Variation of Pipeline Licence VIC/PL23 (Tarwhine to Barracouta Pipeline)

COMMONWEALTH OF AUSTRALIA

Sections 226, 264 and 708

Offshore Petroleum and Greenhouse Gas Storage Act 2006

VARIATION OF PIPELINE LICENCE VIC/PL23

(TARWHINE TO BARRACOUTA PIPELINE)

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/PL23, dated 31 August 1989 (the Licence), for which:

BHP Billiton Petroleum (Bass Strait) Pty. Ltd.

(ABN 29 004 228 004)

Esso Australia Resources Pty Ltd

(ABN 62 091 829 819)

are the registered titleholders, as set out below.

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

1. The text of the Renewal of Pipeline Licence on Page 1 is varied by:

1. deleting the words:

“for a term from 31 August 1989 to 24 August 2009 a licence to construct and operate a pipeline for the conveyance of liquid hydrocarbons along the route described in the First Schedule hereto”

and replacing with:

“Pipeline Licence VIC/PL23, in the offshore area of Victoria, subject to:

a)     the conditions set out in this licence;

b)     the provisions of the Act; and

c)      the provisions of the Regulations;

to construct and operate a pipeline for the conveyance of petroleum, of the design, size and capacity specified herein, along the route specified herein, in relation the seabed specified herein, and to operate the pumping stations, tank stations and valve stations specified in the positions herein, to have effect from and including the 31st day of August 1989.

The licensee shall at all times comply with the provisions of the Act and Regulations (amended from time to time).”

2.      The ‘INTERPRETATION’ on Page 1 of the Licence is varied by deleting the current text under the heading ‘INTERPRETATION’

and

substituting under the heading the following:

“In this document:

“the Act” means the Offshore Petroleum and Greenhouse Gas Storage Act 2006 and includes any Act with which that Act is incorporated, and words used in this document have the same respective meanings as in the Act; and

“the Regulations” means regulations made under the Act.

“Pipeline” has the meaning given in the Act.”

3.      The FIRST SCHEDULE of the Licence is varied by deleting the current text below the heading ‘FIRST SCHEDULE,’ ‘ROUTE OF PIPELINE’

and

substituting under the heading the following:

“The route of the Tarwhine to Barracouta pipeline is described in the table below, and displayed in the map below, commencing at the tie-in between the Tarwhine subsea facility and the first flexible jumper and terminates at the first valve upstream of the First Valve On (FVO) on the Barracouta platform. Coordinates are based on Geodetic Datum of Australia (GDA94).

Coordinate set above is based on GDA94 / MGA Zone 55, survey of pipeline centreline.”

4.      The SECOND SCHEDULE of the Licence is varied by:

1. deleting the current text under Part I Specification, Section (A) Design

and

substituting under the heading Section (A) Design the following:

“The pipeline design is based on the following parameters –

(a)   one 200 mm nominal diameter pipeline for the conveyance of liquid hydrocarbons;

(b)   a flow rate of 1,700 sm3/d (0.011 MMbbl/d) of liquid hydrocarbons;

(c)   an internal design pressure of 21,000 kPag;

(d)   a design temperature of 50⁰C;

(e)   a specific gravity of 2.9 for the 219.1 mm X 14.7 mm pipeline (including contents);

(f)     a maximum water depth during pipelaying of 47 m;

(g)   a pipeline length of 17.451 km;

(h)   a maximum allowable total strain on the line pipe during the reeling operation of two percent.”

b.      deleting from Part I Specification, Section (B) Materials of Construction, the words:

“The materials used in the pipeline shall conform to the following specifications-”

c.       deleting the current text under Part I Specification, Section (B) Materials of Construction, subsection (i) Steel Pipe

and

substituting under the heading subsection (i) Steel Pipe the following:

”The line pipe shall be in accordance with the requirements of the American Petroleum Institute Specification – API Spec 5L, 36th Edition for Grade X42 seamless pipe and Esso Australia Limited Supplemental pipe specification accompanying the pipeline licence application, and except for the riser pipework, the pipeline shall have the dimensions 219.1 mm O.D. with 14.7 mm W.T.

The main pipeline sits within a carrier pipe which provides thermal insulation and is made from API-5L Grade B seamless line-pipe.

The said riser pipework shall be API Spec. 5LX, Grade X-60 seamless pipe and have the dimensions 219.1 mm O.D. and 14.7 mm W.T.

The connection of the said riser pipework to the line pipe shall be made by flexible jumpers as detailed in the specifications accompanying the pipeline licence application.

The carrier pipe shall be in accordance with the requirements of the American Petroleum Institution Specification – API Spec. 5L, 36th Edition for Grade B Seamless pipe and Esso Australia Limited Supplemental pipe specification accompanying the pipeline licence application and shall have the dimensions 298.5 mm O.D. with 15.7 mm W.T.”

d.      deleting Part I Specification, Section (B) Materials of Construction, subsection (ii), Valves and Fittings.

e.       amending the numbering of Part I Specification, Section (B) Materials of Construction, subsection (iii) Protective Coating to be:

“(ii) Protective Coating”

f.        deleting Part I Specification, Section (C) Connection to Pipeline, Pipeline Scraper Sender and Scraper Receiver

g.      amending the numbering of Part I Specification, Section (D) Cathodic Protection to be:

“(C) Cathodic Protection”

h.      deleting Part I Specification, Section (E) Pressure Control.

i.        deleting Part I Specification, Section (F) Pressure Test.

j.        deleting all Part II Further Conditions, Sections (A) to (H).

The rest of the Second Schedule remains as stated in the licence instrument dated 31 August 1989.