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-11-PL)
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 sections 226 and 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 that an application has been received from
Santos WA Northwest Pty Ltd
(ACN 009 140 854)
Santos (BOL) Pty Ltd
(ACN 000 670 575)
for the variation of Pipeline Licence WA-11-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.
GRAEME ALBERT WATERS
TITLES ADMINISTRATOR
ON BEHALF OF THE COMMONWEALTH–WESTERN AUSTRALIA
OFFSHORE PETROLEUM JOINT AUTHORITY
APPLICATION FOR VARIATION OF
PIPELINE LICENCE WA-11-PL
The application seeks to effect the following amendments to the licence:
- The Schedule under Specifications, the Basis of Design table is varied by updating the items in bold and italics:
(B) Basis of Design
The pipeline design is based on the following parameters:
Item | Item Description | Details |
1 | Outside diameter of pipe and riser | 457.2 mm (18 in) |
2 | Wall thickness of pipe inclusive of riser (only for carbon steel) | 15.9 mm (0.6 in) (KP21.2 to KP48.1 and pipeline riser); 17.5 mm (0.7 in) (KP48.1 to KP53.9); 15.9 mm (0.6 in) (KP53.9 to KP54.4) pipeline repair spools |
3 | Length | 33.2 km (approximate) |
4 | Design life | 20 years (approximate) 10 years for replacement spool installed as part of the John Brookes Replacement Project completed Q1 2023 |
5 | Pipeline Material | Carbon Steel |
6 | Pipeline and Riser Steel Grade | DNV-OS-F101 Grade 450 |
7 | Pipeline Specification | DNV-OS-F101 High Frequency Weld |
8 | Minimum yield strength of pipe steel | 450 MPa (65,267.0 psi) Specified Minimum Yield Strength (SMYS) |
9 | Maximum Allowable Operating Pressure | 13.75 MPag (1,994.3 psi) |
10 | Design Capacity | Maximum design flowrate of 260 MMscf/d |
11 | Characteristics of substance proposed to be conveyed | Wet gas (approximate 85.5% methane saturated with water at reservoir conditions) |
12 | General plans and descriptions of pump stations, tank stations or valve stations and their equipment |
|
13 | General plans and descriptions of pipeline repair | 2015 Replacement Project
2023 Tie-In Spool Replacement
|
14 | General plans and description of pigging facilities | Provision for offshore pig launcher located at the platform and an onshore pig receiver at Varanus Island |