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-27-PL (TV8S9S)
I, HEATH SAMUEL SHEPHERDSON, 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)
BP Developments Australia Pty. Ltd.
(ACN 081 102 856)
Chevron Australia Pty Ltd
(ACN 086 197 757)
Woodside Energy Ltd.
(ACN 005 482 986)
Japan Australia LNG (MIMI) Pty. Ltd.
(ACN 006 303 180)
Shell Australia Pty Ltd
(ACN 009 663 576)
for the variation of Pipeline Licence WA-27-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.
HEATH SAMUEL SHEPERDSON
DELEGATE OF THE TITLES ADMINISTRATOR
ON BEHALF OF THE COMMONWEALTH–WESTERN AUSTRALIA OFFSHORE PETROLEUM JOINT AUTHORITY
APPLICATION FOR VARIATION OF
PIPELINE LICENCE WA-27-PL
The application seeks to affect the following amendments to the licence:
- The Route of the Pipeline is varied by adding the following tables of coordinates and text detailing the route of the GWF-4 Echo Yodel system of pipes:
Table 1. Coordinates from the Yodel Updip well (YOD05) Xmas tree to the Echo Yodel (EYA) Manifold Flowline
YOD05 Xmas tree to EYA Manifold Flowline | |||
Feature Name | Easting (mE) | Northing (mN) | Bend radius (m) |
YOD05 Xmas Tree Hub Face | 366 843 | 7 815 548 |
|
TP1A | 367 431 | 7 815 279 |
|
IP1 | 367 530 | 7 815 234 | 500 |
TP1B | 367 639 | 7 815 234 |
|
TP2A | 369 889 | 7 815 234 |
|
IP2 | 369 904 | 7 815 234 | 30 |
TP2B | 369 913 | 7 815 223 |
|
EYA Manifold Hub Face | 369 931 | 7 815 199 |
|
Table 2. Coordinates from the Echo Spur Well (ESA01) Xmas Tree to the EYA Manifold Flowline
ESA01 Xmas Tree to EYA Manifold Flowline | |||
Feature Name | Easting (mE) | Northing (mN) | Bend radius (m) |
ESA01 Xmas Tree Hub Face | 369 840 | 7 815 083 |
|
TP3A | 369 836 | 7 815 103 |
|
IP3 | 369 834 | 7 815 117 | 25 |
TP3B | 369 845 | 7 815 127 |
|
EYA Manifold Hub Face | 369 932 | 7 815 195 |
|
Table 3. Coordinates from the EYA Manifold to the Keast Dockrell (KDA) Manifold Flowline
EYA Manifold to KDA Manifold Flowline | |||
Feature Name | Easting (mE) | Northing (mN) | Bend radius (m) |
EYA Manifold Hub Face | 369 935 | 7 815 194 |
|
TP4A | 369 984 | 7 815 133 |
|
IP4 | 370 011 | 7 815 100 | 150 |
TP4B | 370 050 | 7 815 086 |
|
TP5A | 371 156 | 7 814 681 |
|
IP5 | 371 199 | 7 814 665 | 200 |
TP5B | 371 244 | 7 814 669 |
|
TP6A | 372 265 | 7 814 767 |
|
IP6 | 372 274 | 7 814 768 | 30 |
TP6B | 372 282 | 7 814 763 |
|
TP7A | 372 378 | 7 814 712 |
|
IP7 | 372 457 | 7 814 670 | 150 |
TP7B | 372 532 | 7 814 719 |
|
KDA Manifold Hub Face | 372 747 | 7 814 862 |
|
Coordinate sets above have an installation corridor of ±100m to allow for minor route deviations and loss loops of the flexible flowlines.
- Under Specifications, “Design and Construction” is varied by adding the following table:
Table 4: Key design standards for the Echo Yodel Flexible Flowlines and EYA Manifold
Standard | Title |
API 17B | Recommended Practice for Flexible Pipe |
API 17J | Specification for Unbonded Flexible Pipe |
API 17L1 | Specification for Unbonded Flexible Pipe Ancillary Equipment |
API 17L2 | Recommended Practice for Flexible Pipe Ancillary Equipment |
API 17P | Recommended Practice for Subsea Structures and Manifolds |
- Under Specifications, “Basis of Design” is varied by adding the following tables:
Table 5: Key design parameters for YOD05 to EYA Flexible Flowline
Item | Item Description | Details |
1 | Internal diameter | 10 Inches |
2 | Design capacity | 180 MMscf/d |
3 | Maximum allowable operating pressure | 34.5 MPa(a) |
4 | Maximum design temperature | 110°C |
5 | Maximum operating temperature | 104°C |
6 | Minimum design temperature | -29°C |
7 | Design life | 15 Years |
Table 6: Key design parameters for ESA01 to EYA Flexible Flowline
Item | Item Description | Details |
1 | Internal diameter | 8 Inches |
2 | Design capacity | 120 MMscf/d |
3 | Maximum allowable operating pressure | 34.5 MPa(a) |
4 | Maximum design temperature | 110°C |
5 | Maximum operating temperature | 104°C |
6 | Minimum design temperature | -29°C |
7 | Design life | 15 Years |
Table 7: Key design parameters for EYA to KDA Flexible Flowline
Item | Item Description | Details |
1 | Internal diameter | 10 Inches |
2 | Design capacity | 300 MMscf/d |
3 | Maximum allowable operating pressure | 34.5 MPa(a) |
4 | Maximum design temperature | 110°C |
5 | Maximum operating temperature | 104°C |
6 | Minimum design temperature | -29°C |
7 | Design life | 15 Years |
Table 8: Key design parameters for EYA Manifold
Item | Item Description | Details |
1 | Internal diameter header | 10 Inches |
2 | Internal diameter branches | 7 Inches |
3 | Number of headers / branches | 1 / 2 |
4 | Maximum allowable operating pressure | 34.5 MPa(a) |
5 | Maximum design temperature | 110°C |
6 | Maximum operating temperature | 104°C |
7 | Minimum design temperature | -18°C |
8 | Material Class | HH Trim |
9 | Design life | 15 Years |
The existing ROUTE OF THE PIPELINE and SPECIFICATIONS of the Greater Western Flank-2 (GWF-2) system of pipes within Pipeline Licence WA-27-PL remains as stated in the licence instrument dated 6 October 2016 and as varied 1 September 2017.
- The GWF-2 Route Map on page 6 is deleted and replaced with the map at Attachment 1.
Attachment 1