1、Recommended Practices for Testing Sand Used in Gravel Packing Operations API RECOMMENDED PRACTICE 58 SECOND EDITION,DECEMBER 1995 Ji)American Petroleum Institute Recommended Practices for Testing Sand Used in Gravel Packing Operations Exploration and Production Department API RECOMMENDED PRACTICE 58
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14、 in a retrieval system,or transmitted by any means,electronic,mechanical,photocopying,recording,or otherwise,without prior written permission from the publisher.Contact API Publications Manager,1220 L Street,N.W.,Washington,DC 20005.Copyright 1995 American Petroleum Institute ii CONTENTS 1 SCOPE.1 2
15、 REFERENCES.1 2.1 Standards.1 2.2 Other References.1 3 RECOMMENDED SAND SAMPLING PROCEDURE.1 3.1 Description.1 3.2 Equipment.1 3.3 Recommended Number of Samples.1 3.4 Sampling(Bulk Material).1 3.5 Sampling(Sacked Material).1 4 RECOMMENDED SAND SAMPLES HANDLING AND STORAGE.2 4.1 Sample Reduction(Sack
16、ed Material).2 4.2 Sample Splitting.2 4.3 Sample Retention and Storage.2 5 RECOMMENDED GRAVEL PACKING SAND SIEVE ANALYSIS.2 5.1 SieveAnalysis.2 5.2 Recommended Gravel Packing Sand Size.4 6 GRAVEL PACKING SAND SPHERICITY AND ROUNDNESS.4 6.1 General.4 6.2 Sphericity.5 6.3 Roundness.5 6.4 Recommended Sphericity and Roundness.6 6.5 Sand Grain Clusters.6 6.6 Alternative Method for Determining Average Sphericity and Roundness.6 7 EVALUATION OF SAND SOLUBILITY IN ACID.6 7.1 Description.6 7.2 Acid Solub
