prEN ISO 17078-1

• Abstract:

  ISO 17078:2004 provides requirements for side-pocket mandrels used in the petroleum and natural gas industry. This part of ISO 17078 includes specifying, selecting, designing, manufacturing, quality control, testing, and preparation for shipping of side-pocket mandrels.; This part of ISO 17078:2004 does not address nor include requirements for end connections between the side-pocket mandrels and the well conduit. The installation and retrieval of side-pocket mandrels is outside the scope of this part of ISO 17078:2004. Additionally, this part of ISO 17078:2004 does not include specifications for centre-set mandrels, or mandrels that employ or support tubing-retrievable flow control devices.; This part of ISO 17078:2004 does not include gas-lift or any other flow-control valves or devices, latches, and/or associated wire line equipment that can or cannot be covered in other ISO specifications.; The side-pocket mandrels to which this part of ISO 17078:2004 refers are independent devices that can accept installation of flow-control or other devices down-hole.

• Status: Not Published
• Publication Date: 06-Mar-2028
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• 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: 4020 - Submission to enquiry - Enquiry
• Start Date: 17-Sep-2026
• Completion Date: 17-Sep-2026
• Ref Project: oSIST prEN ISO 17078-1:2026 - Oil and gas industries including lower carbon energy - Drilling, production and injection equipment - Part 1: Side-pocket mandrels (ISO/DIS 17078-1:2026)

• Revises: EN ISO 17078-1:2004 - Petroleum and natural gas industries - Drilling and production equipment - Part 1: Side-pocket mandrels (ISO 17078-1:2004)
• Effective Date: 18-Sep-2024
• Revises: EN ISO 17078-1:2004/A1:2010 - Petroleum and natural gas industries - Drilling and production equipment - Part 1: Side-pocket mandrels - Amendment 1 (ISO 17078-1:2004/Amd 1:2010)
• Effective Date: 18-Sep-2024

Overview

prEN ISO 17078-1 is a draft standard for the oil and gas industries including lower carbon energy. It focuses on drilling, production, and injection equipment, specifically side-pocket mandrels used in petroleum and natural gas wells.

This standard is important for organizations involved in the design, manufacture, quality control, testing, and shipping preparation of side-pocket mandrels. It supports consistent expectations for equipment used in downhole applications where reliability, material selection, and documented manufacturing practices matter.

The document also reflects current industry needs by addressing standard designs and high pressure and/or high temperature (HPHT) equipment. It is a supplement to API Spec 19G1, 2nd edition (2019) and aligns with ISO and CEN cooperation in standardization.

Key Topics

This draft standard covers practical requirements for side-pocket mandrels, including:

• Specification and selection of side-pocket mandrels
• Design and manufacturing requirements
• Quality control and testing
• Preparation for shipping to protect critical components
• Material selection for demanding environments
• Surface-hardened layer thickness testing
• Packaging requirements for transport and storage

It also includes supplementary requirements for use in high CO2-containing environments, helping support material performance in gas injection and gas production wells. In addition, the standard references sour service conditions and relevant supporting standards for quality and material evaluation.

Important scope limits are also defined. This part does not cover:

• End connections between the mandrel and the well conduit
• Installation and retrieval procedures
• Center-set mandrels
• Tubing-retrievable flow control devices
• Gas-lift valves, latches, or wireline equipment

These boundaries help users understand exactly where the standard applies and where other specifications may be needed.

Applications

Side-pocket mandrels are independent downhole devices that can accept installation of flow-control or other equipment. As a result, prEN ISO 17078-1 is relevant to a wide range of field and engineering activities, such as:

• Oil and gas well completion
• Production system design
• Injection well equipment planning
• Downhole tool manufacturing
• Quality assurance for well intervention equipment
• HPHT and CO2-rich operating environments

For asset owners, manufacturers, and suppliers, the standard offers a useful framework for improving consistency, supporting procurement decisions, and meeting technical requirements in critical well applications.

Related Standards

prEN ISO 17078-1 is closely connected with several referenced standards and documents, including:

• API Spec 19G1, 2nd edition (2019) - the base document supplemented by this draft
• ISO 9000 - quality management fundamentals and vocabulary
• ISO 17348 - materials selection for high CO2 environments
• ISO 18203 - measurement of surface-hardened layer thickness
• API TR 1PER15K-1 - verification and validation of HPHT equipment

For professionals searching for ISO side-pocket mandrel requirements, oil and gas drilling equipment standards, or downhole production equipment specifications, prEN ISO 17078-1 provides a focused and practical reference.

SLOVENSKI STANDARD
01-november-2026
Naftna in plinska industrija, vključno z nizkoogljično energijo - Vrtalna in
proizvodna oprema - 1. del: Vpenjalna os s stranskimi žepi (ISO/DIS 17078-1:2026)
Oil and gas industries including lower carbon energy - Drilling, production and injection
equipment - Part 1: Side-pocket mandrels (ISO/DIS 17078-1:2026)
Erdöl- und Erdgasindustrie - Bohr- und Fördereinrichtungen - Teil 1: Gasliftventile
(ISO/DIS 17078-1:2026)
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone -
Équipement de forage, de production et d'injection - Partie 1: Raccords à poche latérale
(ISO/DIS 17078-1:2026)
Ta slovenski standard je istoveten z: prEN ISO 17078-1
ICS:
75.180.10 Oprema za raziskovanje, Exploratory, drilling and
vrtanje in odkopavanje extraction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 17078-1
ISO/TC 67/SC 4
Oil and gas industries including
Secretariat: ANSI
lower carbon energy — Drilling,
Voting begins on:
production and injection
2026-09-17
equipment —
Voting terminates on:
2026-12-10
Part 1:
Side-pocket mandrels
ICS: 75.180.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 17078-1:2026(en)
DRAFT
ISO/DIS 17078-1:2026(en)
International
Standard
ISO/DIS 17078-1
ISO/TC 67/SC 4
Oil and gas industries including
Secretariat: ANSI
lower carbon energy — Drilling,
Voting begins on:
production and injection
equipment —
Voting terminates on:
Part 1:
Side-pocket mandrels
ICS: 75.180.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 17078-1:2026(en)
ii
ISO/DIS 17078-1:2026(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Supplements to API Spec 19G1, 2nd edition (2019) . 2
4.1 General requirements .2
4.2 Technical specification .2
Bibliography . 4

iii
ISO/DIS 17078-1:2026(en)
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
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
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This document was prepared by Technical Committee ISO/TC 67, Oil and gas industries including lower carbon
energy, Subcommittee SC 4, Drilling, production and injection equipment, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 12, Oil and gas industries including lower
carbon energy, in accordance with the Agreement on technical coope
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