car ils peuvent être affectés par les conditions de glace.
Compte tenu de la grande diversité des opérations en mer possibles dans les régions arctiques et froides, le présent document fournit des lignes directrices mais ne présente aucun plan particulier pour la gestion des glaces dans le cadre des opérations sur site.
Le présent document ne fournit aucune exigence, préconisation ou recommandation en ce qui concerne la conception des structures, systèmes et composants utilisés dans la gestion des glaces, autrement que dans la limite des principes établis. Le présent document ne donne aucune formule spécifique pour les actions exercées par la glace, qui sont couvertes par l'ISO 19906.
Le présent document ne s'applique ni à l'exploitation de ports côtiers, ni aux navires de marchandises qui mènent des opérations de transit ou de convoyage.

Industrija za predelavo nafte in zemeljskega plina - Obratovanje v arktičnem okolju - Upravljanje z ledom (ISO 35104:2018)

General Information

• Status: Published
• Public Enquiry End Date: 31-Jul-2020
• Publication Date: 21-Oct-2020
• ICS: 75.020 - Extraction and processing of petroleum and natural gas
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Oct-2020
• Due Date: 27-Dec-2020
• Completion Date: 22-Oct-2020
• Ref Project: EN ISO 35104:2020 - Petroleum and natural gas industries - Arctic operations - Ice management (ISO 35104:2018)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 35104:2020
01-december-2020
Industrija za predelavo nafte in zemeljskega plina - Obratovanje v arktičnem okolju
- Upravljanje z ledom (ISO 35104:2018)
Petroleum and natural gas industries - Arctic operations - Ice management (ISO
35104:2018)
Erdöl- und Erdgasindustrie - Arktisbetrieb - Eismanagement (ISO 35104:2018)
Industries du pétrole et du gaz naturel - Opérations en Arctique - Gestion des glaces
(ISO 35104:2018)
Ta slovenski standard je istoveten z: EN ISO 35104:2020
ICS:
75.020 Pridobivanje in predelava Extraction and processing of
nafte in zemeljskega plina petroleum and natural gas
SIST EN ISO 35104:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 35104:2020

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SIST EN ISO 35104:2020


EN ISO 35104
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2020
EUROPÄISCHE NORM
ICS 75.020
English Version

Petroleum and natural gas industries - Arctic operations -
Ice management (ISO 35104:2018)
Industries du pétrole et du gaz naturel - Opérations en Erdöl- und Erdgasindustrie - Arktisbetrieb -
Arctique - Gestion des glaces (ISO 35104:2018) Eismanagement (ISO 35104:2018)
This European Standard was approved by CEN on 4 October 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 35104:2020 E
worldwide for CEN national Members.

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SIST EN ISO 35104:2020
EN ISO 35104:2020 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 35104:2020
EN ISO 35104:2020 (E)
European foreword
The text of ISO 35104:2018 has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 35104:2020 by
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 April 2021, and conflicting national standards shall be
withdrawn at the latest by April 2021.
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.
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 35104:2018 has been approved by CEN as EN ISO 35104:2020 without any modification.


3

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SIST EN ISO 35104:2020

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SIST EN ISO 35104:2020
INTERNATIONAL ISO
STANDARD 35104
First edition
2018-10
Petroleum and natural gas
industries — Arctic operations — Ice
management
Industries du pétrole et du gaz naturel — Opérations en Arctique —
Gestion des glaces
Reference number
ISO 35104:2018(E)
©
ISO 2018

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SIST EN ISO 35104:2020
ISO 35104:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

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SIST EN ISO 35104:2020
ISO 35104:2018(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviations . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 5
4 General ice management requirements . 6
4.1 Fundamental requirements for an ice management system . 6
4.1.1 General. 6
4.1.2 Ice management plan . 6
4.1.3 Ice alert system . 6
4.1.4 Hazardous ice conditions . 7
4.2 Safety requirements . 7
4.2.1 Ice management approach . 7
4.2.2 Redundancy . . 7
4.2.3 Existing operations . 7
4.3 Safe learning . 8
4.3.1 Safe learning principles . 8
4.3.2 Continuous improvement . 8
4.4 Risk management . 8
4.4.1 General requirements . 8
4.4.2 Hazard identification and consequences . 8
4.4.3 Responsibility for risk management . 9
4.4.4 Use of risk assessment . 9
4.5 Health, safety, security and environment . 9
4.5.1 Health, safety, security and environment plan . 9
4.5.2 Safe working environment . 9
4.5.3 Incident reporting .10
4.5.4 Compliance with health, safety, security and environment requirements .10
4.6 Organizational functions and procedures .10
4.6.1 General requirements .10
4.6.2 Organization and communication .10
4.7 Specific design, planning and execution requirements .11
5 Ice management plan (IM plan) .12
5.1 IM plan scope.12
5.2 IM plan implementation .12
5.3 IM plan maintenance .13
6 Ice management system performance .13
6.1 High-level IM system issues .13
6.2 Measures of IM performance .13
6.3 Demonstration of intended performance .14
6.4 IM system design .14
6.5 Degradation of ice alert and IM system performance .14
6.6 Operating ice envelope .15
6.7 Operational readiness of IM system .15
6.8 Performance monitoring and documentation .15
6.9 Maintenance and improvement .15
7 Data requirements .15
7.1 General ice management data requirements .15
7.2 Parameters and conditions.16
7.2.1 Ice and metocean parameters .16
© ISO 2018 – All rights reserved iii

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SIST EN ISO 35104:2020
ISO 35104:2018(E)

7.2.2 Monitoring of operational parameters .17
7.2.3 Combined situations .17
7.2.4 Managed ice conditions .17
7.2.5 Wildlife observations .17
7.3 Timeline .17
7.3.1 Planning situations .17
7.3.2 Strategic situations .18
7.3.3 Tactical situations .18
7.3.4 Phases of operations . .19
7.4 Forecasting .19
7.4.1 General.19
7.4.2 Accuracy .19
7.4.3 Metocean data .20
7.4.4 Ice management forecast parameters .20
7.4.5 Nowcasts .21
7.4.6 Forecasts for weather windows .21
7.5 Data collection .21
7.5.1 General.21
7.5.2 Data quality .21
7.6 Data organization .22
7.6.1 General requirements .22
7.6.2 Accuracy and bias of data .22
7.6.3 Instrument specifications .22
7.6.4 Data backup .22
7.7 Data dissemination .22
7.7.1 General.22
7.7.2 Communications and infrastructure .23
7.7.3 Presentation .23
8 Ice detection and tracking .23
8.1 Objectives.23
8.2 System criteria . .24
8.3 Detection capabilities .24
8.4 Tracking capabilities .24
9 Threat evaluation and response .25
9.1 Threat evaluation strategy .25
9.2 Identification of ice hazards .25
9.3 Methods for threat evaluation .26
9.4 Key concepts .27
9.4.1 T-time .27
9.4.2 T-distance .27
9.4.3 Ice hazard distance .27
9.4.4 Ice hazard time .27
9.4.5 Ice drift speed .27
9.4.6 Closest point of approach .27
9.5 Ice alert levels and zones .28
9.5.1 Zoning strategy . .28
9.5.2 Monitoring zone .28
9.5.3 Management zones .28
9.5.4 Secure zones .28
9.5.5 Exclusion zone .28
9.6 T-time calculations .28
9.7 Stages of threat assessment .29
9.8 Models for ice actions.29
9.9 Situations requiring increased vigilance .29
9.10 Infrequent, unanticipated and unforecast ice events .29
10 Physical ice management .30
10.1 Selection criteria.30
iv © ISO 2018 – All rights reserved

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SIST EN ISO 35104:2020
ISO 35104:2018(E)

10.2 IM vessel requirements .30
10.3 Operation-specific procedures .31
10.4 Preparedness .31
10.5 Physical IM strategies and techniques .31
10.6 Ice-restricted operations .32
10.7 Effects of IM .32
11 Personnel and training .32
11.1 IM personnel requirements .32
11.2 General training requirements .33
11.3 Requirements for training .33
11.3.1 Organizations offering ice management training .33
11.3.2 Training personnel .33
11.3.3 Training facility .34
11.3.4 Training elements .34
11.3.5 Training requirements for monitoring and advisory personnel .35
11.3.6 Training requirements for other personnel .35
11.3.7 Training curriculum .35
11.4 Ice management training: specific requirements .36
11.4.1 General.36
11.4.2 Operations in arctic and cold regions .36
11.4.3 Field experience .36
Annex A
...

SLOVENSKI STANDARD
oSIST prEN ISO 35104:2020
01-julij-2020
Industrija za predelavo nafte in zemeljskega plina - Obratovanje v arktičnem okolju
- Upravljanje z ledom (ISO 35104:2018)
Petroleum and natural gas industries - Arctic operations - Ice management (ISO
35104:2018)
Industries du pétrole et du gaz naturel - Opérations en Arctique - Gestion des glaces
(ISO 35104:2018)
Ta slovenski standard je istoveten z: prEN ISO 35104
ICS:
75.020 Pridobivanje in predelava Extraction and processing of
nafte in zemeljskega plina petroleum and natural gas
oSIST prEN ISO 35104:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 35104:2020

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oSIST prEN ISO 35104:2020
INTERNATIONAL ISO
STANDARD 35104
First edition
2018-10
Petroleum and natural gas
industries — Arctic operations — Ice
management
Industries du pétrole et du gaz naturel — Opérations en Arctique —
Gestion des glaces
Reference number
ISO 35104:2018(E)
©
ISO 2018

---------------------- Page: 3 ----------------------
oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviations . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 5
4 General ice management requirements . 6
4.1 Fundamental requirements for an ice management system . 6
4.1.1 General. 6
4.1.2 Ice management plan . 6
4.1.3 Ice alert system . 6
4.1.4 Hazardous ice conditions . 7
4.2 Safety requirements . 7
4.2.1 Ice management approach . 7
4.2.2 Redundancy . . 7
4.2.3 Existing operations . 7
4.3 Safe learning . 8
4.3.1 Safe learning principles . 8
4.3.2 Continuous improvement . 8
4.4 Risk management . 8
4.4.1 General requirements . 8
4.4.2 Hazard identification and consequences . 8
4.4.3 Responsibility for risk management . 9
4.4.4 Use of risk assessment . 9
4.5 Health, safety, security and environment . 9
4.5.1 Health, safety, security and environment plan . 9
4.5.2 Safe working environment . 9
4.5.3 Incident reporting .10
4.5.4 Compliance with health, safety, security and environment requirements .10
4.6 Organizational functions and procedures .10
4.6.1 General requirements .10
4.6.2 Organization and communication .10
4.7 Specific design, planning and execution requirements .11
5 Ice management plan (IM plan) .12
5.1 IM plan scope.12
5.2 IM plan implementation .12
5.3 IM plan maintenance .13
6 Ice management system performance .13
6.1 High-level IM system issues .13
6.2 Measures of IM performance .13
6.3 Demonstration of intended performance .14
6.4 IM system design .14
6.5 Degradation of ice alert and IM system performance .14
6.6 Operating ice envelope .15
6.7 Operational readiness of IM system .15
6.8 Performance monitoring and documentation .15
6.9 Maintenance and improvement .15
7 Data requirements .15
7.1 General ice management data requirements .15
7.2 Parameters and conditions.16
7.2.1 Ice and metocean parameters .16
© ISO 2018 – All rights reserved iii

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oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

7.2.2 Monitoring of operational parameters .17
7.2.3 Combined situations .17
7.2.4 Managed ice conditions .17
7.2.5 Wildlife observations .17
7.3 Timeline .17
7.3.1 Planning situations .17
7.3.2 Strategic situations .18
7.3.3 Tactical situations .18
7.3.4 Phases of operations . .19
7.4 Forecasting .19
7.4.1 General.19
7.4.2 Accuracy .19
7.4.3 Metocean data .20
7.4.4 Ice management forecast parameters .20
7.4.5 Nowcasts .21
7.4.6 Forecasts for weather windows .21
7.5 Data collection .21
7.5.1 General.21
7.5.2 Data quality .21
7.6 Data organization .22
7.6.1 General requirements .22
7.6.2 Accuracy and bias of data .22
7.6.3 Instrument specifications .22
7.6.4 Data backup .22
7.7 Data dissemination .22
7.7.1 General.22
7.7.2 Communications and infrastructure .23
7.7.3 Presentation .23
8 Ice detection and tracking .23
8.1 Objectives.23
8.2 System criteria . .24
8.3 Detection capabilities .24
8.4 Tracking capabilities .24
9 Threat evaluation and response .25
9.1 Threat evaluation strategy .25
9.2 Identification of ice hazards .25
9.3 Methods for threat evaluation .26
9.4 Key concepts .27
9.4.1 T-time .27
9.4.2 T-distance .27
9.4.3 Ice hazard distance .27
9.4.4 Ice hazard time .27
9.4.5 Ice drift speed .27
9.4.6 Closest point of approach .27
9.5 Ice alert levels and zones .28
9.5.1 Zoning strategy . .28
9.5.2 Monitoring zone .28
9.5.3 Management zones .28
9.5.4 Secure zones .28
9.5.5 Exclusion zone .28
9.6 T-time calculations .28
9.7 Stages of threat assessment .29
9.8 Models for ice actions.29
9.9 Situations requiring increased vigilance .29
9.10 Infrequent, unanticipated and unforecast ice events .29
10 Physical ice management .30
10.1 Selection criteria.30
iv © ISO 2018 – All rights reserved

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oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

10.2 IM vessel requirements .30
10.3 Operation-specific procedures .31
10.4 Preparedness .31
10.5 Physical IM strategies and techniques .31
10.6 Ice-restricted operations .32
10.7 Effects of IM .32
11 Personnel and training .32
11.1 IM personnel requirements .32
11.2 General training requirements .33
11.3 Requirements for training .33
11.3.1 Organizations offering ice management training .33
11.3.2 Training personnel .33
11.3.3 Training facility .34
11.3.4 Training elements .34
11.3.5 Training requirements for monitoring and advisory personnel .35
11.3.6 Training requirements for other personnel .35
11.3.7 Training curriculum .35
11.4 Ice management training: specific requirements .36
11.4.1 General.36
11.4.2 Operations in arctic and cold regions .36
11.4.3 Field experience .36
Annex A (informative) Ice management HAZID workbook .37
Annex B (informative) Additional information and guidance .38
Bibliography .91
© ISO 2018 – All rights reserved v

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oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore
structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 8, Arctic operations.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
vi © ISO 2018 – All rights reserved

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oSIST prEN ISO 35104:2020
ISO 35104:2018(E)

Introduction
This document specifies requirements and recommendations applicable to ice management for oil and
gas operations in arctic and cold regions.
Ice management (IM) is defined as the sum of all activities, carried out with the objective to mitigate
hazardous situations by reducing or avoiding actions from any kind of ice (sea ice or glacial ice), and
includes:
— establishment of an understanding of the ice regime and potential ice hazards prior to the initiation
of operations;
— operational surveillance, including detection, tracking and forecasting;
— identification and evaluation of any physical threat to the operation;
— a working ice alert system and associated procedures;
— physical ice management by the supporting IM vessels, including ice breaking and/or iceberg
management;
— procedures associated with the safe avoidance of potentially hazardous ice;
— documentation of IM performance and revision of the IM system to ensure continuous improvement;
— relevant proce
...