BS-EN-ISO-10427-1-2002.pdf

BRITISH STANDARD BS EN ISO 10427-1:2002 Incorporating Corrigendum No. 1 Petroleum and natural gas industries Casing centralizers Part 1: Bow-spring casing centralizers The European Standard EN ISO 10427-1:2001 has the status of a British Standard ICS 75.180.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 10427-1:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 February 2002 © BSI 15 October 2002 ISBN 0 580 38994 4 National foreword This British Standard is the official English language version of EN ISO 10427-1:2001. It is identical with ISO 10427-1:2001. The UK participation in its preparation was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum and natural gas industries, to Subcommittee PSE/17/-/3, Drilling and completion fluids and well cements, which has the responsibility to: BS EN ISO 10427-1 deals only with bow-spring casing centralizers, which are the most commonly applied types of centralizer for placing the casing more centrally in the wellbore. Bow-spring casing centralizers are made of bows which are like springs with sufficient stiffness to give suitable standoff downhole, but with enough flexibility for employment in holes of different diameters and shapes. Rigid centralizers are constructed with a fixed bow-height and are designed to fit a specific casing or wellbore size. It is intended that rigid centralizers will be covered by new standards in the ISO 10427 series. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14173 Corrigendum No. 1 15 October 2002 Correction to EN ISO foreword page Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 10427-1 October 2001 ICS 07.018.10 English version Petroleum and natural gas industries - Casing centralizers - Part 1: Bow-spring casing centralizers (ISO 10427-1:2001) Industries du pétrole et du gaz naturel - Centreurs de tubes - Partie 1: Centreurs de tubes de cuvelage (ISO 10427- 1:2001) This European Standard was approved by CEN on 1 October 2001. 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 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, 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 © 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10427-1:2001 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CORRECTED 2002-09-25 Foreword This document (EN ISO 10427-1:2001) 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 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 April 2002, and conflicting national standards shall be withdrawn at the latest by April 2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10427-1:2001 has been approved by CEN as EN ISO 10427-1:2001 without any modifications. EN ISO 104271:2002 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 10427-1:2001(E) INTERNATIONAL STANDARD ISO 10427-1 First edition 2001-10-01 Petroleum and natural gas industries Casing centralizers Part 1: Bow-spring casing centralizers Industries du pétrole et du gaz naturel Centreurs de tubes Partie 1: Centreurs de tubes de cuvelage EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii ContentsPage Foreword.iv Introduction.v 1Scope 1 2Normative reference1 3Terms and definitions .1 4Requirements.2 5Testing equipment.3 6Procedure for starting-force and running-force tests5 7Procedure for restoring-force test.6 8Marking.7 Annex A (informative) Miscellaneous information.8 Bibliography10 EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv 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 3. 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 part of ISO 10427 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 10427-1 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum and natural gas industries, Subcommittee SC 3, Drilling and completion fluids, and well cements. This first edition of ISO 10427-1 cancels and replaces, in part, the first edition of ISO 10427 (ISO 10427:1993), which has been technically revised. ISO 10427 consists of the following parts, under the general title Petroleum and natural gas industries Casing centralizers: ?Part 1: Bow-spring casing centralizers ?Part 2: Centralizer placement and stop-collar testing Annex A of this part of ISO 10427 is for information only. EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction This part of ISO 10427 is based on API Specification 10D, 5th edition, January 1995. Users of this part of ISO 10427 should be aware that further or differing requirements may be needed for individual applications. This part of ISO 10427 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 part of ISO 10427 and provide details. In this part of ISO 10427, where practical, U.S. Customary units are included in brackets after SI units for information. EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 104271:2001 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADRISO -724011:(1002E) © ISO 1002 All rights rsedevre1 Petroleum and natural gas industries Casing centralizers Part 1: Bow-spring casing centralizers 1Scope This part of ISO 10427 provides minimum performance requirements, test procedures and marking requirements for bow-spring casing centralizers for the petroleum and natural gas industries. The procedures provide verification testing for the manufacturers design, materials and process specifications, and periodic testing to confirm the consistency of product performance. This part of ISO 10427 is not applicable to rigid or positive centralizers. 2Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this part of ISO 10427. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 10427 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 11960, Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells 3Terms and definitions For the purposes of this part of ISO 10427, the following terms and definitions apply. 3.1 flexed condition of a bow spring when a force three times the specified minimum restoring force (?5 %) has been applied to it 3.2 holding device device employed to fix the stop collar or centralizer to the casing EXAMPLESSet screws, nails, mechanical dogs and epoxy resins. 3.3 holding force maximum force required to initiate slippage of a stop collar on the casing 3.4 hole size diameter of the wellbore EN ISO 104271:2001 1 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO -724011:(1002E) 2© ISO 1002 All rights rsedevre 3.5 restoring force force exerted by a centralizer against the casing to keep it away from the wellbore wall NOTERestoring force values can vary based on installation methods. 3.6 rigid centralizer centralizer manufactured with bows that do not flex 3.7 running force maximum force required to move a centralizer through a specified wellbore diameter NOTERunning-force values can vary depending on the installation methods. 3.8 standoff smallest distance between the outside diameter of the casing and the wellbore 3.9 standoff ratio ratio of standoff to annular clearance NOTEIt is expressed as a percentage. 3.10 starting force maximum force required to insert a centralizer into a specified wellbore diameter NOTEStarting-force values can vary depending on the installation methods. 3.11 stop collar device attached to the casing to prevent movement of a casing centralizer NOTEA stop collar can be either an independent piece of equipment or integral with the centralizer. 4Requirements 4.1Functions of a centralizer The purpose of a casing centralizer is to facilitate running casing to the desired depth and to assist in centring the casing in the wellbore. One of the main objectives of centralizing a casing string is to facilitate a good cementing, thereby isolating fluids from different zones. A bow-spring centralizer can be constructed in various ways, using various types, shapes and quantities of bow spring. 4.2Starting force The maximum starting force shall be less than the weight of 12,19 m (40 ft) of casing of medium linear mass as defined in Table 1. The maximum starting force shall be determined for a centralizer in new, fully assembled condition. 4.3Restoring force The minimum restoring force for a 67 % standoff ratio shall not be less than the values shown in Table 1. See A.2 for the derivation of the requirements. EN ISO 104271:2001 2 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:44:06 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO -724011:(1002E) © ISO 1002 All rights rsedevre3 Table 1 Specifications Casing centralizers Casing diameterMedium linear mass casing Minimum restoring force at 67 % standoff ratio Maximum starting force mm(in)kg/m(lb/ft)N(lbf)N(lbf) 89 102 114 (3 ½) a (4) a (4 ½) 14,7 16,9 17,3 (9,91) a (11,34) a (11,6) 1 761 2 019 2 064 (396) (454) (464) 1 761 2 019 2 064 (396) (454) (464) 127 140 168 (5) (5 ½) (6 5/ 8) 19,3 23,1 35,7 (13,0) (15,5) (24,0) 2 313 2 758 4 270 (520) (620) (960) 2 313 2 758 4 270 (520) (620) (960) 178 194 219 (7) (7 5/ 8) (8 5/ 8) 38,7 39,3 53,6 (26,0) (26,4) (36,0) 4 626 4 697 6 405 (1 040) (1 056) (1 440) 4 626 4 697 6 405 (1 040) (1 056) (1 440) 244 273 298 (9 5/ 8) (10 ¾) (11 ¾) 59,5 75,9 80,4 (40,0) (51,0) (54,0) 7 117 4 537 4