ISO/TR TECHNICAL REPORT 10400 Second edition 2018-08 Petroleum and natural gas industries Formulae and calculations for the properties of casing, tubing, drill pipe and line pipe used as casing or tubing Industries du pétrole et du gaz naturel Formules et calculs relatifs aux proprietés des tubes de cuvelage, des tubes de production, des tiges de forage et des tubes de conduites utilisés comme tubes de cuvelage et tubes de production Reference number IS0/TR 10400:2018(E) rso @IS02018 IS0/TR 10400:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved IS0/TR 10400:2018(E) Contents Page Foreword ..vi Introduction. ..vii 1 Scope. 2 Normative references .. 3 Terms and definitions 4 Symbols. ..4 5 Conformance. ..13 5.1 References .13 5.2 Units of measurement .13 6 Triaxial yield of pipe body ..13 6.1 General .13 6.2 Assumptions and limitations. .13 6.2.1 General .13 6.2.2 Concentric, circular cross-sectional geometry. .14 6.2.3 Isotropic yield.. 14 6.2.4 No residual stress 14 6.2.5 Cross-sectional instability (collapse) and axial instability (column buckling) 6.3 Data requirements. .14 6.4 Design formula for triaxial yield of pipe body ..14 6.5 Application of design formula for triaxial yield of pipe body to line pipe ..16 6.6 Examplecalculations .16 6.6.1 Initial yield of pipe body, Lamé formula for pipe when external pressure, bending and torsion are zero. ..16 6.6.2 Yield design formula, special case for thin wall pipe with internal pressure only and zero axial load .18 6.6.3 Pipe body yield strength .18 6.6.4 Yield in the absence of bending and torsion ..19 7 Ductile rupture of the pipe body .20 7.1 General .20 7.2 Assumptions and limitations.. 20 7.3 Data requirements. .21 7.3.1 General. .21 7.3.2 Determination of the hardening index 21 7.3.3 Determination of the burst strength factor, ka 22 7.4 Design formula for capped-end ductile rupture. 23 7.5 Adjustment for the effect of axial force and external pressure 24 7.5.1 General. 24 7.5.2 Design formula for ductile rupture under combined loads 25 7.5.3 Design formula for ductile necking under combined loads 26 7.5.4 Boundary between rupture and necking. 27 7.5.5 Axisymmetric wrinkling under combined loads 27 7.6 Example calculations. 28 7.6.1 Ductile rupture of an end-capped pipe. 28 7.6.2 Ductile rupture for a given true axial load .28 8 External pressure resistance .29 8.1 General 29 8.2 Assumptions and limitations.. 29 8.3 Data requirements 29 8.4 Design formula for collapse of pipe body 30 8.4.1 General. 30 8.4.2 Yield strength collapse pressure formula 30 @ IS0 2018 - All rights reserved ii IS0/TR 10400:2018(E) 8.4.3 Plastic collapse pressure formula 31 8.4.4 Transition collapse pressure formula .33 8.4.5 Elastic collapse pressure formula 34 8.4.6 Collapse pressure under axial tensile stress 35 8.4.7 Collapse pressure under axial stress and internal pressure 35 8.5 Formulae for empirical constants . 35 8.5.1 General 35 8.5.2 SI units 36 8.5.3 USC units 36 8.6 Application of collapse pressure formulae to line pipe 37 8.7 Examplecalculations 37 9 Joint strength 37 9.1 General. 37 9.2 API casing connection tensile joint strength 37 9.2.1 General. 37 9.2.2 Round thread casing joint strength 38 9.2.3 Buttress thread casing joint strength .40 9.3 API tubing connection tensile joint strength 42 9.3.1 General. 42 9.3.2 Non-upset tub