1、BS EN ISO 16440:2016Petroleum and naturalgas industries Pipelinetransportation systems Design, construction andmaintenance of steel casedpipelines (ISO 16440:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 16440:2016 BRITISH STANDARDNational forewordTh
2、is British Standard is the UK implementation of EN ISO 16440:2016. The UK participation in its preparation was entrusted to Technical Committee PSE/17/2, Transmission pipelines.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not
3、 purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 79260 1 ICS 75.200; 77.140.75 Compliance with a British Standard cannot confer immunity from
4、 legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16440 November 2016 ICS 75.
5、200; 77.140.75 English Version Petroleum and natural gas industries - Pipeline transportation systems - Design, construction and maintenance of steel cased pipelines (ISO 16440:2016) Industries du ptrole et du gaz naturel - Systmes de transport par conduites - Conception, construction et maintenance
6、 de conduites en fourreau en acier (ISO 16440:2016) Erdl- und Erdgasindustrien - Rohrleitungs-Transportsysteme - Auslegung, Konstruktion und Instandhaltung von stahlverkleideten Rohrleitungen (ISO 16440:2016) This European Standard was approved by CEN on 7 August 2016. CEN members are bound to compl
7、y 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
8、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 sam
9、e 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,
10、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016
11、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16440:2016 EBS EN ISO 16440:2016EN ISO 16440:2016 (E) 3 European foreword This document (EN ISO 16440:2016) has been prepared by Technical Committee ISO/TC 67 “Materials, equipme
12、nt 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 Standa
13、rd shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this docum
14、ent 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: A
15、ustria, 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, Sw
16、eden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16440:2016 has been approved by CEN as EN ISO 16440:2016 without any modification. BS EN ISO 16440:2016ISO 16440:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Design
17、 24.1 General . 24.2 Carrier pipe design 34.3 Casing design 34.4 Electrical isolation . 44.5 Corrosion protection 45 Installation . 45.1 General . 45.2 Handling and storage. 45.3 New casing 45.3.1 General 45.3.2 Carrier pipe installation 55.3.3 Casing end seals 65.3.4 Test leads 65.3.5 Backfilling 7
18、5.4 Split-sleeve type casing extensions and installations 76 Inspection and monitoring 86.1 General . 86.2 Integrity inspection of carrier pipe . 86.3 Monitoring of carrier pipe and casing 96.4 Leakage survey . 96.5 Corrosiveness of the annular space 97 Maintenance and repair 97.1 General . 97.2 Mai
19、ntenance of vents and test leads . 107.3 Clearing of shorted casings . 107.4 Filling of casings . 117.5 Removal of casings 11Annex A (informative) Casing filling procedures for Dielectric Filler Materials .12Annex B (informative) Examples of cathodic protection testing and monitoring techniques for
20、carrier pipes and casings 15Annex C (informative) Inspection tools for cased carrier pipe 30Annex D (informative) Clearing a shorted casing 35Annex E (informative) Removing and cutting a casing .37Bibliography .39 ISO 2016 All rights reserved iiiContents PageBS EN ISO 16440:2016ISO 16440:2016(E)Fore
21、wordISO (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 techni
22、cal 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 e
23、lectrotechnical 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 wa
24、s 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 pate
25、nt 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 c
26、onstitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/
27、iso/foreword.html.The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 2, Pipeline transportation systems.iv ISO 2016 All rights reservedBS EN ISO 16440:2016ISO 16440:2016(E)Int
28、roductionUsers of this document are advised that further or differing requirements might be needed for individual applications. This document is not intended to inhibit a vendor from offering, or the purchaser from accepting, alternative equipment, or engineering solutions for the individual applica
29、tion. This might be particularly applicable where there is innovative or developing technology. Where an alternative is offered, it is advisable that the vendor identify any variations from this document and provide details. ISO 2016 All rights reserved vBS EN ISO 16440:2016BS EN ISO 16440:2016Petro
30、leum and natural gas industries Pipeline transportation systems Design, construction and maintenance of steel cased pipelines1 ScopeThis document specifies requirements, including corrosion protection, for the design, fabrication, installation and maintenance of steel-cased pipelines for pipeline tr
31、ansportation systems in the petroleum and natural gas industries in accordance with ISO 13623.NOTE 1 Steel casings can be used for mechanical protection of pipelines at crossings, such as at roads and railways and the installation of a casing at a highway, railway, or other crossing can be required
32、by the permitting agency or pipeline operator.NOTE 2 This document does not imply that utilization of casings is mandatory or necessary.NOTE 3 This document does not imply that cased crossings, whether electrically isolated or electrically shorted, contribute to corrosion of a carrier pipe within a
33、cased crossing. However, cased crossings can adversely affect the integrity of the carrier pipe by shielding cathodic protection (CP) current to the carrier pipe or reducing the CP effectiveness on the carrier pipe in the vicinity of the casing. Their use is not recommended unless required by load c
34、onsiderations, unstable soil conditions, or when their use is dictated by sound engineering practices.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the ed
35、ition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 15589-1, Petroleum, petrochemical and natural gas industries Cathodic protection of pipeline systems Part 1: On-land pipelinesEN 12954, Cathodic protection of buried or i
36、mmersed metallic structures General principles and application for pipelines3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: avail
37、able at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1carrier pipepipe that conveys the fluidNote 1 to entry: Note to entry: This applies to both transmission and distribution piping.3.2casingsteel pipe installed around a carrier pipe for mechanical p
38、rotectionINTERNATIONAL STANDARD ISO 16440:2016(E) ISO 2016 All rights reserved 1BS EN ISO 16440:2016ISO 16440:2016(E)3.3electrolytemedium in which electric current is transported by ions3.4electrolytic contactionic contact between the carrier pipe and the casing pipe through an electrolyte3.5end sea
39、ldevice installed over or within the end of a casing to keep water, deleterious materials and debris out of the casing or provide a water tight seal between the casing and the carrier pipe3.6holidayunintentional discontinuity in a protective coating that exposes the bare steel surface to the environ
40、ment3.7isolatorspacerdielectric device designed to electrically isolate a carrier pipe from a casing and provide support for the carrier pipe3.8metallic shortunintentional contact between two metallic structures3.9P/S potent ia lpipe-to-electrolyte potentialstructure-to-electrolyte potentialpotentia
41、l difference between the surface of a buried or submerged metallic structure (pipe or casing) and the electrolyte that is measured with respect to a reference electrode in contact with the electrolyte3.10split sleevecasing installed in situ by welding two halves of the casing together around the car
42、rier pipe3.11tunnel liner platesteel plate used when micro tunnelling, used to shore horizontal excavations in soft ground3.12C/S potentialcasingtoelectrolyte potentialpotential difference between the surface of a buried or submerged metallic casing and the electrolyte that is measured with respect
43、to a reference electrode in contact with the electrolyte4 Design4.1 GeneralThe purpose of a casing is to provide additional mechanical protection to the carrier pipe. A casing can also be required by a permitting authority to allow replacement of a carrier pipe without excavations at the location of
44、 a crossing.2 ISO 2016 All rights reservedBS EN ISO 16440:2016ISO 16440:2016(E)A carrier pipe within a casing is not designed to be cathodically protected. It is designed to be electrically isolated from the casing with non-conducting spacers, or isolated if the annulus of the casing is filled with
45、a dielectric filler material. The carrier pipe is designed to be protected with a protective coating.Steel casings shall not be cathodically protected by the pipelines dedicated CP system.4.2 Carrier pipe designThe carrier pipe shall be coated for corrosion protection. The application of an abrasion
46、 resistant coating over the corrosion coating should be considered.NOTE 1 See NACE/SP 0169 for details of abrasion resistant coatings.The carrier pipe shall be supported inside the casing with isolating spacers and outside the casing to prevent sagging. Sagging can lead to metallic contact between t
47、he casing and the carrier pipe and to carrier pipe stresses.NOTE 2 See NACE/SP 0286 for details of isolation techniques.4.3 Casing designCasing design shall be in accordance with the local, national, or industry requirements/standards.The casing should be kept as short in length as possible to minim
48、ize the risk of electrical shorting over time due to soil stress and pipe movement.The casing internal diameter shall be selected based on the nominal diameter of the carrier pipe, the thickness of any abrasion resistant coating, such as concrete, duroplastic material, or epoxy polymer and the desig
49、n of the isolators between carrier pipe and casing.For individual carrier pipes with a nominal diameter of 200 mm (8.0 in) or greater, the outer diameter of the casing should be a minimum of 100 mm (4.0 in) larger than that of the carrier pipe or if installing parallel cable or conduits the casing should be a minimum of 300 mm larger than that of the carrier pipe.For individual carrier pipes with a nominal diameter less than 200 mm (8.0 in), the diameter of the casing should be a minimum of 50 mm (2.0 in) larger than that of the carrier pip
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