COMMONWEALTH OF AUSTRALIA
Section 708
Offshore Petroleum and Greenhouse Gas Storage Act 2006
APPLICATION FOR GRANT OF A PIPELINE LICENCE – BAROSSA NEARSHORE GAS EXPORT PIPELINE
I, STEVEN ROBERT TAYLOR, the Delegate of the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Northern Territory Offshore Petroleum Joint Authority hereby give notice pursuant to section 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 that an application has been received from
Santos NA Barossa Pty Ltd
(ACN 109 974 932)
Santos Offshore Pty Ltd
(ACN 005 475 589)
SK E&S Australia Pty Ltd
(ACN 158 702 071)
JERA Barossa Pty Ltd
(ACN 654 004 387)
for the grant of a pipeline licence for the conveyance of petroleum in the offshore area of Northern Territory, as set out below.
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 in 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
DELEGATE OF THE TITLES ADMINISTRATOR
ON BEHALF OF THE COMMONWEALTH-NORTHERN TERRITORY
OFFSHORE PETROLEUM JOINT AUTHORITY
ROUTE OF THE PIPELINE
The pipeline route is described in the table hereunder and displayed in the attached map (Attachment 1), commencing at the tie-in spool at the face of the PLET Hub (PLET B) on the Barossa Gas Export Pipeline (Pipeline Licence NT/PL5) to the Commonwealth and NT Coastal Waters. Coordinates are based on Geodetic Datum of Australia (GDA94)/MGA Zone 52.
Feature Name | KP | Easting (mE) | Northing (mN) | Bend Radius (m) |
Tie-in Spool at Face of PLET Hub* (PLET B) | 262.215 | 598 781.5 | 8 670 772.5 | |
Face of PLET C Hub | 0 | 598 748.4 | 8 670 737.9 | |
TP1A | 5.154 | 601 806.6 | 8 666 588.7 | |
IP1 | — | 602 349.3 | 8 665 852.4 | 3000 |
TP1B | 6.930 | 603 210.4 | 8 665 544.1 | |
TP2A | 17.561 | 613 219.7 | 8 661 961.1 | |
IP2 | — | 614 445.8 | 8 661 522.1 | 10000 |
TP2B | 20.151 | 615 743.4 | 8 661 411.9 | |
Commonwealth/NT Coastal Water Boundary | 23.194 | 618 775.4 | 8 661 154.3 | |
*PLET Hub (PLET B) feature licenced under Pipeline Licence NT/PL5.
SPECIFICATIONS
Design and Construction
The offshore pipeline must be designed and constructed in accordance with Offshore Standard DNV-ST-F101 – Submarine Pipeline Systems (Offshore Pipeline), which is incorporated in its entirety in Australian Standard AS2885.4 – Pipelines, Gas and Liquid Petroleum (Part 4: Submarine Pipelines). Specifically, the design and construction phase of the pipeline must comply with DNVGL-ST-F101.
Basis of Design
The pipeline design is based on the following parameters:
Item | Item Description | Details |
1 | Outside diameter of pipe | 26 inches (nominal) |
2 | Wall thickness of pipe | Tie-in Spool & PLET C: 23.6 mm and 26.0 mm Nearshore GEP: 19.9 mm |
3 | Length | Tie-in Spool and PLET C: 118m (approximate) Nearshore GEP: 23 km to Coastal Waters Boundary (approximate) |
4 | Design life | 25 years (approximate) |
5 | Pipeline Material | Steel |
6 | Pipeline Steel Grade | DNV-ST-F101 Grade 450 |
7 | Pipeline Specification | Tie-in Spool & PLET C: DNV SAWL 450 F D S U Nearshore GEP: DNV SAWL 450 F D S |
8 | Minimum yield strength of pipe steel | 450 MPa |
9 | Maximum Allowable Incidental Pressure | 20.8 MPa |
10 | Design Capacity | 730 MMscf/d |
11 | Maximum Design Temperature | 50°C |
12 | Minimum Design Temperature | 0°C |
13 | Characteristics of substance proposed to be conveyed | Dehydrated natural gas |
14 | General plans and descriptions of pump stations, tank stations or valve stations and their equipment | N/A |
15 | General plans and description of pigging facilities | The pipeline is designed to enable operational inspection pigging to be performed, which is required based on a risk-based inspection regime. The riser base manifold is equipped with a full-bore connection point, isolated by two (2) 26” valves, to facilitate the installation and removal of a subsea pig launcher by diverless means. The riser base manifold, PLETs, spools and pipeline sections are designed to facilitate through pigging to onshore pig receipt facilities at DLNG. |
16 | Cathodic Protection | Aluminium-Zinc-Indium Anodes DNV-RP-F103 Tie-in Spool & PLET C: Bracelet anodes Nearshore GEP: Typically spaced at 1 anode every six (6) pipe joints. |
17 | Hydrate Management | Hydrate management in the gas export pipeline is not required as the pipeline is classified as a dry gas pipeline. |
NEARSHORE GAS EXPORT PIPELINE ROUTE
Overview
The Offshore Petroleum and Greenhouse Gas Storage Act 2006, enacted by the Commonwealth Parliament, aims to regulate the exploration, production, and storage of offshore petroleum and greenhouse gas in Australia. This legislation provides a comprehensive framework for the management of offshore petroleum activities, including the granting of pipeline licences necessary for the transport of petroleum products. The Act was introduced to address the need for a robust legal structure to oversee and control offshore petroleum operations, ensuring they are conducted in a manner that is safe, environmentally responsible, and economically viable. The policy objective of the Act is to facilitate the sustainable development of Australia's offshore petroleum resources while protecting the environment and ensuring the safety of operations.
This particular notice under the Act pertains to an application for the grant of a pipeline licence for the Barossa Nearshore Gas Export Pipeline by Santos NA Barossa Pty Ltd, Santos Offshore Pty Ltd, SK E&S Australia Pty Ltd, and JERA Barossa Pty Ltd. The application, which includes detailed specifications for the design and construction of the pipeline, seeks to establish a pipeline route for the conveyance of petroleum in the offshore area of the Northern Territory. The notice allows for public submissions within a specified period, enabling stakeholders to provide feedback on the proposed pipeline project. This process ensures transparency and public participation in the regulatory framework established by the Act.
Scope and Application
The Offshore Petroleum and Greenhouse Gas Storage Act 2006 applies to the pipeline licence application submitted by Santos NA Barossa Pty Ltd, Santos Offshore Pty Ltd, SK E&S Australia Pty Ltd, and JERA Barossa Pty Ltd for the conveyance of petroleum in the offshore area of the Northern Territory. This application is under the purview of the Commonwealth-Northern Territory Offshore Petroleum Joint Authority, as designated by the Delegate of the National Offshore Petroleum Titles Administrator, Steven Robert Taylor. The legislation mandates that the offshore pipeline must be designed and constructed according to the Offshore Standard DNV-ST-F101, incorporated in Australian Standard AS2885.4, ensuring compliance with the detailed specifications provided. The pipeline, intended for the transport of dehydrated natural gas, is planned to have a 26-inch outside diameter, with a design life of approximately 25 years. The application is open for public submissions for 30 days from the date of this notice, and the notice becomes effective upon its publication in the Australian Government Gazette. The scope of the Act is specific to the offshore area of the Northern Territory, and any exclusions, exemptions, or thresholds are detailed within the application and its accompanying documentation.
Key Provisions
The Offshore Petroleum and Greenhouse Gas Storage Act 2006 (section 708) mandates that the Delegate of the National Offshore Petroleum Titles Administrator must provide public notice when an application for a pipeline licence is received. In this instance, the application for a pipeline licence for the conveyance of petroleum in the Northern Territory offshore area has been submitted by Santos NA Barossa Pty Ltd, Santos Offshore Pty Ltd, SK E&S Australia Pty Ltd, and JERA Barossa Pty Ltd. This notice allows the public to make written submissions about the application within 30 days of the notice appearing in the Australian Government Gazette. The pipeline is intended to transport dehydrated natural gas from the Barossa Gas Export Pipeline (Pipeline Licence NT/PL5) to the Commonwealth and Northern Territory Coastal Waters.
Under the Act, the applicant is required to design and construct the offshore pipeline in accordance with the Offshore Standard DNV-ST-F101 – Submarine Pipeline Systems, as incorporated in Australian Standard AS2885.4 – Pipelines, Gas and Liquid Petroleum. The pipeline must be designed to withstand various environmental and operational conditions, including a design life of approximately 25 years, a maximum allowable incidental pressure of 20.8 MPa, and a design capacity of 730 MMscf/d. The pipeline must also be capable of withstanding temperatures ranging from 0°C to 50°C and be constructed from steel with a minimum yield strength of 450 MPa. Additionally, the pipeline is designed to enable operational inspection pigging and is equipped with cathodic protection using Aluminium-Zinc-Indium Anodes DNV-RP-F103.
The Act imposes obligations on the parties involved, including the requirement to ensure that the pipeline is constructed and operated in a manner that does not cause harm to the environment, the marine area, or any other property. The applicants must also comply with the conditions and restrictions imposed by the Titles Administrator, including any conditions related to the design, construction, operation, and maintenance of the pipeline. Failure to comply with the requirements of the Act may result in enforcement actions, including the revocation of the pipeline licence, fines, and other penalties. The specific penalties for non-compliance are not detailed in the notice, but they may be found in the relevant sections of the Act and associated regulations.