TECHNICAL ISO/TR REPORT 14685 First edition 2001-12-15 Hydrometric determinations Geophysical logging of boreholes for hydrogeological purposes Considerations and guidelines for making measurements Determinations hydrometriques Repertoriage geophysique des trous de sonde pour des besoins hydrogéologiques - Considérations et lignes directrices relatives aux mesurages Reference number ISO/TR 14685:2001(E) @ ISO 2001 ISO/TR14685:2001(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 file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is atrademark 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. @ISO 2001 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 member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland @ ISO 2001 - All rights reserved ISO/TR14685:2001(E) Contents Page Foreword... Introduction. 1 2 Termsand definitions : Units of measurement... 4 .6 4.1 General... 4.2 Formation logging .... 4.3 Fluid loging .... .9 4.4 Construction logging .... 4.5 Selection of logs ... 12 5 Planning. 13 5.1 General considerations...... 13 5.2 15 5.3 Site access.. 5.4 Access within a borehole... 16 5.5 16 5.6 Borehole details ... 5.7 Logging sequence 17 5.8 Quality assurance.... 18 Formation logging 6.1 18 6.2 Electric logs ... 18 6.3 Natural gamma-ray logs.. 21 6.4 Neutron-neutron (porosity) logs .... 22 6.5 6.6 Sonic logs.... 24 6.7 Other logs.. 25 7 Fluid logging .26 7.1 General...... .26 7.2 Temperature .... 7.3 Fluid conductivity . 26 7.4 Flow... 28 Construction logging .. 29 8.1 General....... 8.2 Calliper. 29 8.3 Casing collar locator . 30 8.4 Cement bond. 31 8.5 9 Log presentation.... 32 9.1 General.. .32 9.2 Track layout. 35 9.3 Log parameter scales.. 35 9.4 Depth scales... .35 9.5 Composite logs.... 35 9.6 Differential logs.... 36 Bibliography 37 ionnserved ili