1、BRITISH STANDARD BS EN ISO 10427-2:2004 Petroleum and natural gas industries Equipment for well cementing Part 2: Centralizer placement and stop-collar testing The European Standard EN ISO 10427-2:2004 has the status of a British Standard ICS 75.180.10 BS EN 10427-2:2004 This British Standard was pu
2、blished under the authority of the Standards Policy and Strategy Committee on 8 June 2004 BSI 8 June 2004 ISBN 0 580 43858 9 National foreword This British Standard is the official English language version of EN ISO 10427-2:2004. It is identical with ISO 10427-2:2004. The UK participation in its pre
3、paration was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum, petrochemical and natural gas industries, to Subcommittee PSE/17/-/3, Drilling and completion fluids and well cements, which has the responsibility to: A list of organizations represented on this subcommitte
4、e 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 “Sear
5、ch” 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 ob
6、ligations. 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. Summar
7、y 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 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the docu
8、ment was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO104272 May2004 ICS75.180.10 Englishversion PetroleumandnaturalgasindustriesEquipmentforwell cementingPart2:Centralizerplacementandstopcollartesting (ISO104272:2004) Ind
9、ustriesduptroleetdugaznaturelEquipementde cimentationdepuitsPartie2:Miseenplacedescentreurs etessaidescolliersdarrt(ISO104272:2004) ErdlundErdgasindustrieZentriereinrichtungenfr FutterrohreTeil2:AnordnungdesZentrierersundPrfung desAnschlagbundes(ISO104272:2004) ThisEuropeanStandardwasapprovedbyCENon
10、16April2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecre
11、tariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandar
12、dsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEURO
13、PENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO104272:2004:E I NESO 01-724:2002( 4E) 2 Foreword This document (EN ISO 10427-2:2004) has been prepar
14、ed 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
15、 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 November 2004, and conflicting national standards shall be withdrawn at the latest by November 2004. According to the CEN/CENELEC Internal R
16、egulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands
17、, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 10427-2:2004 has been approved by CEN as EN ISO 10427-2:2004 without any modifications. ENISO104272:2004 Reference number ISO 10427-2:2004(E)INTERNATIONAL ADNATSDR ISO 17
18、2402- tide tsriFino -400210-50 Petroleum and natural gas industries Equipment for well cementing Part 2: Centralizer placement and stop-collar testing Industries du ptrole et du gaz naturel quipement de cimentation de puits Partie 2: Mise en place des centreurs et essai des colliers darrt Referecne
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23、t gno it is f,dnuo plsaee inform ttneC ehlar Secrteiraat ta the serddaig sleb nevwo. ii ENISO104272:2004ISO 10427-2:2004(E) iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Methods for estimating centralizer placement. 3 4.1 General. 3 4.2
24、 Standoff ratio calculation. 4 4.3 Buoyed weight of casing 5 4.4 Calculations for centralizer spacing . 6 5 Procedure for testing stop collars 9 5.1 General. 9 5.2 Apparatus. 10 5.3 Test procedure 11 5.4 Reporting of test results. 11 Annex A (informative) Documentation of stop-collar test results. 1
25、2 Bibliography . 14 ENISO104272:2004ISO 10427-2:2004(E) 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 committ
26、ees. 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 Int
27、ernational 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
28、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 s
29、ubject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 10427-2 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 3, Drilling and c
30、ompletion fluids, and well cements. This first edition of ISO 10427-2, together with ISO 10427-1 and ISO 10427-3, cancels and replaces ISO 10427:1993, which has been technically revised. ISO 10427 consists of the following parts, under the general title Petroleum and natural gas industries Equipment
31、 for well cementing: Part 1: Casing bow-spring centralizers Part 2: Centralizer placement and stop-collar testing Part 3: Performance testing of cementing float equipment ENISO104272:2004ISO 10427-2:2004(E) vIntroduction This part of ISO 10427 is based on API Specification 10D, 5th edition, January
32、1995 1 . In this part of ISO 10427, where practical, U.S. Customary units are included in brackets for information. ENISO104272:2004blankINTENRATIONAL TSANDADR IS-72401 O2:(4002E)1Petroleum and natural gas industries Equipment for well cementing Part 2: Centralizer placement and stop-collar testing
33、1 Scope This part of ISO 10427 provides calculations for determining centralizer spacing, based on centralizer performance and desired standoff, in deviated and dogleg holes in wells for the petroleum and natural gas industries. It also provides a procedure for testing stop collars and reporting tes
34、t results. 2 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 amendments) applies. ISO 11960, Petr
35、oleum and natural gas industries Steel pipes for use as casing or tubing for wells 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 annular clearance for perfectly centred casing wellbore diameter minus casing outside diameter divided by two 3
36、.2 centralizer permanent set change in centralizer bow height after repeated flexing NOTE A bow-spring centralizer is considered to have reached permanent set after being flexed 12 times. 3.3 flexed condition of a bow-spring when a force three times the specified minimum restoring force ( 5 %) has b
37、een applied to it ISO 10427-1:2001, 3.1 NOTE Specified minimum restoring force values are found in Table 1 of ISO 10427-1:2001. ENISO104272:2004ISO 10427-2:2004(E) 2 3.4 holding device device employed to fix the stop collar or centralizer to the casing EXAMPLE Set screws, nails, mechanical dogs and
38、epoxy resins. ISO 10427-1:2001, 3.2 3.5 holding force maximum force required to initiate slippage of a stop collar on the casing ISO 10427-1:2001, 3.3 3.6 hole size diameter of the wellbore ISO 10427-1:2001 3.7 limit clamp equivalent term for a stop collar 3.8 restoring force force exerted by a cent
39、ralizer against the casing to keep it away from the wellbore wall NOTE Restoring-force values can vary based on the installation methods. ISO 10427-1:2001, 3.5 3.9 rigid centralizer centralizer manufactured with bows, blades or bars that do not flex NOTE Adapted from ISO 10427-1:2001, 3.6. 3.10 runn
40、ing force maximum force required to move a centralizer through a specified wellbore diameter NOTE Running-force values can vary based on the installation methods. ISO 10427-1:2001 3.11 sag point point where the casing deflection is at a maximum NOTE Casing that is supported at two points will tend t
41、o sag between the support points, this sag is called the casing sag or casing deflection. 3.12 slippage force range range of forces required to continue to move a stop collar after the holding force has been overcome ENISO104272:2004ISO 10427-2:2004(E) 33.13 solid centralizer centralizer manufacture
42、d in such a manner as to be a solid device with nonflexible fins or bands NOTE These centralizers have solid bodies and solid blades. 3.14 standoff smallest distance between the outside diameter of the casing and the wellbore ISO 10427-1:2001, 3.8 3.15 standoff ratio R sratio of standoff to annular
43、clearance for perfectly centred casing NOTE 1 It is expressed as a percentage. NOTE 2 Adapted from ISO 10427-1:2001, 3.9. 3.16 starting force maximum force required to insert a centralizer into a specified wellbore diameter NOTE Starting-force values can vary based on the installation methods. ISO 1
44、0427-1:2001, 3.10 3.17 stop collar device attached to the casing to prevent movement of a casing centralizer NOTE A stop collar can be either an independent piece of equipment or integral with the centralizer. ISO 10427-1:2001, 3.11 4 Methods for estimating centralizer placement 4.1 General The equa
45、tions presented below are based on certain assumptions and are considered sufficiently accurate for general use. More specific calculations based on complete wellbore data may be available but are beyond the scope of this document. There is no recommendation or requirement for a specific standoff ra
46、tio for casing centralization. The standoff ratio of 67 % is used in the specification for the purpose of setting a minimum standard for performance of casing bow-spring centralizers only. This number is used only in the specifications for bow-spring type centralizers and deals with the minimum forc
47、e for each size of centralizer at that standoff. The 67 % standoff ratio is not intended to represent the minimum acceptable amount of standoff required to obtain successful centralization of the casing. The user is encouraged to apply the standoff ratio required for specific well conditions based o
48、n well requirements and sound engineering judgement. Even a minor change in inclination and/or azimuth, with the string of casing hanging below it, materially affects the standoff and the requirements for centralizer placement. ENISO104272:2004ISO 10427-2:2004(E) 4 The lateral load (force) on a centralizer is composed of two components. The first is the weight component of the section of pipe supported by the centralizer, and the second is the tension co
