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Administered by: Industry, Innovation and Science
Published Date 25 Jan 2017

 

 

COMMONWEALTH OF AUSTRALIA

 

Section 708

Offshore Petroleum and Greenhouse Gas Storage Act 2006

 

APPLICATION FOR GRANT OF A PIPELINE LICENCE

 

I, TERRENCE JOHN MCKINLEY, Delegate of the National Offshore Petroleum Titles Administrator, on behalf of the Commonwealth–Western Australia Offshore Petroleum Joint Authority hereby give notice pursuant to section 708 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 that an application has been received from

 

 

 

Woodside Energy Ltd.

(ABN 63 005 482 986)

 

Mitsui E&P Australia Pty Ltd

(ACN 108 437 529)

 

 

for the grant of a pipeline licence for the conveyance of petroleum in the offshore area of Western Australia, as set out below.

 

This notice takes effect on the day in which it appears in the

Australian Government Gazette.

 

Made under the Offshore Petroleum and Greenhouse Gas Storage Act 2006

of the Commonwealth of Australia.

 

 

TERRY MCKINLEY

DELEGATE OF THE TITLES ADMINISTRATOR

ON BEHALF OF THE COMMONWEALTH–WESTERN AUSTRALIA

OFFSHORE PETROLEUM JOINT AUTHORITY

 

 

 

 

 

 

 

 

 

 

ROUTE OF THE PIPELINE

 

The pipeline route is described in the table hereunder, commencing at the tie-in flange for the Laverda Area high boost subsea multi-phase pump (MPP) station and ending at the Remote Emergency Shut-Down Valve (RESDV) on the Ngujima Yin FPSO. Coordinates are based on Geodetic Datum of Australia (GDA94).

Main Pipeline

 

Feature Name

KP*

Easting (mE)

Northing (mN)

Bend Radius (m)

1

Start Point

0

173 111

7 617 098

 

2

Tangent Point (TP) 1

2.911

175 758

7 618 118

 

3

Intersection Point (IP) 1

 

176 973

7 618 576

 

4

TP 2

5.344

177 503

7 619 745

 

5

TP 3

9.437

179 192

7 623 473

 

6

IP 2

 

179 971

7 625 191

 

7

TP 4

12.825

181 854

7 625 289

 

8

TP 5

13.334

182 363

7 625 316

 

9

IP 3

 

182 751

7 625 336

 

10

TP 6

14.107

183 121

7 625 452

 

11

TP7

16.946

185 833

7 626 295

 

12

IP 4

 

186 442

7 626 484

 

13

TP 8

18.204

190 135

7 628 877

 

14

TP 9

20.309

188 526

7 628 266

 

15

IP 5

 

189 221

7 628 860

 

16

TP 10

22.064

190 135

7 628 877

 

17

TP 11

26.614

194 684

7 628 963

 

18

IP 6

 

195 399

7 628 976

 

19

TP 12

28.007

196 016

7 628 617

 

20

End Point

28.410

196 708

7 628 306

 

* KP=Kilometre Point

 

 


 

SPECIFICATIONS

 

Design and Construction

 

The offshore pipeline must be designed and constructed in accordance with Offshore Standard DNV-OS-F101 – Submarine Pipeline Systems (Offshore Pipeline), which is incorporated in its entirety in Australian Standard AS2885.4 – Pipelines, Gas and Liquid Petroleum (Part 4: Submarine Pipelines). Specifically, the design and construction phase of the pipeline must comply with
DNV-OS-F101.

 

Basis of Design

 

The pipeline design is based on the following parameters:

 

Item

Item Description

Details

1

Design and Construction

Offshore Standard DNV-OS-F101 – Submarine Pipeline Systems (Offshore Pipeline), which is incorporated in its entirety in Australian Standard AS2885.4 – Pipelines, Gas and Liquid Petroleum (Part 4: Submarine Pipelines).

2

Outside diameter of pipe and riser

16” rigid pipeline: 406 mm

3

Wall thickness of pipe and riser (carbon steel)

16” rigid pipeline: 21.44 mm

Buckle arrestor pipes: 23.83 mm

 

5

Length

31 km (approximate)

6

Design life

20 years (approximate)

7

Pipeline Material

Carbon Steel Linepipe

8

Pipeline and Riser Steel Grade

DNV-OS-F101 Grade 450S

9

Maximum Allowable Operating Pressure

16” rigid pipeline: 25.5 MPag

10” flexible production riser: 25.3 MPag

11” flexible production jumper: 34.5 MPag

10

Minimum yield strength of pipe steel

16” rigid pipeline: 450 MPa

10” flexible production riser:

11” flexible production jumper: 450 MPa

11

Design Capacity

Peak oil rate: 60 kstb/d

Peak produced water rate: 104 kstb/d

Peak liquid rate: 111 kstb/d

12

Maximum Operating Temperature

16” rigid pipeline: 86C

10” flexible production riser: 75C

11” flexible production jumper: 86C

13

Maximum Design Temperature

16” rigid pipeline: 92C (5 km upstream and downstream of the Cimatti tie-in)

10” flexible production riser: 75C

11” flexible production jumper: 86C

14

Minimum Design Temperature

16” rigid pipeline: -11C

10” flexible production riser: -10C

11” flexible production jumper: -11C

15

Characteristics of substance proposed to be conveyed

Commingled petroleum (intermediate to heavy

19 API biodegradable oil

16

General plans and descriptions of pump stations, tank stations or valve stations and their equipment

To be confirmed.

17

General plans and description of pigging facilities

Subsea to subsea pigging capability is incorporated into the design via in-line connection onto each FLET on the 16” rigid flowline onto which a subsea pig launcher and receiver will periodically be connected.

18

Cathodic Protection

A sacrificial cathodic protection system will be installed on the main 16” pipeline and in-line structures. Full shell bracelet Aluminium Indium Alloy anodes will be strapped directly onto the pipeline and the MLPP coating will be bare in this section. Anode design and supply will be in accordance with DNV-RP-F103.