Conductor Supported Platforms

Conductor Supported PlatformsWorleyParsons Experience

5 March 2015

Cliff Head

Designed by WorleyParsons

(Perth)

Installed 2006

Cliff Head

Cliff Head

Topsides Description –

3 level , total deck area =

900m2

(excl Sub cellar & Helideck)

Lift Weight = 475 t

Installed via Jackup rig

Cliff Head

Jacket Description –

Water depth = 18m

4 x vertical legs

“In leg” 30” OD conductors also act as piles

(drilled & grouted in place)

Lift Weight = 275 tonnes

Has been installed via Jackup rig

Natural period = less than 2 secs

Cliff Head Jacket Installation

Cliff Head Topsides Installation

Victoria

Designed by WorleyParsons (Perth)

Installed 2004

5 metres water depth Tripod jacket 80 tonnes Conductors connected with

leopard connectors Conductors drilled and grouted Topsides weight 85 tonnes Field Life 8 years

Victoria

Victoria

Kupe

FEED Design WorleyParsons (Melbourne)

Installed 2007

28 metres water depth

Kupe

Kupe Development Drilling

Kupe Topsides

Features include:-

. Topsides = 480t

. Substructure = 500t

Conductors act with piles to resist base shear

Plot Plan Review

H manifold arrg’t to limit footprint / reduce deck size

Kupe

Pohokura

Pohokura

Designed WorleyParsons (Perth)

Installed 2008

Situated 14km off the Taranaki coast of NZ, with a 8 well WHP (producing 200 MMSCFD) in 100ft water depth in a seismically active zone

Pohokura

Features include:-

. Jacket design for seismic & ship impact

• Jacket lift weight 500t

• Jacket transported vertically in H.L.Ship

. Deck lift weight 270 tonne

. 2 yearly planned maintenance visits.

. Extensive RAM underpinned all design aspects

Pohokura

Pohokura

Pohokura