With little fanfare, the Canadian Standards Association has announced on its website that it is conducting a review of the standards for pipelines and LNG facilities in this country, including marine terminals.
The CSA is asking for input in updating the standards, with the deadline for Liquefied natural gas (LNG) — Production, storage, and handling (New Edition) starting on January 20 and ending on March 21, 2014. The review of Oil and gas pipeline systems (New Edition) began on Dec.23,2013 with a deadline of Feb. 23, 2014.
There are more details and information on how to contact the CSA on the web pages.
LNG Standards
Draft Scope/Description:
1 Scope
1.1
This Standard applies to the
(a) design;
(b) location;
(c) construction;
(d) operation; and
(e) maintenance
of facilities for the liquefaction of natural gas and facilities for the storage, vaporization, transfer, handling, and truck transport of LNG. It also contains requirements for the training of personnel.1.2 1
For facilities that load or unload LNG from a marine vessel, this Standard contains requirements for the interconnecting piping between the loading/unloading arm flange and the storage tank(s), and other piping and appurtenances on the pier or jetty itself.
1.3
This Standard applies to all containers for the storage of LNG, including those with insulation systems applying a vacuum.
1.4
This Standard does not apply to frozen ground containers.
1.5
This Standard includes non-mandatory guidelines for
(a) small LNG facilities (see the definition of “small facility” in Clause 3 and see Annex B); and
(b) LNG vehicle fuelling stations employed for fleet and public LNG vehicle fuel dispensing operations (see the definition of “fuelling station” in Clause D.2 and see Annex D).
1.6
This Standard does not apply to the following:
(a) the transportation of refrigerants by any means;
(b) the transportation of LNG by railcar or marine vessel;
(c) the transportation of LNG or regasified LNG by pipeline beyond the facility boundary, except as specified in Clause 1.2; and
(d) facilities designed to allow the use of LNG as a fuel for railroad locomotives, or marine vessels.
1.7
All references to pressure throughout this Standard refer to gauge pressures unless otherwise specified.
1.8
All pipe sizes refer to nominal pipe sizes (NPS).
1.9
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
1.10
In CSA standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “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 standard.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 (nonmandatory) to define their application.
Oil and gas pipeline systems
Draft Scope/Description:
1.1
This Standard covers the design, construction, operation, and maintenance of oil and gas industry pipeline systems that convey
(a) liquid hydrocarbons, including crude oil, multiphase fluids, condensate, liquid petroleum products, natural gas liquids, and liquefied petroleum gas;
(b) oilfield water;
(c) oilfield steam;
(d) liquid or dense phase carbon dioxide; or
(e) gas.Notes:
(1) Vapour phase carbon dioxide pipeline systems fall under item (e).
(2) Designers are cautioned that the requirements in this Standard might not be appropriate for gases other than natural gas, manufactured gas, or synthetic natural gas.
1.2
The scope of this Standard, as shown in Figures 1.1 and 1.2, includes
(a) for oil industry fluids, piping and equipment in offshore pipelines, onshore pipelines, tank farms, pump stations, pressure-regulating stations, and measuring stations;
(b) oil pump stations, pipeline tank farms, and pipeline terminals;
(c) pipe-type storage vessels;
(d) carbon dioxide pipeline systems;
(e) for gas industry fluids, piping and equipment in offshore pipelines, onshore pipelines, compressor stations, measuring stations, and pressure-regulating stations;
(f) gas compressor stations; and
(g) gas storage lines and pipe-type and bottle-type gas storage vessels.1.3
This Standard does not apply to
(a) piping with metal temperatures below –70 °C;
(b) piping (except oilfield steam distribution piping) with metal temperatures above 230 °C;
(c) gas piping beyond the operating company’s gas distribution system (covered by CAN/CSA-B149.1);
(d) piping in natural gas liquids extraction plants, gas processing plants (except main gas stream piping in dehydration and all other processing plants installed as part of gas pipeline systems), gas manufacturing plants, industrial plants, and mines;
(e) oil refineries, terminals other than pipeline terminals, and marketing bulk plants;
(f) abandoned piping;
(g) in-plant piping for drinking, make-up, or boiler feed water;
(h) casing, tubing, or pipe in oil or gas wells, wellheads, separators, production tanks, and other production facilities;
(i) vent piping for waste gases of any kind operating at or near atmospheric pressure;
(j) heat exchangers;
(k) liquefied natural gas systems (covered by CSA Z276);
(l) liquid fuel distribution systems;
(m) loading/unloading facilities for tankers or barges;
(n) refuelling facilities; and
(o) hydrocarbon storage in underground formations and associated equipment (covered by CSA Z341 Series).1.4
This Standard is intended to establish essential requirements and minimum standards for the design, construction, operation, and maintenance of oil and gas industry pipeline systems. This Standard is not a design handbook, and competent engineering judgment should be employed with its use.
Note: For steel pipe of grade higher than Grade 555, requirements in addition to those specified in this Standard might be needed. Matters that should be considered include joining, thermal aging effects during coating application, strain capacity (including cold bending), pressure testing, assessment of imperfections, and repair.
1.5
1.5.1
The requirements of this Standard are applicable to the operation, maintenance, and upgrading of existing installations; however, it is not intended that such requirements be applied retroactively to existing installations insofar as design, materials, construction, and established operating pressures are concerned.
1.5.2
Where class locations change pipelines in such locations shall be subject to the requirements for design factor, location factor, valve spacing, depth of cover and clearance, materials, pressure testing, historical repair methods and repair criteria for the higher class location, or shall be subjected to an engineering assessment to determine the suitability of the pipeline for service in the changed class location (see Clause 10.7.1).
1.6
Unless otherwise stated, to determine conformance with the specified requirements, it is intended that observed or calculated values be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of ASTM E29.
1.7
Where any requirements of this Standard are at variance with the requirements of other publications referenced in this Standard, it is intended that the requirements of this Standard govern.
1.8
It is not the intent of this Standard to prevent the development of new equipment or practices, or to prescribe how such innovations are to be handled.
1.9
In CSA standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “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 standard. 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 (nonmandatory) to define their application