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CSA - Z341S1:23

Supplement No. 1 to CSA Z341 Series:22, Storage of hydrocarbons in underground formations (application to hydrogen and hydrogen blends)

active, Most Current
Organization: CSA
Publication Date: 1 January 2023
Status: active
Page Count: 35
ICS Code (Fluid storage devices): 23.020
scope:

Applicability

This Supplement sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety storage of hydrogen and hydrogen blends in underground formations and associated equipment. The equipment considered includes

a) storage wellhead and Christmas tree assemblies;

b) wells and subsurface equipment; and

c) safety equipment, including monitoring, control, and emergency shutdown systems.

This Supplement is to be used concurrently with CSA Z341.1 and CSA Z341.2. Unless otherwise specified, all references to hydrocarbons or stored fluids in CSA Z341.1 and CSA Z341.2 mean hydrogen or hydrogen blend. Where no changes are identified in this Supplement, CSA Z341.1 and CSA Z341.2 apply.

This Supplement has been designed to complement provincial and/or federal regulatory frameworks and does not mandate regulatory requirements unless referenced in provincial and/or federal regulations. This Supplement provides advisory guidance that can be followed to demonstrate compliance with local and national codes and regulations and industry best practices. Alternative design codes and standards that are not specified in this Supplement may be used, provided that pertinent local and national regulations are satisfied and that it can be demonstrated that the design meets industry best practices.

There is no established safe percentage of hydrogen that can be blended in an underground storage system without first evaluating, including, but not limited to, existing defects, partial pressure, metallurgy and microstructure, pressure cycling, and percentage of specified minimum yield strength (SMYS) on the wellbore materials and evaluating the reactivity impacts with the storage formation. Where the evaluation of these parameters indicates there is minimal risk from hydrogen, then CSA Z341.1 and CSA Z341.2 apply

This Supplement sets out minimum requirements for the design, materials, and well completion on existing installations and installations under construction at the time of publication. The requirements apply to the testing, operation, extension, conversion, maintenance, and upgrading of such installations.

Scope diagram

The scope of this Supplement for reservoir storage of hydrogen and hydrogen blends is shown in Figure 1 of CSA Z341.1. The scope of this Supplement for salt cavern storage of hydrogen and hydrogen blends is shown in Figure 1 of CSA Z341.2.

Exclusions

This Supplement does not apply to

a) ammonia;

b) methanol;

c) in-situ production of hydrogen; and

d) items in Clause 1.3 in CSA Z341.1 and CSA Z341.2.

Limitations

It is not the intent of this Supplement to prevent the development of new equipment or practices, nor to prescribe how such innovations are to be handled.

Where the requirements of this Supplement differ from the requirements of other standards or codes referenced herein, the requirements of this Supplement take precedence as it was developed specifically for storage of hydrogen and hydrogen blends.

Terminology

In this Supplement, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Supplement; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Supplement.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Document History

Z341S1:23
January 1, 2023
Supplement No. 1 to CSA Z341 Series:22, Storage of hydrocarbons in underground formations (application to hydrogen and hydrogen blends)
Applicability This Supplement sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety storage of hydrogen and hydrogen blends in underground...
January 1, 2022
Storage of hydrocarbons in underground formations
This Standard sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
January 1, 2018
Storage of hydrocarbons in underground formations
This Standard sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
April 1, 2014
Storage of hydrocarbons in underground formations
This Standard sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
January 1, 2014
Storage of hydrocarbons in underground formations
This Standard sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
February 1, 2010
Storage of hydrocarbons in underground formations
This Standard sets out minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
December 1, 2006
Storage of Hydrocarbons in Underground Formations
This Standard sets out the minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground reservoir formations and associated...
March 1, 2004
Storage of Hydrocarbons in Underground Formations
This Standard sets out the minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground formations and associated...
December 1, 2002
Storage of Hydrocarbons in Underground Formations
This Standard sets out the minimum requirements for the design, construction, operation, maintenance, abandonment, and safety of hydrocarbon storage in underground formations and associated...

References

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