ISO INTERNATIONAL STANDARD 13503-6 First edition 2014-03-15 Petroleum and natural gas industries Completion fluids and materials - Part 6: Procedure for measuring leakoff of completion fluids under dynamic conditions Industries du pétrole et du gaz naturel - Fluides de complétion et materiaux- Partie 6: Mode operatoire pour le mesurage de la perte de fluide par filtration en conditions dynamiques des fluides de completion Reference number IS0 13503-6:2014(E) ISO Copyright International Organization for Standardization @ IS0 2014 ed without license from IHS Not for Resale IS0 13503-6:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, 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 Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved or networking permited without license from IHS Not for Resale IS0 13503-6:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Terms and definitions 3 Cell type. ..2 4 Identification of test parameters (linear flow cells) .3 4.1 General .3 4.2 Temperature .3 4.3 Pressure. .4 4.4 Test duration ..4 4.5 Shear rate 4 4.6 Permeability ..4 4.7 Fluid shear-history simulator (optional) .4 4.8 Heat-up rate. .4 5 Test procedure.. ..4 5.1 Core preparation .4 5.2 Round cell ..5 5.3 Proppant conductivity cell .5 6 Calculations. ..6 6.1 Shear rate. .6 6.2 Leakoff coefficients. .6 Calculation examples .8 7 7.1 Round cell Linear gel .8 7.2 Round cell - Crosslinked gel .10 7.3 Proppant conductivity cell - Crosslinked gel .11 8 Report .12 Bibliography .14 iii d by IHS urider lic e with ISt d without license from IHS Not for Resale