COMMONWEALTH OF AUSTRALIA
Sections 226 and 708
Offshore Petroleum and Greenhouse Gas Storage Act 2006
APPLICATION FOR VARIATION OF A PIPELINE LICENCE
I, STEVEN ROBERT TAYLOR, 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
(ABN 62 091 829 819)
BHP Billiton Petroleum (Bass Strait) Pty. Ltd.
(ABN 29 004 228 004)
for the variation of Pipeline Licence VIC/PL1 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.
STEVEN ROBERT TAYLOR
DELEGATE OF THE TITLES ADMINISTRATOR
ON BEHALF OF THE COMMONWEALTH–VICTORIA
OFFSHORE PETROLEUM JOINT AUTHORITY
APPLICATION FOR VARIATION OF
PIPELINE LICENCE VIC/PL1
The application seeks to effect the following amendments to the licence associated with the development of the West Barracouta Field, which will be tied into the existing Barracouta to Shore gas pipeline via a new 5.6 km section of 12” flexible pipeline as part of a system of pipes. The following information has been provided by the applicant and will be subject to assessment.
Route of the Pipeline
- Update the current Barracouta to Shore Steel Pipeline route description such that the pipeline commences at the Barracouta Last Valve Off (see Barracouta to Shore Pipeline Coordinates below).
2. Insert the route description for the West Barracouta Flexible Pipeline (see West Barracouta Flexible Pipeline Coordinates below).
3. Add a route map of the West Barracouta Flexible Pipeline (see Appendix A).
West Barracouta Flexible Pipeline Specifications
4. Insert the pipeline design details and parameters for the West Barracouta Flexible Pipeline.
Barracouta to Shore Steel Pipeline Coordinates
The route of the pipeline is described in the table below and displayed in the map below commencing at the Barracouta Last Valve Off, located below the pig launcher on the platform and proceeding in a straight line, with some minor deflections towards a point which intersects the boundary of Commonwealth offshore waters at the 3 nautical mile limit at or about Easting 543223 m and Northing 5770767 m. Coordinates are based on Geodetic Datum of Australia (GDA94).
ID | DESCRIPTION | EASTING | NORTHING |
0 | Last Valve Off at Barracouta Platform | 558974 | 5760899 |
1 | Barracouta Platform | 558974 | 5760899 |
2 | Deflection point | 559097 | 5761057 |
C1 | Crossing at VIC/SL7 (TWA65) | 559102 | 5761058 |
C2 | Crossing at VIC/PL23 (TWA200) | 559094 | 5761058 |
3 | Deflection point | 559070 | 5761068 |
4 | Deflection point | 558832 | 5761132 |
5 | Deflection point | 555961 | 5762952 |
6 | Deflection point | 553792 | 5764203 |
7 | Deflection point | 547797 | 5767982 |
8 | Deflection point | 544640 | 5769898 |
9 | Deflection point | 544275 | 5770058 |
10 | 3 Nautical Mile Point | 543223 | 5770767 |
Coordinates set above is based on GDA94 / MGA Zone 55, survey of pipeline centreline.
West Barracouta Flexible Pipeline Coordinates
The flexible pipeline route is described in the table below and displayed on the attached map, and lies within a 20 m corridor centred on the pipeline route, subject to installation tolerances, commencing at the West Barracouta Flowline End Manifold and terminating at the Barracouta Pipeline Hot-Tap location on the steel pipeline, located within the 500 m petroleum safety zone of the Barracouta platform. Coordinates are based on Geodetic Datum of Australia (GDA94).
ID | Description | EASTING | NORTHING |
0 | Flowline End Manifold | 553,822.30 | 5,758,786.90 |
1 | Deflection point | 554,008.41 | 5,758,974.96 |
2 | Deflection point | 558,671.08 | 5,761,257.54 |
3 | Deflection point | 558,746.01 | 5,761,211.15 |
4 | Hot tap location | 558,751.27 | 5,761,219.65 |
West Barracouta Flexible Pipeline Specifications
Item | Item Description | Details |
1 | Outside diameter of pipe | 400 mm (approximate) |
3 | Length | 5.6 km (approximate) |
4 | Design life | 15 years (approximate) |
5 | Pipeline Material and Grade | DN300 flexible pipeline will comply with API 17B Recommended Practice for Flexible Pipe and API 17J Specification for Unbonded Flexible Pipe |
8 | Protective Coating | DN300 flexible pipeline will be protected by an external polyethylene sheath and constructed with corrosion resistant alloys |
9 | Internal design pressure | 18.96 MPaa (2,750 psia) |
10 | Maximum Allowable Operating Pressure | 12.514 MPaa (1,815 psia) |
12 | Design Capacity | 3.7 Mm3/d (130 MMscf/d) |
13 | Maximum Operating Temperature | 70°C |
14 | Maximum Design Temperature | 80°C |
15 | Minimum Design Temperature | -18°C |
16 | Characteristics of substance proposed to be conveyed | Wet gas and condensate hydrocarbon liquids |
17 | General plans and descriptions of pump stations, tank stations or valve stations and their equipment | Flowline end manifold |
18 | General plans and description of pigging facilities | None provided |
19 | Valves and Fittings | All valves and fittings will be in accordance with the appropriate American Petroleum Institute Specification or American National Standards Institute Specification, with Class 1500 rating for fittings. |
20 | Connection to Pipeline | The FLEM and Skid that connect to the flexible pipeline are designed in accordance with ASME B31.8. |
21 | Cathodic Protection | Anode bracelets will be provided at each end of the flexible pipeline sections. |
22 | Crossings | No crossings |
Appendix A – West Barracouta Flexible Pipeline Route Map