EN ISO 10426-6:2008

Petroleum and natural gas industries - Cements and materials for well cementing - Part 6: Methods for determining the static gel strength of cement formulations (ISO 10426-6:2008)

ISO 10426-6:2008 specifies requirements and provides test methods for the determination of static gel strength of cement slurries and related materials under simulated well conditions.

Erdöl- und Erdgasindustrie - Zemente und Materialien für die Zementation von Tiefbohrungen - Teil 6: Verfahren zur Bestimmung der statischen Gelfestigkeit von Zementzusammensetzungen (ISO 10426-6:2008)

Industries du pétrole et du gas naturel - Ciments et matériaux pour la cimentation des puits - Partie 6: Méthodes de détermination de la force statique du gel des formulations de ciment (ISO 10426-6:2008)

L'ISO 10426-6:2008 spécifie les exigences et fournit des méthodes d'essai permettant de déterminer la force statique du gel (SGS) des laitiers de ciment et des matériaux apparentés dans des conditions de puits simulées.

Industrija nafte in zemeljskega plina - Cementi in materiali za cementiranje vrtin - 6. del: Metode za določanje statične trdnosti gela cementnih mešanic (ISO 10426-6:2008)

General Information

• Status: Published
• Publication Date: 30-Jun-2008
• Withdrawal Date: 30-Jan-2009
• ICS: 75.020 - Extraction and processing of petroleum and natural gas
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Drafting Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Jul-2008
• Due Date: 21-Apr-2009
• Completion Date: 01-Jul-2008
• Ref Project: SIST EN ISO 10426-6:2008 - Petroleum and natural gas industries - Cements and materials for well cementing - Part 6: Methods for determining the static gel strength of cement formulations (ISO 10426-6:2008)

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2008
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GHO0HWRGH]DGRORþDQMHVWDWLþQHWUGQRVWLJHODFHPHQWQLKPHãDQLF,62

Petroleum and natural gas industries - Cements and materials for well cementing - Part
6: Methods for determining the static gel strength of cement formulations (ISO 10426-
6:2008)
Erdöl- und Erdgasindustrie - Zemente und Materialien für die Zementation von
Tiefbohrungen - Teil 6: Verfahren zur Bestimmung der statischen Gelfestigkeit von
Zementzusammensetzungen (ISO 10426-6:2008)
Industries du pétrole et du gas naturel - Ciments et matériaux pour la cimentation des
puits - Partie 6: Méthodes de détermination de la force statique du gel des formulations
de ciment (ISO 10426-6:2008)
Ta slovenski standard je istoveten z: EN ISO 10426-6:2008
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10426-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2008
ICS 91.100.10; 75.020
English Version
Petroleum and natural gas industries - Cements and materials
for well cementing - Part 6: Methods for determining the static
gel strength of cement formulations (ISO 10426-6:2008)
Industries du pétrole et du gas naturel - Ciments et Erdöl- und Erdgasindustrie - Zemente und Materialien für
matériaux pour la cimentation des puits - Partie 6: die Zementation von Tiefbohrungen - Teil 6: Verfahren zur
Méthodes de détermination de la force statique du gel des Bestimmung der statischen Gelfestigkeit von
formulations de ciment (ISO 10426-6:2008) Zementzusammensetzungen (ISO 10426-6:2008)
This European Standard was approved by CEN on 21 June 2008.
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 CEN Management Centre 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 CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, 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
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10426-6:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 10426-6:2008) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum and natural gas industries" in collaboration withTechnical
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 January 2009, and conflicting national standards shall be withdrawn at
the latest by January 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 10426-6:2008 has been approved by CEN as a EN ISO 10426-6:2008 without any
modification.
INTERNATIONAL ISO
STANDARD 10426-6
First edition
2008-07-01
Petroleum and natural gas industries —
Cements and materials for well
cementing —
Part 6:
Methods for determining the static gel
strength of cement formulations
Industries du pétrole et du gaz naturel — Ciments et matériaux pour
la cimentation des puits —
Partie 6: Méthodes de détermination de la force statique du gel
des formulations de ciment
Reference number
ISO 10426-6:2008(E)
©
ISO 2008
ISO 10426-6:2008(E)
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ii © ISO 2008 – All rights reserved

ISO 10426-6:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Sampling.2
5 Preparation .2
6 Test method using rotating-type static gel strength apparatus .3
7 Test method using ultrasonic-type static gel strength apparatus .4
8 Test method using intermittent rotation-type static gel strength apparatus .6
Annex A (informative) Critical static gel strength — Additional information.8
Bibliography .9

ISO 10426-6:2008(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 10426-6 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 10426 consists of the following parts, under the general title Petroleum and natural gas industries —
Cements and materials for well cementing:
⎯ Part 1: Specification
⎯ Part 2: Testing of well cements
⎯ Part 3: Testing of deepwater well cement formulations
⎯ Part 4: Preparation and testing of foamed cement slurries at atmospheric pressure
⎯ Part 5: Determination of shrinkage and expansion of well cement formulations at atmospheric pressure
⎯ Part 6: Methods for determining the static gel strength of cement formulations
iv © ISO 2008 – All rights reserved

ISO 10426-6:2008(E)
Introduction
Characterizing the static gel-strength (SGS) development of a cement slurry is an important design parameter
in specific cementing environments. These include shallow-water flow mitigation, plugging operations and
certain annular flow circumstances. Determining the gel-strength characteristics of a cement slurry allows the
user to ascertain if the cement design is fit for a particular intended purpose. Historically, the SGS of a cement
slurry was determined by a method using a couette-type rotational viscometer. More recently, specialized
instruments, including a rotating-type apparatus, an intermittent rotation-type apparatus and an ultrasonic-type
apparatus, have been used to measure the gel-strength development of a static cement slurry. This part of
ISO 10426 provides the testing protocol for determining SGS using these three types of instruments.
It is necessary to note due that, due to differences in sample size, apparatus configuration and method of
SGS determination, there can be considerable variance in results obtained by the three types of instruments
described in this part of ISO 10426.
CAUTION — Caution is necessary when using static gel-strength development testing results as the
single or predominant engineering parameter of a cement slurry design or technical evaluation.
In this part of ISO 10426, where practical, U.S. Customary (USC) units are included in brackets for information.
The units do not necessarily represent a direct conversion of SI to USC, or USC to SI, units. Consideration
has been given to the precision of the instrument making the measurement. For example, thermometers are
typically marked in one degree increments, thus temperature values have been rounded to the nearest degree.
In this part of ISO 10426, calibrating an instrument refers to ensuring the accuracy of the measurement.
Accuracy is the degree of conformity of a quantity to its actual or true value. Accuracy is related to precision,
or reproducibility of a measurement. Precision is the degree to which further measurements or calculations
show the same or similar results. Precision is characterized in terms of the standard deviation of the
measurement. The results of calculations or a measurement can be accurate but not precise, precise but not
accurate, neither or both. A result is valid if it is both accurate and precise.
Annex A of this part of ISO 10426 is for information only.

INTERNATIONAL STANDARD ISO 10426-6:2008(E)

Petroleum and natural gas industries — Cements and materials
for well cementing —
Part 6:
Methods for determining the static gel strength of cement
formulations
1 Scope
This part of ISO 10426 specifies requirements and provides test methods for the determination of static gel
strength (SGS) of cement slurries and related materials under simulated well conditions.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated r
...