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January 31, 2018 / Fari Mahdavi
Category: Industry Support 

Energy Pipelines CRC research uptake in Australian Standards

A significant and important part of the transfer and utilisation of new knowledge generated by the Energy Pipelines CRC is through the adoption of the research findings into the Australian pipeline standard AS 2885. The close link with the AS 2885 committees is maintained through the industry advisors involved in the Energy Pipelines CRC research projects, as most of them are also responsible for maintaining and updating the standard.

The six part Australian Standard, AS 2885: Pipelines–gas and liquid petroleum is used to guide the design, construction, operation and maintenance of hydrocarbon pipelines. This standard is an essential part of the pipeline industry as all Australian state technical regulators require pipelines to comply with AS 2885 before a licence to operate is issued.

The Energy Pipelines CRC has a process by which research outputs can be released to the Standards Australia committees for consideration and inclusion in the relevant standard. In the long term, this will see the Energy Pipelines CRC’s work benefit the whole industry. Below is some examples of the adoption of Energy Pipelines CRC’s research into AS 2885 is provided.

In 2014 the Energy Pipelines CRC successfully completed a comprehensive research program to allow CO2 pipelines to be designed and operated under the Australian Standard AS 2885: Pipelines – Gas and Liquid Petroleum. The most substantial amendment to AS2885 resulting from this R&D program was the addition of Appendix BB (Guidelines for Pipelines for the Transport of CO2). In that same revision of Part 1 (Design and Construction) research on “RP3-02D: Measurement Uncertainty in Hydrostatic Leak Tests” was incorporated in the section related to the leak test uncertainty.

The first outputs from Energy Pipelines CRC research into offshore pipeline systems were incorporated into Part 4 of AS2885 (Submarine Pipeline Systems) in 2016. The research on “RP6.3-05: Shore and Water Crossings Guidelines” provided several recommendations on waterway crossing, pipeline route selection and shoreline crossing to this part of standards.

Moreover, the review of part 2 (Welding) in 2016 considered the outcomes of a suite of projects related to the “Formation Mechanism of WMHACC” (RP1-02) to update Appendix C of this part of that standard that deals with the avoidance of hydrogen assisted cold cracking (HACC).

An extensive review of Part 1 (Design and Construction) was finalised in 2017 considering the recommendations from several Energy Pipelines CRC research projects. The understanding of material property testing, including Drop Weight Tear Test (DWTT) and Charpy impact, are referred to in the latest revision of the standard, in particular findings from research projects “RP6.1-03: AS 2885.1 Toughness Review” and “RP6.1-04: Pipe Size Effect in (DWTT)”.

In the 2017 revision of Part 1, the outcomes of research project “RP3-12: Pressure and Thermal Transients” have been considered in sections of the standard related to the metal pipe temperature during pipe operation and depressurisation (blowdown). The use of EPDECOM software, which is the main outcome of project “RP3-02I: Fracture Control Software”, also has been recommended in Part 1 for calculation of tearing fracture arrest toughness and decompression velocity.

In July 2016, a single and sufficient line pipe specification for Australia was completed. The specification included information for HFW line pipe for mainline gas transmission pipeline application in sizes up to DN650. It also included specification for LSAW line pipe for mainline gas transmission pipeline. This specification was considered as part of the AS2885.1 revision process.

A new Part 6 (Safety Management Systems) was introduced to AS 2885 in 2017. This new part of the standard includes more specific requirements for safety management studies and draws upon the research produced in RP4, in particular in relation to the “as low as reasonably practicable” (ALARP) principle and requirements .

Apart from the inputs to AS 2885, recommendations from RP2 research projects have been considered in AS 4822 (External field joint coatings for steel pipelines) and AS 4645 (Gas distribution network management). Finding of project “RP2-08B: Transient Loss of Cathodic Protection Phase 2” are expected to influence the next revision of AS 2832.1 (Cathodic protection of metals Part 1: Pipes and cables). Moreover, the National Facility for Pipeline Coating Assessment (NFPCA) has provided inputs to AS 4848.1 (Application specifications for coating systems)

If you wish to obtain more information on the above mentioned inputs into the Australian Standards and other impacts of Energy Pipelines CRC research please don’t hesitate to contact us.

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