SIST EN ISO 13503-6:2014

Petroleum and natural gas industries - Completion fluides and materials - Part 6: Procedure for measuring leakoff of completion fluids under dynamic conditions (ISO 13503-6:2014)

ISO 13503-6:2014 provides consistent methodology for measuring the fluid loss of completion fluids under dynamic conditions. ISO 13503-6:2014 is applicable to all completion fluids except those that react with porous media.

Erdöl- und Erdgasindustrie - Komplettierungsflüssigkeiten und -materialien - Teil 6: Verfahren zur Messung des Fluidverlustes von Komplettierungsflüssigkeiten unter dynamischen Bedingungen (ISO 13503-6:2014)

Industries du pétrole et du gaz naturel - Fluides de complétion et matériaux - Partie 6: Mode opératoire pour le mesurage de la perte de fluide de complétion sous conditions dynamiques (ISO 13503-6:2014)

ISO 13503:2014 présente une méthodologie cohérente pour le mesurage, en conditions dynamiques, de la perte de fluide par filtration des fluides de complétion. Cette partie de l'ISO 13503 s'applique à tous les fluides de complétion, excepté ceux qui réagissent avec le milieu poreux.

Industrija za predelavo nafte in zemeljskega plina - Tekočine in materiali za zaključna dela - 6. del: Postopek za merjenje uhajanja tekočin v dinamičnih pogojih (ISO 13503-6:2014)

EN ISO 13503-6 zagotavlja dosledno metodologijo za merjenje uhajanja tekočin v dinamičnih pogojih. Ta del ISO 13503 velja za vse tekočine za zaključna dela, razen tistih, ki reagirajo s poroznimi sredstvi.

General Information

• Status: Published
• Public Enquiry End Date: 24-Jun-2011
• Publication Date: 29-May-2014
• ICS: 75.100 - Lubricants, industrial oils and related products
• ICS: 75.180.30 - Volumetric equipment and measurements
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Apr-2014
• Due Date: 14-Jun-2014
• Completion Date: 30-May-2014
• Ref Project: EN ISO 13503-6:2014 - Petroleum and natural gas industries - Completion fluides and materials - Part 6: Procedure for measuring leakoff of completion fluids under dynamic conditions (ISO 13503-6:2014)

Overview

EN ISO 13503-6:2014 - "Petroleum and natural gas industries - Completion fluids and materials - Part 6" defines a standardized laboratory procedure for measuring leakoff (dynamic fluid loss) of completion fluids. The standard provides a consistent methodology to simulate circulation and fluid loss at a core face under dynamic conditions, where shear and flow alter filter-cake formation and filtrate behaviour. It is applicable to all completion fluids except fluids that chemically react with porous media.

Keywords: EN ISO 13503-6:2014, completion fluids, dynamic fluid loss, leakoff testing, petroleum and natural gas.

Key topics and technical requirements

• Scope and applicability: Dynamic leakoff testing for completion fluids (excludes fluids that react with porous media).
• Cell types: Defines two principal test cells - round cell and proppant conductivity cell - with schematics and port identification for inlet/outlet, core placement, gap and leakoff outlet.
• Test parameters:
  • Temperature control: Fluid and cell temperatures measured to ±1 °C and stabilized to within ±3 °C of test temperature.
  • Pressure control: Test (differential) pressure controlled to within ±5% of design pressure; fluid pressure/backpressure definitions provided.
  • Shear rate and shear-history: Shear rate selection and optional shear-history simulator to reproduce field-like shear exposure.
  • Permeability considerations: Notes on dynamic effects for low-permeability (< 1.0 mD) and high-permeability (> 50 mD) formations.
• Test procedure: Core preparation, cell assembly (round and proppant cells), run procedures and filtrate collection.
• Calculations and reporting:
  • Derivation of leakoff coefficients using quadratic regression with time and square-root-of-time variables.
  • Shear rate calculations, calculation examples, and recommended content for test reports.
• Calibration and instrumentation: All calibrations to follow manufacturer recommendations; precision and units guidance (SI with optional USC units).

Applications and users

This standard is used to:

• Evaluate completion fluid performance related to fluid loss and filter-cake formation under flowing/sheared conditions.
• Support selection and optimization of completion and stimulation fluids for drilling, fracturing, gravel-pack and well-completion operations.
• Provide reproducible lab data for R&D, product development, quality control and technical acceptance.

Primary users:

• Petroleum and natural gas service companies, completion fluid manufacturers and testing laboratories.
• Drilling/completion engineers, reservoir engineers and laboratory technicians involved in fluid selection and well-treatment design.

Related standards

• ISO 13503 series (completion fluids and materials), notably:
  • ISO 13503-1: measurement of viscous properties of completion fluids
  • ISO 13503-4: static leakoff testing procedures
  • ISO 13503-5: proppant conductivity testing

EN ISO 13503-6:2014 provides a reproducible, industry-recognized protocol for dynamic leakoff testing, making it essential for laboratories and operators focused on completion fluid performance and well integrity.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2014
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]DNOMXþQDGHODGHO3RVWRSHN]DPHUMHQMHXKDMDQMDWHNRþLQYGLQDPLþQLK
SRJRMLK,62
Petroleum and natural gas industries - Completion fluides and materials - Part 6:
Procedure for measuring leakoff of completion fluids under dynamic conditions (ISO
13503-6:2014)
Erdöl- und Erdgasindustrie - Komplettierungsflüssigkeiten und -materialien - Teil 6:
Verfahren zur Messung des Fluidverlustes von Komplettierungsflüssigkeiten unter
dynamischen Bedingungen (ISO 13503-6:2014)
Industries du pétrole et du gaz naturel - Fluides de complétion et matériaux - Partie 6:
Mode opératoire pour le mesurage de la perte de fluide de complétion sous conditions
dynamiques (ISO 13503-6:2014)
Ta slovenski standard je istoveten z: EN ISO 13503-6:2014
ICS:
75.100 Maziva Lubricants, industrial oils and
related products
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 13503-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2014
ICS 75.100
English Version
Petroleum and natural gas industries - Completion fluides and
materials - Part 6: Procedure for measuring leakoff of completion
fluids under dynamic conditions (ISO 13503-6:2014)
Industries du pétrole et du gaz naturel - Fluides de Erdöl- und Erdgasindustrie - Komplettierungsflüssigkeiten
complétion et matériaux - Partie 6: Mode opératoire pour le und -materialien - Teil 6: Verfahren zur Messung des
mesurage de la perte de fluide par filtration en conditions Fluidverlustes von Komplettierungsflüssigkeiten unter
dynamiques des fluides de complétion (ISO 13503-6:2014) dynamischen Bedingungen (ISO 13503-6:2014)
This European Standard was approved by CEN on 27 October 2012.

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-CENELEC 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-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13503-6:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 13503-6:2014) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration
with 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 2014, and conflicting national standards shall be
withdrawn at the latest by September 2014.
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, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13503-6:2014 has been approved by CEN as EN ISO 13503-6:2014 without any modification.

INTERNATIONAL ISO
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
matériaux —
Partie 6: Mode opératoire pour le mesurage de la perte de fluide par
filtration en conditions dynamiques des fluides de complétion
Reference number
ISO 13503-6:2014(E)
©
ISO 2014
ISO 13503-6:2014(E)
© ISO 2014
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 [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

ISO 13503-6:2014(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2  Terms and definitions . 1
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
7 Calculation examples . 8
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
ISO 13503-6:2014(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 13503-6 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 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
— Part 2: Measurement of properties of proppants used in hydraulic fracturing and gravel-packing
operations
— Part 3: Testing of heavy brines
— Part 4: Procedure for measuring stimulation and gravel-pack fluid leakoff under static conditions
— Part 5: Procedures for measuring the long-term conductivity of proppants
— Part 6: Procedure for measuring leakoff of completion fluids under dynamic conditions
iv © ISO 2014 – All rights reserved

ISO 13503-6:2014(E)
Introduction
The objective of this part of ISO 13503 is to provide a procedure for measuring fluid loss (leakoff) under
dynamic conditions. This procedure was compiled on the basis of several years of comparative testing,
debate, discussion and continued research by the industry.
Dynamic fluid loss testing consists of a simulation of the circulation process where completion fluid
loss occurs at a core face with appropriate shear conditions. Under dynamic conditions, the filter cake
deposition and fluid loss behaviour are different to those of fluid loss under static conditions.
Laboratory leakoff tests have shown that there is a dynamic effect for low-permeability formations,
i.e. < 1,0 mD. This is due to the fact
...