BS EN ISO 15156-3:2020

This document gives requirements and recommendations for the selection and qualification of CRAs (corrosion-resistant alloys) and other alloys 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 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 materials to damage that can be caused by sulfide stress cracking (SSC), stress corrosion cracking (SCC), and galvanically induced hydrogen stress cracking (GHSC).This document is concerned only with cracking. Loss of material by general (mass loss) or localized corrosion is not addressed.Table1 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 ISO15156-1:2020, Clause5.This document is not necessarily suitable for application to equipment used in refining or downstream processes and equipment. Table1 List of equipment This document is applicable to materials used for thefollowing equipment Exclusions Drilling, well construction, and well-servicingequipment Equipment exposed only to drilling fluids of controlledcomposition a Drill bits Blowout-preventer (BOP) shear blades b Drilling riser systems Work strings Wireline and wireline equipment c Surface and intermediate casing Wells including subsurface equipment, gas liftequipment, wellheads, and christmas trees Sucker rod pumps and sucker rods d Electric submersible pumps Other artificial lift equipment Slips Flow-lines, gathering lines, field facilities, and fieldprocessing plants Crude oil storage and handling facilities operating ata total absolute pressure below 0,45MPa (65psi) Water-handling equipment Water-handling facilities operating at a total absolutepressure below 0,45MPa (65psi) Water injection and water disposal equipment Natural gas treatment plants — Transportation pipelines for liquids, gases, andmulti-phase fluids Lines handling gas prepared for general commercialand domestic use For all equipment above Components loaded only in compression a See ISO15156-2:2020, A.2.3.2.3 for more information. b See ISO15156-2:2020, A.2.3.2.1 for more information. c Wireline lubricators and lubricator connecting devices are not excluded. d For sucker rod pumps and sucker rods, reference can be made to NACEMR0176 .