This new edition of the CSA Z662 standard (fifth edition) supersedes the previous editions published in 2003, 1999, 1996, and 1994. The scope for this standard is listed below.
This package also includes the corresponding updated (third edition) Special Publication CSA Z662.1-07, Commentary on CSA Z662-07, Oil and Gas Pipeline Systems. The purpose of the Commentary is to provide background information concerning certain clauses and requirements in the Standard, to provide information that can be of assistance to the reader in the understanding and implementation of such requirements, and to refer to research materials that were used during the formulation of some of the requirements in the Standard. The clause headings and numbers used in this Commentary correspond to those in the Standard; however, it should be noted that comments have not been provided for all the clauses of the Standard. Please note that this Commentary is not part of the Standard, and it has not been formally reviewed or approved by the Technical Committee responsible for CSA Z662. It does not provide formal interpretations of the Standard and should be viewed as an informal annotation of portions of the Standard, as compiled by several individuals who were involved in its development.
Intended Use
This Standard covers the design, construction, operation and maintenance of oil and gas industry pipeline systems. Please refer to the scope (Clause 1) for a complete description of what is covered in this standard.
This Standard is also published with a Commentary which provides background information concerning certain clauses and requirements in the Standard. It is not part of the Standard and has not been formally reviewed or approved by the Technical Committee responsible for CSA Z662. Its intent is to provide information that can be of assistance to the reader in the understanding and implementation of such requirements, and to refer to research materials that were used during the formulation of some of the requirements in the Standard.
Scope
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) carbon dioxide used in oilfield enhanced recovery schemes; or (e) gas. Note: 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) for carbon dioxide pipeline systems, piping and equipment in onshore pipelines, pressure-regulating stations, and measuring stations; (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 outlet of the customer's meter set assembly (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, strain capacity (including cold bending), pressure testing, assessment of imperfections, and repair.
1.5 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.
