EN ISO 13628-1:2005/A1:2010

SLOVENSKI STANDARD
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Petroleum and natural gas industries - Design and operation of subsea production
systems - Part 1: General requirements and recommendations - Amendment 1: Revised
Clause 6 (ISO 13628-1:2005/Amd 1:2010)
Erdöl- und Erdgasindustrie - Auslegung und Betrieb von Unterwasser-
Produktionssystemen - Teil 1: Allgemeine Anforderungen und Empfehlungen - Änderung
A1: Überarbeitung Abschnitt 6 (ISO 13628-1:2005/Amd 1:2010)
Industries du pétrole et du gaz naturel - Conception et exploitation des systèmes de
production immergés - Partie 1: Exigences générales et recommandations -
Amendement 1: Révision de l'Article 6 (ISO 13628-1:2005/Amd 1:2010)
Ta slovenski standard je istoveten z: EN ISO 13628-1:2005/A1:2010
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 13628-1:2005/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2010
ICS 75.180.10
English Version
Petroleum and natural gas industries - Design and operation of
subsea production systems - Part 1: General requirements and
recommendations - Amendment 1: Revised Clause 6 (ISO
13628-1:2005/Amd 1:2010)
Industries du pétrole et du gaz naturel - Conception et Erdöl- und Erdgasindustrie - Auslegung und Betrieb von
exploitation des systèmes de production immergés - Partie
Unterwasser-Produktionssystemen - Teil 1: Allgemeine
1: Exigences générales et recommandations - Anforderungen und Empfehlungen - Änderung A1:
Amendement 1: Révision de l'Article 6 (ISO 13628- Überarbeitung Abschnitt 6 (ISO 13628-1:2005/Amd 1:2010)
1:2005/Amd 1:2010)
This amendment A1 modifies the European Standard EN ISO 13628-1:2005; it was approved by CEN on 2 July 2010.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the CEN Management Centre or to any CEN member.

This amendment 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13628-1:2005/A1:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 13628-1:2005/A1:2010) 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 Amendment to the European Standard EN ISO 13628-1:2005 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by February 2011, and
conflicting national standards shall be withdrawn at the latest by February 2011.
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.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 13628-1:2005/Amd 1:2010 has been approved by CEN as a EN ISO 13628-1:2005/A1:2010
without any modification.
INTERNATIONAL ISO
STANDARD 13628-1
Second edition
2005-11-15
AMENDMENT 1
2010-08-15
Petroleum and natural gas industries —
Design and operation of subsea
production systems —
Part 1:
General requirements
and recommendations
AMENDMENT 1: Revised Clause 6
Industries du pétrole et du gaz naturel — Conception et exploitation
des systèmes de production immergés —
Partie 1: Exigences générales et recommandations
AMENDEMENT 1: Révision de l'Article 6

Reference number
ISO 13628-1:2005/Amd.1:2010(E)
©
ISO 2010
ISO 13628-1:2005/Amd.1:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 13628-1:2005/Amd.1:2010(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
Amendment 1 to ISO 13628-1:2005 was prepared by Technical Committee ISO/TC 67, Materials, equipment
and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling
and production equipment. The changes are made mainly to Clause 6, which has been amended with a
revised set of provisions that includes the general material design requirements and recommendations
applicable to the complete subsea production system.
ISO 13628-1:2005/Amd.1:2010(E)
Introduction
This amendment is based on ISO 13628-1:2005, Clause 6; EEMUA Publication 194:2004; several NORSOK
standards and many oil company and supplier material specifications.
This revised Clause 6 does not include detailed material requirements and recommendations, e.g. for
manufacturing and testing. Such information is included in the product-specific parts of this part of ISO 13628.
It is intended that there not be any duplication of this part of ISO 13628 with the other parts of ISO 13628,
whereas there can be overlap of material requirements between product-specific parts. In case of conflict
between this part of ISO 13628 and product specific parts, it is intended that the latter take precedence.

iv © ISO 2010 – All rights reserved

ISO 13628-1:2005/Amd.1:2010(E)

Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 1:
General requirements and recommendations
AMENDMENT 1: Revised Clause 6
Page iii, Contents:
Replace the list of subclauses for Clause 6 with the following.
6 Materials and corrosion protection
6.1 General principals
6.2 Corrosivity evaluation
6.3 Corrosion control
6.4 Materials selection
6.5 Mechanical properties and material usage limitations
Page 1, Clause 2:
Add the following normative references:
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substrates after overall removal of previous coatings. Informative supplement to part 1:
Representative photographic examples of the change of appearance imparted to steel when blast-cleaned
with different abrasives
ISO 8503 (all parts), Preparation of steel substrates before application of paints and related products —
Surface roughness characteristics of blast-cleaned steel substrates
ISO 9588, Metallic and other inorganic coatings — Post-coating treatments of iron or steel to reduce the risk
of hydrogen embrittlement
ISO 12944 (all parts), Paints and varnishes — Corrosion protection of steel structures by protective paint
systems
1)
ISO 15156 (all parts) , Petroleum and natural gas industries — Materials for use in H S-containing
environments in oil and gas production

[41]
1) ISO 15156 (all parts) was adopted by NACE as NACE MR0175/ISO 15156 .
ISO 13628-1:2005/Amd.1:2010(E)
ISO 23936-1, Petroleum, petrochemical and natural gas industries — Non-metallic materials in contact with
media related to oil and gas production — Part 1: Thermoplastics
Page 3, 3.1:
Add the following terms and definitions after 3.1.12.
3.1.13
carbon steel
alloy of carbon and iron containing up to 2 % mass fraction carbon, up to 1,65 % mass fraction manganese
and residual quantities of other elements, except those intentionally added in specific quantities for
deoxidation (usually silicon and/or aluminium)
NOTE Carbon steels used in the petroleum industry usually contain less than 0,8 % mass fraction carbon.
[ISO 15156-1:2009, 3.3]
3.1.14
corrosion-resistant alloys
CRAs
alloys that are intended to be resistant to general and localized corrosion in oilfield environments that are
corrosive to carbon steels
NOTE This definition is in accordance with ISO 15156-1 and is intended to include materials such as stainless steels
with minimum 11,5 % mass fraction Cr, and nickel, cobalt and titanium base alloys. Other ISO documents can have other
definitions.
3.1.15
low-alloy steel
steels containing a total alloying element content of less than 5 % mass fraction, but more than that for carbon
steel
[12]
EXAMPLES AISI 4130, AISI 8630, ASTM A182 Grade F22 are examples of low alloy steels.
3.1.16
pitting resistance equivalent number
PREN
number developed to reflect and predict the pitting resistance of a stainless steel, based on the proportions of
Cr, Mo, W and N in the chemical composition of the alloy
NOTE This number is based on observed resistance to pitting of CRAs in the presence of chlorides and oxygen, e.g.
seawater, and is not directly indicative of the resistance to produced oil and gas environments.
F = w + 3,3(w + 0,5w ) + 16w
PREW Cr Mo W N
where
w is the mass fraction of chromium in the alloy, expressed as a percentage of the total composition;
Cr
w is the mass fraction of molybdenum in the alloy, expressed as a percentage of the total composition;
Mo
w is the mass fraction of tungsten in the alloy, expressed as a percentage of the total composition;
W
w is the mass fraction of nitrogen in the alloy, expressed as a percentage of the total composition.
N
3.1.17
sour service
service in an H S-containing (sour) fluid
NOTE In this part of ISO 13628, “sour service” refers to conditions where the H S content is such that restrictions as
specified by ISO 15156 (all parts) apply.
2 © ISO 2010 – All rights reserved

ISO 13628-1:2005/Amd.1:2010(E)
3.1.18
sweet service
service in an H S-free (sweet) fluid
3.1.19
type 316
austenitic stainless steel alloys of type UNS S31600/S31603
3.1.20
type 6Mo
austenitic stainless steel alloys with PREN W 40 and Mo alloying W 6,0 % mass fraction, and nickel alloys with
Mo content in the range 6 % mass fraction to 8 % mass fraction
EXAMPLES UNS S31254, N08367 and N08926 alloys.
3.1.21
type 22Cr duplex
ferritic/austenitic stainless steel alloys with 30 u PREN u 40 and Mo u 2,0 % mass fraction
EXAMPLES UNS S31803 and S32205 steels.
3.1.22
type 25Cr duplex
ferritic/austenitic stainless steel alloys with 40 u PREN u 45
EXAMPLES UNS S32750 and S32760 steels.
Page 3, 3.2:
Add the following abbreviated terms.
CRA corrosion-resistant alloy
HB Brinell hardness
HIC hydrogen induced cracking
HRC Rockwell hardness C scale
MIC microbiologically influenced corrosion
SWC stepwise cracking
Page 42:
Replace Clause 6 with the following.
6 Materials selection and corrosion protection
6.1 General principles
The materials selection process shall take into account all statutory and regulatory requirements. The project
design criteria (e.g. design lifetime, inspection and maintenance philosophy, safety and environmental profiles,
operational reliability and specific project requirements), should be considered.
Robust materials selection should be made to ensure operation reliability throughout the design life as the
access for the purposes of maintenance and repair is limited and costly.
ISO 13628-1:2005/Amd.1:2010(E)
Materials selection should be based on an evaluation of corrosion and erosion as described within this clause.
All internal and external media should be considered for the entire design life. Degradation mechanisms not
specially covered in this part of ISO 13628 (e.g. fatigue, corrosion-fatigue, wear and galling), should be
considered for relevant components and conditions.
Mechanical properties and usage limitations for different material grades shall comply with applicable design
code requirements and guidelines given in 6.5. The material weldability should also be considered to avoid
fabrication defects.
Cost and material availability have a significant influence on materials selection, and evaluations should be
made to support the final selection.
[43]
NOTE If life-cycle cost evaluations are considered appropriate, then the methodology described in ISO 15663-2 can
be helpful.
The end user shall specify how to implement the requirements and guidelines of Clause 6, and specify the
design conditions. The scope of work in relevant contracts defines the responsible party for materials selection
for the facility and/or equipment. Alternatives to the requirements in Clause 6 may be utilized when agreed
between the user/purchaser and the supplier/manufacturer to suit specific field requirements. The intention is
to facilitate and complement the material selection process rather than to replace individual engineering
judgment and, where requirements are non-mandatory, to provide positive guidance for the selection of an
optimal solution.
Similarly, the normative references in this part of ISO 13628 may be replaced by other recognized equivalent
standards when agreed between the user/purchaser and the supplier/manufacturer.
Some common oilfield alloys are described in Table 1. This is, however, not meant to be an all-inclusive list
and other alloys may be used.
6.2 Corrosivity evaluation
6.2.1 Design premise
The corrosivity evaluation shall consider all media exposed to the system components including the stages of
transportation, storage, installation, testing and preservation. This typically includes
⎯ seawater,
⎯ produced fluids,
⎯ drilling and completion fluids,
⎯ hydraulic control fluid,
⎯ chemicals such as inhibitors, well stimulation fluids, etc.
It is recommended that a compatibility matrix be developed showing to which media all components are
exposed.
6.2.2 Internal corrosion
6.2.2.1 Hydrocarbon systems
A corrosion evaluation should be carried out to determine the general corrosivity of the internal fluids for the
materials under consideration.
4 © ISO 2010 – All rights reserved

ISO 13628-1:2005/Amd.1:2010(E)
The corrosion evaluation should be based on a corrosion prediction model, or on relevant test or field
corrosion data agreed with the end user. General and localized corrosion of carbon steel takes place over
time, and the anticipated corrosion rate should be calculated for the operating conditions.
For wet hydrocarbon systems made of carbon and low-alloy steel or CRA, the corrosion mechanisms
indicated in Table 1 should be evaluated. Details on mechanisms and parameters for consideration are given
[38]
in ISO 21457 .
Table 1 — Materials prone to corrosion mechanisms in hydrocarbon systems
Corrosion mechanism Carbon and low-alloy ste
...