EN ISO 13679:2019

SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN ISO 13679:2007
Industrija za proizvodnjo nafte in zemeljskega plina - Postopki za preskušanje
spojev za zaščitne in proizvodne (dvižne) cevi (ISO 13679:2019)
Petroleum and natural gas industries - Procedures for testing casing and tubing
connections (ISO 13679:2019)
Industries du pétrole et du gaz naturel - Procédures de test des connexions pour tubes
de cuvelage et de production (ISO 13679:2019)
Ta slovenski standard je istoveten z: EN ISO 13679:2019
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
75.200 Oprema za skladiščenje Petroleum products and
nafte, naftnih proizvodov in natural gas handling
zemeljskega plina equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 13679
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 75.200; 75.180.10 Supersedes EN ISO 13679:2006
English Version
Petroleum and natural gas industries - Procedures for
testing casing and tubing connections (ISO 13679:2019)
Industries du pétrole et du gaz naturel - Procédures de
test des connexions pour tubes de cuvelage et de
production (ISO 13679:2019)
This European Standard was approved by CEN on 24 November 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13679:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 13679:2019) 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 February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 13679:2006.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 13679:2019 has been approved by CEN as EN ISO 13679:2019 without any modification.

INTERNATIONAL ISO
STANDARD 13679
Second edition
2019-07
Petroleum and natural gas
industries — Procedures for testing
casing and tubing connections
Industries du pétrole et du gaz naturel — Procédures de test des
connexions pour tubes de cuvelage et de production
Reference number
ISO 13679:2019(E)
©
ISO 2019
ISO 13679:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 13679:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Supplements to API RP 5C5:2017 . 1
4.1 General requirements . 1
4.2 Scope . 2
4.3 Normative references . 2
4.4 Nominal connection performance envelope . 2
4.5 Anisotropic reference curves . 2
4.6 Near-yield loading effects . 2
4.7 Test report . 3
Bibliography . 4
ISO 13679:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore
structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 5, Casing, tubing
and drill pipe.
This second edition cancels and replaces the first edition (ISO 13679:2002), which has been technically
revised.
This document supplements API RP 5C5:2017.
The technical requirements of this document and API Recommended Practice (RP) 5C5 used to be
identical. In the meantime API RP 5C5 has been technically revised as API RP 5C5:2017. The purpose of
this edition of ISO 13679 is to bring it up to date, by referencing the current edition of API RP 5C5 and
including supplementary content.
The main changes compared to the previous edition of ISO 13679 are as follows:
— new specimen geometries, e.g. XH-XL have been added;
— all Connection Assessment Level(s) test requirements and sequences have been revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

ISO 13679:2019(E)
Introduction
This document is part of a process to provide reliable tubing and casing connections for the oil and
natural gas industry which are fit for purpose. It has been developed based on improvements to
ISO 13679:2002 and proprietary test procedures, with input from leading users, manufacturers and
testing consultants from around the world. This document represents the knowledge of many years of
testing and qualification experiences, where many oil and gas industry manufacturers and operators
have utilized the testing protocol to improve connection performance with objective evidence, i.e.
physical testing.
The experimental validation of connection test load envelope and failure limit loads is relevant to
design of tubing and casing for the oil and natural gas industries. Tubing and casing are subject to loads
which include internal pressure, external pressure, axial tension, axial compression, bending torsion,
transverse forces and temperature changes. The magnitude and combination of these loads result
in various pipe body and connection failure modes. Although pipe body test and limit loads are well
understood in general, the same cannot be stated for the connection. These failure modes and loads are
generally different and often less than that of the pipe. Consequently, experimental validation is needed.
The validation of test and limit loads implies the testing of performance parameters to these defined
loads at the extremes. Testing at the extremes of the performance parameters assures that the
production population that falls within these limits meets or exceeds the performance of the test
population. Thread connection performance parameters include dimensional tolerances, mechanical
properties, surface treatment, make-up torque and the type and amount of thread compound. For
typical proprietary connections, worst-case tolerances are known and defined in this document. For
other connections designs, the worst-case tolerance combinations need to be determined.
Users of this document should be aware that different physical testing requirements might be needed
for individual well applications. This document is not intended to inhibit a vendor from offering, or a
purchaser from accepting, alternate equipment or engineering solutions for the individual application.
This is particularly applicable when there is innovative or developing technology. Where an alternative
is offered, it is the responsibility of
...