EN ISO 13503-1:2005

SLOVENSKI STANDARD
01-junij-2005
,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD7HNRþLQHLQPDWHULDOL]D
]DNOMXþQDGHODGHO0HUMHQMHYLVNR]QRVWLWHNRþLQ]D]DNOMXþQDGHOD,62

Petroleum and natural gas industries - Completion fluids and materials - Part 1:
Measurement of viscous properties of completion fluids (ISO 13503-1:2003)
Erdöl- und Erdgasindustrie - Komplettierungsflüssigkeiten und Materialien - Teil 1:
Messung der Fließeigenschaften von Komplettierungsflüssigkeiten (ISO 13503-1:2003)
Industries du pétrole et du gaz naturel - Fluides de complétion et matériaux - Partie 1:
Mesures des propriétés visqueuses des fluides de complétion (ISO 13503-1:2003)
Ta slovenski standard je istoveten z: EN ISO 13503-1:2005
ICS:
75.180.30 Oprema za merjenje Volumetric equipment and
prostornine in merjenje measurements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 13503-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2005
ICS 75.100
English version
Petroleum and natural gas industries - Completion fluids and
materials - Part 1: Measurement of viscous properties of
completion fluids (ISO 13503-1:2003)
Industries du pétrole et du gaz naturel - Fluides de Erdöl- und Erdgasindustrie - Komplettierungsflüssigkeiten
complétion et matériaux - Partie 1: Mesures des propriétés und Materialien - Teil 1: Messung der Fließeigenschaften
visqueuses des fluides de complétion (ISO 13503-1:2003) von Komplettierungsflüssigkeiten (ISO 13503-1:2003)
This European Standard was approved by CEN on 7 February 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13503-1:2005: E
worldwide for CEN national Members.

Foreword
The text of ISO 13503-1:2003 has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 13503-
1:2005 by Technical Committee CEN/TC 12 "Materials, equipment and offshore structures for
petroleum, petrochemical and natural gas industries" the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by September 2005, and conflicting national
standards shall be withdrawn at the latest by September 2005.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 13503-1:2003 has been approved by CEN as EN ISO 13503-1:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 13503-1
First edition
2003-09-01
Petroleum and natural gas industries —
Completion fluids and materials —
Part 1:
Measurement of viscous properties of
completion fluids
Industries du pétrole et du gaz naturel — Fluides de complétion et
matériaux —
Partie 1: Mesures des propriétés visqueuses des fluides de complétion

Reference number
ISO 13503-1:2003(E)
©
ISO 2003
ISO 13503-1:2003(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
downloading this 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 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.

©  ISO 2003
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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2003 — All rights reserved

ISO 13503-1:2003(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Terms and definitions. 1
3 Abbreviated terms. 2
4 Measurement and precision. 2
5 Fluid preparation. 2
6 Fluid preparation using shear-history simulation (optional). 3
6.1 General. 3
6.2 Requirements for proper shear-history simulation. 3
6.3 Conditions for sample delivery . 3
6.4 Conditions for standard shear-history simulation . 3
6.5 Operational considerations. 4
7 Instrument calibration . 5
8 Measurement procedures . 5
8.1 General. 5
8.2 Non-crosslinked fluids (see 2.6). 5
8.3 Viscoelastic fluids. 10
9 Calculation procedures . 11
9.1 General concepts . 11
9.2 Brief review of geometry-independent rheology vs. nominal rheology. 12
9.3 Limitations/problems that may produce erroneous results. 13
9.4 Calculation method for concentric-cylinder viscometers . 13
9.5 Bingham plastic parameters for completion fluids . 16
9.6 Calculations for optional shear-history simulation. 16
10 Test report. 17
Bibliography . 20

ISO 13503-1:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 13503-1 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 3, Drilling and completion fluids,
and well cements.
ISO 13503 consists of the following parts, under the general title Petroleum and natural gas industries —
Completion fluids and materials:
 Part 1: Measurement of viscous properties of completion fluids
The following part is under preparation:
 Part 2: Measurement of properties of proppants used in hydraulic fracturing and gravel-packing
operations
iv © ISO 2003 — All rights reserved

ISO 13503-1:2003(E)
Introduction
For the purpose of this part of ISO 13503, completion fluids are defined as viscosified treating fluids used
during the completion or workover of a petroleum- or natural gas-producing well. The objective of this part of
ISO 13503 is to provide a standard procedure for measuring the viscous properties of single-phase, non-
particulate-laden completion fluids. These fluids are viscosified brines, gravel-pack carrier fluids, and
fracturing fluids. These fluids can be either crosslinked or non-crosslinked (aqueous, hydrocarbon- or acid-
based).
An optional shear-history simulation procedure is provided for fluids that are potentially shear-sensitive. This
procedure is designed to simulate the shearing effects experienced by a fluid in surface apparatus and during
the time it is being conveyed down the welbore. Shear-history simulation is most often used during the
development of new fracturing fluids to characterize their sensitivity to shear.
These standard procedures were compiled on the basis of several years of comparative testing, debate,
discussion, and continued research by the industry.
This standard procedure is largely based on API RP 39, third edition, May 1998 [1].
In this part of ISO 13503, where practical, U.S. Customary units are included in parentheses for convenience.

INTERNATIONAL STANDARD ISO 13503-1:2003(E)

Petroleum and natural gas industries — Completion fluids and
materials —
Part 1:
Measurement of viscous properties of completion fluids
1 Scope
This part of ISO 13503 provides consistent methodology for determining the viscosity of completion fluids
used in the petroleum and natural gas industries. For certain cases, methods are also provided to determine
the rheological properties of a fluid.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
bob
fixed inner cylinder of a concentric-cylinder viscometer
...