ISO INTERNATIONAL STANDARD 13500 Third edition 2008-11-01 Petroleum and natural gas industries - Drilling fluid materials Specifications and tests Industries du pétrole et du gaz naturelProduits pour fluides de forage- Spécifications et essais Reference number ISO 13500:2008(E) @ ISO 2008 IHSunder Not for Resale ISO 13500:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT @ ISO2008 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 IsO's memberbody in the country of the requester. ISO copyright office Case postale 56. CH-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISo 2008 - All rights reserved I without license from IHS Not for Resale ISO 13500:2008(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviations 4 Requirements 5 Calibration 6 Packaged material. 7 Barite.. 8 Haematite (hematite). 22 9 Bentonite 10 Non-treated bentonite. 11 OcMA grade bentonite. 12 Attapulgite 13 Sepiolite . 43 14 Technical-grade low-viscosity CMC (CMC-LVT). 15 Technical-grade high-viscosity CMC (CMC-HVT). 16 17 Low-viscosity polyanionic cellulose (PAC-LV)... 59 18 High-viscosity polyanionic cellulose (PAC-HV) . 19 Drilling-grade xanthan gum . 71 AnnexA(informative)Mineralimpuritiesinbarite... Annex B (informative) Test precision 84 Annex C (informative) Examples of calculations . 89 Bibliography .... Copyright International Organization forstandardizallon'ghts reserved ii from IHS Not for Res