bassgas offshore environment plan summary - operations ... · tes to its bu ent (hse) p performance...

Process OwneOrigin Energy When printed

Septemb

er: ABU SA Productio Resources Limited: , this is no longer a c

BassG

O

ber 2012

B

on Manager ABN 66 007 845 338 controlled document

Gas OSum

OEUP

BassGas Of

t.

ffshommary

P-T510

ffshore Env

Rev No: 0

re Eny - Op

00-PL

vironment

0

nvironperati

LN-EN

Plan SummOEUP-T5

Issue Date: 6/09/

nmentions

V-008

mary - Ope5100-PLN-E

/2012

t Plan

8

erations ENV-008

of 33

n


Table

1.

2.

3.

4.

5.

6.

7.


of Conte

Introductio

BassGas Of

2.1 L2.2 O2.3 Sy2.4 O2.5 L2.6 H2.7 S

Description

3.1 P3.2 B3.3 C

Environme

H(N

Origin Corp

Environme

6.1 E6.2 C6.3 O

Environme

B


ents

on ............

ffshore Facili

ocation .....Operational Dystem Overv

Offshore Pipeogistics .....

Helicopters ..upply and Su

n of Receivin

hysical EnvirBiological EnvCoastline and

ntal Impact

High energy mNatural dispe

porate Enviro

nt Plan Cons

mployee ConConsultation Ongoing Stake

nt Plan Liais

BassGas Of

t.

...............

ities Activity

...............Details .......view ..........eline ........................................

upport Vesse

ng Environme

ronment .....vironment ...d Marine Prot

Assessment .

marine envirersion achiev

onment Polic

sultation .....

nsultation ...with the Regeholder Cons

ons ...........

ffshore Env

Rev No: 0

...............

y Description

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ent ...........

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ronment withved) .........

cy ............

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vironment

0

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Plan SummOEUP-T5

Issue Date: 6/09/

...............

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current flow...............

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/2012

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erations ENV-008

of 33

......... 3

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......... 5

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......... 8

......... 8

......... 8

......... 9

........ 10

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........ 12

........ 13

pth ........ 15

........ 24

........ 26

........ 26

........ 26

........ 26

........ 33


1.

Origin EnProject.kilometr

Commerplatformto incorpdiscover

An EnvirThe EP wAuthoritthe Bassand Gree

Origin Enas it relaEnvironmand the part of tSystem (

The ongooperatiocommitmactivitiepractica


Introdu

nergy Resour The BassGares south of

rcial productm via two proporate additries in the re

ronment Planwas acceptedty (NOPSEMAsGas Offshoreenhouse Gas

nergy is comates to its bument (HSE) P performancethe impleme(HSEMS).

oing compliaonal criteria ment to ensues (associatesble, elimina

B


ction

rces Ltd (Orias project inKilcunda, a g

tion of gas cooduction weltional producegion.

n (EP) is in pd by the Nat

A) on 29th Auge Facilities Es Storage (En

mmitted to alusiness. ThisPolicy and Ste that must ntation of th

ance monitoris an integra

ure that all as and sub-coted or minim

BassGas Of

t.

igin Energy) cludes the Ygas pipeline

ommenced inlls, Yolla-3 action wells fr

lace for the tional Offshogust 2012. TEP in accordanvironment)

ll aspects of s commitmeandards, whbe attained he HSE Policy

ring, auditinal part of theadverse effecontractors) amised.

ffshore Env

Rev No: 0

is the majorYolla A offsho and an onsh

n June 2006 and Yolla-4. rom the Yoll

BassGas Offore PetroleumThis EP Summance with ReRegulations

environmennt is express

hich form the by all operay and Standa

g and reporte operation octs on the enre identified

vironment

0

rity owner anore platformhore gas plan

and is curre The offshorea field and a

fshore Facilitm Safety andmary documeegulation 11( 2009.

tal protectiosed in the coe foundationtions and asards is the O

ting against of the BassGnvironment rd, assessed a

Plan SummOEUP-T5

Issue Date: 6/09/

nd operator m, located in nt near Lang

ently producee facilities halso to tie-in

ties [OEUP-Td Environmenent summaris(8) of the Of

on and biodivompany’s He of its manasociated con

Origin Energy

legislative aas project aresulting fro

and as far as


/2012

of the BassG Bass Strait 1 Lang in Vict

ed from the have been den other gas

T5100-PLN-ENntal Managemses the contffshore Petro

versity consealth, Safety gement pracntractors. A HSE Manage

nd Origin Ennd Origin Enm Origin Ene reasonably

erations ENV-008

of 33

Gas 147 toria.

Yolla esigned

NV-005]. ment ent of

oleum

ervation and ctices, vital ement

ergy nergy’s ergy


2.

2.1 The YollLicence the locaplatform(GDA94,

The BassStrait tohorizontof Kilcunlength.


BassGas

Locationa field lies i comprises fotion in relat

m is Latitude Zone 55).

Figure 2-1

sGas Offshoro the Lang Latal directionanda at 368,2

B


s Offshor

n Productionour whole acion to the Vi 39º 50’ 40.5

Location o

re Pipeline roang gas plantal drill (HDD70 East and

BassGas Of

t.

re Facilit

n Licence T/creage blockictorian and 5”, Longitude

of Yolla Gas

oute (see Figt in Victoria ) shore cross 573,1120 No

ffshore Env

Rev No: 0

ties Activ

L1, located ks (blocks 326 Tasmanian ce 145º 49’ 06

Field, T/L1

gure 2-2) run and has a tosing entry poorth. The of

vironment

0

vity Desc

in the Bass B62, 3334, 33coastlines. T6.3” or 5,588

Production

ns from the Yotal length ofoint is approxffshore sectio

Plan SummOEUP-T5

Issue Date: 6/09/

cription

Basin. The T/35 and 3467

The location 8,824 North,

Licence, Ba

Yolla A platfof 180 km. Tximately 1 kon of the pip


/2012

/L1 Producti). Figure 2- of the Yolla , 398,910 Eas

ass Basin

orm in centrThe pipeline km east of thpeline is 147

erations ENV-008

of 33

ion 1 shows A st

ral Bass

he town .5 km in


2.2 The Bassfor the Yapproxim(kL) per pipeline pipeline entering


Figure 2-2

OperatiosGas projectYolla Mid Lifemately 52 Te day of cond to the onsho from the pla

g the Lang La

B


2 BassGas Of

onal Detailt commencede Extension erajoules (TJensate. Theore receivingatform to shang gas plant

BassGas Of

t.

ffshore Pipe

ls d production(MLE) ProjecJ) per day ofe platform exg facilities v

hore. The pit.

ffshore Env

Rev No: 0

eline Route

n in June 200ct constructif sales gas, 2xports dehyd

via a 147 km peline conti

vironment

0

06. Prior to ion the platf00 tonnes pedrated gas a long 250 mmnues onshore

Plan SummOEUP-T5

Issue Date: 6/09/

the Decembform was proer day of LPGnd condensa

m nominal boe for anothe


/2012

er 2011 shutoducing G and 445 kiate via a twoore (NB) rawer 34 km befo

erations ENV-008

of 33

tdown

lolitres o-phase w gas ore


Completfrom thefull timeexisting in new pproducti

The mod

2.3 The Yollskirted jlocation

After co


tion of the Me field but the maintenanc wells by intrproduction wion but simp

des of operat Norma

opera

Norma22 pe

Non-m

In excon a 2campa

Figure 2-3

System Oa A Platformjacket found.

mpletion of Yolla

accom

8 cond

B


MLE project whrough the ince and thereroducing com

wells to the fly replace le

tion followinal basic man

ations and ro

al fully mannrsons on boa

manned oper

ceptional circ2 shift (24/7 aigns, such a

The Yolla A

Overview m is a self-ins

ation design

the MLE proA Platform i

mmodation fa

ductors (2 in

BassGas Of

t.

will not increnstallation oefore less prompression anacility also w

evels from w

ng completionned operatioutine mainte

ned operatioard (POB) for

ration; and

cumstances, operations) as well worko

A platform w

stalling Drilln to account

oject, the offn 80.5 m wa

acilities for u

nstalled for e

ffshore Env

Rev No: 0

ease productf an accommoduction downd pumping fwill not likel

wells in declin

on of the MLEon with typicenance activ

on with up tor wireline an

, manned op basis and a over and con

with new qu

-Ace platfor for the geot

fshore platfoater depth

up to 37, no

existing prod

vironment

0

tion from nammodation mown-time. It facilities. Fuy result in sune.

E project wocally 5 to 8 pvities.

o 19 persons nd planned m

eration with maximum POnstruction w

uarter instal

m designed technical con

orm facilities

rmally only 5

duction wells

Plan SummOEUP-T5

Issue Date: 6/09/

meplate (67 odule (Figure will also extuture drillingubstantially

orks are: persons on b

sleeping on maintenance

h up to 37 sleOB of 44. Th

works.

lled

by Arup withnditions at th

s will compri

5-8 (new)

s)


/2012

TJ’s per daye 2-3) will alltend productg campaigns increased

board for bas

platform an activities.

eeping on plahis mode is f

h a stiction the platform

ise:

erations ENV-008

of 33

y) per se low for tion from that tie-

sic

nd up to

atform for major

type


The offssatellite

The Yolland instropen dra

Chemicaoperatiopreventaand corrrequired


two p

produ

produ

compr

conde

piggin

drains

produ

flare s

diesel

chemi

power

hore platfore telemetry l

a A platformrument air fain systems a

al injection fon where meative measurrosion inhibitd for use, and

Figure 2-4

B


roduction w

uction manifo

uction faciliti

ression facili

ensate pump

ng facilities

s (some new

uced water fa

system

l storage (so

ical storage

r generation

rm (see Figurink from the

m facility is sacilities. It aand provision

facilities are ethanol may re during stator are also pd as such thi

4 Yolla Platf

BassGas Of

t.

ells, trees a

old

ies for separ

ities (new)

ing (new)

tie-ins)

acilities and

me new)

and injectio

(one genera

re 2-4) shall e onshore gas

elf sufficienalso has a fun for reproce

provided onbe required

artup. Other provided. Ais equipment

form with ac

ffshore Env

Rev No: 0

nd chokes

ration and de

dump caisso

on, and

ator replaced

be ‘normallys plant.

t in terms ofll safety shuessing of liqu

n the platfor to mitigate chemicals int present, det has been m

ccommodati

vironment

0

ehydration o

on

d).

y’ manned a

f power genetdown systeuids.

m for times against hydrncluding dememulsifier an

mothballed.

on module

Plan SummOEUP-T5

Issue Date: 6/09/

of gas and liq

and will be co

eration, fuelm including

of upset conrate formatiomulsifier, revnd reverse d


/2012

quids

ontrolled via

l gas conditio a flare, clos

nditions or aon or used averse demulsemulsifier a

erations ENV-008

of 33

a the

oning sed and

bnormal s a sifier re not


2.4 The 350mto the on

The subs147 km aKilcundaS-lay meof approHDD showhich mcontinue

The offslength. Aluminiuon the seprotecteand intecontinuo

The pipevalve stacompounoperatio

The offsLast Valvand is coprotecteplatformdamage substruc

2.5 Followinpersonnemanned

Wirelineper year

2.6 Helicoptpreferrehelicopt

The heliaircraft.transporTooradinbe appro

A weathambienthelicopt

The plathelicopt


OffshoremmNB offshonshore gas p

sea pipeline along the seaa on the Victethod. The soximately 1.4re crossing e

meets up withes for 32.4 km

hore pipelin The riser, suum/ zinc braea bed and ted by an impernal corrosioous injection

eline has a siation is set bnd located oon with the v

hore pipelinve Off (LVO)ontrolled by ed by a High m, to the wes from drill-ricture and thi

Logisticsng completioel. The onsh and un-man

e/well intervr and could r

Helicopteters are the ped means of eer will not a

copters used Origin polic

rt personnel n (Victoria) aoximately th

er station ont temperaturer pilots to o

tform has heer navigatio

B


e Pipeline ore pipeline

plant at Lang

connects to a floor in a dtorian coastlishore crossin4 km length entry point ish the subsea m as a burie

e is located ubmerged piacelet type sthe riser to ppressed curreon is controln of corrosion

ingle Main Liback from Baon private prvalve hand-w

e and riser a). The LVO i the platform Integrity Prest from the sg or crane os provides im

n of the MLEore gas plan

nned periods

vention operarequire up to

ers primary formevacuation.

always be saf

d are generacy stipulates offshore. Apand the Yollaree return h

n the platforre and transmobtain pre-fl

licopter radin purposes.

BassGas Of

t.

exports dehg Lang.

the foot of direct route ine. The subng consists ofand passes ws at the Kilc pipeline sec

ed onshore pi

on the seabeipeline and sacrificial anprovide proteent cathodic led by separn inhibitor in

ine Valve (Mass Highway aoperty. The

wheel stored

are able to bs located ab

m Emergencyessure Protesouth-westeroperations. Tmpact protec

E project, thnt control roo.

ations are exo 16 personn

m of transpo Depending ofe or practic

lly Sikorsky S that only twpproximate fa Platform ishelicopter fli

rm measuresmits the datalight real-tim

io communic

ffshore Env

Rev No: 0

hydrated gas

the riser at to the landfbsea pipelinef a Horizontawell under thunda landfalction. From tipeline to th

ed and stabishore crossinodes are instection in cas protection sration and dento the pipel

LV) station nand is a buri

e 350NB MLV at the gas p

be isolated frbove the waty Shutdown (ection Systemrn jacket legThe riser is lction.

e Yolla A plaom will remo

xpected to oel for approx

rt for personon the accideable.

S-76, Aerospwin-engine hflight time (os 45 minutesghts per wee

s wind directa to the onshme weather i

cation links a

vironment

0

and conden

the Yolla A pfall located se section waal Directionahe surf zonell and is drillthe shore croe gas plant a

ilised by a cong are protectalled along se of coatingsystem. No ehydration oline at the Y

near the shoied installati ball valve is

plant.

rom the plater level on t(ESD) systemm (HIPPS). Tg, was selectocated withi

atform will botely control

occur approxximately 10

nnel to and fent and evac

patiale Superelicopters wone way) bet. During norek to the pla

tion, wind sphore gas planinformation

and a non-di

Plan SummOEUP-T5

Issue Date: 6/09/

sate from th

platform andsouth east ofas installed bally Drilled (H, beach and led out to thossing the Raat Lang Lang

oncrete weigcted by prote the full lengg damage. Tinternal pipef the well fl

Yolla A platfo

re crossing aion in a smals locked ope

tform topsidethe riser just

m. It is a highThe pipeline ted to avoid in the Yolla

be ‘normallyl all normal o

ximately once days.

from the platcuation scen

r Puma or otwith two pilottween the hermally mannatform.

peed, baroment control ro before depa

rectional be


/2012

he Yolla A pla

d runs approxf the townshby the conveHDD) buried coastal dunehe HDD exit paw Gas Pipeg.

ght coat alonective coatingth of the piThe shore croe coating is puids and the

orm.

at Kilcunda. ll unobtrusivn under norm

es facilities bt below Cellah integrity v approach to the possibiliA platform j

’ manned wioperations d

e or twice pe

tform and thario, evacua

her approvets be used toelicopter based periods t

etric pressuroom. This allarting base.

eacon (NDB) f

erations ENV-008

of 33

atform

ximately ip of ntional pipeline es. The point line

ng its ngs. peline ossing is provided

e

The ve mal

by the ar Deck valve o the ity of jacket

ith 5-8 during

er well

he ation by

d o se at there will

re and lows the

for


2.7 To suppoper mon

The suppA platfor

Additionsurvey aprogramdebris suclose to


Supply aort Yolla A pth during no

food f

diesel

produ

maint

ply vessel wirm.

nal offshore sand checks ofm. In additiourveys and se the Yolla A

B


nd Supporplatform opeormal manninfor manned o

l fuel

uction chemic

tenance equi

ill also be us

support vessf both the pln, an ROV sueabed samplplatform.

BassGas Of

t.

rt Vessels rations a supng and will doperations

cals and

ipment and m

sed to offload

els will be relatform and urvey for theling to collec

ffshore Env

Rev No: 0

pply vessel wdeliver:

materials.

d domestic a

equired to u pipeline, as e future drillct geotechni

vironment

0

will visit the

and industria

ndertake Re a part of oning campaigcal data from

Plan SummOEUP-T5

Issue Date: 6/09/

platform ap

al waste gen

emotely Operngoing asset n is requiredm the existin


/2012

proximately

erated on th

rated Vehiclintegrity mod. This inclung spudcan h

erations ENV-008

of 33

once

he Yolla

e (ROV) onitoring udes holes


3.

The Bass(Origin Ewithin B

The ZoneYolla A pcoastline

Further Pipeline

3.1 Bass Straapproximand Flind

Bass Strais an oceBasin is predomisupplied

3.1.1 Bass Straclimate low preswesterlyaverage

The windsouthwefrom theof 8 – 10– 21.3 m13 - 21°C600 - 800

3.1.2 The tidedue to thsimultanwhere ththe centmagnitueffects ochanging

The tidaThe loweTidal cunorthwe

Local wiflow towgenerallyover themaximum


Descrip

sGas EnvironEnergy, 2002ass Strait th

e of Potentiaplatform itsee stretching

details on th Oil Spill Con

Physical ait is a sea stmately 240 kders Island.

ait lies on theanic region an area of conantly clasti

d to region.

Climate ait is locatedis determine

ssure systemy wind regim during the w

d directions est (southwese northwest 0.3 m/s, incr

m/s, with eveC during sum0 mm a year

Tides anes of central he astronomneously and ahe two wavetral strait incdes of the tiof meteorolog the phasing

al range at thest and highrrents at the

est respective

nd stress anwards the easy decrease w

e water deptm current sp

B


ption of R

nment Effect2), provides aat is proxima

al Impact (Zelf, the pipel from Wester

he environmentingency Pla

Environmtrait separat

km wide at it

he southern m approximateontinental shic sediments

d on the norted chiefly bys (extratropi

me to Bass Strwinter month

in central Basterly winds)(northweste

reasing to 12en stronger gmmer and 9 -r.

nd Current Bass Strait a

mical tide. Tas a result, ies meet. Thecreases with ide within Baogical phenog or timing o

he platform iest astronome platform mely.

d regional dst-northeastwith increasih are about

peed is estim

BassGas Of

t.

Receiving

ts Statementan extensiveal to the Yol

PI) for the Bline route, trnport Bay to

ental impactan (OSCP) [O

ent ting Tasmanits narrowest

margin of theely 50 km ofhelf. A shallos in the basin

thernmost zoy the presencical cyclonesrait and are hs.

ass Strait ha) during Marc

erly winds) du2 – 15 m/s dugusts. Air te- 14°C during

ts are semi-diuhe tidal wavn the centree magnitude relatively stass Strait aremena may b

of the tide.

is estimatedmical tides amove in an el

rift tend to d. Typical neing depth. At 0.21 m/s an

mated at abo

ffshore Env

Rev No: 0

g Environ

t/Environmene descriptionlla A platform

assGas offshhe nearby iso Corner Inle

ts identified OEUP-T5100-

ia from the s point and co

e Bass Basin ff the Tasmaow basemenn to the nort

one of what ce of subtrops). Migrating likely to affe

ave a slightlych to April, auring May touring storm omperatures g winter. Th

rnal with theves enter Base of the straie of the tidaltrong tidal ce relatively ube significant

to be 2.3 mt the platforlipse and ten

dominate thear surface ct spring tide

nd the 100-yeut 0.41 m/s.

vironment

0

nment

ntal Impact S of the marim and associ

hore activitieslands (Kent et.

are provided-PLN-PFM-004

south of the ontains man

in water denian coast. t in the sout

th. There is

is called thepical high prg low pressuect the area

y higher proband a slightly

o July. Windonset and rea in central Bahe average r

e dominant lss Strait fromit there is anl currents theurrents at eiuniform and t, causing va

m during sprinrm are -1.47 nd to flood a

e mean currcurrent speeds the maximear average .

Plan SummOEUP-T5

Issue Date: 6/09/

Statement (Ene environmiated pipelin

es covers theGroup, King

d in the Yoll4].

Australian my islands inc

pths betwee The southerth gives way little sedime

e ‘Roaring Foressure ridgere systems t

a every three

bability of bloy higher pros will have taching typicaass Strait arerainfall range

large-scale wm the east ann area with sen increase ither end. T predictable.ariations in le

ng tides and m and +1.33and ebb to th

rents in the rds are 0.1-0.

mum current recurrence i


/2012

EES/EIS) docment and biodne infrastruc

e area around Island) and

la A Platform

mainland. It cluding King

en 50 and 80 rn margin of to thick (>7ent currently

orties’ and ites and the mtypically brine to five days

owing from tbability of b

typical meanal maximume on averagees from abou

water movemnd west almosmall tidal cuas the distan

The times an. However, evel and also

1.7 m at ne3 m respectihe southeast

region and ty.26 m/s whicspeeds averainterval (ARI

erations ENV-008

of 33

cument diversity ture.

d the the

m and

is Island

m, and the Bass

7 km) y being

ts igratory

ng a s on

the blowing n speeds s of 14.5

e ut

ments ost urrents nce from nd the o

eap tide. ively. t and

ypically ch aged )


3.1.3 In Bass Sthe islanSouthernseabed ageneratetwo wav

The locawest andof 5 - 7m

3.1.4 Prevailinautumn about 15warmer water temaximum

3.1.5 The bathincreasinStrait is carbonatSeabed spipeline water deGeoSoluwith roc

Benthic with sevbryozoanfeaturesplatform

3.2 Species Conservasouthernsouthernor repro

The opemovememonitorionly monevident was in cUniversitas the mwas cons

Great wharea, bubeen repTasmani


Waves Strait interacnds and gapsn Ocean intoand modifieded by wind wve-energy ba

al wave climad southwest.m can occur

Water Tng winds ten through spri5-18°C with months somemperatures m of more th

Seabed ahymetric mang gradually generally lote. surveys have route. Bathepths of abotions (2001)

cky outcrops

sampling in veral polychans and brachs identified, m, or along th

Biologicathat are listeation (EPBC)n right whalen elephant seduction.

ration of theents of migraing noise durnitored durinin the recordlose vicinity ty, 2005). T

main potentiasidered unlik

hite sharks aut are generaported from an waters.

B


ction betwee between th

o Bass Strait.d as it passeswithin Bass Snds.

ate is derive. Wave heigduring storm

emperatud to maintaiing. Near-sua similar spre thermal st range from han 21°C at

and Sedimap for the are to reach a mw due to the

e been conduhymetric maut 80 metres indicates th in one or tw

Bass Strait haete familieshiopods beingsuch as activhe pipeline r

al Environmed under the) Act 1999 me, fin whale,eal. Howeve

e platform isatory speciesring construcng constructdings, where to the recei

The identifieal impact on kely to have

are uncommoally known to around most

BassGas Of

t.

en sea and swe Australian Some swell s into shallowtrait and the

ed principallyhts range fro

m events.

ure in a well mixurface water read of watetratification a minimum the surface

mentation ea indicates maximum of e small supp

ucted at the ps indicate ts at the plat

hat the seabewo locations.

has consistens, pycnogonidg the most pve shelves, oroute.

ment e Commonweay migrate o humpback wer, none of t

s considered s. A noise asction and option due to de true and pyiver (based od movement migrating w any ongoing

on and are no frequent wt of the sout

ffshore Env

Rev No: 0

well and the mainland. is blocked cwer waters oe conditions

y from locallom 1.5 m - 2

xed water co temperatur

er temperatu can occur, pof about 10. in summer.

that the sea about 80 m ly from river

Yolla A Platthat the seaftform locatioed is compris

ntly shown a ds, pericarid

prolific specior edge reef

ealth Environor move throwhale, grey the species li

unlikely to hssessment waerational acelays in comygmy blue won high signat of vessels t

whales. The g significant

not known towaters arounthern half of

vironment

0

e resultant wThis restrict

completely aof Bass Strait at any locat

ly generated2 m with per

olumn to 80 mres during theures throughoparticularly i.5°C near the

afloor is gent at the platfors and the re

form (the plfloor is gentlon. Survey dsed of sandy

highly diverd crustaceanes. There w systems wit

nment Proteough the ZPI,nurse shark isted are dep

have any signas undertaketivities (Curt

mmissioning. whales were ral levels receto and from t movement oimpact on w

o specificallyd seal coloni

f the contine

Plan SummOEUP-T5

Issue Date: 6/09/

wave motion ts the accessand some reft. There aretion will be t

wind wavesiods of 8 - 13

m deep partese times geout the watein calmer pee seabed in w

tly sloping worm. Sedimelatively low

latform) localy sloping, d

data collectey, silty and c

rse array of is, opisthobra

were no signithin the direc

ection and Bi, including th (eastern), gpendent upo

nificant impen in 2004, wtin Universit Several wharecorded andeived) on onethe project aof vessels wa

whale migrati

y breed, or bies. Grey nu

ent, but are u


/2012

is complicats of swell frofracted by the also waves the result of

s mostly from3 s, although

ticularly durienerally ranger column. Deriods. Annuwinter to a

with water deentation in B

w productivity

ation and aloropping grad

ed by Thales layey sedime

invertebrateanch molluscficant seabect vicinity of

odiversity he blue whareat white s

on the area f

act on the with the intety, 2005). Noale species wd at least one occasion (Carea was ideas a minor rising behaviou

e resident inurse sharks huncommon i

erations ENV-008

of 33

ted by om the he these

m the h heights

ng ge from During ually,

epths Bass y of

ong the dually to ents,

fauna, cs, ed f the

le, hark and for food

ention of oise was were ne whale Curtin entified sk and ur.

n the have n


Four speendangeAct, havnets, incadheren1973/78

MigratorAustraliamay pasForagingseabird b

Disturbadisposal BassGas

3.3 In the imHeritagewetlands

Bass Straareas are

The clos

Of these


ecies of turtlered or vulneve been obsecidental by-cce to the Int) on the plat

ry seabirds pa Migratory Bs through or

g groups of sebreeding col

ance to the C of produced Oil Spill Con

Coastlinemmediate vice sites, areass.

ait does howe declared u

Victorwhichsanctu

Tasmain Tas

CommAustra

sest marine p Wilson

pipeli

Bunur

Kent Gplatfo

e, the Bunuro

B


les (loggerheerable under erved in Basscatch and ingternational Ctform will av

rotected by Bird Agreemer near to the eabirds werelonies locate

Commonweald formation wntingency Pla

e and Maricinity of the s listed or no

wever supporunder severarian Nationah establishes uaries in Vic

anian Naturesmanian wat

monwealth EPalia.

protected arns Promontone;

rong Marine N

Group Marineorm.

ong and the

BassGas Of

t.

ead, green, h the Environ Strait. Thegesting mariConvention fvoid increasi

internationaent (JAMBA) well locatioe also sporaded in the per

lth marine awater for thean (OSCP) [O

ine Protec BassGas offsominated on

rt a number oal pieces of lel Parks (Mar 13 highly prtorian water

e Conservatiers; and

PBC Act, wh

reas to the Bory Marine Na

National Par

e Nature Res

Kent Group

ffshore Env

Rev No: 0

hawksbill andment Protec

ese are primane debris. T

for the Preveng marine d

al agreement and China-A

on on route tdically sightermit area.

rea is limitee platform lo

OEUP-T5100-

cted Areasshore faciliti the Register

of marine pregislation, inine Nationalrotected marrs;

on Act 2002,

ich establish

assGas offshational Park

rk approxima

serve 90 km

are consider

vironment

0

d leatherbacction and Bioarily at risk fThe waste mention of Polebris.

ts such as thAustralia Migto islands in ed in the are

d to a potenocation. In tPLN-PFM-004

s ies there arer of the Nati

rotected areancluding thel Parks and Mrine nationa

, which esta

hes 13 marin

hore facilities is approxima

ately 20 km t

to the east

red to be in

Plan SummOEUP-T5

Issue Date: 6/09/

ck), which arodiversity Cofrom entangl

management llution from

he Bonn Convgratory Bird ABass Strait a

ea. There ar

ntial hydrocathe event of4] will be im

e no marine onal Estate

as. These m:

Marine Sanctl parks and 1

blishes 7 ma

e protected

s are: ately 70 km

to the east o

of the pipeli

the ZPI.


/2012

re listed as onservation (lement in fisprogram (incShips (MARP

vention, JapAgreement (and/or Tasmare however,

arbon spill anf an oil spill,

mplemented.

reserves, Woor listed Ram

marine protec

tuaries) Act 211 smaller m

arine nature

areas aroun

to the east o

of the pipelin

ine and offsh

erations ENV-008

of 33

(EPBC) shing cluding OL

an-CAMBA) ania. no

nd the the

orld msar

cted

2002, marine

reserves

nd

of the

ne; and

hore


4.

To satisfidentifieactivitieat and n

A systemthe impaimplemeto the exPracticasummari


Environ

fy the required the potenes. In summaear the plat

matic processacts and riskentation of sxisting envirble (ALARP)ised in Table

B


nmental I

rements of thtial environmary, the EES/form and pip

s of hazard ik to the envirpecific cont

ronment from. The enviroe 4-1.

BassGas Of

t.

Impact A

he EPBC Actmental effec/EIS indicatepeline locati

dentificationronment fromrol measuresm the BassGaonment impa

ffshore Env

Rev No: 0

Assessme

, the Origin cts and risks ed there wouons during in

n and risk asm the BassGs to prevent as offshore facts identifie

vironment

0

nt

Energy EES/ from platforuld be minornstallation a

ssessment waas Offshore or mitigate acilities are ed from thes

Plan SummOEUP-T5

Issue Date: 6/09/

EIS for the Brm constructr, localised eand operation

as completedFacilities. T the environm As Low As Rse risk assess


/2012

BassGas projetion and opeeffects to then.

d in order toThrough the ment impact

Reasonably sments are

erations ENV-008

of 33

ect erational e biota

o review

ts, risks

PrOrW

A

R

PW

rocess Owner: ABU SA Produrigin Energy Resources Limitehen printed, this is no longer

Table 4-

Aspect

Risk

ID

Routine Impacts

rimary Wastes

R1

ction Manager ed: ABN 66 007 845 338 r a controlled document.

1 Environmenta

Hazard P

Disposal of Produced Water

•

al Risk Assessmen

Potential Impact

Discharge of hydromercury and BTEXmarine environme

Rev No: 0

nt Summary

Risk wcontrplace

Cons

eque

nce

ocarbons, X into the ent

2 /

Mod

erat

e

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

Cert

ain

Hig

h

Platfsyste

Assetsyste

Oil infunct

Train Addit

Reinjdurinaddit

Storapract

Retroweiginstaplatf

Issue

trol Measures and o

form / process desigem design. t integrity program ems (ORACLE) n Water Analyser antion. ning and competenc

tional controls consjection of producedng initial design andtional well and provage and removal to ticable due to the hospective implemenht constraints on th

all compression and form.

BassGas Offsh

Date: 6/09/2012

other consideratio

gn; Produced water

(CCPS-10.1) and m

nd technical monito

cy of personnel (CC

sidered but rejected water into the Yod discounted based vision of water rein shore of produced high volumes of prontation of such a syhe platform followi accommodation m

hore EnvironmeOEUP-T5

ons

r disposal / dump c

maintenance manage

oring from engineer

CPS-13)

d: lla reservoir was co on cost (drilling of

njection system). water was not deeoduced water from ystem is not viable dng recent modificaodules on the Yolla

ent Plan Summ5100-PLN-ENV-

Page 1

Rik

ih

Cons

eque

nce

caisson

ement

ring

onsidered an

emed to be the wells. due to tions to

a A

2 /

Mod

erat

e

mary 008

4 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

3 /

Unl

ikel

y

Med

ium

(ALA

RP)

PrOrW

A

M


Aspect

Risk

ID

R2

Minor Wastes R3


Hazard P

Flaring •

Sewage and domestic food wastes

•

Potential Impact

Decline in air quapollution, contribglobal warming

Localised increaseloading

Rev No: 0

Risk wcontrplace

Cons

eque

nce

lity / air utions to

1 /

Min

or

e in nutrient

1 /

Min

or

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

3 /

Unl

ikel

y

Low

Assetsyste

Flare Back Back Flare Train Start

2 /

Hig

hly

Unl

ikel

y

Low

Food Sewa Biode High

dept Ther

Addit

Remowoulfacilipersoaddit

Issue

trol Measures and o

t integrity program ems (ORACLE) e Auto-ignition systek up flare ignition/pk up purge protectioe rate monitored, rening and competenct-Up Procedures (CC waste macerated

age macerated via vegradable chemical energy marine envh (Natural dispersioe are no sensitive m

tional controls consove all sewage and d require additionaity which introduceonnel. It is not in actional environmenta

BassGas Offsh

Date: 6/09/2012

other consideratio

(CCPS-10.1) and m

em and flame out mpilot system (propanon system (nitrogenecorded and reportcy of personnel (CCCPS-08) prior to disposal to vacuum system priols used vironment with signon achieved) marine ecosystems

sidered but rejecte macerated waste tal vessel visits and tes hygiene issues. Tccordance with stanal and health risks.


ons

maintenance manage

monitoring ne) n) ted CPS-13)

sea or to disposal to sea

ificant current flow

in the vicinity of th

d: to shore. Rejected temporary storage ohis is not supportedndard practice and


Page 1

Rik

ih

Cons

eque

nce

ement

1 /

Min

or

a

w, water

he platform

as this on the d by site introduces

1 /

Min

or

mary 008

5 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

1 /

Rem

ote

Low

(ALA

RP)

1 /

Rem

ote

Low

(ALA

RP)

PrOrW

A


Aspect

Risk

ID

R4

R5


Hazard P

Emissions from combustion engines

•

Deck drainage •

Potential Impact

Decline in air quapollution, contribglobal warming

Discharge of cheminto the marine eand impact on maspecies.

Rev No: 0

Risk wcontrplace

Cons

eque

nce

lity / air utions to

1 /

Min

or

micals / oil nvironment arine

1 /

Min

or

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

Cert

ain

Hig

h

Assetsyste

Main diese

Locaconfi

Equip

6 /

Alm

ost

Cert

ain

Med

ium

Platfareaswast

Assetsystedeck

Traincovewast

Addit

Storaspillsthe h

Retroweiginstaplatf

Issue

trol Measures and o

t integrity program ems (ORACLE) Power Generators el) tion of exhausts in irmed acceptabilitypment selection (fu

form design – includs, bunded storage ae (CCPS-10.2). t integrity program ems (ORACLE) spill kk ning and competencrs and bungs in usee oil transfer

tional controls consage and removal to s, diesel / chemicalhigh volumes of rainospective implemenht constraints on th

all compression and form.

BassGas Offsh

Date: 6/09/2012

other consideratio

(CCPS-10.1) and m

and turbine design

well ventilated arey of helideck and HVuel gas rather than

ding enclosed drainaareas for used oil an

(CCPS-10.1) and mkits installed at all

cy of personnel (CCe during operations

sidered but rejecte shore of deck runol spills) was not deen water that would ntation of such a syhe platform followi accommodation m


ons

maintenance manage

(run off fuel gas –

eas and Exhaust stuVAC inlets diesel operated)

age systems for opend other liquid haza

maintenance manage machinery points o

CPS-13) including uswith an higher risk

d: off (including hydrocemed to be practica be collected.

ystem is not viable dng recent modificaodules on the Yolla


Page 1

Rik

ih

Cons

eque

nce

ement

rather than

dy

1 /

Min

or

erational ardous

ement on the main

se of drain of spill i.e.

carbon able due to

due to tions to

a A

1 /

Min

or

mary 008

6 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

2 /

Hig

hly

Unl

ikel

y

Low

(ALA

RP)

2 /

Rem

ote

Low

(ALA

RP)

PrOrW

A

PIm


Aspect

Risk

ID

hysical mpacts

R6

R7


Hazard P

Noise from platform, supply vessels or helicopter operations

•

•

•

•

•

Light emissions from platform or supply vessels

•

Potential Impact

Behavioural changfauna (localised avoidance/attract

Hearing impartmepathological damamarine fauna

Increase stress levmarine fauna

Disruption to mariunderwater acous

Secondary ecologialteration of predrelationship

Disturbance of miseabirds and othethat may be attralighting from the support vessels.

Rev No: 0

Risk wcontrplace

Cons

eque

nce

ge in marine

tion) ent and age to

vels in

ine fauna stic cues ical effects –

dator prey 1

/ M

inor

gration of er marine life acted to rig and

1 /

Min

or

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

3 /

Unl

ikel

y

Low

Noisepract

CompDolph

Helicsurfa

Assetsyste

Trainlevel

No evimpa

Addit

Use oavailgene

3 /

Unl

ikel

y

Low

The pmain

Lightlighti

Lightnavig

Issue

trol Measures and o

e levels on the plattical for OH&S reaspliance with the Auhin Watching (DEH copter flight paths aace. t integrity program ems (ORACLE) ning and competencls will be picked upvidence that platfo

acts the resident se

tional controls consof solar energy for pable space on the p

erate sufficient powplatform is not on m

n land and there hasting facing outwarding / spot lights at ting levels requiredgational requiremen

BassGas Offsh

Date: 6/09/2012

other consideratio

form have been assons

ustralian National G 2005)Vessels and Hand elevation minim

(CCPS-10.1) and m

cy of personnel (CC and acted upon

orm, supply vessels al population.

sidered but rejectepower generation. platform for the nu

wer. major migration pas been no known ens only turned on as life raft locations to maintain platfonts.


ons

sessed and minimise

Guidelines for WhalHelicopter mises noise levels a

maintenance manage

CPS-13) abnormal /

or helicopter noise

d: Rejected due to inmber of solar cells

th between Tasmannvironmental impacs required i.e. emer

rm safety and to co


Page 1

Rik

ih

Cons

eque

nce

ed as far as

le and

at sea

ement

higher noise

e unduly

nadequate required to

1 /

Min

or

nia and the ct to date rgency

omply with 1 /

Min

or

mary 008

7 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

3 /

Unl

ikel

y

Low

(ALA

RP)

3 /

Unl

ikel

y

Low

(ALA

RP)

PrOrW

A

N


Aspect

Risk

ID

R8

Non Routine Impact

N1


Hazard P

Physical presence of platform

•

•

ts

Loss of containment of lubricating oil or grease Loss of containment of ROV hydraulic fluid

•

•

Potential Impact

Reduction in availarea

Collision with the shipping or fishingnote not a routine

Discharge of oil inmarine environmeimpact on marine

Disturbance of maenvironment fromdiving activities dassessed to be mi

Rev No: 0

Risk wcontrplace

Cons

eque

nce

lable fishing

platform by g vessel – e event

1 /

Min

or

nto the ent and species. arine

m ROV and iscussed and nor. 1

/ M

inor

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

Cert

ain

Med

ium

Platf Navig Fishe

acce Comm Enga

fishethem

Fishegenu

4 /

Poss

ible

Med

ium

Platf10.1)deck

Spill Train

covewast

Liftinvesse

Contmain

Issue

trol Measures and o

form, pipeline and 5gation aids on platferies consultation shss to grounds munication to relevgement of a Fisher

eries experience in tm with co-ordinates eries Management Pine/validated losse

form / process desig) and maintenance

k, liquid inventories kits installed at allning and competencrs and bungs in usee oil transfer ng management /coel ractor Management

ntenance, pre-dive

BassGas Offsh

Date: 6/09/2012

other consideratio

500 m safety zone mform hows minimal direc

vant fishing operatoies Liaisons Officer the region to consu of facilities Plan with formal gries incurred

gn (CCPS-10.2), Ass management syste bunded. l machinery points ocy of personnel (CC

e during operations

ontrols while transf

t system – managem/ ROV checks


ons

marked on navigati

ct impact on fisherm

ors in the location with practical and

ult with fishermen a

ievance procedure

set integrity programs (ORACLE) – solid

on the main deck CPS-13) including uswith an higher risk

ferring to and from

ment of – hoses, pre


Page 1

Rik

ih

Cons

eque

nce

on charts

men or

academic and provide

for

1 /

Min

or

m (CCPS-d / plated

se of drain of spill i.e.

the supply

eventative

1 /

Min

or

mary 008

8 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

2 /

Hig

hly

Unl

ikel

y

Low

(ALA

RP)

1 /

Rem

ote

Low

(ALA

RP)

PrOrW

A


Aspect

Risk

ID

N2


Hazard P

Loss of containment of Chemicals

•

Potential Impact

Discharge of chemthe marine enviroimpact on marine

Rev No: 0

Risk wcontrplace

Cons

eque

nce

micals into onment and species.

1 /

Min

or

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

4 /

Poss

ible

Med

ium

Chem Platf

self c Asset

systeinven

Yolla Train

work Oper Det N

Addit

Provirejecdoes

Issue

trol Measures and o

micals are subject tform / process desigcontained, bunded t integrity program ems (ORACLE) – solidntories bunded, usea has a limited invening and competenckover contractors (crating and maintenaNorske Veritas DNV

tional controls conside portable bunds cted due to availab not reduce the risk

BassGas Offsh

Date: 6/09/2012

other consideratio

to detailed hazardogn; permanently sto skids. (CCPS-10.1) and md / plated deck, tae of temporary bundntory of chemicals cy of personnel (CCcontractor managemance procedures (C rated containers (C

sidered but rejecte for safe storage of le space on platfork for miscible chem


ons

us materials risk asored chemicals are

maintenance manageanks and vessels, liqds. CPS-13) - Use of comment process) CPS-09) CCPS-09)

d: chemical drums. Tm and hold-up volu

micals.


Page 1

Rik

ih

Cons

eque

nce

ssessment. stored in

ement quid

mpetent

This was umes. It also

1 /

Min

or

mary 008

9 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

2 /

Hig

hly

Unl

ikel

y

Low

(ALA

RP)

PrOrW

A


Aspect

Risk

ID

N3

N4

N5


Hazard P

Accidental disposal of waste

•

Introduction and Transmission of Invasive Species

•

Disposal of workover fluids

•

Potential Impact

Discharge of wastinto the marine eand impact on maspecies.

Displacement of especies with detrieffects

Discharge of chemthe marine enviroimpact on marine

Rev No: 0

Risk wcontrplace

Cons

eque

nce

e materials nvironment arine

3 /

Seri

ous

existing imental

3 /

Seri

ous

2 /

Hig

hly

micals into onment and species.

3 /

Seri

ous

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

Cert

ain

Seve

re

Trainwith

Equipmanaand l

Addit

Elimireserequipoff owast

2 /

Hig

hly

Unl

ikel

y

Med

ium

Vesse Vesse

log o Supp

3/ U

nlik

ely

Med

ium

Chem Fluid

to enhead

Traincomp

Issue

trol Measures and o

ning and competenc Waste Managemenpment design, Asseagement systems (Olifting equipment.

tional controls consination of mercury rvoir fluid. Risk of rpment / structures f paint, scaffoldinge el to comply with Aels to comply with

of ballast water discply vessel selection

micals are subject tds to be pumped annsure optimal dilutiders and temporary ning and competencpetent workover co

BassGas Offsh

Date: 6/09/2012

other consideratio

cy of personnel (CCt Procedures and pt integrity program

ORACLE) – particula

sidered but rejecteand lead not possibremoval of the exist considered too hig

g, work over water

AQIS requirements. Ballast managemencharges. process

to detailed hazardod discharged througon. Use will be mad hose/pump as requcy of personnel (CContractors (contract


ons

CPS-13) - Use of androcesses.

m (CCPS-10.5) and marly as it relates to t

d: ble. Mercury is presting lead-based paih. This would requplus disposal of rem

nt procedures and m

us materials risk asgh existing wastewade of the existing duired.

CPS-13) – including utor management pro


Page 2

Rik

ih

Cons

eque

nce

d compliance

maintenance the crane

sent in the int on uire scrape maining

3 /

Seri

ous

maintain a

2 /

Mod

erat

e

2/ H

ighl

y

ssessment. ater caisson drain

use of ocess).

3 /

Seri

ous

mary 008

20 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

Resi

dual

Ris

k

3. /

Unl

ikel

y

Med

ium

(ALA

RP)

2/ H

ighl

y U

nlik

ely

Low

(ALA

RP)

1 /

Rem

ote

Low

(ALA

RP)

PrOrW

A

H


Aspect

Risk

ID

Hydrocarbon Events

H1

H2


Hazard P

s

Loss of containment of diesel whilst bunkering

•

Loss of containment of diesel – supply vessel

•

Potential Impact

Discharge of diesemarine environmeimpact on marine

Discharge of diesemarine environmeimpact on marine

Rev No: 0

Risk wcontrplace

Cons

eque

nce

el into the ent and species.

2 /

Mod

erat

e

6 /

Alm

ost

el into the ent and species.

3 /

Seri

ous

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

Cert

ain

Hig

h

Desig Asset

syste Train Bunk

limit

3 /

Unl

ikel

y

Med

ium

Majoeven

Vesseadve

Oil S

Issue

trol Measures and o

gn – hose equipped t integrity program em particularly as itning and competenckering procedures reed discharge of die

or vessel problem (it would lead to lossel operating proced

erse weather procedpill Contingency Pla

BassGas Offsh

Date: 6/09/2012

other consideratio

with dry break cou (CCPS-10.1) and Mt relates to hose macy of personnel (CCequire fully mannedesel is expected bef.e. vessel collision,s of one tank of die

dures and processesdure, design and maan.


ons

uplings. Maintenance manageanagement.

CPS-13). d operation therefofore it would be ide foundering) most c

esel. s including training,aintenance.


Page 2

Rik

ih

Cons

eque

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ement

ore only a entified.

1 /

Min

or

credible

, navigation,

3 /

Seri

ous

mary 008

21 of 33

Risk

wit

h co

ntro

ls

in p

lace

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lihoo

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dual

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k

3. /

Unl

ikel

y

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(ALA

RP)

1 /

Rem

ote

Low

(ALA

RP)

PrOrW

A


Aspect

Risk

ID

H3

H4


Hazard P

Loss of containment of hydrocarbons – Topsides event

•

Loss of containment of hydrocarbons – Blowout

•

Potential Impact

Discharge of gas tatmosphere and cinto the marine eand impact on maspecies.

Discharge of gas acondensate into tenvironment and marine species.

Rev No: 0

Risk wcontrplace

Cons

eque

nce

to the condensate nvironment arine

2 /

Mod

erat

e

and he marine impact on

2 /

Mod

erat

e

with no rols in

Key Cont

Like

lihoo

d

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rent

Ris

k

6 /

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ost

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ain

Hig

h

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All crproce

Oil S Train

Addit

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5 /

Like

ly

Hig

h All cr

desigemer

Oil S Train

Issue

trol Measures and o

t limited to platforensate and 70m3 of

cturally the surface designed to prevent result is effectivelyritical controls i.e. ess shutdowns, emepill Contingency Planing and competenc

tional controls consider additional equorted due to platfoifications would be ritical controls as idgn, asset integrity, rgency shutdowns ppill Contingency Planing and competenc

BassGas Offsh

Date: 6/09/2012

other consideratio

rm topsides inventof gas), if event esca controlled sub surft continued dischary a blowout as per H design, asset integergency shutdowns an. cy of personnel ope

sidered but rejecteuipment for oil in worm space constrain significant. dentified in the saf operating procedurparticularly SC-SSSVan. cy of personnel ope


ons

ory (approximately alates and the platfface safety valves (ge of hydrocarbonsH4, see below.

grity, operating proc including SC-SSSVs

erating platform (CC

d: ater monitoring. T

nts and process equ

ety case and WOMPres, process shutdowVs, etc.

erating platform (CC


Page 2

Rik

ih

Cons

eque

nce

10m3 of form fails (SC-SSSV) s. If they

cedures, , etc.

CPS-13).

This was not ipment

2 /

Mod

erat

e

P, i.e. wns,

CPS-13). 4 /

Mod

erat

e

1 /

Hig

hly

mary 008

22 of 33

Risk

wit

h co

ntro

ls

in p

lace

Like

lihoo

d

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Ris

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3 /

Unl

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(A

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)

1 /

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hly

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ium

(A

LARP

)

PrOrW

A


Aspect

Risk

ID

H5


Hazard P

Loss of containment of hydrocarbons – Pipeline event.

•

Potential Impact

Discharge of condthe marine enviroimpact on marine

Rev No: 0

Risk wcontrplace

Cons

eque

nce

ensate into onment and species.

3 /

Seri

ous

with no rols in

Key Cont

Like

lihoo

d

Inhe

rent

Ris

k

6 /

Alm

ost

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ain

Seve

re

FailuPipel

Majowoulconta

Desig All cr

proce Asset

syste Oil S

Addit

Instaon shrejec

Instaadditrisks

Issue

trol Measures and o

ure could occur closline contains approx

or pipeline failure red be shutdown andainment would stopgn, process control ritical controls i.e. ess shutdowns and t integrity program em. pill Contingency Pla

tional controls consall NRV at pipeline shore at Kilcunda to cted based on the rallation of concrete tional impact prote and costs of install

BassGas Offsh

Date: 6/09/2012

other consideratio

se to shore and henx 20 m3 of condensesulting in loss of p continued product

p. alarms and trips (C design, asset integemergency shutdow (CCPS-10.1) and M

an.

sidered but rejecteshore crossing and / reduce pipeline learisks and costs of in mattresses along p

ection. This was rejlation.


ons

ce result in shorelinate.

pipeline contents. Ption feeding the los

CCPS-02). grity, operating procwns, etc.

Maintenance manage

d: / or actuate existinak inventory. This stallation.

pipeline route to prjected due to based


Page 2

Rik

ih

Cons

eque

nce

ne impacts.

Platform ss of

cedures,

ement

ng first valve was

rovide d on the

4 /

Seri

ous

mary 008

23 of 33

Risk

wit

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ntro

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lace

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1 /

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(A

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)


5.

Origin’s commitmperform

Origin co

This com

Origin (a(HSEMS) communwith Aus

Origin’s and site energy e


Origin C

Health, Safement to miniance continu

ommits to: Elimin

to peo

Assist

Conduand co

mmitment is Integr

busine

Allocaeffect

Providareas.

Estableffect

Ensuriqualifcontro

Develreview

Ensuriinform

Measureport

Ensuriprinci

Ensuri

Taking

Takingand re

and its contr to minimise

nities in whicstralian/New

focus on imp level Healthefficiency, gr


Corporat

ety and Envirimise adversuously.

nate or manaople, damag

all employe

uct all activiommunity co

backed by Orating HSE messes.

ating clear litively the pr

ding systems.

lishing and ctively manag

ing that adefications, areols.

oping, implewed regularl

ing communimation;

uring, monitoting results t

ing that procples and req

ing that cont

g all necessa

g opportunitecycle mater

ractors) also e and managech the compaw Zealand Sta

proving envih, Safety andreenhouse ga

t.

e Enviro

ronment (HSse effects on

age hazards e to propert

ees to meet t

ties in recogonsideration

Origin’s HSE pmanagement

nes of accouinciples by w

s to identify,

communicatige incidents.

quate humane provided to

ementing andy as appropr

ication chan

oring and revto senior ma

cedures for tquirements.

tractors com

ary steps to m

ties to reducrials.

operates une the impactany operatesandard ISO 1

ronmental md Environmeas emissions

BassGas

Rev No: 0

nment P

SE) Policy pro the environ

and practicety or unaccep

their health,

gnition of shos.

policy whichinto the plan

untability to which Origin

classify, ass

ng documen

n resources,o manage, m

d maintaininriate.

nnels are ava

viewing HSE anagement, r

the purchase

mply with the

minimise the

ce waste and

der the Origts on employs. The Origi4001:2004 E

management nt plans that, waste, wat

s Offshore

0

Policy

ovides a pubnment and to

es that couldptable impac

, safety and

ort and long

h requires: nning and op

implement Energy oper

sess, control

ted processe

with appropmaintain and

ng systems fo

ailable to pro

performancrelevant auth

e or supply o

e HSE standa

e impact of a

greenhouse

gin Corporateyees, contracn HSEMS has

Environmenta

practices art outline speter and, whe

EnvironmeOEUP-T5

Issue Date: 6/09/

blic statemeno improve en

d cause accidcts on the en

environment

term econom

peration of a

HSE policy arates.

l and review

es to control

priate trainin implement

or work proc

ovide staff w

e, maintainihorities and

of goods or se

ards and requ

an environm

e gas emissio

e HSE Managctors, the ens been develoal Manageme

re supportedecific strategere applicabl

ent Plan Su5100-PLN-E

/2012

nt of the comnvironmental

dent, injury nvironment.

t obligations

mic, environ

all Origin Ene

nd communi

HSE risks in

l risks and

ng and HSE systems

edures that

with relevant

ng records a other stakeh

ervices addr

uirements.

ental event;

ons, conserve

ement Systenvironment aoped in accoent Systems.

d by businessgies to manale, land with

ummary ENV-008

of 33

mpany’s l

or illness

s; and

nmental

ergy’s

icate

all

s and

will be

t HSE

and holders.

ess HSE

; and

e energy

em and the ordance .

s unit ge

hin a


specific Origin Co

The Origidentifiefocus oninvolvingwill be r


locality and orporate HSE

gin Corporateed and reporn improving mg regulatory reviewed and


context. ThEMS.

e HSEMS ensted to manamanagement non-compliad increased a

t.

hey are howe

ures that enagement andt practices toance are repas required.

BassGas

Rev No: 0

ever, implem

vironmental regulators ao reduce env

ported the le

s Offshore

0

mented with

l incidents anas required avironmental evel of routin

EnvironmeOEUP-T5

Issue Date: 6/09/

in the overa

nd non-compand that the impacts. Wne auditing o


/2012

all framework

pliances are re is a const

Where incidenof HSE proced

ummary ENV-008

of 33

k of the

ant nts dures


6.

6.1 Consultaemploye2011. Tpreviousplatforma multi-d(Superviand Suppoutcome

6.2 Through respect been incEnvironm

6.3 Origin haa corporestablishregulatostakeholThe comoperatioauthoritfiled on

Origin hahave an conducteand agen

A fact shcontainefeedbac

The low from shiYolla plasubstantconsultaThe sumProject

. The su


Environ

Employeation with emee participathe risk assessly identifiedm and offshordisciplinary tsors, Techniply and Logises from the e

Consulta the developto the conte

corporated inment Plan.

Ongoing as developedrate citizen. hed to respoors. The meelders and act

mmunity conson of the Basies and the l the Origin D

as also ident interest in ted by Originncies, Non G

heet was proed contact dek to Origin.

level of compping lanes,atform is an tive issues (cation period.mmary details

Fact Sheet a

ummary tabl a sum

Originstakeh

Origin


nment Pla

e Consultamployees in tion in the Enssments wered and for idere pipeline (team includicians and Hestics. The Imenvironment

ation with pment and inent of the donto this revis

Stakeholdd systems to A communitnd to externetings, held t as a consulsultation messGas projectlocal commu

Document Ma

tified and cothe ongoing o’s Communit

Government O

oduced and details for int

mment receiv the very low

existing struclaims or obj s of consultaare included

e includes thmmary of the

n’s assessmeholder; and

n’s response

t.

an Consu

ation the developmnvironmentae a workshop

entifying newas a result oing represenealth and Samplementatital risk asses

the Regulnitial assessmocument. Fesion as have

der Consul regularly asty Environmenal feedbackon a quarterltation forumetings ensurt are manageunity. Meetianagement Sy

onsulted withoperations oty Relations Organisation

distributed toterested stak

ved was genew level of coucture with aections) hav

ation followin in Table 6-1

he following stakeholder

nt of the me

to the stake

BassGas

Rev No: 0

ultation

ment of thisal Risk Assessp-based app

w risks associof becoming ntatives fromfety Represeion Strategy sment.

lator ment of this eedback rece lessons lear

ltation ssess the genental Liaisonk and engagerly basis, arem to communre that HSE med to the satngs are minuystem (DMS)

h a range of of the Yolla p Advisor and ns, industry p

o provide ankeholders to

erally attribommercial fia known locave been iden

ng the distri.

: r query (obje

erit of the qu

eholders.

s Offshore

0

revised EP csment conduroach for reviated with tha manned fa

m BassGas Maentatives), E for this EP w

EP, NOPSEMeived from thrnt on the Ot

neral commu Group (ELG

e with the gee open to thenicate Originmanagementtisfaction of uted, issued ).

stakeholdersplatform. Th included Stapeak bodies

n overview of request furt

uted to the shing activitation and saftified by sta

bution BassG

ection or cla

uery (claims

EnvironmeOEUP-T5

Issue Date: 6/09/

can be democted in Marcviewing the he operationacility). Theanagement, OEngineering, was develope

A has been che regulatorytway Drilling

unity’s expec) meeting fo

eneral comme general con’s goals andt issues arisin the relevan to all meeti

s who may bhese consultaate and Fedeand groups.

f the Yolla Mther informa

location of tty affected, afety exclusioakeholders du

Gas Offshore

im);

or objection


/2012

onstrated thrch 2009 and Arisk events of the Yolla

e workshops iOperations Maintenanceed based on

consulted wiy authorities Campaign

ctations of Oorum has beeunity and kemmunity and HSE performng from the t regulatory ng participa

be affected bations were eral departm

MLE Project. ation or to pr

the platformand the fact

on zone. No uring the

e Facilities Yo

n) raised by t

ummary ENV-008

of 33

rough August

a involved

e, HSE the

ith s has

Origin as en ey d key mance.

nts and

by, or

ments

This rovide

away t the

olla MLE

the


Stakehpotentia

the

AustraliaSafety A(AMSA)

Lead Ageof searchor oil spiin CommWaters.

AustraliaHydrogr(AHO).

Commonauthorityfor noticof marin


Table 6-

holder and al interest in

e project

an Marine Authority

ency in case h and rescueill response

monwealth

an raphic Office

nwealth y responsiblece to shippinne activities.


1: Summary

n Stake

qu

e

No vesseconcernsexpresseplatformlocated existing zone.

OSCP - Insent relesections but advicopy warequired

Provideddetailedthe full Oa combinobservatrecomme

AMSA reqformal awith Orig

e

e ng

Will extefor noticmariners

t.

y of BassGas

eholder uery

el safety s ed as the m is in an exclusion

nitially evant of OSCP sed a full s

d.

d a review of OSCP with nation of tions and endations.

quested a agreement gin.

end period ce to s.

BassGas

Rev No: 0

offshore fa

Origiassessm

Stakeholde

Valid

Valid

Valid

Valid

s Offshore

0

cilities stake

n’s ent of er query

F

Aawdr

Qreoaca

Dpmt

N

EnvironmeOEUP-T5

Issue Date: 6/09/

eholder con

OriginSt

Full copy of O

All recommeaddressed whwere assessedetermined irequired.

Queried if anrequired per exploration, one betweenadequate. AMconsidering tapproach.

Discussion replatform andmovements. timeline and

No further re


/2012

nsultation

’s response akeholder

OSCP was pr

endations wehile observa

ed for criticaif modificati

n agreementr OSCP (opera drilling, etcn AMSA and OMSA are currthe most app

egarding locad increased v Confirmed p drilling pha

esponse requ

ummary ENV-008

of 33

to

rovided.

ere tions

ality and on were

is ation,

c) or if Origin is rently propriate

ation of vessel project ase.

uired.


Stakehpotentia

the

DepartmDefence

Naval vemovemecharting

Border PControl

Rescue CCentre (AustraliaSafety A(AMSA)

Lead ageoffshorerescue.

AustraliaOil Spill (AMOSC)

Oil spill organisa2/Tier 3



e project

ment of e

essel ents and g.

Protection Command

Coordinatio(RCC) – an Marine

Authority

ency in e search and

an Marine Centre )

response ation for Tier spills


n Stake

qu

Satisfiedinformatprovided


n


r

Providedfor stateagencies(Vic/Tas

RevieweOSCP wicommenincludingformattiAMOSC capabilitwildlife

t.

eholder uery

d with tion d.

d with tion d.

d with tion d.

d contacts e combat s s).

ed full th minor

nts g ng errors,

ties and response

BassGas

Rev No: 0

Origiassessm

Stakeholde

N/A

N/A

N/A

Valid

Valid

s Offshore

0


Dpmt

N

Dpmt

N

Dpmt

N

U

Ibf

EnvironmeOEUP-T5

Issue Date: 6/09/

OriginSt


No further re


No further re


No further re

Updated con

tems raised been addressfor further re


/2012



esponse requ


esponse requ


esponse requ

ntact register

by AMOSC hsed and re-seview.

ummary ENV-008

of 33

to


uired.


uired.


uired.

r.

ave ubmitted


Stakehpotentia

the

Vic DOT

Combat case of oVictorianWaters

Tas. EPA

Combat case of oTasmaniWaters

Tas DPI

Resourc

Resourcemanagemregulato

Vic DPI

Resourcemanagemindustry developmregulato

SoutherFishery.

Industry



e project

T

Agency in oil spill in n State

A

Agency in oil spill in an State

– Mineral

ces Tasmania

e ment and or.

e ment and ment

or.

rn Squid Jig .

peak body


n Stake

qu

Advised equipmerequireddemonstoperatorcombat are resorespond

No furthcommunreceived

a

Tas no loregulatoresponsiAppreciaadvised.

Sought clarificaproject athat relaVictorianpredictepaths, ocwater quincreaseactivity ports, otidentifie

Vic DPI ithey hadfurther c

Locationfished.

t.

eholder uery

the ent list is d to trate the r and agency urced to

er nication d.

onger has ory bility. ate being

tion of activity ates to n waters, ed oil spill cean uality, ed vessel in Vic ther risks ed.

ndicated d no concerns.

n rarely

BassGas

Rev No: 0

Origiassessm

Stakeholde

Valid

N/A

N/A

Valid

N/A

s Offshore

0


Pqr

Er

P

Ars

PrpdiE

N

N

EnvironmeOEUP-T5

Issue Date: 6/09/

OriginSt

Provided extquestioned wrequired from

Equipment lirelevant area

Provided full

Attempted torepresentativstatus of com

Provided detresponses to physical impdischarges anmpacts as dEnvironment

No further re

No further re


/2012


tracts of OSCwhat informam Vic DOT.

ist was provia

l OSCP for co

o contact Tave to determ

mments.

tails of Origin hydrocarbonacts, waste nd non-routietailed in th

tal Plan.

esponse requ

esponse requ

ummary ENV-008

of 33

to

CP and ation is

ded for

omment.

as EPA mine

n n events,

ne he

uired.

uired.


Stakehpotentia

the

Bass StrZone ScaManagemAuthorit

Industry

TasmaniLobster Associat

Industry

TasmaniEast TraIndustryAssociat

Industry

TasmaniIndustryCrustaceFisherieCommitt

Industry

Scallop AssociatTasmani

Industry

CommonFisherieAssociat

Industry

SeafoodVictoria

Industry

BassGas Referen

Local corepresenprovide feedbacoperatioprojects



e project

ait Central allop Fisherment ty

peak body.

ian Rock Fishermanstion

peak body

ian South awl Fishing y tion.

peak body.

ian Fishing y Council & ean es Advisory tee.

peak body.

Fisherman’stion of ia.

peak body.

nwealth es tion.

y peak body

Industries .

peak body.

Communitynce Group

ommunity ntatives advice and k on

ons and s.


n Stake

qu

ry

Locationfished. Pimpacts beds.

s Locationfished.

No resporeceived

No resporeceived

s

No resporeceived

.

No resporeceived

Confirmelocation fished.

y General and inteYolla MLconstrucenvironmspecific

t.

eholder uery

n rarely Possible on scallop

n rarely

onse d

onse d

onse d

onse d

ed rarely

questions rest on

LE Project ction – no ment concerns.

BassGas

Rev No: 0

Origiassessm

Stakeholde

Valid

N/A

N/A

N/A

N/A

N/A

N/A

N/A

s Offshore

0


Cb

N

N

N

N

N

N

PtCm

EnvironmeOEUP-T5

Issue Date: 6/09/

OriginSt

Confirmed nobeds.

No further re

No further re

No further re

No further re

No further re

No further re

Project inforto be provideCommunity Rmeeting.


/2012


o effect on s

esponse requ

esponse requ

esponse requ

esponse requ

esponse requ

esponse requ

rmation and ed at each Reference G

ummary ENV-008

of 33

to

scallop

uired.

uired.

uired.

uired.

uired.

uired.

updates

roup


Stakehpotentia

the

TT Line

ShippingoperatinStrait.

Toll ANLStraight

ShippingoperatinStrait.

TasmaniCorpora

(TasPor

TasmanioperatorURS

Environmservices

RPS

Environmservices



e project

g company ng in Bass

L Bass Shipping.

g company ng in Bass

ian Ports ation.

rts)

an ports r.

mental

mental


n Stake

qu

Platformnot closeshippingExisting zone.

Platformnot closeshippingExisting zone.

No resporeceived

ConfirmeURS can environmsamplingtesting s

ConfirmeRPS can environmservices.

t.

eholder uery

m location e to lanes. exclusion

m location e to lanes. exclusion

onse d

ed that support mental g and services.

ed that support mental .

BassGas

Rev No: 0

Origiassessm

Stakeholde

N/A

N/A

N/A

N/A

N/A

s Offshore

0


N

N

N

Pceas

Fp

PceU

Fp

EnvironmeOEUP-T5

Issue Date: 6/09/

OriginSt

No further re

No further re

No further re

Provided extcomment as establishing agreement foservices.

Formal servicplace with U

Provided extcomment as establishing URS support

Formal servicplace with R


/2012


esponse requ

esponse requ

esponse requ

tracts of OSC part of requa formal seror URS suppo

ce agreemenRS.

tracts of OSC part of requa formal con services.

ce agreemenPS.

ummary ENV-008

of 33

to

uired.

uired.

uired.

CP for uest for rvice ort

nt in

CP for uest for ntract for

nt in


Stakehpotentia

the

Australia

Provide support

Bristow

Provide support



e project

an Jet

aerial services

helicopter services


n Stake

qu

ReceivedconfirmaAustralacan suppsurvey

Receivedconfirmacontractfor emerof helicoBristow capabilitconduct survey

t.

eholder uery

d ation sian Jet port aerial

d ation that t allows rgency use opters and have ty to aerial

BassGas

Rev No: 0

Origiassessm

Stakeholde

N/A

N/A

s Offshore

0


PceA

Fp

PceB

Fp

EnvironmeOEUP-T5

Issue Date: 6/09/

OriginSt

Provided extcomment as establishing Australian Je

Formal servicplace with A

Provided extcomment as establishing Bristow supp

Formal servicplace with B


/2012


tracts of OSC part of requa formal con

et support se

ce agreemenustralian Jet

tracts of OSC part of requa formal con

port services.

ce agreemenristow.

ummary ENV-008

of 33

to

CP for uest for ntract for ervices.

nt in t.

CP for uest for ntract for .

nt in


7.

The Orig


Environ

gin environm

Mr Truc NgAustralian Phone: 03-Mobile: 042Email: truc


nment Pla

mental contac

guyen Business Uni8665 7115 24 050 571 c.nguyen@or

t.

an Liaiso

ct person for

it Environme

riginenergy.c

BassGas

Rev No: 0

ons

r the BassGa

ental Special

com.au

s Offshore

0

s Offshore F

ist

EnvironmeOEUP-T5

Issue Date: 6/09/

Facilities is:


/2012

ummary ENV-008

of 33

bassgas offshore environment plan summary - operations ... · tes to its bu ent (hse) p performance...

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