Application for Variation of a Pipeline Licence - Pipeline Licence WA-9-PL (WKWKN5)

Administered by Department of Industry, Science and Resources

Legislation au C2026G00454 In force Gazette

Legislation content

 

COMMONWEALTH OF AUSTRALIA

 

Sections 226 and 708

Offshore Petroleum and Greenhouse Gas Storage Act 2006

 

APPLICATION FOR VARIATION OF A PIPELINE LICENCE - PIPELINE LICENCE WA-9-PL (WKWKN5)

 

I, STEVEN ROBERT TAYLOR, Delegate of the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Western Australia Offshore Petroleum Joint Authority hereby give notice pursuant to sections 226 and 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 that an application has been received from

 

Woodside Energy (North West Shelf) Pty Ltd

(ACN 004 514 489)

 

Chevron Australia Pty Ltd

(ACN 086 197 757)

 

Woodside Energy Ltd.

(ACN 005 482 986)

 

Shell Australia Pty Ltd

(ACN 009 663 576)

 

BP Developments Australia Pty. Ltd.

(ACN 081 102 856)

 

Japan Australia LNG (MIMI) Pty. Ltd.

(ACN 006 303 180)

 

for the variation of Pipeline Licence WA-9-PL in the offshore area of Western Australia, as set out below.

 

Pursuant to subsection 226(3) of the Act, a person may make a written submission to the Titles Administrator about this application within 30 days from the date of this notice.

 

This notice takes effect on the day on which it appears in the
Australian Government Gazette.

 

Made under the Offshore Petroleum and Greenhouse Gas Storage Act 2006

of the Commonwealth of Australia.

 

STEVEN ROBERT TAYLOR

TITLES ADMINISTRATOR

ON BEHALF OF THE COMMONWEALTH–WESTERN AUSTRALIA

OFFSHORE PETROLEUM JOINT AUTHORITY


APPLICATION FOR VARIATION OF

PIPELINE LICENCE WA-9-PL

 

The application seeks to effect the following amendments to the licence:

 

  1.       The ‘ROUTE OF THE PIPELINE’ is varied by deleting the text and replacing it with the following:

 

ROUTE OF THE PIPELINE

 

The route of the pipeline shall be from the plug at GWA SSIV, at or about 387813.74mE, 7 826 755.54mN up to and including the barred tee of the production header on GWA platform as shown in the drawing attached to this licence as annexure ‘A’.  

 

Notes:

1: Australian Geodetic Datum 1984, UTM projection, zone 50, central meridian 117° East

2: Geodetic Reference System (GRS 80), Geocentric Datum Australia 1994, UTM projection, zone 50, central degrees 117°East

 

  1.       The ‘CONDITIONS 1. Design Specifications’ is varied by deleting the text and replacing it with the following:

 

CONDITIONS

 

  1.       Design Specifications

 

Except as otherwise specified in this Schedule the pipeline shall be designed, constructed, tested and operated in accordance with DNV OS F101, and shall generally comply with the exceptions listed below. (See also WEL document “Pipeline Licence Application – Review of MPR exceptions to DNV OS F101, Rev 0 [WEL Doc No. A1892-AG-133873]).

 

  1.                  Hoop stress limited to 72% SMYS;
  2.                Combined stress limited to 90% SMYS for long term exposure;
  3.             Combined stress limited to 90% SMYS with a 0.5% strain limit for occasional exposure;
  4.              Pressure strength test limited to a pressure equivalent to 90% SMYS (1.25 x 72% SMYS) at the highest elevation in any test section.

 

DNV OS F101 is supplemented with additional codes and standards, including:

 

DNV CN30.5

Environmental conditions and Environmental Loads.

DNV DG14

Free Spanning Pipelines

DNV RP B401

CP Design

DNV RP E305

On-Bottom Stability Design of Submarine Pipelines.

 

The pipeline design is based on the following parameters:

 

From

From and including a plug at GWA SSIV (subsea at GWA and 140km northwest of Dampier)

Design minimum temperature (°C)

0°C (DNV zone 1)

Design maximum temperature (°C)

60°C (DNV zone 1)

Length of pipeline (km)

0 (Note 1)

Nominal wall thickness (mm)

Riser, tie-in spools & SSIV piping: 17.5

Pipeline material

Riser, tie-in spools & SSIV piping: Duplex Stainless Steel

Pipe specification

Riser, tie-in spools & SSIV piping: ASTM A790 & ASTM A928

Minimum yield strength (MPa)

Duplex: 448 @20°C

Tees

1 duplex tee: Production header (12” x 12”)

 

Notes:

1: Entire 22.9km of subsea pipeline is removed. Remaining infrastructure is from GWA SSIV to RESDV which is less than 500m.

 

  1.       The ‘CONDITIONS 2. Pipeline System Description’ is varied by deleting the text and replacing it with the following:

 

  1.       Pipeline System Description

 

The pipeline system includes the following:

  • GWA SSIV assembly
  • GWA SSIV assembly / GWA riser tie-in spool
  • GWA riser
  • GWA topsides riser piping.

 

The pipeline system commences at the GWA SSIV assembly. The end of the SSIV assembly is plugged to preserve the remaining section of the pipeline system. The GWA SSIV assembly is situated adjacent to the base of GWA. It comprises the SSIV ball valve, a duplex piping spool, and protection / installation frame. The GWA SSIV assembly / GWA riser tie-in spool connects the GWA SSIV assembly to the GWA riser. The GWA riser is a component of the 38” EY caisson. The caisson also includes two 12” j-tubes, one for the EY electro-hydraulic control umbilical and one for spare for future use. The caisson is located on the north face of GWA. It is external to the jacket to an approximate elevation of -5m (wrt LAT), at this level a swan neck routes the caisson inside the jacket so that it is protected from ship impact. A vertical brace fitted adjacent to the caisson adds further ship impact protection.

 

  1.   Pipeline Valves

 

There are four pipeline (ie 12” NS) valves in the pipeline system. These are:

 

  1.                  SSIV at the base of the GWA riser. This is a ball valve and is fitted with a hydraulic actuator. The actuator is powered by direct hydraulics from GWA. Hydraulic jumpers are split out of the main Yodel umbilical adjacent to the SSIV assembly.
  2.                RESDV at the top of the GWA riser. This is a ball valve and is fitted with a pneumatic actuator. The actuator is powered by the GWA instrument air supply on GWA topsides.
  3.             Two ball valves in a double block and bleed assembly at the pipeline end on GWA for the temporary pig launcher / receiver. These valves are fitted with a manual gearbox.

 

  1.   Pressure and Flow Control

 

Pressure of the remaining infrastructure is monitored by GWA topsides.

 

  1.   Safety and Emergency Shutdown

 

The SSIV is interfaced with the GWA combined safety system. The SSIV, tie-in spool and riser are shutdown and preserved as the EY flowline has been removed and is disconnected from the facility.

 

The existing CONDITIONS of Pipeline Licence WA-9-PL remain as stated in the licence instrument dated 29 October 2001 and varied 23 March 2010.

 

4. Annexure ‘A’ is deleted and replaced with the map at Attachment 1.


ATTACHMENT 1

Overview

The Offshore Petroleum and Greenhouse Gas Storage Act 2006 was enacted to address the need for a regulatory framework governing the exploration for, and production of, petroleum in Australian offshore areas, including the regulation of greenhouse gas storage. This legislation was developed to provide a comprehensive legal structure that ensures environmentally sustainable and economically efficient management of offshore petroleum and greenhouse gas activities. The Act was enacted by the Parliament of Australia, reflecting a policy objective to balance the exploitation of offshore resources with the protection of the marine environment and the interests of regional stakeholders. The Act facilitates the orderly development of Australia's offshore petroleum and greenhouse gas resources, ensuring that exploration and production activities are conducted in a manner that minimises environmental impact and supports economic growth. The Offshore Petroleum and Greenhouse Gas Storage Act 2006 establishes a licensing regime for offshore petroleum activities, including the issuance, variation, and cancellation of pipeline licenses. The Act allows for public consultation and notice provisions, as seen in the recent application for the variation of Pipeline Licence WA-9-PL, demonstrating its role in providing transparency and stakeholder engagement in the regulatory process. The Act aims to ensure that offshore operations are managed in a manner that is safe, environmentally responsible, and economically viable, thereby contributing to Australia's energy security and economic development.

Scope and Application

The Offshore Petroleum and Greenhouse Gas Storage Act 2006 applies to the regulation of petroleum and greenhouse gas activities in Australian offshore areas, including the licensing and regulation of offshore petroleum activities and greenhouse gas storage. This Act provides the legislative framework under which the National Offshore Petroleum Titles Administrator, acting on behalf of the Commonwealth-Western Australia Offshore Petroleum Joint Authority, manages the application for variations to existing pipeline licences. The application in question involves Woodside Energy (North West Shelf) Pty Ltd, Chevron Australia Pty Ltd, Woodside Energy Ltd., Shell Australia Pty Ltd, BP Developments Australia Pty Ltd, and Japan Australia LNG (MIMI) Pty Ltd, seeking to modify the route and design specifications of the Pipeline Licence WA-9-PL, which pertains to the offshore area of Western Australia. The application invites written submissions from interested parties within 30 days of the notice appearing in the Australian Government Gazette. This notice signifies the commencement of the application process and invites public scrutiny and participation, allowing for a transparent and inclusive decision-making process in the regulation of offshore petroleum activities within Australia.

Key Provisions

Pursuant to sections 226 and 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (the Act), the Delegate of the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Western Australia Offshore Petroleum Joint Authority, has issued a notice regarding an application from Woodside Energy (North West Shelf) Pty Ltd, Chevron Australia Pty Ltd, Woodside Energy Ltd, Shell Australia Pty Ltd, BP Developments Australia Pty. Ltd, and Japan Australia LNG (MIMI) Pty Ltd for the variation of Pipeline Licence WA-9-PL in the offshore area of Western Australia. This application seeks to amend the pipeline's route and design specifications, including the pipeline system description and pressure and flow control mechanisms. Under section 226(3) of the Act, any person may make a written submission to the Titles Administrator about this application within 30 days from the date of this notice. The specified changes include altering the pipeline's route from the plug at GWA SSIV to the barred tee of the production header on the GWA platform and updating the design specifications to comply with DNV OS F101. The pipeline system description has also been updated to detail the components and their functions, including the SSIV assembly, GWA riser, and pipeline valves. The Act imposes several obligations on the parties involved in the application for the variation of the pipeline licence. The applicants must ensure that their proposed changes to the pipeline route and design specifications adhere to the requirements set out in the Act and any associated regulations. This includes providing detailed information about the pipeline system, its components, and the safety and emergency shutdown mechanisms. Additionally, the applicants must ensure that the pipeline is designed, constructed, tested, and operated in compliance with the specified standards and codes, such as DNV OS F101 and related documents. Failure to comply with the provisions of the Act and the conditions of the pipeline licence can result in various civil and criminal consequences. The Act provides for penalties, including fines and imprisonment, for breaches of its provisions. For instance, section 708 of the Act specifies that a person who contravenes a condition of a pipeline licence may be liable to a fine not exceeding 50,000 penalty units or imprisonment for a term not exceeding five years, or both, for a single offence. Additionally, the applicants may face legal actions from the Titles Administrator or other relevant authorities if they fail to meet the statutory requirements, which could further result in financial penalties, injunctions, or even the revocation of the pipeline licence.

Legal classification tags

Area of Law
Environmental Law
Instrument
Gazette Notice
Concepts
Definitions & Interpretation
Reporting & Disclosure Obligations
Regulatory Standards

Interactions

Authorises

All Versions

Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.