EN ISO 19901-7:2013

Petroleum and natural gas industries - Specific requirements for offshore structures - Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units (ISO 19901-7:2013)

ISO 19901-7:2013 specifies methodologies for
- the design, analysis and evaluation of stationkeeping systems for floating structures used by the oil and gas industries to support production, storage, drilling, well intervention and production, production and storage, drilling, well intervention, production and storage, and
- the assessment of stationkeeping systems for site-specific applications of mobile offshore units (e.g. mobile offshore drilling units, construction units, and pipelay units).
ISO 19901-7:2013 is applicable to the following types of stationkeeping systems, which are either covered directly in ISO 19901-7:2013 or through reference to other guidelines:
- spread moorings (catenary, taut-line and semi-taut-line moorings);
- single point moorings, anchored by spread mooring arrangements;
- dynamic positioning systems;
- thruster-assisted moorings.
Descriptions of the characteristics and of typical components of these systems are given in an informative annex.
The requirements of ISO 19901-7:2013 mainly address spread mooring systems and single point mooring systems with mooring lines composed of steel chain and wire rope. ISO 19901-7:2013 also provides guidance on the application of the methodology to synthetic fibre rope mooring systems, and includes additional requirements related to the unique properties of synthetic fibre ropes.
ISO 19901-7:2013 is applicable to single anchor leg moorings (SALMs) and other single point mooring systems (e.g. tower soft yoke systems) only to the extent to which the requirements are relevant.
ISO 19901-7:2013 is not applicable to the vertical moorings of tension leg platforms (TLPs).

Erdöl- und Erdgasindustrie - Spezielle Anforderungen an Offshore-Anlagen - Teil 7: Betriebssysteme für das Positionshalten schwimmender Anlagen und mobiler Offshore-Einheiten (ISO 19901-7:2013)

Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures en mer - Partie 7: Systèmes de maintien en position des structures en mer flottantes et des unités mobiles en mer (ISO 19901-7:2013)

L'ISO 19901-7:2013 spécifie des méthodologies pour:
la conception, l'analyse et l'évaluation des systèmes de maintien en position des structures flottantes que les industries du pétrole et du gaz utilisent pour la production, le stockage, le forage, l'intervention sur un puits et la production, la production et le stockage, le forage, l'intervention sur un puits et la production et le stockage, et
l'évaluation des systèmes de maintien en position pour les applications spécifiques au site des unités mobiles en mer (unités mobiles de forage en mer, unités de construction et unités de pose de pipelines, par exemple).
L'ISO 19901-7:2013 est applicable aux types de systèmes suivants de maintien en position qui sont couverts soit directement dans l'ISO 19901-7:2013, soit par référence à d'autres lignes directrices:
ancrages étalés (ancrages caténaires, tendus et semi-tendus);
ancrages en un seul point, ancrés par des systèmes d'ancrage étalés;
systèmes de positionnement dynamique;
ancrages assistés par des propulseurs.
Une annexe informative décrit les caractéri      stiques et les composants classiques de ces systèmes.
Les exigences de l'ISO 19901-7:2013 concernent principalement les systèmes d'ancrage étalés et en un seul point dont les lignes d'ancrage sont composées de chaînes et de câbles en acier. L'ISO 19901-7:2013 fournit également des lignes directrices pour l'application de la méthodologie aux systèmes d'ancrage à cordage en fibres synthétiques, ainsi que des exigences supplémentaires liées aux propriétés spécifiques de ces cordages en fibres synthétiques.
L'ISO 19901-7:2013 s'applique aux ancrages sur point unique avec une seule tige d'ancre (SALM) et aux autres systèmes d'ancrage en un seul point (systèmes d'ancrage souple pour tours fixes, par exemple), uniquement dans la mesure où les exigences sont pertinentes pour ces systèmes.
L'ISO 19901-7:2013 ne s'applique pas aux ancrages verticaux des plates-formes à ancrage tendu (TLP).

Industrija za predelavo nafte in zemeljskega plina - Posebne zahteve za naftne ploščadi - 7. del: Sistemi za vzdrževanje postaj na plavajočih strukturah in premičnih enotah (ISO 19901-7:2013)

Ta del standarda ISO 19901 določa metodologije za:
a) načrtovanje, analizo in vrednotenje sistemov za vzdrževanje postaj na plavajočih strukturah, ki se uporabljajo vi industriji za predelavo nafte in zemeljskega plina za podporo
1. proizvodnje,
2. skladiščenja,
3. vrtanja, intervencij in proizvodnje v vrtinah,
4. proizvodnje in skladiščenja,
5. vrtanja, intervencij, proizvodnje in skladiščenja v vrtinah, ter
b) oceno vzdrževalnih sistemov za uporabo glede na lokacijo na premičnih priobalnih enot (npr. premične plavajoče vrtalne ploščadi, gradbene enote in enote za polaganje cevi). Večina vzdrževalnih sistemov, ki se uporabljajo pri razredu plavajočih struktur, zajetih v točki a), imenujemo »stalni sistemi za zasidranje«; zanje velja ta del standarda ISO 19901 za vse vidike življenjskega cikla, pri čemer so vključene zahteve v zvezi z izdelavo komponent za zasidranje ter upoštevana možnost inšpekcijskih pregledov med obratovanjem. Večina vzdrževalnih sistemov, ki se uporabljajo pri premičnih priobalnih enotah (ta razred zajema točka b)), se imenuje »premični sistemi za zasidranje«. V tem delu standarda ISO 19901 se izraz »plavajoča struktura«, ki je včasih skrajšan v »struktura«, včasih uporablja kot splošen izraz za katerega koli člana razredov a) in b). Ta del standarda ISO 19901 velja za naslednje vrste vzdrževalnih sistemov, ki so neposredno zajete v tem delu standarda ISO 19901 ali pa so zajete prek sklicevanja na druge smernice:
– razširitev zasidranja (vozna mreža, napeta linija in polnapeta linija);
– enotočkovno zasidranje z razširjenimi prilagoditvami;
– sistemi dinamičnega pozicioniranja;
– motorno podprto zasidranje.
Opisi lastnosti in tipičnih komponent teh sistemov so navedeni v dodatku A. Zahteve tega dela standarda ISO 19901 obravnavajo predvsem razširjene sisteme zasidranja in enotočkovne sisteme zasidranja z linijami, sestavljenimi iz jeklene verige in žičnate vrvi. Ta del standarda ISO 19901 zagotavlja tudi smernice za uporabo metodologije za sisteme zasidranja z vrvmi iz sintetičnih vlaken in vključuje dodatne zahteve v zvezi z edinstvenimi lastnostmi vrvi iz sintetičnih vlaken. Ta del standarda ISO 19901 velja za SALM in druge enotočkovne sisteme zasidranja (npr. sistemi TSY) samo do mere, do katere so zadevne zahteve še primerne. Ta del standarda ISO 19901 ne velja za navpično zasidranje TLP. V tem delu standarda ISO 19901 opisana metodologija določa zbirko skladnih orodij za analizo, ki se v kombinaciji z razumevanjem meteoroloških in oceanografskih pogojev glede na lokacijo, lastnostmi obravnavane plavajoče konstrukcije in drugih dejavnikov lahko uporabljajo za določitev primernosti vzdrževalnih sistemov, da se zadovoljijo funkcionalne zahteve tega dela standarda ISO 19901.

General Information

• Status: Published
• Publication Date: 30-Apr-2013
• Withdrawal Date: 29-Nov-2013
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Drafting Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-May-2013
• Completion Date: 01-May-2013
• Ref Project: SIST EN ISO 19901-7:2013 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units (ISO 19901-7:2013)

Relations

• Replaces: EN ISO 19901-7:2005 - Petroleum and natural gas industries - Specific requirements for offshore structures - Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units (ISO 19901-7:2005)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2013
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SIST EN ISO 19901-7:2006
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SORãþDGLGHO6LVWHPL]DY]GUåHYDQMHSRVWDMQDSODYDMRþLKVWUXNWXUDKLQ
SUHPLþQLKHQRWDK,62
Petroleum and natural gas industries - Specific requirements for offshore structures -
Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units
(ISO 19901-7:2013)
Erdöl- und Erdgasindustrie - Spezielle Anforderungen an Offshore-Bauwerke - Teil 7:
Betriebssysteme für die Stationsunterhalte schwimmender Anlagen und mobiler Offshore
-Einheiten (ISO 19901-7:2013)
Industries du pétrole et du gaz naturel - Exigences spécifiques relatives aux structures
en mer - Partie 7: Systèmes de maintien en position des structures en mer flottantes et
des unités mobiles en mer (ISO 19901-7:2013)
Ta slovenski standard je istoveten z: EN ISO 19901-7:2013
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 19901-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2013
ICS 75.180.10 Supersedes EN ISO 19901-7:2005
English Version
Petroleum and natural gas industries - Specific requirements for
offshore structures - Part 7: Stationkeeping systems for floating
offshore structures and mobile offshore units (ISO 19901-
7:2013)
Industries du pétrole et du gaz naturel - Exigences Erdöl- und Erdgasindustrie - Spezielle Anforderungen an
spécifiques relatives aux structures en mer - Partie 7: Offshore-Anlagen - Teil 7: Betriebssysteme für das
Systèmes de maintien en position des structures en mer Positionshalten schwimmender Anlagen und mobiler
flottantes et des unités mobiles en mer (ISO 19901-7:2013) Offshore-Einheiten (ISO 19901-7:2013)
This European Standard was approved by CEN on 5 January 2013.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19901-7:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 19901-7:2013) 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 AFNOR.
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 November 2013, and conflicting national standards shall be withdrawn
at the latest by November 2013.
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 19901-7:2005.
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 19901-7:2013 has been approved by CEN as EN ISO 19901-7:2013 without any modification.
INTERNATIONAL ISO
STANDARD 19901-7
Second edition
2013-05-01
Petroleum and natural gas industries —
Specific requirements for offshore
structures —
Part 7:
Stationkeeping systems for floating
offshore structures and mobile offshore
units
Industries du pétrole et du gaz naturel — Exigences spécifiques
relatives aux structures en mer —
Partie 7: Systèmes de maintien en position des structures en mer
flottantes et des unités mobiles en mer

Reference number
ISO 19901-7:2013(E)
©
ISO 2013
ISO 19901-7:2013(E)
©  ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 19901-7:2013(E)
Contents Page
Foreword . v
Introduction . vii
1  Scope . 1
2  Normative references . 2
3  Terms and definitions . 2
4  Symbols and abbreviated terms . 7
4.1  Symbols . 7
4.2  Abbreviated terms . 8
5  Overall considerations . 9
5.1  Functional requirements. 9
5.2  Safety requirements . 9
5.3  Planning requirements . 10
5.4  Inspection and maintenance requirements . 10
5.5  Analytical tools . 10
6  Design requirements . 10
6.1  Exposure levels . 10
6.2  Limit states . 11
6.3  Defining design situations . 11
6.4  Design situations . 12
7  Actions. 14
7.1  General . 14
7.2  Site-specific data requirements . 14
7.3  Environmental actions on mooring lines . 15
7.4  Indirect actions . 16
8  Mooring analysis . 18
8.1  Basic considerations . 18
8.2  Floating structure offset . 19
8.3  Floating structure response . 20
8.4  Mooring line response . 25
8.5  Line tension . 26
8.6  Line length and geometry constraints . 26
8.7  Anchor forces . 27
8.8  Typical mooring configuration analysis and assessment . 27
8.9  Thruster-assisted moorings . 28
8.10  Transient analysis of floating structure motions . 29
9  Fatigue analysis . 30
9.1  Basic considerations . 30
9.2  Fatigue resistance . 30
9.3  Fatigue analysis procedure . 32
10  Design criteria . 37
10.1  Floating structure offset . 37
10.2  Line tension limit . 38
10.3  Grounded line length . 38
10.4  Anchoring systems . 38
10.5  Fatigue safety factor . 41
10.6  Corrosion and wear . 41
10.7  Clearances . 42
ISO 19901-7:2013(E)
10.8  Supporting structures .42
11  Mooring hardware .42
11.1  Mooring line components .42
11.2  Winching equipment .
...