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Administered by: Industry, Innovation and Science
Published Date 05 Mar 2019

 

COMMONWEALTH OF AUSTRALIA

 

Sections 226 and 708

Offshore Petroleum and Greenhouse Gas Storage Act 2006

 

APPLICATION FOR VARIATION OF A PIPELINE LICENCE

 

I, GRAEME ALBERT WATERS, 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/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.

 

GRAEME ALBERT WATERS

TITLES ADMINISTRATOR

ON BEHALF OF THE COMMONWEALTH–VICTORIA

OFFSHORE PETROLEUM JOINT AUTHORITY

 

 


 

APPLICATION FOR VARIATION OF

PIPELINE LICENCE VIC/PL15

 

The application seeks to effect the following amendments to the licence to reflect the
‘as constructed’ coordinates for the Cobia DN150 flexible pipeline section of the Cobia to Halibut Oil Pipeline, following repair work in the Cobia Pipeline Repair Project.

 

Route of the Pipeline

 

1.      Update the DN150 (6”) Flexible Pipeline route description to reflect minor changes to the pipeline route resulting from the pipeline repair (see DN150 (6”) Flexible Pipeline Co-ordinates below).

 

2.      Update the route map of the Cobia to Halibut Oil Pipeline (see Appendix A).

 

Pipeline Specifications

 

3.      Update the existing ‘Basis of Design – Cobia and Halibut Platform risers’ specification table to change the Cobia CBA riser length to 100 m (approximate).

 

DN150 (6”) Flexible Pipeline Co-ordinates

 

The route of the pipeline is described in the table below, and displayed in the map below, commencing at the downstream flange on the Cobia platform riser Last Valve Off (LVO) isolation valve and terminating at the upstream flange to the Halibut platform riser First Valve On (FVO) isolation valve within a 20 m corridor (± 10 m centred on the pipeline). Coordinates are based on Geodetic Datum of Australia (GDA94).

 

ID

DESCRIPTION*

2D KP**

EASTING

NORTHING

Bend Radius (m)

CBA Riser

Cobia riser tie-in

0.0

614231.4

5743524.2

 

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 TP7a

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

 

Coordinate set above is based on GDA94 / MGA Zone 55 and is the centreline for the pipeline corridor.

* The flexible pipeline was laid from the Halibut to Cobia platforms, hence the curves are in the reverse order from the KPs that start at the Cobia platform and which are in the direction of the process flow. 

** KP = Kilometre Point (approximate. Start point defined as the riser tie-in location at Cobia.)

 

 


Appendix A: Cobia to Halibut Oil Pipeline Route

VIC/PL15 Cobia to Halibut Pipeline Route

Schematic showing as constructed route of flexible oil pipeline for Cobia to Halibut project.