BS EN ISO 15156-2:2020

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Petroleum and natural gas industries. Materials for use in H2S-containing environments in oil and gas production – Cracking-resistant carbon and low-alloy steels, and the use of cast irons

Published By	Publication Date	Number of Pages
BSI	2020	56

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Categories: 75.180.10 - Exploratory, drilling and extraction equipment, BSI

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Description

This document gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels for service in equipment used in oil and natural gas production and natural gas treatment plants in H₂S-containing environments, whose failure can pose a risk to the health and safety of the public and personnel or to the environment. It can be applied to help to avoid costly corrosion damage to the equipment itself. It supplements, but does not replace, the materials requirements of the appropriate design codes, standards or regulations.

This document addresses the resistance of these steels to damage that can be caused by sulfide stress cracking (SSC) and the related phenomena of stress-oriented hydrogen-induced cracking (SOHIC) and soft-zone cracking (SZC).

This document also addresses the resistance of these steels to hydrogen-induced cracking (HIC) and its possible development into stepwise cracking (SWC).

This document is concerned only with cracking. Loss of material by general (mass loss) or localized corrosion is not addressed.

Table 1 provides a non-exhaustive list of equipment to which this document is applicable, including exclusions.

This document applies to the qualification and selection of materials for equipment designed and constructed using load controlled design methods. For design utilizing strain-based design methods, see ISO 15156-1:2020, Clause 5.

Annex A lists SSC-resistant carbon and low alloy steels, and A.2.4 includes requirements for the use of cast irons.

This document is not necessarily suitable for application to equipment used in refining or downstream processes and equipment.

Table 1

List of equipment

See A.2.3.2.3 for more information.

See A.2.3.2.1 for more information.

Wireline lubricators and lubricator connecting devices are not excluded.

For sucker rod pumps and sucker rods, reference can be made to NACE MR0176 .

PDF Catalog

PDF Pages	PDF Title
2	undefined
4	European foreword Endorsement notice
6	Foreword
7	Introduction
8	1 Scope
9	2 Normative references
10	3 Terms and definitions
13	4 Symbols and abbreviated terms
14	5 Purchasing information 6 Factors affecting the behaviour of carbon and low alloy steels in H2S-containing environments
15	7 Qualification and selection of carbon and low-alloy steels with resistance to SSC, SOHIC and SZC 7.1 Option 1 — Selection of SSC-resistant steels (and cast irons) using A.2 7.1.1 For < 0,3 kPa (0,05 psi) 7.1.2 For ≥ 0,3 kPa (0,05 psi) 7.2 Option 2 — Selection of steels for specific sour-service applications or for ranges of sour service 7.2.1 Sulfide stress cracking
17	7.2.2 SOHIC and SZC 7.3 Hardness requirements 7.3.1 General 7.3.2 Parent metals
18	7.3.3 Welds
23	7.4 Other fabrication methods 8 Evaluation of carbon and low alloy steels for their resistance to HIC/SWC
24	9 Marking, labelling, and documentation
25	Annex A (normative) SSC-resistant carbon and low alloy steels (and requirements and recommendations for the use of cast irons)
34	Annex B (normative) Qualification of carbon and low-alloy steels for H2S service by laboratory testing
42	Annex C (informative) Determination of H2S partial pressure and use of alternative parameters
47	Annex D (informative) Recommendations for determining pH
52	Annex E (informative) Information that should be supplied for material purchasing
54	Bibliography

Additional information

Committee	PSE/17
Wells, including subsurface equipment, gas lift equipment, wellheads and christmas trees	Sucker rod pumps and sucker rods d Electric submersible pumps Other artificial lift equipment Slips
Descriptors	Natural gas extraction, Environment (working), Low-alloy steels, Cracking, Hydrogen sulfide, Unalloyed steels, Metals, Petroleum technology, Cast-iron, Steels, Petroleum extraction, Alloys, Fracture, Corrosion-resistant materials, Gas technology, Stress corrosion
Identical National Standard Of	EN ISO 15156-2, ISO 15156-2
Transportation pipelines for liquids, gases and multiphase fluids	Lines handling gas prepared for general commercial and domestic use
Standard Number	BS EN ISO 15156-2:2020
ISBN	978 0 539 06870 2
Publication Date	2020-12-02
For all equipment above	Components loaded only in compression
Pages	56
Publisher	BSI
Replaces	BS EN ISO 15156-2:2015, BS EN ISO 15156-2:2015
Title	Petroleum and natural gas industries. Materials for use in H2S-containing environments in oil and gas production – Cracking-resistant carbon and low-alloy steels, and the use of cast irons
Flow-lines, gathering lines, field facilities and field processing plants	Crude oil storage and handling facilities operating at a total absolute pressure below 0,45 MPa (65 psi)
Drilling, well construction and well-servicing equipment	Equipment exposed only to drilling fluids of controlled composition a Drill bits Blowout preventer (BOP) shear blades b Drilling riser systems Work strings Wireline and wireline equipment c Surface and intermediate casing
Natural gas treatment plants	—
Water-handling equipment	Water-handling facilities operating at a total absolute pressure below 0,45 MPa (65 psi) Water injection and water disposal equipment
Status	Definitive
ICS Codes	75.180.10 - Exploratory, drilling and extraction equipment

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