Application for Grant of a Pipeline Licence - Scarborough

Administered by Department of Industry, Science and Resources

Legislation au C2021G00812 In force Gazette

Legislation content

 

COMMONWEALTH OF AUSTRALIA

 

Section 708

Offshore Petroleum and Greenhouse Gas Storage Act 2006

 

APPLICATION FOR GRANT OF A PIPELINE LICENCE - SCARBOROUGH

 

I, GRAEME ALBERT WATERS, the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Western Australia 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

 

Woodside Energy Scarborough Pty Ltd

(ACN 650 177 227)

 

BHP Petroleum (Australia) Pty Ltd

(ACN 006 923 879)

 

for the grant of a pipeline licence for the conveyance of petroleum in the offshore area of Western Australia, 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.

 

GRAEME ALBERT WATERS

TITLES ADMINISTRATOR

ON BEHALF OF THE COMMONWEALTH-WESTERN AUSTRALIAN

OFFSHORE PETROLEUM JOINT AUTHORITY

 

 

 

 

 

 

 


ROUTE OF THE PIPELINE

 

The pipeline route is described in the table hereunder and displaced in the attached map (Attachment 1), commencing at the Export Riser Base Manifold downstream connector to the State Water Boundary within a 100 m corridor (± 50 m centred on the pipeline). Coordinates are based on Geodetic Datum of Australia (GDA94).

 

Feature ID

Feature Name

KP

Easting

(mE)

Northing

(mN)

1

Export Riser Base Manifold

N/A

105 648.04

7 793 907.57

2

PLET

433.053

105 628.95

7 793 941.16

3

HTTA-1

365.756

168 690.73

7 787 325.82

4

HTTA-2

280.344

243 346.71

7 814 371.94

5

ILTA

200.051

314 668.33

7 795 028.78

6

32-inch to 36-inch Transition

200.000

314 690.09

7 794 982.33

7

State Waters Boundary

32.036

468 969.58

7 749 700.76

 

SPECIFICATIONS

 

Design and Construction

 

The offshore pipeline must be designed and constructed in accordance with Offshore Standard DNVGL-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 and units

1 

Outside diameter (OD) of pipe

Section

OD [mm]

Nominal OD [in]

KP 32.036 to 33.1

925.4

36

KP 33.1 to 200

924.8

KP 200 to 204

814.6

32

KP 204 to 213

838.0

KP 213 to 324

827.6

KP 324 to 433.053

823.2

Buckle Arrestors

890.0

Structures Piping Header

838.0

Tee Branch

406.4

16

Spool line pipe

826.8

32

Spool bends

837.8

2 

Wall thickness of pipe (all materials)

Section

Thickness [mm]

KP 32.036 to 33.1

30.7

KP 33.1 to 200

30.4

KP 200 to 204

27.3

KP 204 to 213

39.0

KP 213 to 324

33.8

KP 324 to 433.053

31.6

Buckle Arrestors

65.0

Structures Piping Header

39.0

Tee Branch

30.0

Spool line pipe

33.4

Spool bends

38.9

3 

Length

Approximate length in Commonwealth waters:

401.017 km (KP 32.036 – KP 433.053)

4 

Design life

Minimum 25 years

5 

Pipeline Material

Carbon Steel

6 

Pipeline Steel Grade

DNVGL-ST-F101 Grade 450 DFU

7 

Protective coating

External corrosion coating is either 3.5 mm three layer polypropylene or 6.0 mm bituminous enamel with concrete weight coating (40 mm - 110 mm).

Tie-in spool between the riser base manifold and pipeline end termination has ultra-high build epoxy external coating.

8 

Corrosion allowances

Internal: 1.0 mm

External: None (0 mm)

9 

Pipeline Specification

DNVGL-ST-F101: SAWL 450 DFU

10 

Minimum yield strength of pipe steel

450 MPa

11 

Maximum Allowable Operating Pressure

23 MPa(a) at platform export discharge at 30 m above mean sea level

12 

Design Capacity

1,750 MMscf/d

13 

Inlet and outlet facilities

Inlet: Riser base manifold

Outlet: N/A (Pipeline transitions into state waters)

14 

Fitting, valve and flange specifications

Fittings

      32-inch x 16-inch reducing tee (3 off), DNVGL-ST-F101, ASME VIII, DNVGL-RP-0034.

      36-inch x 32-inch concentric transition forging (1 off), DNVGL-ST-F101, DNVGL-RP-0034.

Diverless Connectors

      32-inch horizontal connector (2 off), DNVGL-ST-F101, API 6A/ISO 10423, API 17D/ISO 13628-4.

      16-inch horizontal connector (1 off), DNVGL-ST-F101, API 6A/ISO 10423, API 17D/ISO 13628-4.

Valves

      32-inch ROV operated subsea valve for PLET (1 off), DNVGL-ST-F101, ISO 14723.

      16-inch ROV operated subsea valve for Tee (2 off), DNVGL-ST-F101, ISO 14723.

      Small bore bleed assemblies (2 off), DNVGL-ST-F101, ISO 14723.

15 

Compressor stations

No compressor stations

16 

Maximum Design Temperature

60.0 °C

17 

Minimum Design Temperature

-10 °C

18 

Characteristics of substance proposed to be conveyed

Dry gas

19 

General plans and descriptions of pump stations, tank stations or valve stations and their equipment

The riser base manifold collects export gas via three flexible risers. A 32-inch tie-in spool connects the riser base manifold to the pipeline end termination.

The pipeline end termination is on the end of the 32-inch section at KP 433.053.

Between the pipeline end termination and KP 200 the pipeline has two hot tap tee assemblies and a single in-line tee assembly.

At KP 200, the pipeline transitions to 36-inch diameter.

Between KP 200 and the state water boundary at KP 32.036 there are no facilities.

20 

General plans and description of pigging facilities

Temporary subsea pig launcher/receiver connected to the Export Riser Base Manifold using a diverless connector and a permanent pig receiver onshore at the Pluto LNG plant site

21 

Cathodic Protection

A sacrificial cathodic protection system consisting of full bracelet anodes (Al-Zn-ln Alloy) that are strapped and electrically connected to the pipeline.

Anode spacing varies between 73.2 m and 292.8 m with an approximate total quantity of 3,129 anodes.

Cathodic protection of structures consists of sacrificial stand off anodes (Al-Zn-ln Alloy) installed on the structure members.  The tie-in spool will be protected by anodes placed on the riser base manifold structure.

22 

Hydrate Management

Dehydrating and hydrocarbon dew-pointing the export gas.

 

Attachment 1

Overview

The Offshore Petroleum and Greenhouse Gas Storage Act 2006 was enacted by the Parliament of Australia to address the need for a regulatory framework governing offshore petroleum activities, including the granting of pipeline licences for the transportation of petroleum. This Act serves to provide a comprehensive legal basis for the management and regulation of offshore petroleum activities within Australia's jurisdiction. The policy objective of this legislation is to ensure the safe and environmentally responsible exploration, production, and transportation of petroleum resources in Australia's offshore areas. The Act empowers the Commonwealth-Western Australia Offshore Petroleum Joint Authority to administer and enforce the regulatory requirements concerning pipeline licences, thereby facilitating the development of offshore petroleum resources while mitigating potential risks to the environment and human health. The enactment of this Act has been pivotal in establishing a structured and authoritative approach to managing offshore petroleum activities, ensuring that these operations are conducted in a manner that is both economically viable and environmentally sustainable. By providing a clear legislative framework, the Act aims to balance the interests of resource development with the imperative of environmental protection and public safety. Through the authority granted under this Act, the Titles Administrator can process applications for pipeline licences, such as the one made by Woodside Energy Scarborough Pty Ltd and BHP Petroleum (Australia) Pty Ltd, and manage the associated risks through rigorous regulatory oversight.

Scope and Application

The Offshore Petroleum and Greenhouse Gas Storage Act 2006 governs the grant of pipeline licences for the conveyance of petroleum in Australian offshore areas, applying to both natural persons and corporate entities involved in offshore petroleum activities. Specifically, this legislation applies to the application by Woodside Energy Scarborough Pty Ltd and BHP Petroleum (Australia) Pty Ltd for a pipeline licence in the offshore area of Western Australia. The Act’s jurisdictional reach is national, as it is a Commonwealth Act, but it applies to offshore areas under state jurisdiction, including Western Australia in this case. The application process includes provisions for public submissions, which allows interested parties to voice their concerns or support within a specified timeframe. The pipeline in question is subject to stringent design, construction, and operational standards as outlined in the notice, which are intended to ensure safety and environmental protection in the offshore environment. The Act allows for extensions and restrictions of application through subordinate instruments, ensuring flexibility in its implementation.

Key Provisions

The main operative sections of the notice, as provided under section 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006, involve the announcement of an application for a pipeline licence by Woodside Energy Scarborough Pty Ltd and BHP Petroleum (Australia) Pty Ltd. The application is for the conveyance of petroleum in the offshore area of Western Australia, and the notice invites written submissions from interested parties within 30 days of its publication in the Australian Government Gazette. The Act imposes several obligations on the applicant companies, including the requirement to design and construct the pipeline in accordance with Offshore Standard DNVGL-ST-F101, which is incorporated in Australian Standard AS2885.4. The design must also meet specific criteria such as outside diameter, wall thickness, length, design life, material, protective coating, and corrosion allowances. The pipeline must be capable of operating within specified temperature and pressure limits, and it should be designed to convey dry gas with a capacity of 1,750 MMscf/d. Additionally, the pipeline must include provisions for pigging facilities and cathodic protection to ensure the integrity of the pipeline system. Breach of the provisions set out in the notice or failure to comply with the requirements of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 can lead to various consequences. While the notice does not explicitly state specific penalties, the Act generally provides for both civil and criminal penalties for non-compliance. Civil penalties can include fines up to a significant amount, while criminal penalties can include imprisonment for offences such as unauthorised activities related to offshore petroleum or greenhouse gas storage. The exact penalties would depend on the nature and severity of the breach.

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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.