COMMONWEALTH OF AUSTRALIA
Sections 226 and 708
Offshore Petroleum and Greenhouse Gas Storage Act 2006
APPLICATION FOR VARIATION OF A PIPELINE LICENCE - VIC/PL15 (MDKN4C)
I, NICOLE LYNETTE FILBAY, the delegate of the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth-Victoria 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
Esso Australia Resources Pty Ltd
(ACN 091 829 819)
Woodside Energy (Bass Strait) Pty Ltd
(ACN 004 228 004)
for the variation of Pipeline Licence VIC/PL15 in the offshore area of Victoria, 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.
NICOLE LYNETTE FILBAY
DELEGATE OF THE TITLES ADMINISTRATOR
ON BEHALF OF THE COMMONWEALTH–VICTORIA
OFFSHORE PETROLEUM JOINT AUTHORITY
APPLICATION FOR VARIATION OF
PIPELINE LICENCE VIC/PL15
- The FIRST SCHEDULE of the Licence is varied by deleting the current test and table below the heading “FIRST SCHEDULE – ROUTE OF PIPELINE” and substituting under the heading ROUTE OF DN150 (6”) FLEXIBLE PIPELINE the following:
Inserting new sub-heading:
From Conclusion of Stage 1 Activities
Inserting the following wording:
“The route of the pipeline, following completion of certain decommissioning activities which involve the cutting of the pipeline at the topside (Stage 1), is described in the table below, and displayed in the map below, commencing at the cut spool location at the Cobia platform and terminating at the upstream flange to the Halibut platform riser First Valve On (FVO) isolation valve within a 20 metre corridor (+- 10m centred on the pipeline). Coordinates are based on Geodetic Datum of Australia (GDA94).”
ID | DESCRIPTION* | 2D | EASTING | NORTHING | BEND RADIUS |
CBA Riser | Cut spool location at the LVO at the Cobia Platform | 0.0 | 614231.7 | 5743524.1 |
|
TP7b | End of pipeline curve TP7b | 0.1 | 614131.7 | 5743452.4 | 45 |
IP7 | Intersection point IP7 |
| 614082.6 | 5743417.1 | |
TP7a | Start of pipeline curve TP | 0.2 | 614062.9 | 5743474.3 | |
TP6b | End of pipeline curve TP6b | 0.3 | 614042.8 | 5743532.5 | 100 |
IP6 | Intersection point IP6 |
| 614027.9 | 5743576.0 | |
TP6a | Start of pipeline curve TP6a | 0.4 | 614051.1 | 5743615.6 | |
TP5b | End of pipeline curve TP5b | 0.4 | 614063.7 | 5743637.1 | 50 |
IP5 | Intersection point IP5 |
| 614066.8 | 5743642.5 | |
TP5a | Start of pipeline curve TP5a | 0.4 | 614068.6 | 5743648.6 | |
TP4b | End of pipeline curve TP4b | 2.6 | 614667.4 | 5745743.2 | 50 |
IP4 | Intersection point IP4 |
| 614667.5 | 5745743.5 | |
TP4a | Start of pipeline curve TP4a | 2.6 | 614667.6 | 5745743.9 | |
TP3b | End of pipeline curve TP3b | 3.7 | 614948.5 | 5746786.8 | 50 |
IP3 | Intersection point IP3 |
| 614948.7 | 5746787.6 | |
TP3a | Start of pipeline curve TP3a | 3.7 | 614948.9 | 5746788.3 | |
TP2b | End of pipeline curve TP2b | 4.2 | 615114.9 | 5747335.1 | 50 |
IP2 | Intersection point IP2 |
| 615115.1 | 5747335.5 | |
TP2a | Start of pipeline curve TP2a | 4.2 | 615115.2 | 5747336.0 | |
Crossing | Crossing of redundant CBA300 pipeline and HLA100 fuel gas pipeline | 5.3 | 615400.7 | 5748346.4 |
|
TP1b | End of pipeline curve TP1b | 5.3 | 615413.8 | 5748393.3 | 50 |
IP1 | Intersection point IP1 |
| 615423.6 | 5748428.4 | |
TP1a | Start of pipeline curve TP1a | 5.4 | 615393.1 | 5748448.5 | |
HLA Riser | Halibut riser tie-in | 5.5 | 615309.6 | 5748503.4 |
|
* The flexible pipeline was laid from the Halibut to Cobia platforms, hence the curves are in reverse order from the KPs that start at the Cobia platform and which are in the direction of the process flow.
**KP = Kilometre Point
Inserting new sub-heading:
From Conclusion of Stage 2 Activities
Inserting the following wording:
The route of the pipeline, following completion of certain decommissioning activities which involve the cutting of the pipeline at the subsea locations set out below (Stage 2), is described in the table below, and displayed in the map below, commencing at [subsea location] and terminating at the upstream flange to the Halibut platform riser First Valve On (FVO) isolation valve within a 20 metre corridor (+- 10 m centred on the pipeline). Coordinates are based on Geodetic Datum of Australia (GDA94).
ID | DESCRIPTION* | 2D | EASTING | NORTHING | BEND RADIUS |
| Subsea location near Cobia Platform | 0.0 | 614215.3 | 5743525.4 |
|
TP7b | End of pipeline curve TP7b | 0.1 | 614131.7 | 5743452.4 | 45 |
IP7 | Intersection point IP7 |
| 614082.6 | 5743417.1 | |
TP7a | Start of pipeline curve TP | 0.2 | 614062.9 | 5743474.3 | |
TP6b | End of pipeline curve TP6b | 0.3 | 614042.8 | 5743532.5 | 100 |
IP6 | Intersection point IP6 |
| 614027.9 | 5743576.0 | |
TP6a | Start of pipeline curve TP6a | 0.4 | 614051.1 | 5743615.6 | |
TP5b | End of pipeline curve TP5b | 0.4 | 614063.7 | 5743637.1 | 50 |
IP5 | Intersection point IP5 |
| 614066.8 | 5743642.5 | |
TP5a | Start of pipeline curve TP5a | 0.4 | 614068.6 | 5743648.6 | |
TP4b | End of pipeline curve TP4b | 2.6 | 614667.4 | 5745743.2 | 50 |
IP4 | Intersection point IP4 |
| 614667.5 | 5745743.5 | |
TP4a | Start of pipeline curve TP4a | 2.6 | 614667.6 | 5745743.9 | |
TP3b | End of pipeline curve TP3b | 3.7 | 614948.5 | 5746786.8 | 50 |
IP3 | Intersection point IP3 |
| 614948.7 | 5746787.6 | |
TP3a | Start of pipeline curve TP3a | 3.7 | 614948.9 | 5746788.3 | |
TP2b | End of pipeline curve TP2b | 4.2 | 615114.9 | 5747335.1 | 50 |
IP2 | Intersection point IP2 |
| 615115.1 | 5747335.5 | |
TP2a | Start of pipeline curve TP2a | 4.2 | 615115.2 | 5747336.0 | |
Crossing | Crossing of redundant CBA300 pipeline and HLA100 fuel gas pipeline | 5.3 | 615400.7 | 5748346.4 |
|
TP1b | End of pipeline curve TP1b | 5.3 | 615413.8 | 5748393.3 | 50 |
IP1 | Intersection point IP1 |
| 615423.6 | 5748428.4 | |
TP1a | Start of pipeline curve TP1a | 5.4 | 615393.1 | 5748448.5 | |
HLA Riser | Halibut riser tie-in | 5.5 | 615309.6 | 5748503.4 |
|
*The flexible pipeline was laid from the Halibut to Cobia platforms, hence the curves are in reverse order from the KPs that start at the Cobia platform and which are in the direction of the process flow.
**KP = Kilometre Point
2. The SECOND SCHEDULE of the Licence is varied by:
a. Deleting the heading Basis of Design – Cobia and Halibut Platform Risers and the entire table underneath:
Inserting new sub-heading:
Basis of Design – Halibut Platform Riser
Inserting the following new table under the heading:
ITEM | ITEM DESCRIPTION | DETAILS |
1 | Outside diameter of pipe | Pipeline riser: 323.9 mm |
2 | Wall thickness of pipe
| Pipeline riser: 19.1 mm |
3 | Length | 100 m (approximate) |
4 | Design life | Requalified in December 2013 to 2030 |
5 | Pipeline Material and Grade | The Halibut riser pipe is API 5L X52 Grade in accordance with the requirements of the American Petroleum Institute Specification – API Spec 5LX, 22nd Edition for Grade X52 seamless pipe and Esso Australia Limited Supplemental pipe specification accompanying the pipeline licence application. |
6 | Minimum yield strength of riser pipe steel | 358.5 MPa |
7 | Weight coating | The HLA riser is not weight coated. |
8 | Protective coating | Protection of the riser pipework shall be maintained with a coating in accordance with the coating Specification No. 4.3 ‘Protective Coatings for Onshore Plants, Offshore Platforms and other Marine Structures or other systems.’
In the splash zone, the HLA riser is wrapped in a 12 mm carbon steel sleeve and coated with a 6.4 mm thick Monel sheathing. Below the Monel sheath, the riser is coated in a 6mm thick Zebron polyutherane coating.
Riser piping above the splash zone at HLA is protected with Ultra High Build Epoxy coating. |
9 | Internal design pressure | 13,962 kPag |
10 | Maximum Allowable Operating Pressure | 13,100 kPag |
11 | Specific Gravity | Not applicable |
12 | Design Capacity | 12,400 m3 oil per day (77,994 bbl oil per day) |
13 | Maximum Operating Temperature | Not applicable |
14 | Maximum Design Temperature | Not applicable |
15 | Minimum Design Temperature | Not applicable |
16 | Characteristics of substance proposed to be conveyed | Liquid hydrocarbons (and associated produced water) |
17 | General plans and descriptions of pump stations, tank stations or valve stations and their equipment | None provided |
18 | General plans and description of pigging facilities | None provided |
19 | Valves and fittings | Not applicable |
20 | Connections to pipeline | The DN150 flexible pipeline is connected to the lower end of the HLA riser with a mechanical end connector and an approximately 1 m long DN300 (12”) to DN150 (6”) flanged transition spool. |
21 | Cathodic Protection | Transformer rectifier unit on Halibut platform shall provide protection to the subsea portion of the riser and the DN150 flexible pipeline. |
- deleting Item 21 in the table under the heading Basis of Design – DN150 Flexible Pipeline and re-numbering item 22 (Crossings).
The rest of the SECOND SCHEDULE remains as stated in the licence instrument dated 20 July 1990.