SIST EN ISO 17776:2017
(Main)Petroleum and natural gas industries - Offshore production installations - Major Accident hazard management during the design of new installations (ISO 17776:2016)
Petroleum and natural gas industries - Offshore production installations - Major Accident hazard management during the design of new installations (ISO 17776:2016)
This document describes processes for managing major accident (MA) hazards during the design of
offshore oil and gas production installations. It provides requirements and guidance on the development
of strategies both to prevent the occurrence of MAs and to limit the possible consequences. It also
contains some requirements and guidance on managing MA hazards in operation.
This document is applicable to the design of
— fixed offshore structures, and
— floating systems for production, storage and offloading
for the petroleum and natural gas industries.
The scope includes all credible MA hazards with the potential to have a material effect on people, the
environment and assets.
This document is intended for the larger projects undertaken to develop new offshore installations.
However, the principles are also applicable to small or simple projects or design changes to existing
facilities and can also be relevant to onshore production facilities.
Mobile offshore units as defined in this document are excluded, although many of the principles can
be used as guidance. The design of subsea facilities are also excluded, though the effects of mobile and
subsea facilities are considered if they can lead to major accidents that affect an offshore installation.
This document does not cover the construction, commissioning, abandonment or security risks
associated with offshore installations.
The decision to apply the requirements and guidance of this document, in full or in part, is intended to
be based on an assessment of the likelihood and possible consequences of MA hazards.
Erdöl- und Erdgasindustrie - Offshore-Produktionsanlagen - Leitfaden für Hilfsmittel und Verfahren zur Gefahrenerkennung und Risikobeurteilung (ISO 17776:2016)
Industries du pétrole et du gaz naturel - Installations des plates-formes en mer - Lignes directrices relatives aux outils et techniques pour l'identification et l'évaluation des risques (ISO 17776:2016)
Industrija nafte in zemeljskega plina - Plavajoči proizvodni objekti - Upravljanje nevarnosti večjih nesreč med načrtovanjem novih objektov (ISO 17776:2016)
Ta dokument opisuje postopke za upravljanje nevarnosti večjih nesreč (MA) med načrtovanjem plavajočih proizvodnih objektov za črpanje nafte in plina. Vsebuje zahteve in smernice za razvoj
strategij za preprečevanje nevarnosti nastanka večjih nesreč in omejevanje možnih posledic. Vsebuje tudi nekatere zahteve in smernice za upravljanje nevarnosti večjih nesreč med obratovanjem.
Ta dokument se uporablja za načrtovanje:
– fiksnih naftnih ploščadi in
– plavajočih sistemov za proizvodnjo, shranjevanje in pretovarjanje
v proizvodnji nafte in zemeljskega plina.
Področje vključuje vse verjetne nevarnosti večjih nesreč, ki lahko bistveno vplivajo na ljudi, okolje in premoženje.
Ta dokument je namenjen za večje projekte, pri katerih se načrtuje namestitev novih objektov. Načela pa veljajo tudi za majhne ali preproste projekte ali spremembe načrtov v obstoječih objektih ter so lahko pomembne tudi za obrate na kopnem.
Premične plavajoče enote, kot so določene v tem dokumentu, niso zajete, čeprav je mnoga načela iz tega standarda mogoče uporabiti kot smernice. Načrtovanje podvodnih objektov je prav tako izključeno, čeprav se upoštevajo učinki premičnih in podvodnih objektov, če lahko privedejo do večjih nesreč, ki vplivajo na plavajoči objekt. Ta dokument ne zajema gradnje, zagona, opustitve ali varnostnega tveganja, povezanega s plavajočimi objekti.
Odločitev o uporabi zahtev in smernic tega dokumenta, v celoti ali po delih, naj
bi temeljila na oceni verjetnosti in možnih posledic nevarnosti večjih nesreč.
General Information
Relations
Related Packages
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 17776:2017
01-marec-2017
1DGRPHãþD
SIST EN ISO 17776:2004
,QGXVWULMDQDIWHLQ]HPHOMVNHJDSOLQD3ODYDMRþLSURL]YRGQLREMHNWL8SUDYOMDQMH
QHYDUQRVWLYHþMLKQHVUHþPHGQDþUWRYDQMHPQRYLKREMHNWRY ,62
Petroleum and natural gas industries - Offshore production installations - Major Accident
hazard management during the design of new installations (ISO 17776:2016)
Erdöl- und Erdgasindustrie - Offshore-Produktionsanlagen - Leitfaden für Hilfsmittel und
Verfahren zur Gefahrenerkennung und Risikobeurteilung (ISO 17776:2016)
Industries du pétrole et du gaz naturel - Installations des plates-formes en mer - Lignes
directrices relatives aux outils et techniques pour l'identification et l'évaluation des
risques (ISO 17776:2016)
Ta slovenski standard je istoveten z: EN ISO 17776:2016
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
SIST EN ISO 17776:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 17776:2017
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SIST EN ISO 17776:2017
EN ISO 17776
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 17776:2002
English Version
Petroleum and natural gas industries - Offshore
production installations - Major Accident hazard
management during the design of new installations (ISO
17776:2016)
Industries du pétrole et du gaz naturel - Installations Erdöl- und Erdgasindustrie - Offshore-
des plates-formes en mer - Lignes directrices relatives Produktionsanlagen - Management der Gefährdungen
aux outils et techniques pour l'identification et durch schwere Störfälle bei der Konstruktion neuer
l'évaluation des risques (ISO 17776:2016) Offshore-Anlagen (ISO 17776:2016)
This European Standard was approved by CEN on 19 October 2016.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17776:2016 E
worldwide for CEN national Members.
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SIST EN ISO 17776:2017
EN ISO 17776:2016 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 17776:2017
EN ISO 17776:2016 (E)
European foreword
This document (EN ISO 17776:2016) 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 CYS.
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 June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 17776:2002.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17776:2016 has been approved by CEN as EN ISO 17776:2016 without any modification.
3
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SIST EN ISO 17776:2017
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SIST EN ISO 17776:2017
INTERNATIONAL ISO
STANDARD 17776
Second edition
2016-12-15
Petroleum and natural gas
industries — Offshore production
installations — Major accident hazard
management during the design of new
installations
Industries du pétrole et du gaz naturel — Installations des plates-
formes en mer — Lignes directrices relatives aux outils et techniques
pour l’identification et l’évaluation des risques
Reference number
ISO 17776:2016(E)
©
ISO 2016
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SIST EN ISO 17776:2017
ISO 17776:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
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SIST EN ISO 17776:2017
ISO 17776:2016(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 4
4 Major accident hazard management overview . 5
4.1 General . 5
4.2 Project management commitment . 5
4.3 Project management accountability . 6
4.4 Project plan to manage major accident hazards . 6
4.5 Objectives of major accident hazard management . 6
4.6 Selection of hazard evaluation and risk assessment methods . 7
4.7 Good engineering practice . 7
4.8 Documentation . 8
4.8.1 General. 8
4.8.2 Register of major accident hazards . 9
4.9 Actions management . 9
4.10 Management of change . 9
5 Management of major accident hazards in design .10
5.1 Overview of MA hazard management .10
5.2 Key concepts .11
5.2.1 Understanding the MA hazards .11
5.2.2 Inherently safer design (ISD) .12
5.2.3 Design strategies for managing MA hazards.13
5.2.4 Barriers .13
5.2.5 Performance standards .14
5.2.6 Communication with technical and operational teams.15
6 Screening and concept selection process .15
6.1 General .15
6.2 Objectives.16
6.3 Functional requirements .17
6.3.1 Screening .17
6.3.2 Hazard identification.17
6.3.3 Major accident hazards evaluation .17
6.3.4 ISD and barriers.18
6.3.5 Performance standards .18
6.3.6 Sufficiency of measures .18
6.3.7 Documentation .18
7 Concept definition and optimization.19
7.1 General .19
7.2 Objectives.20
7.3 Functional requirements .20
7.3.1 Hazard identification.20
7.3.2 Major accident hazard evaluation .20
7.3.3 Risk assessment . .20
7.3.4 Inherently safer design (ISD) .20
7.3.5 Barriers .21
7.3.6 Performance standards .21
7.3.7 Sufficiency of measures .21
7.3.8 Documentation .22
© ISO 2016 – All rights reserved iii
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SIST EN ISO 17776:2017
ISO 17776:2016(E)
8 Detailed design and construction phase .22
8.1 General .22
8.2 Objectives.23
8.3 Functional requirements .23
8.3.1 Overview .23
8.3.2 Hazard identification.24
8.3.3 Major accident hazards evaluation .24
8.3.4 Risk assessment . .24
8.3.5 Inherently safer design (ISD) .24
8.3.6 Barriers .24
8.3.7 Performance standards .25
8.3.8 Sufficiency of measures .25
8.3.9 Register of major accident hazards .25
8.3.10 Documentation .25
8.3.11 Procurement of equipment .26
8.3.12 Construction, completion and commissioning .26
8.3.13 Transfer to operation .26
8.3.14 Actions management .26
9 Major accident hazard management in operation .27
9.1 General .27
9.2 Objectives.27
9.3 Functional requirements .28
9.3.1 Barrier management .28
9.3.2 Revalidation .28
9.3.3 Safety-critical tasks .28
9.3.4 Temporary changes .29
9.3.5 Non-availability of barrier performance .29
9.3.6 Management of change (MOC) . .29
Annex A (informative) Example of a framework for risk-related decision support.31
Annex B (informative) Plan to manage major accident hazards .32
Annex C (informative) Major accident hazard management identification and evaluation tools .41
Annex D (informative) Strategy for managing major accident hazards .71
Annex E (informative) Barrier system performance standards .77
Annex F (informative) HAZID guidewords .80
Bibliography .94
iv © ISO 2016 – All rights reserved
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SIST EN ISO 17776:2017
ISO 17776:2016(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 on 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 the following URL: www.iso.org/iso/foreword.html.
The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing equipment and
systems.
This second edition cancels and replaces the first edition (ISO 17776:2000), which has been technically
revised and the title changed from Petroleum and natural gas industries — Offshore production
installations — Guidelines on tools and techniques for hazard identification and risk assessment to the
present title.
© ISO 2016 – All rights reserved v
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SIST EN ISO 17776:2017
ISO 17776:2016(E)
Introduction
The purpose of this document is to establish requirements and provide guidance for the effective
management of major accident (MA) hazards during the design of new offshore installations for the
petroleum and natural gas industries.
The management of MA hazards involves the application of engineering expertise and knowledge to
provide the measures needed to meet the objectives set by the organizations involved in the project
development. A range of tools for evaluating and assessing the likelihood and consequences of MAs
is needed to help select the measures to be implemented, and to judge when sufficient measures have
been provided.
This process is built on the underlying integrity provided by the application of internationally
recognized codes and standards.
This document covers the following main elements:
— establishing general requirements for identifying MA hazards and their causes;
— assessing MA hazards to understand their likelihood and possible consequences;
— developing suitable strategies for managing MA hazards;
— progressively improving the understanding of MA hazards and their consequences to guide design
decisions during the development phases of the installation;
— providing the measures needed to manage all credible MAs;
— maintaining the measures throughout the life of the installation.
The technical content of this document is arranged as follows:
a) objectives: the goals to be achieved;
b) functional requirements: specifying requirements considered necessary to meet the stated
objectives;
c) annexes: guidelines in support of the functional requirements.
This document should be read in conjunction with ISO 13702 and ISO 15544.
vi © ISO 2016 – All rights reserved
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SIST EN ISO 17776:2017
INTERNATIONAL STANDARD ISO 17776:2016(E)
Petroleum and natural gas industries — Offshore
production installations — Major accident hazard
management during the design of new installations
1 Scope
This document describes processes for managing major accident (MA) hazards during the design of
offshore oil and gas production installations. It provides requirements and guidance on the development
of strategies both to prevent the occurrence of MAs and to limit the possible consequences. It also
contains some requirements and guidance on managing MA hazards in operation.
This document is applicable to the design of
— fixed offshore structures, and
— floating systems for production, storage and offloading
for the petroleum and natural gas industries.
The scope includes all credible MA hazards with the potential to have a material effect on people, the
environment and assets.
This document is intended for the larger projects undertaken to develop new offshore installations.
However, the principles are also applicable to small or simple projects or design changes to existing
facilities and can also be relevant to onshore production facilities.
Mobile offshore units as defined in this document are excluded, although many of the principles can
be used as guidance. The design of subsea facilities are also excluded, though the effects of mobile and
subsea facilities are considered if they can lead to major accidents that affect an offshore installation.
This document does not cover the construction, commissioning, abandonment or security risks
associated with offshore installations.
The decision to apply the requirements and guidance of this document, in full or in part, is intended to
be based on an assessment of the likelihood and possible consequences of MA hazards.
2 Normative references
The following documents are referred to in text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 31000, Risk management — Principles and guidelines
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
© ISO 2016 – All rights reserved 1
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SIST EN ISO 17776:2017
ISO 17776:2016(E)
3.1.1
barrier
functional grouping of safeguards or controls selected to prevent a major accident or limit the
consequences
Note 1 to entry: Barriers can be subdivided into hardware barriers or human barriers and a
...
SLOVENSKI STANDARD
oSIST prEN ISO 17776:2015
01-september-2015
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD3ODYDMRþLSURL]YRGQLREMHNWL
8SUDYOMDQMHQHYDUQRVWLYHþMLKQHVUHþPHGQDþUWRYDQMHPQRYLKREMHNWRY ,62',6
Petroleum and natural gas industries - Offshore production installations - Major Accident
hazard management during the design of new installations (ISO/DIS 17776:2015)
Erdöl- und Erdgasindustrie - Offshore-Produktionsanlagen - Leitfaden für Hilfsmittel und
Verfahren zur Gefahrenerkennung und Risikobeurteilung (ISO/DIS 17776:2015)
Industries du pétrole et du gaz naturel - Installations des plates-formes en mer - Lignes
directrices relatives aux outils et techniques pour l'identification et l'évaluation des
risques (ISO/DIS 17776:2015)
Ta slovenski standard je istoveten z: prEN ISO 17776
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
oSIST prEN ISO 17776:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 17776:2015
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oSIST prEN ISO 17776:2015
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17776
ISO/TC 67/SC 6 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2015-06-25 2015-09-25
Petroleum and natural gas industries — Offshore
production installations — Major Accident hazard
management during the design of new installations
Industries du pétrole et du gaz naturel — Installations des plates-formes en mer — Lignes directrices
relatives aux outils et techniques pour l’identification et l’évaluation des risques
ICS: 75.180.10
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for
Standardization (ISO), and processed under the ISO lead mode of collaboration
as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member
bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
THIS DOCUMENT IS A DRAFT CIRCULATED
formal vote in CEN.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
To expedite distribution, this document is circulated as received from the
IN ADDITION TO THEIR EVALUATION AS
committee secretariat. ISO Central Secretariat work of editing and text
BEING ACCEPTABLE FOR INDUSTRIAL,
composition will be undertaken at publication stage.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 17776:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015
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oSIST prEN ISO 17776:2015
ISO/DIS 17776:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 17776:2015
ISO/DIS 17776
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 4
4 Major Accident hazard management overview . 5
4.1 General . 5
4.2 Project management commitment . 6
4.3 Project management accountability . 6
4.4 Project plan to manage Major Accident hazards . 6
4.5 Objectives of Major Accident hazard management . 7
4.6 Selection of hazard evaluation and risk assessment methods . 7
4.7 Good practice . 8
4.8 Documentation . 8
4.9 Actions management . 9
4.10 Management of change . 10
5 Management of Major Accident hazards in design . 10
5.1 Overview of MA hazard management . 10
5.2 Key concepts and tools . 13
6 Screening and concept selection process . 18
6.1 General . 18
6.2 Objectives . 19
6.3 Functional requirements. 19
7 Concept definition and optimisation . 22
7.1 General . 22
7.2 Objectives . 23
7.3 Functional requirements. 23
8 Detailed design and construction phase . 28
8.1 General . 28
8.2 Objectives . 29
8.3 Functional requirements. 29
9 Major Accident hazard management in operation . 34
9.1 General . 34
9.2 Objectives . 34
9.3 Functional requirements. 35
Annex A (informative) Plan to manage Major Accident hazards . 38
A.1 General . 38
A.2 Scope of the plan . 38
A.3 Basis for the plan . 38
A.4 Regulatory compliance . 38
A.5 Primary codes and standards . 38
A.6 Goals and criteria . 39
A.7 Project organization . 39
A.8 Responsibilities, leadership and commitment . 39
A.9 Contracting arrangements . 40
© ISO 2015 – All rights reserved iii
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oSIST prEN ISO 17776:2015
ISO/DIS 17776
A.10 Procurement integrity .40
A.11 Study programme and timing .40
A.12 Arrangements for action management .40
A.13 Arrangements for integrity assurance and verification .40
A.14 Overview of timing of key deliverables .40
Annex B (informative) Major Accident hazard management identification and evaluation tools .43
B.1 Hazard identification (HAZID) .43
B.2 Explosion hazard analysis .45
B.3 Fire hazard analysis .47
B.4 Smoke and gas dispersion and ingress analysis .48
B.5 Escape, evacuation and rescue (EER) analysis .50
B.6 Temporary refuge (TR) impairment analysis .53
B.7 Dropped object assessment .54
B.8 Ship collision assessment .57
B.9 Failure mode, effects and criticality analysis (FMECA) .58
B.10 Reliability/survivability analysis of emergency systems .60
B.11 Risk Analysis .62
B.12 Hazard and operability (HAZOP) study .64
B.13 Integrity analysis of instrumented systems .65
B.14 Analysis of human factors .67
B.15 Environmental risk assessment .69
B.16 Terms of reference.70
Annex C (informative) Strategy for managing major accident hazards .72
C.1 Inherently safer design (ISD) .72
C.2 Barriers .73
Annex D (informative) Barrier system performance standards .76
D.1 Performance standards for barriers .76
D.2 Design performance standards accountability .77
D.3 Verification of design standards .77
D.4 Operations performance standards .77
D.5 Inspection, testing and maintenance.77
Annex E (informative) Oil &Gas UK — Framework for risk-related decision support .78
Annex F (informative) HAZID guidewords.79
Bibliography .95
iv © ISO 2015 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 17776:2015
ISO/DIS 17776
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. 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. 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.
The committee responsible for this document is Technical Committee ISO/TC 67, Materials, equipment and
offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 6, Processing
equipment and systems.
This second edition cancels and replaces the first edition (ISO 17776:2000), which has been technically
revised and the title changed from Petroleum and natural gas industries — Offshore production installations —
Guidelines on tools and techniques for hazard identification and risk assessment to the present title.
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Introduction
The purpose of this International Standard is to establish requirements and provide guidance for the effective
management of Major Accident (MA) hazards during the design of new offshore installations for the
petrochemical and natural gas industries.
The management of MA hazards involves the application of engineering expertise and knowledge to provide
the measures needed to meet the objectives set by the organizations involved in the project development. A
range of tools for evaluating and assessing the likelihood and consequences of MAs is needed to help select
measures to be implemented and to judge when sufficient measures have been provided.
This process is built on the underlying integrity provided by the application of internationally recognised codes
and standards.
This International Standard covers the following main elements:
establishing general requirements for identifying MA hazards and their causes;
evaluating MA hazards to understand their likelihood and possible consequences;
developing suitable strategies for managing MA hazards;
progressively improving the understanding of MA hazards and their consequences to guide design
decisions during the development phases of the installation;
providing the measures needed to manage a MA;
maintaining the measures throughout the life of the installation.
This International Standard should be read in conjunction with ISO 13702 and ISO 15544.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 17776
Petroleum and natural gas industries — Offshore production
installations — Major Accident hazard management during the
design of new installations
1 Scope
This International Standard describes processes for managing Major Accident (MA) hazards associated with
the design and operation of offshore oil and gas production installations. It provides requirements and
guidance on the development of strategies both to prevent the occurrence of MAs and to control and mitigate
the possible consequences.
This International Standard is applicable to the design of
fixed offshore structures, and
floating systems for production, storage and offloading
for the petroleum and natural gas industries.
The scope includes all MA hazards with the potential to have a material effect on personnel, assets and the
environment.
This International Standard is intended for large capital projects related to offshore operating installations.
However, the principles are also applicable to small or simple projects or design changes to existing facilities,
and can also be relevant to onshore production facilities.
This International Standard is not applicable to mobile offshore units and subsea installations, although many
of the principles contained in this International Standard can be used as guidance. It does not cover the
construction, commissioning, abandonment or security risks associated with offshore installations.
The decision to apply the requirements and guidance of this International Standard, in full or in part, is
intended to be based on an assessment of the likelihood and possible consequences of MA hazards.
The technical content of this International Standard is arranged as follows:
a) Objectives: the goals to be achieved;
b) Functional requirements: activities considered necessary to meet the stated objectives;
c) Annexes: guidelines in support of the functional requirements.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 31000, Risk management — Principles and guidelines
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3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms, definitions and abbreviated terms apply.
3.1 Terms and definitions
3.1.1
barrier
functional grouping of safeguards or controls selected to prevent the realisation of a hazard
Note 1 to entry: A barrier may be a passive, active or procedural measure and includes inherently safer design
measures.
Note 2 to entry: Adapted from IOGP 415.
3.1.1.1
barrier element
physical, technical or operational component in a barrier system
3.1.1.2
barrier function
function intended to prevent, control, or mitigate undesired or accidental events
3.1.1.3
barrier management
general term to cover the coordinated activities to establish and maintain barriers such that they at all times
maintain their function
3.1.2
control
limiting the extent or duration of a hazardous event
Note 1 to entry: This definition is applied to this International Standard; alternative definitions are used in other
standards.
3.1.3
emergency response
action taken by personnel on or off an installation to control or mitigate a Major Accident or initiate and
execute abandonment
3.1.4
environment
surroundings in which an organization operates, including air, water, land, natural resources, flora, fauna,
humans and their interrelation
3.1.5
environmental impact
any change to the environment, whether adverse or beneficial, wholly or partially resulting from an
organization’s activities, products or services
3.1.6
escape route
route leading to the place where people muster, or to an area from which people can leave the installation in
an emergency
3.1.7
evacuation
planned method of leaving the installation in an emergency
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3.1.8
harm
injury or damage to the health of people, or damage to property or the environment
[ISO/IEC Guide 51:2014]
3.1.9
hazard
potential source of harm
[ISO/IEC Guide 51:2014]
3.1.10
hazardous event
event that can cause harm
[ISO/IEC Guide 51:2014]
3.1.11
individual risk
risk to which an individual is exposed during a defined period of time
3.1.12
inherently safer design
design which eliminates or reduces Major Accident hazards through measures that are permanent and
inseparable from the design
3.1.13
Major Accident
MA
hazardous event that results in
multiple fatalities or severe injuries; or
extensive damage to structure, installation or plant; or
large-scale impact on the environment (e.g. persistent and severe environmental damage that can lead to
loss of commercial or recreational use, loss of natural resources over a wide area or severe
environmental damage that will require extensive measures to restore beneficial uses of the environment)
Note 1 to entry: In this International Standard, a Major Accident is the outcome of realisation of a major hazard.
Note 2 to entry: This definition is intended to incorporate terms such as “Major Accident” as defined by UK HSE.
Source: IOGP Report No. 456.
3.1.14
major hazard
hazard with the potential, if realized, to result in a Major Accident
3.1.15
mitigation
limitation of the effects of a hazardous event
Note 1 to entry: This definition is applied to this International Standard; alternative definitions are used in other
standards.
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3.1.16
muster area
designated area to which personnel report when required to do so
3.1.17
performance standard
statement of the performance required of a system, item of equipment, person or procedure, and used as the
basis for its management
Note 1 to entry: Performance standards are applied to active and passive barriers.
Note 2 to entry: Performance Standards can be expressed in qualitative or quantitative terms.
Note 3 to entry: Barrier performance standards address the functionality, reliability, survivability and interdependency
of barriers under emergency conditions.
3.1.18
risk
combination of the probability of occurrence of harm and the severity of that harm
[ISO/IEC Guide 51:2014]
3.1.19
risk tolerance criteria
qualitative or quantitative criteria used to express a risk level that is considered as the upper limit in order for
the activity or undertaking to be tolerable
3.1.20
temporary refuge
TR
place provided where personnel can take refuge for a predetermined period while investigations, emergency
response and evacuation preparations are undertaken
3.1.21
tolerable risk
level of risk that is accepted in a given context based on the current values of society
[ISO/IEC Guide 51:2014]
3.2 Abbreviated terms
CFD computational fluid dynamics
EER escape, evacuation and rescue
ER emergency response
ESD emergency shutdown
F&G fire and gas
HAZID hazard identification
HAZOP hazard and operability study
IOGP International Association of Oil & Gas Producers
ISD inherently safer design
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LOPA layer of protection analysis
MA Major Accident
MOC management of change
P&ID piping and instrument diagram
PFD probability of failure on demand
QRA quantitative risk analysis
TR temporary refuge
4 Major Accident hazard management overview
4.1 General
The process to manage MA hazards shall align with the principles and framework set out in ISO/IEC 31000,
and shall
establish the context prior to starting or executing any of the elements of the process;
update the context throughout the process;
apply a thorough process for communicating, consulting, monitoring and review.
In developing the context for managing MA hazards, 'lessons learned' from other organizations, accident
reports and general safety bulletins made available for public review shall be taken into account where these
identify additional hazards, additional measurers, or highlight deficiencies in the current measures for the
management of MA hazards on offshore installations. This is part of a continual improvement effort which
requires users to seek opportunities for improving their designs on a continual basis.
A process to manage MA hazards shall be applied throughout all stages of a project. Designs shall be
regularly reviewed during their development and changed as necessary to achieve the strategies developed to
meet the defined objectives and risk criteria.
Modifications to an existing installation shall be conducted under an appropriate management of change
(MOC) process. To assess how any modification can change the likelihood or consequences of an MA, a
good understanding is needed of the existing MA hazards and any new MA hazards introduced by the
change. It is also necessary to understand the effectiveness of the current strategies to manage the existing
MA hazards, in order to avoid compromising design measures already implemented to reduce risk.
If strategies for managing the MA hazards are not available, the requirements and guidance provided in this
International Standard shall be used to identify the existing MA hazards and develop suitable strategies to
manage them.
The outcome of this process is the measures necessary to manage each type of MA hazard for the life cycle
of the installation. In order to determine the most effective range of design measures, a systematic analysis,
using a range of
...
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