COMMONWEALTH OF AUSTRALIA
Section 708
Offshore Petroleum and Greenhouse Gas Storage Act 2006
APPLICATION FOR GRANT OF A PIPELINE LICENCE – CRUX (AC)
I, GRAEME ALBERT WATERS, the National Offshore Petroleum Titles Administrator, on behalf of the Territory of Ashmore and Cartier Islands 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
Shell Australia Pty Ltd
(ACN 009 663 576)
SGH Energy WA Pty Ltd
(ACN 113 911 274)
Osaka Gas Crux Pty Ltd
(ACN 126 767 093)
for the grant of a pipeline licence for the conveyance of petroleum in the offshore area of the Territory of Ashmore and Cartier Islands, 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 TERRITORY OF ASHMORE AND CARTIER ISLANDS
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 downstream flange of the Riser Emergency Shutdown Valve (RESDV) on the Crux Platform to the boundary of the Territory of Ashmore and Cartier Islands and Western Australia offshore areas. Coordinates listed below are based on Geodetic Datum of Australia (GDA94), UTM Zone 51*.
Feature ID | Feature Name | KP | Easting (mE) | Northing (mN) | Heading | Radius (m) |
1 | Downstream Flange of the RESDV on Crux Platform** |
| 656 469.99 | 8 566 340.00 |
|
|
2 | Crux Rigid Riser | Approximate total vertical length 200m |
|
| ||
3 | Crux Tie-in Spool | Approximate total length 50m x width 20m |
|
| ||
4 | Crux PLET Hub Face | 0 | 656 420.33 | 8 566 243.73 |
|
|
5 | Crux PLET SSIV | 0.017 | 656 404.76 | 8 566 237.97 |
|
|
6 | TP1A | 1.486 | 655 027.09 | 8 565 727.81 | 249.68 |
|
7 | IP1 |
| 654 802.93 | 8 565 644.80 |
| 1500 |
8 | TP1B | 1.960 | 654 615.67 | 8 565 496.22 |
|
|
9 | TP2A | 4.131 | 652 915.08 | 8 564 146.95 | 231.57 |
|
10 | IP2 |
| 652 595.51 | 8 563 893.39 |
| 3000 |
11 | TP2B | 4.942 | 652 219.84 | 8 563 734.38 |
|
|
12 | TP3A | 29.331 | 629 759.36 | 8 554 227.32 | 247.06 |
|
13 | IP3 |
| 629 664.97 | 8 554 187.36 |
| 3000 |
14 | TP3B | 29.536 | 629 573.52 | 8 554 141.06 |
|
|
15 | TP4A | 40.979 | 619 364.96 | 8 548 971.90 | 243.14 |
|
16 | IP4 |
| 619 270.52 | 8 548 924.07 |
| 3000 |
17 | TP4B | 41.190 | 619 179.68 | 8 548 869.71 |
|
|
18 | TP5A | 57.251 | 601 441.11 | 8 536 396.49 | 239.10 |
|
19 | IP5 |
| 601 251.01 | 8 536 183.65 |
| 3000 |
20 | TP5B | 58.158 | 601 024.19 | 8 536 010.48 |
|
|
21 | TP6A | 63.053 | 601 441.11 | 8 536 396.49 | 221.77 |
|
22 | IP6 |
| 601 251.01 | 8 536 183.65 |
| 3000 |
23 | TP6B | 63.622 | 601 024.19 | 8 536 010.48 |
|
|
24 | Boundary of the Territory of Ashmore and Cartier Islands and Western Australia offshore areas | 78.708 | 589 032.93 | 8 526 855.43 | 232.64 |
|
* Coordinates in the map at Attachment 1 are displayed in GDA2020, UTM Zone 51.
** Coordinates are approximate and based on the FEED location of the RESDV.
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 |
1 | Outside diameter of pipe and riser | Crux Rigid Riser & Tie-in Spool: 26 inches (679.1 mm) nominal Crux PLET (including SSIV) & 26” Crux Export Pipeline: KP 0 – 12.5: 26 inches (666.7 mm) nominal KP 12.5 – 78.708: 26 inches (660.5 mm) nominal |
2 | Wall thickness of pipe inclusive of riser (only for carbon steel) | Crux Rigid Riser & Tie-in Spool: 25.4 mm + 3 mm Alloy 625 Crux PLET (including SSIV) & 26” Crux Export Pipeline: KP 0.0 – 12.5: 22.2 mm KP 12.5 – 78.708: 19.1 mm |
3 | Length | 78.7 km (approximate) |
4 | Design life | 20 years (approximate) |
5 | Pipeline Material | Flexible steel |
6 | Pipeline and Riser Steel Specification and Grade | Crux Rigid Riser & Tie-in Spool: DNVGL-ST-F101 SAWL Gr 450 DF + CRA UNS N06625 Crux PLET (including SSIV) & 26” Crux Export Pipeline: DNVGL-ST-F101 SAWL Gr 450 DF |
7 | Minimum yield strength of pipe steel | 450 MPa |
8 | Maximum Allowable Operating Pressure | 133 barg |
9 | Design Capacity | 550 MMscf/d |
10 | Maximum Design Temperature | Crux Rigid Riser & Tie-in Spool: 70⁰C Crux PLET (including SSIV) & 26” Crux Export Pipeline: 70⁰C |
11 | Minimum Design Temperature | Crux Rigid Riser & Tie-in Spool: -3⁰C Crux PLET (including SSIV) & 26” Crux Export Pipeline: -3⁰C |
12 | Maximum Operating Temperature | Crux Rigid Riser & Tie-in Spool: 55⁰C Crux PLET (including SSIV) & 26” Crux Export Pipeline: 55⁰C |
13 | Characteristics of substance proposed to be conveyed | Dehydrated gas and condensate |
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 | Pig launcher is located on Crux platform, and pig received is located on Prelude FLNG, pigging facilities are not within the pipeline licence boundary |
16 | Cathodic protection | Al-Zn-In alloy anodes. Anodes attached directly to the PLET structure. Bracelet type, full shell, non-tapered. 600mm length x 50mm thickness (163kg) installed at various locations along the pipeline. |