COMMONWEALTH OF AUSTRALIA
Sections 16, 226 and 708
Offshore Petroleum and Greenhouse Gas Storage Act 2006
VARIATION OF PIPELINE LICENCE VIC/PL1
(BARRACOUTA TO SHORE)
I, GRAEME ALBERT WATERS, the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Victoria Offshore Petroleum Joint Authority hereby vary Pipeline Licence VIC/PL1 as set out below.
I further give notice that effective as of the date of this notice the West Barracouta Flowline End Manifold located at the West Barracouta Field in Petroleum Production Licence VIC/L1 is declared as a terminal station pursuant to section 16 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006, being a specified petroleum valve station in an offshore area.
The variation takes effect on the day on which a notice of the variation is published in the Commonwealth 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–VICTORIA
OFFSHORE PETROLEUM JOINT AUTHORITY
- The FIRST SCHEDULE of the Licence is varied by deleting all of the current text below the heading ‘FIRST SCHEDULE’
and substituting the following:
“I. ROUTE OF STEEL PIPELINE
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 | 559107.14 | 5761058.41 |
1 | Barracouta Platform | 559114.21 | 5761058.93 |
2 | Deflection point | 559101.12 | 5761057.96 |
C1 | Crossing at VIC/SL7 (TWA65) | 559096.07 | 5761058.99 |
C2 | Crossing at VIC/PL23 (TWA200) | 559087.80 | 5761058.79 |
3 | Deflection point | 559063.00 | 5761058.19 |
4 | Deflection point | 559038.85 | 5761061.67 |
5 | Deflection point | 555943.45 | 5762957.85 |
6 | Deflection point | 553792.00 | 5764203.00 |
7 | Deflection point | 547106.77 | 5768376.48 |
8 | Deflection point | 544683.99 | 5769863.65 |
9 | Deflection point | 544276.94 | 5770056.44 |
10 | 3 Nautical Mile Point | 543223.00 | 5770767.00 |
Coordinate set above is based on GDA94/MGA Zone 55, survey of pipeline centreline.
II. ROUTE OF WEST BARRACOUTA FLEXIBLE PIPELINE
The flexible pipeline route is described in the table below, and displayed on the map below, within a 20 m corridor (±10 m centred on the pipeline design route), subject to installation tolerances, commencing at the tie-in flange downstream of the 12 inch ball valve of the West Barracouta Flowline End Manifold and terminating at the 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 | Tie-in flange downstream of the 12 inch ball valve of the Flowline End Manifold | 553822.30 | 5758786.90 |
1 | Deflection point | 554008.41 | 5758974.96 |
2 | Deflection point | 558671.08 | 5761257.54 |
3 | Deflection point | 558746.01 | 5761211.15 |
4 | Hot tap location | 558751.27 | 5761219.65 |
Coordinate set above is based on GDA94/MGA Zone 55
- The SECOND SCHEDULE of the Licence is varied by deleting the heading:
‘I. SPECIFICATION’
and replacing with:
‘I. SPECIFICATION – STEEL PIPELINE’.
- The SECOND SCHEDULE of the Licence is varied by inserting at the end of the current text the following:
II. SPECIFICATION – WEST BARRACOUTA FLEXIBLE PIPELINE
(A) Basis of Design – Flexible Pipeline
The pipeline design is based on the following parameters:
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 (2,750psia) |
10 | Maximum Allowable Operating Pressure | 12.514 MPaa (1,815psia) |
12 | Design Capacity | 3.7 Mm3/d (130MMscf/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 | The West Barracouta Flowline End Manifold (FLEM) located at the West Barracouta Field will be declared by notice published in the Commonwealth Gazette as a terminal station pursuant to section 16 of the Act, being a specified petroleum valve station in an offshore area. |
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 |