Petroleum and natural gas industries - Steel drill pipe (ISO 11961:2008)

This International Standard specifies the technical delivery conditions for steel drill pipes with upset pipe body ends and weld-on tool joints for use in drilling and production operations in petroleum and natural gas industries for three Product Specification Levels (PSL-1, PSL-2 and PSL-3). The requirements for PSL-1 are the basis of this International Standard. The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3 are contained in Annex G. The list of drill pipes, main dimensions and masses covered by this International Standard are specified in SI units in Table A.1. Table C.1 provides the same information given in Table A.1 but uses USC units. A typical drill pipe configuration, main elements and lengths are shown in Figure B.1. This International Standard covers grades of drill pipe as follows: Grade E drill pipe High strength grades of drill pipe, Grades X, G and S.

Erdöl- und Erdgasindustrie - Stahlrohre zur Verwendung als Bohrrohre - Anforderungen (ISO 11961:2008)

Industries du pétrole et du gaz naturel - Tiges de forage en acier (ISO 11961:2008)

L'ISO 11961:2008 spécifie les conditions techniques de livraison des tiges de forage en acier à extrémités de tubes refoulées et joints de tige soudés, destinées à être utilisées dans les opérations de forage et de production dans les industries du pétrole et du gaz naturel pour trois niveaux de spécification de produit (PSL‑1, PSL‑2 et PSL‑3). Les exigences relatives au niveau PSL-1 servent de base à la présente Norme internationale. Les exigences définissant différents niveaux d'exigences techniques normalisées pour PSL-2 et PSL-3 sont indiquées.
L'ISO 11961:2008 couvre les classes suivantes de tiges de forage: tiges de forage de classe E et tiges de forage à haute limite élastique de classes X, G et S.
Une configuration de tige de forage type est présentée, avec ses principaux éléments et ses longueurs. Les dimensions principales et les masses associées aux différentes classes de tiges de forage sont données en unités SI et en unités USC.
L'ISO 11961:2008 peut également être utilisée pour les tiges de forage comportant des raccords de tiges non spécifiés par des normes ISO ou API.
Par accord entre l'acheteur et le fabricant, l'ISO 11961:2008 peut également être appliquée à d'autres dimensions de corps de tige de forage et/ou de raccords de tiges. L'ISO 11961:2008 énumère des exigences supplémentaires pouvant éventuellement être convenues entre l'acheteur et le fabricant pour les essais, la vérification des performances et les contrôles non destructifs.
L'ISO 11961:2008 ne tient pas compte des caractéristiques de performance.

Industrija za predelavo nafte in zemeljskega plina - Jeklene vrtalne cevi (ISO 11961:2008)

General Information

Status
Withdrawn
Publication Date
19-Nov-2008
Withdrawal Date
28-Nov-2018
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
29-Nov-2018
Due Date
22-Dec-2018
Completion Date
29-Nov-2018

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SLOVENSKI STANDARD
SIST EN ISO 11961:2009
01-januar-2009
1DGRPHãþD
SIST EN ISO 11961:2000
Industrija za predelavo nafte in zemeljskega plina - Jeklene vrtalne cevi (ISO
11961:2008)
Petroleum and natural gas industries - Steel drill pipe (ISO 11961:2008)
Erdöl- und Erdgasindustrie - Stahlrohre zur Verwendung als Bohrrohre - Anforderungen
(ISO 11961:2008)
Industries du pétrole et du gaz naturel - Tiges de forage en acier (ISO 11961:2008)
Ta slovenski standard je istoveten z: EN ISO 11961:2008
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
77.140.75 Jeklene cevi in cevni profili Steel pipes and tubes for
za posebne namene specific use
SIST EN ISO 11961:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11961:2009

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SIST EN ISO 11961:2009
EUROPEAN STANDARD
EN ISO 11961
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2008
ICS 75.180.10; 77.140.75 Supersedes EN ISO 11961:1996
English Version
Petroleum and natural gas industries - Steel drill pipe (ISO
11961:2008)
Industries du pétrole et du gaz naturel - Tiges de forage en Erdöl- und Erdgasindustrie - Stahlrohre zur Verwendung als
acier (ISO 11961:2008) Bohrrohre - Anforderungen (ISO 11961:2008)
This European Standard was approved by CEN on 18 October 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11961:2008: E
worldwide for CEN national Members.

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SIST EN ISO 11961:2009
EN ISO 11961:2008 (E)
Contents Page
Foreword.3

2

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SIST EN ISO 11961:2009
EN ISO 11961:2008 (E)
Foreword
This document (EN ISO 11961:2008) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum 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 May 2009, and conflicting national standards shall be withdrawn at the
latest by May 2009.
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 11961:1996.
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, 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 11961:2008 has been approved by CEN as a EN ISO 11961:2008 without any modification.

3

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SIST EN ISO 11961:2009

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SIST EN ISO 11961:2009

INTERNATIONAL ISO
STANDARD 11961
Second edition
2008-11-01


Petroleum and natural gas industries —
Steel drill pipe
Industries du pétrole et du gaz naturel — Tiges de forage en acier





Reference number
ISO 11961:2008(E)
©
ISO 2008

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
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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
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ii © ISO 2008 – All rights reserved

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
Contents Page
Foreword. v
Introduction . vi
1 Scope . 1
2 Conformance. 1
2.1 Dual citing of normative references. 1
2.2 Units of measurement . 2
3 Normative references . 2
4 Terms, definitions, symbols and abbreviated terms. 4
4.1 Terms and definitions. 4
4.2 Symbols and abbreviated terms . 8
5 Information to be supplied when placing orders for drill-pipe . 10
6 Requirements for drill-pipe. 11
6.1 General. 11
6.2 Dimensions, masses and connections. 11
6.3 Material requirements. 12
6.4 Process of manufacture for drill-pipe. 14
6.5 Traceability . 15
6.6 Inspection and testing — General. 15
6.7 Testing of welds. 16
6.8 Tensile test . 16
6.9 Hardness test . 17
6.10 Charpy V-notch impact test . 18
6.11 Transverse side-bend test . 19
6.12 Imperfections and defects in drill-pipe. 19
6.13 Visual inspection of the drill-pipe weld zone.20
6.14 Non-destructive examination of the weld zone . 20
6.15 Marking of drill-pipe. 22
6.16 Minimum facility requirements for drill-pipe manufacturers . 23
6.17 Documentation requirements of drill-pipe . 24
7 Requirements for drill-pipe body . 24
7.1 Information to be supplied when placing orders for drill-pipe bodies. 24
7.2 Dimensional and mass requirements.25
7.3 Material requirements. 27
7.4 Process of manufacture. 28
7.5 Traceability . 28
7.6 Inspection and testing — General. 29
7.7 Testing of chemical composition. 29
7.8 Tensile tests . 30
7.9 Charpy V-notch impact tests . 31
7.10 Drill-pipe-body wall thickness . 32
7.11 Drill-pipe-body length. 32
7.12 Internal upset . 32
7.13 Internal profile . 32
7.14 Straightness . 33
7.15 Upset alignment. 33
7.16 Mass determination . 33
7.17 Imperfections and defects of drill-pipe body. 33
7.18 Visual inspection of drill-pipe body. 34
© ISO 2008 – All rights reserved iii

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
7.19 Non-destructive examination. 34
7.20 Marking. 38
7.21 Minimum facility requirements for drill-pipe-body manufacturer. 39
7.22 Documentation requirements . 39
8 Requirements for tool joints . 40
8.1 Information to be supplied when placing orders for tool joints. 40
8.2 Dimensional requirements. 41
8.3 Material requirements. 41
8.4 Process of manufacture . 42
8.5 Traceability . 43
8.6 Inspection and testing — General. 43
8.7 Testing of chemical composition . 43
8.8 Tensile tests. 44
8.9 Hardness tests. 45
8.10 Charpy V-notch impact tests . 45
8.11 Imperfections and defects. 47
8.12 Non-destructive examination. 47
8.13 Marking. 48
8.14 Minimum facility requirements for tool-joint manufacturers. 48
8.15 Documentation requirements for tool joints . 49
Annex A (normative) Tables in SI units. 51
Annex B (normative) Figures in SI (USC) units . 69
Annex C (normative) Tables in USC units . 83
Annex D (normative) Purchaser inspection. 101
Annex E (informative) Supplementary requirements. 102
Annex F (informative) Procedures used to convert from USC units to SI units for drill-pipe . 105
Annex G (normative) Product specification levels . 109
Annex H (informative) API monogram. 111
Bibliography . 112

iv © ISO 2008 – All rights reserved

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SIST EN ISO 11961:2009
ISO 11961:2008(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.
ISO 11961 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 11961:1996), which has been extensively
technically revised.
It is the intention of ISO/TC 67 that either this edition or the previous edition of ISO 11961 be applicable, at the
option of the purchaser (as defined in 4.1.31), for a period of six months from the first day of the calendar
quarter immediately following the date of publication of this edition, after which period the previous edition will
no longer be applicable.
© ISO 2008 – All rights reserved v

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
Introduction
This International Standard is based on API Spec 5D and API Spec 7.
Users of this International Standard should be aware that further or differing requirements may be needed for
individual applications. This International Standard is not intended to inhibit a vendor from offering, or the
purchaser from accepting, alternative equipment or engineering solutions for the individual application. This
may be particularly applicable where there is innovative or developing technology. Where an alternative is
offered, the vendor should identify any variations from this International Standard and provide details.
This International Standard includes provisions of various natures. These are identified by the use of certain
verbal forms:
a) SHALL is used to indicate that a provision is MANDATORY;
b) SHOULD is used to indicate that a provision is not mandatory, but RECOMMENDED as good practice;
c) MAY is used to indicate that a provision is OPTIONAL.

vi © ISO 2008 – All rights reserved

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SIST EN ISO 11961:2009
INTERNATIONAL STANDARD ISO 11961:2008(E)

Petroleum and natural gas industries — Steel drill pipe
1 Scope
This International Standard specifies the technical delivery conditions for steel drill-pipes with upset pipe-body
ends and weld-on tool joints for use in drilling and production operations in petroleum and natural gas
industries for three product specification levels (PSL-1, PSL-2 and PSL-3). The requirements for PSL-1 form
the basis of this International Standard. The requirements that define different levels of standard technical
requirements for PSL-2 and PSL-3 are in Annex G.
This International Standard covers the following grades of drill-pipe:
⎯ grade E drill-pipe;
⎯ high-strength grades of drill-pipe, grades X, G and S.
A typical drill-pipe configuration is given, showing main elements and lengths (see Figure B.1). The main
dimensions and masses of the grades of drill-pipe are given in both SI units (see Table A.1) and in USC units
(see Table C.1).
This International Standard can also be used for drill-pipe with tool joints not specified by ISO or API
standards.
By agreement between purchaser and manufacturer, this International Standard can also be applied to other
drill-pipe body and/or tool-joint dimensions. This International Standard lists supplementary requirements that
can optionally be agreed between purchaser and manufacturer, for testing, performance verification and
non-destructive examination (see Annex E).
This International Standard does not consider performance properties.
NOTE 1 In this International Standard, drill-pipe is designated by label 1, label 2, grade of material (E, X, G and S),
upset type and type of rotary shouldered connection. Designations are used for the purpose of identification in ordering.
NOTE 2 Reference can be made to ISO 10424-2 or API Spec 7-2 for the detailed requirements for the threading of
drill-pipe tool joints.
NOTE 3 Reference can be made to API RP 7G for the performance properties of the drill-pipe.
2 Conformance
2.1 Dual citing of normative references
In the interests of world-wide application of this International Standard, Technical Committee ISO/TC 67 has
decided, after detailed technical analysis, that certain of the normative documents listed in Clause 3 and
prepared by ISO/TC 67 or another ISO Technical Committee are interchangeable in the context of the
relevant requirement with the relevant document prepared by the American Petroleum Institute (API), the
American Society for Testing and Materials (ASTM) and the American National Standards Institute (ANSI).
These latter documents are cited in the running text following the ISO reference and preceded by “or”, for
example “ISO XXXX or API YYYY”. Application of an alternative normative document cited in this manner will
lead to technical results different from the use of the preceding ISO reference. However, both results are
acceptable and these documents are thus considered interchangeable in practice.
© ISO 2008 – All rights reserved 1

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
2.2 Units of measurement
In this International Standard, data are expressed in both the International System (SI) of units and the United
States Customary (USC) system of units. Separate tables for data expressed in SI units and USC units are in
Annex A and Annex C, respectively. Figures are in Annex B and express data in both SI and USC units. For a
specific order item, it is intended that only one system of units be used, without combining data expressed in
the other system.
Products manufactured to specifications expressed in either of these unit systems shall be considered
equivalent and totally interchangeable. Consequently, compliance with the requirements of this International
Standard as expressed in one system provides compliance with requirements expressed in the other system.
For data expressed in the SI system, a comma is used as the decimal separator and a space as the
thousands separator. For data expressed in the USC system, a dot (on the line) is used as the decimal
separator and a space as the thousands separator.
In the text, data in SI units are followed by data in USC units in brackets.
NOTE The procedures used to convert from USC units to SI units are given in informative Annex F.
3 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 amendment) applies.
ISO 6506-1, Metallic materials — Brinell Hardness test — Part 1: Test method
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1:Test method (scales A, B, C, D, E, F, G, H,
K, N, T)
ISO 6892, Metallic materials — Tensile testing
ISO 7500-1, Metallic materials — Verification of static uni-axial testing machines — Part 1:
Tension/compression testing machines — Verification and calibration of the force-measuring system
ISO 9303, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Full
peripheral ultrasonic testing for the detection of longitudinal imperfections
ISO 9304, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Eddy
current testing for the detection of imperfections
ISO 9305, Seamless steel tubes for pressure purposes — Full peripheral ultrasonic testing for the detection of
transverse imperfections
ISO 9402, Seamless and welded (except submerged arc-welded) steel tubes for pressure purposes — Full
peripheral magnetic transducer/flux leakage testing of ferromagnetic steel tubes for the detection of
longitudinal imperfections
ISO 9513, Metallic materials — Calibration of extensometers used in uniaxial testing
ISO 9598, Seamless steel tubes for pressure purposes — Full peripheral magnetic transducer/flux leakage
testing of ferromagnetic steel tubes for the detection of transverse imperfections
ISO/TR 9769, Steel and iron — Review of available methods of analysis
2 © ISO 2008 – All rights reserved

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SIST EN ISO 11961:2009
ISO 11961:2008(E)
ISO/TR 10400, Petroleum and natural gas industries — Equations and calculations for the properties of
casing, tubing, drill-pipe and line pipe used as casing or tubing
ISO 10424-2, Petroleum and natural gas industries — Rotary drilling equipment — Part 2: Threading and
gauging of rotary shouldered thread connections
ISO 11484, Steel tubes for pressure purposes — Qualification and certification of non-destructive (NDT)
personnel
ISO 13665, Seamless and welded steel tubes for pressure purposes — Magnetic particle inspection of the
tube body for the detection of surface imperfections
API Spec 7-2, Specification for Threading and Gauging of Rotary Shouldered Thread Connections
API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits
ANSI/API 5C3, Bulletin on Formulas and Calculations for Casing, Tubing, Drill-pipe, and Line Pipe Properties
(including Supplement 1)
ASME Boiler and Pressure Vessel Code, Section IX
ASNT SNT-TC-1A, Recommended Practice, Personnel Qualification and Certification in Non-Destructive
Testing
ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A751, Standard Test Methods, Practices and Terminology for Chemical Analysis of Steel Products
ASTM A941, Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
ASTM E4, Standard Practices for Force Verification of Testing Machines
ASTM E10, Standard Test Method for Brinell Hardness of Metallic Materials
ASTM E18, Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E23, Standard Test Methods for Notched Bar Impact Testing of Metallic Materials
ASTM E83, Standard Practice for Verification and Classification of Extensometer Systems
ASTM E92, Standard Test Method for Vickers Hardness of Metallic Materials
ASTM E213, Standard Practice for Ultrasonic Examination of Metal Pipe and Tubing
ASTM E309, Standard Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic
Saturation
ASTM E570, Standard Practice for Flux Leakage Examina
...

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