SIST EN ISO 19901-5:2016

Petroleum and natural gas industries - Specific requirements for offshore structures - Part 5: Weight control during engineering and construction (ISO 19901-5:2016)

This part of ISO 19901 specifies requirements for controlling the weight and centre of gravity
(CoG) by means of mass management during the engineering and construction of structures for the
offshore environment. The provisions are applicable to offshore projects that include structures of all
types (fixed and floating) and materials. These structures can be complete new installations or the
modifications to existing installations. Maintaining the weight control of existing installations is not
part of the main body of this part of ISO 19901, but some guidance on this is included in the Annex G.
This part of ISO 19901:
— specifies quality requirements for reporting of weights and centres of gravity;
— specifies requirements for weight reporting;
— provides a basis for overall project weight reports or management reports for all weight control
classes;
— specifies requirements for weight and load budgets;
— specifies the methods and requirements for the weighing and the determination of weight and CoG
of major assemblies;
— specifies requirements for weight information from suppliers, including weighing of equipment and
bulk materials for offshore installations.
It can be used:
— as a basis for planning, evaluating and presenting the client’s, contractor’s or fabricator’s weight
management and reporting system;
— as a means of refining the structural analysis or model;
— as a contract reference between client, contractor and suppliers;
— as a basis for costing, scheduling or determining suitable fabrication method(s) or location(s).

Erdöl- und Erdgasindustrie - Besondere Anforderungen an Offshore-Bauwerke - Teil 5: Gewichtskontrolle während der Auslegung und Konstruktion (ISO 19901-5:2016)

Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures en mer - Partie 5: Contrôle des poids durant la conception et la fabrication (ISO 19901-5:2016)

L'ISO 19901-5:2016 spécifie les exigences relatives au contrôle du poids et du centre de gravité (CdG) par la gestion des masses pendant les phases d'étude et de construction des structures en mer. Les dispositions s'appliquent aux projets de tous types (structures en mer fixes et flottantes) et matériaux. Ces structures peuvent être des installations entièrement nouvelles ou des modifications d'installations existantes. Le corps principal de l'ISO 19901-5:2016 ne traite pas du suivi des poids des installations existantes. Toutefois, l'Annexe G du présent document fournit des lignes directrices.
L'ISO 19901-5:2016:
- spécifie les exigences de qualité pour l'établissement de rapports de poids et de centres de gravité;
- spécifie les exigences relatives aux rapports de poids;
- fournit une base commune pour l'établissement de rapports de poids ou de suivi du projet dans son ensemble, quelle que soit la classe de suivi de poids considérée;
- spécifie les exigences relatives aux bilans de poids et de charges;
- spécifie les méthodes et les exigences relatives au pesage et à la détermination du poids et du centre de gravité des principaux ensembles;
- spécifie les exigences relatives aux données de poids provenant des fournisseurs, y compris le pesage des équipements et des matériels courants pour les installations en mer.
Elle peut être utilisée:
- comme base de planification, d'évaluation et de présentation du système de suivi et de gestion des poids du maître d'ouvrage, du contracteur ou du fabricant;
- comme moyen d'amélioration de l'analyse ou du modèle des structures;
- comme référence pour l'établissement du contrat entre le maître d'ouvrage, le contracteur et les fournisseurs;
- comme base d'établissement des coûts, de programmation ou de détermination de la (des) méthode(s) ou de l'emplacement de fabrication approprié(s).

Industrija za predelavo nafte in zemeljskega plina - Posebne zahteve za naftne ploščadi - 5. del: Nadzor teže med projektiranjem in gradnjo (ISO 19901-5:2016)

Ta del standarda ISO 19901 določa zahteve za nadzor teže in težišča (CoG) v okviru upravljanja teže med projektiranjem in gradnjo naftnih ploščadi. Določila veljajo za naftne ploščadi, ki vključujejo strukture (nepremične in plavajoče) ter materiale vseh vrst. Te strukture so lahko popolnoma nove ali nadgradnje obstoječih. Vzdrževanje nadzora teže pri obstoječih strukturah ni obravnavano v osrednjem sklopu tega dela standarda ISO 19901, temveč so nekatere smernice o tem zajete v dodatku G.
Ta del standarda ISO 19901:
– določa zahteve glede kakovosti za poročanje o težah in težiščih;
– določa zahteve za poročanje o teži;
– podaja osnovo za splošna projektna poročila o teži ali upravljavska poročila za vse razrede nadzora teže;
– določa zahteve za proračune teže in obremenitve;
– določa metode in zahteve za tehtanje ter določanje teže in težišča
glavnih sestavov;
– določa zahteve za informacije o teži, posredovane s strani dobaviteljev, vključno s tehtanjem opreme in
nepakiranim materialom za naftne ploščadi.
Uporablja se lahko kot:
– podlaga za načrtovanje, vrednotenje in predstavitev naročnikovega, izvajalčevega ali izdelovalčevega sistema za upravljanje in poročanje teže;
– sredstvo za izboljšanje strukturne analize ali modela;
– referenčna pogodba med naročnikom, izvajalcem in dobavitelji;
– podlaga za izračun stroškov, izdelavo terminskega načrta ali določanje ustreznih metod ali lokacij izdelave.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 09-Feb-2014
• Publication Date: 10-Apr-2016
• Withdrawal Date: 09-Dec-2021
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 09-Dec-2021
• Due Date: 01-Jan-2022
• Completion Date: 10-Dec-2021
• Ref Project: EN ISO 19901-5:2016 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 5: Weight control during engineering and construction (ISO 19901-5:2016)

Relations

• Replaced By: SIST EN ISO 19901-5:2022 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 5: Weight management (ISO 19901-5:2021)
• Effective Date: 08-Dec-2021
• Replaced By: SIST EN ISO 19901-5:2022 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 5: Weight management (ISO 19901-5:2021)
• Effective Date: 08-Jun-2022
• Replaces: SIST EN ISO 19901-5:2004 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 5: Weight control during engineering and construction (ISO 19901-5:2003)
• Effective Date: 01-May-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 19901-5:2016
01-maj-2016
1DGRPHãþD
SIST EN ISO 19901-5:2004
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD3RVHEQH]DKWHYH]DQDIWQH
SORãþDGLGHO1DG]RUWHåHPHGSURMHNWLUDQMHPLQJUDGQMR,62
Petroleum and natural gas industries - Specific requirements for offshore structures -
Part 5: Weight control during engineering and construction (ISO 19901-5:2016)
Erdöl- und Erdgasindustrie - Besondere Anforderungen an Offshore-Bauwerke - Teil 5:
Gewichtskontrolle während der Auslegung und Konstruktion (ISO 19901-5:2016)
Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures
en mer - Partie 5: Contrôle des poids durant la conception et la fabrication (ISO 19901-
5:2016)
Ta slovenski standard je istoveten z: EN ISO 19901-5:2016
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 19901-5:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 19901-5:2016

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SIST EN ISO 19901-5:2016


EN ISO 19901-5
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2016
EUROPÄISCHE NORM
ICS 75.180.10 Supersedes EN ISO 19901-5:2003
English Version

Petroleum and natural gas industries - Specific
requirements for offshore structures - Part 5: Weight
control during engineering and construction (ISO 19901-
5:2016)
Industries du pétrole et du gaz naturel - Exigences Erdöl- und Erdgasindustrie - Besondere
spécifiques relatives aux structures en mer - Partie 5: Anforderungen an Offshore-Bauwerke - Teil 5:
Contrôle des poids durant la conception et la Gewichtskontrolle während der Auslegung und
fabrication (ISO 19901-5:2016) Konstruktion (ISO 19901-5:2016)
This European Standard was approved by CEN on 30 January 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 19901-5:2016 E
worldwide for CEN national Members.

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SIST EN ISO 19901-5:2016
EN ISO 19901-5:2016 (E)
Contents Page
European foreword . 3
2

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SIST EN ISO 19901-5:2016
EN ISO 19901-5:2016 (E)
European foreword
This document (EN ISO 19901-5:2016) 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 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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
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 19901-5:2003.
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 19901-5:2016 has been approved by CEN as EN ISO 19901-5:2016 without any
modification.
3

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SIST EN ISO 19901-5:2016

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SIST EN ISO 19901-5:2016
INTERNATIONAL ISO
STANDARD 19901-5
Second edition
2016-02-15
Petroleum and natural gas
industries — Specific requirements
for offshore structures —
Part 5:
Weight control during engineering
and construction
Industries du pétrole et du gaz naturel — Exigences spécifiques
relatives aux structures en mer —
Partie 5: Contrôle des poids durant la conception et la fabrication
Reference number
ISO 19901-5:2016(E)
©
ISO 2016

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(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. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

Contents Page
Foreword .v
0 Introduction .vi
1 Scope . 1
2 Normative references . 1
3  Terms and definitions . 2
4 Abbreviated terms . 8
5 Weight control classes . 8
5.1 General . 8
5.2 Class A: High definition of weight and CoG . 8
5.3 Class B: Medium definition of weight and CoG. 8
5.4 Class C: Low definition of weight and CoG . 9
5.5 Selection of class of weight control . 9
6 Weight and load budget (WLB).10
6.1 General .10
6.2 Requirements .11
6.3 Content .11
6.3.1 General.11
6.3.2 Weight reserves .12
6.3.3 Future weights and loads .13
6.3.4 Loading conditions and parameters .13
6.3.5 Formats and levels.14
6.3.6 CoG envelopes .14
7 Weight control procedure .15
8 Weight reporting .16
8.1 General .16
8.2 Weight report requirements .17
9  Requirements for suppliers’ weight data and weighing of equipment and bulks .20
9.1 General .20
9.2 Provision of weight information .20
9.3 Weighing requirements .20
9.4 Weighing equipment .21
9.5 Weighing procedure .21
9.6 Notification and witnessing of weighing .22
9.7 Calibration of weighing equipment .22
9.8 Weighing operation .22
9.9 Temporaries during weighing .23
9.10 Items not installed during weighing .23
10  Requirements for weighing of major assemblies .23
10.1 Weighing procedure .23
10.2 Environmental conditions .23
10.2.1 Light .23
10.2.2 Wind .24
10.2.3 Temperature and humidity .24
10.3 Weighing .25
10.3.1 Number and timing of weighing .25
10.3.2 Weighing procedure .25
10.3.3 Notification and witnessing of weighings .26
10.3.4 Preparation of the weighing.26
10.3.5 Weighing equipment .27
10.3.6 Calibration of weighing system .30
© ISO 2016 – All rights reserved iii

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

10.3.7 Weighing foundation and supports .30
10.3.8 Structural integrity .31
10.3.9 Weighing operation .31
10.3.10 CoG calculations .32
10.3.11 Weighing certificate.33
10.3.12 Weighing report .33
11  Requirements for “as-built” weight documentation .34
Annex A (informative) Weight data sheets — Tagged equipment .35
Annex B (informative) Weighing certificates .37
Annex C (informative) Weight and load budget (WLB) formats and levels .41
Annex D (informative) Major elements of the weight displacement .42
Annex E (informative) Supplier weighing procedure.43
Annex F (informative) Guidelines for displacement measurement of floaters .45
Annex G (informative) Requirements for weight control during operations .49
Annex H (informative) Requirements for topside weight estimation — New builds/green field .65
Annex I (informative) Executive summary description .70
Annex J (informative) Weighing result uncertainty .72
Annex K (informative) Weight control database structure .73
Bibliography .75
iv © ISO 2016 – All rights reserved

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(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 WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 67, Materials,equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 7, Offshore structures.
This second edition cancels and replaces the first edition (ISO 19901-5:2003), which has been technically
revised.
ISO 19901 consists of the following parts, under the general title Petroleum and natural gas industries —
Specific requirements for offshore structures:
— Part 1: Metocean design and operating considerations
— Part 2: Seismic design procedures and criteria
— Part 3: Topsides structure
— Part 4: Geotechnical and foundation design considerations
— Part 5: Weight control during engineering and construction
— Part 6: Marine operations
— Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units
— Part 8: Marine soil investigations
The following parts are under preparation:
— Part 9: Structural integrity management
© ISO 2016 – All rights reserved v

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

0 Introduction
0.1 General
The International Standards ISO 19900 to ISO 19906 relating to offshore structures constitute a
common basis covering those aspects that address design requirements and assessments of all offshore
structures used by the petroleum and natural gas industries worldwide. Through their application the
intention is to achieve reliability levels appropriate for manned and unmanned offshore structures,
whatever the type of structure and the nature of the materials used.
It is important to recognize that structural integrity is an overall concept comprising models for
describing actions, structural analyses, design rules, safety elements, workmanship, quality control
procedures and national requirements, all of which are mutually dependent. The modification of one
aspect of design in isolation can disturb the balance of reliability inherent in the overall concept or
structural system. The implications involved in modifications, therefore, need to be considered in
relation to the overall reliability of all offshore structural systems.
ISO 19900 to ISO 19906 relating to offshore structures are intended to provide a wide latitude in the
choice of structural configurations, materials and techniques without hindering innovation. Sound
engineering judgement is therefore necessary in the use of these International Standards.
0.2 Preface
It is proposed to canvass the TC 67/SC 7 member countries to widen the scope of this part of ISO 19901
for the third edition. As a consequence, the title might change.
— It is proposed to expand and re-structure this part of ISO 19901 to more comprehensively address
topsides weight engineering principles, roles, responsibilities and objectives for a complete platform
life cycle.
— It is proposed to re-format into a more traditional ISO document layout.
— The use of weight class A, B and C tables will be reviewed.
— There will be an outline of how to control topside weight, and of the aims and expectations of a
Weight Review Panel (or similar).
— A common topside operating philosophy will be included with a matrix of coincident drilling loads,
operating loads, and laydown / storage loads to be included in topside weight databases.
— It is proposed to give guidance on applied design contractor allowances during detailed design, plus
the use of client operational and management reserves.
— The weight and CoG accuracy expected from weighings will be addressed.
— Separate clauses will be added to give clarity to specific requirements of floating structures and
jackets
— The contents and terminology will be coordinated to interface with ISO 19902, Design of offshore
structures, and the forthcoming ISO19901-9, Structural integrity management (due to be published
in 2017).
It is proposed to give more guidance on a range of topics encountered during the phases of a platform
life cycle, typically:
a) Weight control principles
Overview of principles, aims and objectives
Roles and responsibilities
Competency
vi © ISO 2016 – All rights reserved

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

Software selection
Deliverables for each project phase
Weight report contents
b) Floating structures and jackets
Specific requirements for floating structures
c) Concept and feasibility phase
Use of historical volumetric weight norms
Use of area based weight calculations
Use of footprint ratios
d) Front end engineering design phase
Design parameters to be fixed prior to setting Not-to-Exceed weights
e) Detailed design phase
Control of weight using a Weight Review Panel or similar
Use of contractor allowances
Use of client reserves
Discipline reporting responsibilities
Coincident operating loads
Coincident drilling loads
Coincident laydown and storage loads
Laydown and storage drawings and area signage
Vendor weighing requirements
f) Fabrication phase
Fabricator responsibilities
Reporting of site run materials
Weighing requirements
Preparations for weighing
Expected weight and CoG accuracy from weighings
Predictions and witnessing of weighings
Post-weighing reconciliation and weighing corrections
g) Installation and hook-up phase
Reporting of hook-up weights
h) Operational phase
Control of weight and CoG for topside modifications
© ISO 2016 – All rights reserved vii

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

Interfaces with ISO 19901-9 and ISO 19902
i) Decommissioning phase
Preparations for decommissioning
Some of the above proposed changes are outlined in Annex G of this document (informative).
It is proposed that preparation of the third edition of this part of ISO 19901 will begin immediately
after the issue of this edition with a target publication date of 2017.
viii © ISO 2016 – All rights reserved

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SIST EN ISO 19901-5:2016
INTERNATIONAL STANDARD ISO 19901-5:2016(E)
Petroleum and natural gas industries — Specific
requirements for offshore structures —
Part 5:
Weight control during engineering and construction
1 Scope
This part of ISO 19901 specifies requirements for controlling the weight and centre of gravity
(CoG) by means of mass management during the engineering and construction of structures for the
offshore environment. The provisions are applicable to offshore projects that include structures of all
types (fixed and floating) and materials. These structures can be complete new installations or the
modifications to existing installations. Maintaining the weight control of existing installations is not
part of the main body of this part of ISO 19901, but some guidance on this is included in the Annex G.
This part of ISO 19901:
— specifies quality requirements for reporting of weights and centres of gravity;
— specifies requirements for weight reporting;
— provides a basis for overall project weight reports or management reports for all weight control
classes;
— specifies requirements for weight and load budgets;
— specifies the methods and requirements for the weighing and the determination of weight and CoG
of major assemblies;
— specifies requirements for weight information from suppliers, including weighing of equipment and
bulk materials for offshore installations.
It can be used:
— as a basis for planning, evaluating and presenting the client’s, contractor’s or fabricator’s weight
management and reporting system;
— as a means of refining the structural analysis or model;
— as a contract reference between client, contractor and suppliers;
— as a basis for costing, scheduling or determining suitable fabrication method(s) or location(s).
2 Normative references
The following referenced documents are indispensable for the application 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/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
measurement (GUM:1995)
© ISO 2016 – All rights reserved 1

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SIST EN ISO 19901-5:2016
ISO 19901-5:2016(E)

3  Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
assembly
designed and fabricated group
...

SLOVENSKI STANDARD
oSIST prEN ISO 19901-5:2014
01-januar-2014
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD3RVHEQH]DKWHYH]DQDIWQH
SORãþDGLGHO1DG]RUWHåHPHGSURMHNWLUDQMHPLQJUDGQMR,62',6

Petroleum and natural gas industries - Specific requirements for offshore structures -
Part 5: Weight control during engineering and construction (ISO/DIS 19901-5:2013)
Erdöl- und Erdgasindustrie - Besondere Anforderungen an Offshore-Bauwerke - Teil 5:
Gewichtskontrolle während der Auslegung und Konstruktion (ISO/DIS 19901-5:2013)
Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures
en mer - Partie 5: Contrôle des poids durant la conception et la fabrication (ISO/DIS
19901-5:2013)
Ta slovenski standard je istoveten z: prEN ISO 19901-5
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
oSIST prEN ISO 19901-5:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 19901-5:2014

---------------------- Page: 2 ----------------------
oSIST prEN ISO 19901-5:2014
DRAFT INTERNATIONAL STANDARD
ISO/DIS 19901-1
ISO/TC 67/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:
2013-08-22 2014-01-22
Petroleum and natural gas industries — Specific
requirements for offshore structures —
Part 1:
Metocean design and operating considerations
Industries du pétrole et du gaz naturel — Exigences spécifiques relatives aux structures en mer —
Partie 1: Dispositions océano-météorologiques pour la conception et l’exploitation
[Revision of first edition (ISO 19901-1:2005)]
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
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ii © ISO 2013 – All rights reserved

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Contents Page
Foreword . ix
Introduction . xi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 9
4.1 Symbols . 9
4.2 Abbreviated terms . 12
5 Determining the relevant metocean parameters . 12
5.1 General . 12
5.2 Expert development of metocean criteria . 13
5.3 Selecting appropriate parameters for determining design actions and action effects . 13
5.4 The metocean database . 14
5.5 Storm types in a region . 14
5.6 Directionality . 15
5.7 Extrapolation to extreme and abnormal conditions . 15
5.8 Metocean parameters for fatigue assessments . 15
5.9 Metocean parameters for short-term activities . 16
5.10 Metocean parameters for medium-term activities . 17
6 Water depth, tides and storm surges . 17
6.1 General . 17
6.2 Tides . 18
6.3 Storm surges . 18
6.4 Extreme water level . 18
7 Wind . 19
7.1 General . 19
7.2 Wind actions and action effects . 20
7.3 Wind profile and time-averaged wind speed . 21
7.4 Wind spectra . 21
8 Waves . 21
8.1 General . 21
8.2 Wave actions and action effects . 22
8.3 Sea states — Spectral waves . 23
8.3.1 Wave spectrum . 23
8.3.2 Directional spreading . 23
8.3.3 Wave periods . 23
8.3.4 Wave kinematics — Velocities and accelerations . 23
8.4 Regular (periodic) waves . 24
8.4.1 General . 24
8.4.2 Wave period . 24
8.4.3 Wave kinematics — Velocities and accelerations . 24
8.4.4 Intrinsic, apparent and encounter wave periods . 24
8.5 Maximum height of an individual wave for long return periods . 25
8.6 Linear wave models . 25
8.7 Wave crest elevation . 26
9 Currents . 26
9.1 General . 26
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9.2 Current velocities. 26
9.3 Current profile . 27
9.4 Current profile stretching . 27
9.5 Current blockage . 27
10 Other environmental factors . 27
10.1 Marine growth . 27
10.2 Tsunamis . 28
10.3 Seiches . 28
10.4 Sea ice and icebergs . 28
10.5 Snow and ice accretion . 29
10.6 Miscellaneous . 29
11 Collection of metocean data . 29
11.1 General . 29
11.2 Common requirements . 30
11.2.1 General . 30
11.2.2 Instrumentation . 30
11.3 Meteorology . 30
11.3.1 General . 30
11.3.2 Weather observation and reporting for helicopter operations . 30
11.3.3 Weather observation and reporting for weather forecasting services . 31
11.3.4 Weather observation and reporting for climatological purposes . 32
11.4 Oceanography . 32
11.4.1 General . 32
11.4.2 Measurements and observations . 32
11.5 Data quality control . 32
12 Information concerning the annexes . 33
12.1 Information concerning Annex A . 33
12.2 Information concerning the regional annexes . 33
Annex A (informative) Additional information and guidance. 34
A.1 Scope . 34
A.2 Normative references . 34
A.3 Terms and definitions . 34
A.4 Symbols and abbreviated terms . 34
A.5 Determining the relevant metocean parameters . 34
A.5.1 General . 34
A.5.2 Expert development of metocean criteria . 35
A.5.3 Selecting appropriate parameters for determining design actions or action effects . 36
A.5.4 The metocean database . 38
A.5.5 Storm types in a region . 40
A.5.6 Directionality . 40
A.5.7 Extrapolation to extreme or abnormal conditions . 40
A.5.8 Metocean parameters for fatigue assessments . 42
A.5.9 Metocean parameters for short-term activities . 43
A.6 Water depth, tides and storm surges . 44
A.6.1 General . 44
A.6.2 Tides . 44
A.6.3 Storm surge . 45
A.6.4 Extreme water level . 45
A.7 Wind . 45
A.7.1 General . 45
A.7.2 Wind actions and action effects . 46
A.7.3 Wind profile and time-averaged wind speed . 47
A.7.4 Wind spectra . 48
A.8 Waves . 50
A.8.1 General . 50
A.8.2 Wave actions and action effects . 53
A.8.3 Sea states — Spectral waves . 53
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A.8.4 Regular (periodic) waves . 60
A.8.5 Maximum height of an individual wave for long return periods . 66
A.8.6 Fully non-linear wave models . 67
A.8.7 Wave crest elevation . 67
A.9 Currents . 68
A.9.1 General . 68
A.9.2 Current velocities . 69
A.9.3 Current profile . 69
A.9.4 Current profile stretching . 70
A.9.5 Current blockage . 72
A.10 Other environmental factors . 73
A.10.1 Marine growth . 73
A.10.2 Tsunamis . 73
A.10.3 Seiches . 73
A.10.4 Sea ice and icebergs . 73
A.10.5 Snow and ice accretion . 74
A.10.6 Miscellaneous . 74
A.11 Collection of metocean data. 74
A.11.2 Common requirements . 75
A.11.3 Meteorology . 1
A.11.4 Oceanography . 1
A.11.5 Data quality control . 2
Annex B (informative) Northwest Europe . 3
B.1 Description of region . 3
B.2 Data sources . 3
B.3 Overview of regional climatology . 3
B.4 Water depth, tides and storm surges . 4
B.5 Winds . 4
B.6 Waves . 4
B.7 Currents . 4
B.8 Other environmental factors . 5
B.8.1 Marine growth . 5
B.8.2 Sea ice and icebergs . 5
B.8.3 Snow and ice accretion . 6
B.8.4 Air temperature, humidity, and visibility . 7
B.8.5 Sea water temperature and salinity . 7
B.9 Estimates of metocean parameters . 7
B.9.1 Extreme metocean parameters . 7
B.9.2 Long-term distributions of metocean parameters . 10
Annex C (informative) West coast of Africa . 13
C.1 Description of region . 13
C.2 Data sources . 13
C.3 Overview of regional climatology . 13
C.4 Water depth, tides and storm surges . 13
C.5 Winds . 14
C.6 Waves . 14
C.7 Currents . 15
C.8 Other environmental factors . 16
C.8.1 Marine growth . 16
C.8.2 Tsunamis . 16
C.8.3 Sea ice and icebergs . 16
C.8.4 Snow and ice accretion . 16
C.8.5 Air temperature, humidity, pressure and visibility . 16
C.8.6 Sea water temperature and salinity . 17
C.9 Estimates of metocean parameters . 17
C.9.1 Extreme metocean parameters . 17
C.9.2 Long-term distributions of metocean parameters . 20
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Annex D (informative) United States — Gulf of Mexico, coast of California and other US waters . 25
D.1 United States — Gulf of Mexico . 25
D.1.1 Description of region . 25
D.1.2 Data sources . 27
D.1.3 Overview of regional climatology . 28
D.1.4 Water depth, tides and storm surges . 30
D.1.5 Winds . 31
D.1.6 Waves .
...