VIICTORIANCTORIAN SUUPPLEMPPLEMEENTNT 22005005

Victoria’s petroleum boom continues C ONTENTS • C ONTENTS • C ONTENTS M INISTER ’ S S TATEMENT • M INISTER ’ S S TATEMENT PO Box 24Innaloo CityWA 6918Australia • Ph: +6189446 3039 •Fax:+618 9244 3714• Email:[email protected] This publication wasproduced byRESolutionsResource &Energy Services PtyLtdonbehalf ofPESA VICTORIAN eight wellsare proposed fordrillingoverthe exploration drillinghitsa20-yearhigh.Forty- two years.Thisisexpectedtocontinueas with almost$350millionspentinthelast exploration spendingreached record levels, V exploration forseveralreasons -itspotential Victoria isaprimelocationforpetroleum exceeds $4billion-arecord fortheState. committed downstream projects investment location forexplorationandinvestment.The companies haveendorsedVictoria asaprime National andinternationalpetroleum Gippsland Basin’s heydaysinthe1980s. level ofdrillinghasnotbeenseensincethe are scheduledfordrillingin2004/05.This least 17more explorationandappraisalwells have beendrilledsinceJuly2004,andat next three years.Twelve explorationwells osrcinUdra nTeOwy Gas Project Construction Underway On TheOtway On Activities,Off Bass StraitOilCompany Ltd–Update Apache ComesTo TheGippslandBasin GippslandBasinOil&GasFields Extracting MaximumValue FromTheMaturing Otway BasinMayYield NewGazettalBlocks Forthcoming RelinquishmentsInTheOnshore Basin StudiesUpdate Otway BasinAcreageFlaggedFor2006 Victorian Department OfPrimaryIndustries Minerals AndPetroleumDivision- By Woodside EnergyLimited By PhilipJ.Burnett&DrKlausW. Mueller By IanReid By StephenKeenihan Dr Tom Bernecker&JimDriscoll By HywelThomas By MaherMegallaa and developmenthistory. Petroleum period initspetroleum exploration ictoria isexperiencinganexciting shore GippslandBasin SUPPLEMENT2005 from thisintervalwhichhasbeenconsidered it isthefirsttimeoilhasbeenextracted early toassessthefullpotentialofthisfind, from drillingWombat-3. Whileitisstilltoo it hasrecovered oilfrom theStrzeleckiGroup Onshore, LakesOilrecently announcedthat oil andgasfrom drillingWest Whiptail-1. Moby-1 andEsso/BHPBillitondiscovered Bass StraitOildiscovered gasfrom drilling evaluation oftheLongtom-2gasdiscovery. Basin. Offshore, Apachehasannouncedits been made,particularlyintheGippsland Some significantandexitingdiscoverieshave exploration in2006and2007. is scheduledtobecomeavailablefor soon. Asignificantnumberofvacantareas in acreage availability, however, willchange available forrelease in2005.Thisshortage being underpermitsandnoareas are led toalmostall-existingprospective areas The recent highdemandsforacreage has will beoperational. plant (Woodside’s OtwayGasplantatIona) near PortCampbell)andbymid2006asixth at LangandBHPBilliton’s Minervaplant Baleen plantatOrbost,Origin’s BassGasplant operating plants(byaddingSantos’Patricia (near PortCampbell).There are currently five (near Sale)andSantos’Heytesburyplant Esso’s gas-processing plantsatLongford then, theStaterelied mostlyonsuppliesfrom drastically duringthelastfiveyears.Priorto Victoria’s gassupplysecurityhaschanged Tasmanian gasmarkets. with NewSouthWales’, SouthAustralianand gas plantsandindustries,itsconnection for discoveries,itsreputation asahubfor 10 9 8 7 5 4 2 1 Petroleum Titles VIMP PetroleumReports Listings Existing PetroleumData OnCds&Dvd Petroleum InformationGroupUpdate Mapping Application-GeoVic Minerals AndPetroleum’s OnlineWeb During 2003/2004 Petroleum ResourcesAndOperations Of TheOtwayBasin Is UnlockingThePotential Essential PetroleumResourcesLimited And Development,Off Of FastTrack Exploration,Appraisal The CasinoTimeline: AnExample By BobHarms By MaherMegallaaandRobLane By DrKouroshMehin By EssentialPetroleumResourcesLimited By SantosLimited

that contributedtoVictoria’s PESANews and extendsitsthankstothecompanies importance oftheoilandgasindustry, The Victorian Governmentrecognises the the petroleum industry. gas markets,Victoria istheplacetobefor and reliable connectionstothree interstate activities. Withlarge ready marketsdeveloped from theseexplorationanddevelopment regional communitieshavedirectly benefited production andmanufacturingsectors.Our highly competitivepositionintheprimary This willhelpVictoria tomaintainits energy securityanddiversityofsupply. New gasdiscoveriesleadtoincreased interested biddersforthe2006release. also preparing prospectivity packagesfor the DepartmentofPrimaryIndustriesare Minerals andPetroleum. Geoscientistswithin data through theVictorian Initiativefor class geophysicalandgeologicalexploration stimulating explorationbyproviding world- potential. TheVictorian Governmentis indicate thatweare stilluncoveringVictoria’s good newsforthepetroleum industryand These recent oilandgasdiscoveriesare until now. a non-prospective ‘economicbasement’, and Resources Minister forEnergyIndustries Hon TheoTheophanous and intheensuingmonths. a helpfulreference attheAPPEAConference and potentialfuture companieswillfindit supplement. Ihopethatcurrent explorers shore Otway, Victoria om.au 20 19 18 17 16 15 13 11

VICTORIAN SUPPLEMENT

Richard Kathy Phil Chris Aldous Hill Roberts Hamilton

Executive Director Director Director GeoScience Minerals Minerals Victoria and Director and Branch Petroleum Business Petroleum (GSV) Regulation Development Division Branch & Technology (M & P) (MPR) Branch (BDT)

Ph: +61 3 9658 4411 Ph +61 3 9658 4562 Ph +61 3 9658 4457 Ph: +61 3 9658 4401

Fax: +61 3 9658 4466 Fax: +61 3 9658 4555 Fax: +61 3 9658 4499 Fax: +61 3 9658 4499 NDUSTRIES E-mail: [email protected]. E-mail: [email protected] E-mail: [email protected]. E-mail: [email protected]. I gov.au gov.au gov.au Minerals and Petroleum (M&P) is Responsible for the delivery of Responsible for establishment The Business Development & a division of the Department of regional, geoscience information of technical aspects of licence Technology Branch facilitates Primary Industries. It is responsible essential for project generation and conditions and approvals of drilling petroleum exploration projects for the administration of minerals, servicing the exploration sectors. programs, pipelines, health, safety and research, development and RIMARY quarry and petroleum legislation Responsible for overviewing the and environment monitoring. Also implementation of technologies including transmission pipelines. petroleum acreage release & responsible for granting renewal related to minerals and petroleum. P The division is also responsible marketing, data management and and administration of licences and for promoting minerals and reservoir engineering activities. fees. OF

petroleum exploration and extraction activities. The division was organised early this year and was relocated at the beginning of last July to a new headquarters at 1 Spring Street, Melbourne (the ‘old Shell House’). PETROLEUM MANAGERS

The geoscience and information Hywel Thomas (GSV) advice in respect of drilling programs and tenement functions of the Geological EPARTMENT applications. Survey of Victoria and Petroleum Manager Energy GeoScience Group

Development Branches have D Ph: +61 3 9658 4538 Horacio Haag merged to form GeoScience Victoria. The facilitation functions Fax: +61 3 9658 4555 Manager Petroleum Operations, Safety & become part of a new branch E-mail: [email protected] Environment (MPR) called Business Development and Ph: +61 3 9658 4415 Technology (BDT). The newly created Energy Geoscience Group, a merger of the former Basin Studies and Petroleum Fax: +61 3 9658 4499 Information groups, is responsible for data provision, E-mail: [email protected] ICTORIAN data enhancement and geotechnical support. It GEOSCIENCE VICTORIA provides geoscientifc expertise on issues related Responsible for acceptance of safety cases, (MINERALS AND PETROLEUM to petroleum, coal seam gas, geosequestration and environmental management plans, approvals of

DIVISION) geothermal energy. seismic, drilling, and workover operations. Approvals - V relating to pipeline construction and operations. DEPARTMENT OF PRIMARY Maher Megallaa INDUSTRIES Manager Acreage Release (GSV) George Buckland Level 16, 1 Spring Street Manager Minerals & Petroleum Tenements Ph: +61 3 9658 4541 GPO Box 4440 (MPR) IVISION Melbourne Victoria 3001 Fax: +61 3 9658 4555 Ph: +61 3 9658 4439

Australia. E-mail: [email protected] D Phone: 13 6186 Fax: +61 3 9658 4499 E-mail: [email protected] Handles the co-ordination of acreage release processes E-mail: [email protected] Minerals and Petroleum and the marketing of gazetted acreage, including the Website: http://www.dpi.vic. preparation of promotional data. Responsible for the management of petroleum tenements, applications for and granting of new gov.au/minpet/ Bob Harms petroleum permits and licences. Order of Products Manager Petroleum Information Team (GSV)

Geoff Collins ETROLEUM To order hard copy reports, Ph: +61 3 9658 4560 CD-ROMs and DVDs for reports Manager Petroleum Projects (BDT) Fax: +61 3 9658 4555 P and information packages Ph: +61 3 9658 4406 E-mail: [email protected] prepared by the division Fax: +61 3 9658 4499 geoscientists’ contact: In Victoria data is required to be submitted to the E-mail: geoff [email protected] AND government. Information Services manages this data Information Centre - and, after confi dentiality periods expire, handles Provides assistance in liaising with government Department of Primary distribution to clients. agencies for all projects including new transmission Industries pipelines. Kourosh Mehin Ground Level, 1 Spring Street Principal Petroleum Resources Advisor (MPR) Melbourne, Victoria 3000 INERALS FRONT COVER Australia. Ph: +61 3 9658 4416 Photograph courtesy of Esso Australia Pty Ltd M Ph: +61 3 96584440 Fax: +61 3 9658 4499 Fax: +61 3 96584760 E-mail: [email protected] ENSCO 102 arriving at Western Port Bay in December 2004 prior to commencing E-mail: Information.Centre@dpi. Petroleum Resources monitors the level of reserves Gippsland Basin drilling program for Esso-BHPB vic.gov.au within Victoria and provides geological/technical

PESA NEWS April/May 2005 1 VICTORIAN SUPPLEMENT

Otway Basin Acreage Flagged For 2006 By Maher Megallaa, Manager Acreage Release (GeoScience Victoria, M&P)

ictoria continues to enjoy a high be surrendered as indicated in Table 1. level of hydrocarbon exploration Both off shore permits, granted under the V and production activity. Following PSLA, approach their sixth anniversary and a strong demand for open acreage, are listed for 50% relinquishment upon exploration permits now cover the known renewal. prospective areas in Victoria’s hydrocarbon Maher Megallaa provinces. Several current permits are due Location and permit history to be surrendered or partially relinquished and scheduled to be released in 2006. The offshore permits VIC/P43 and and became production licences (Fig. 2). VIC/P44, currently operated by Woodside The same is true for the commercial gas This year, four onshore permits in the Otway and Santos (see Table 1), are in close fi elds at Geographe and Casino in the Basin are due to be surrendered under the proximity to proven commercial gas and off shore. They were originally discovered requirements of the Victorian Petroleum Act condensate fi elds in the Port Campbell in VIC/P43 and VIC/P44 and are now located 1998 (1998 Act). In addition, 50% of two Embayment and in the Shipwreck Trough. in production licence areas VIC/L23 and off shore permits are due to be relinquished Onshore, in 2001, Santos recorded a 100% VIC/L24, respectively. on renewal under the requirements of the drilling success rate after detailed 3D Commonwealth Petroleum (Submerged seismic mapping in Permits PEP153 and Acreage release and promotion Lands) Act 1967 (PSLA). The onshore permits PEP154 and discovered small gas fi elds at PEP152, PEP153, PEP154 and PEP160 (Fig. 1) Seamer-1, McIntee-1, Croft-1, Lavers-1, GeoScience Victoria (GSV) of the Department were granted under the Petroleum Act 1958, Naylor-1 and Naylor South-1. A further strong of Primary Industries (DPI) continually which was repealed by the 1998 Act. Under gas show was encountered in Naringal-1, while aims to facilitate petroleum investment in

the Transitional Provisions contained in Buttress-1 yielded CO2. These discovered the State through acreage release and by the 1998 Act, these permits are due to fi elds were excised from the two permits providing new investment opportunities for the energy industry. Following the

ELEASE submission of geotechnical data that were acquired by the permit holders, normally

R 142°E Due to be surrendered in 2005 within six months after the permit expiry Due to be 50% relinquished on renewal in 2005 date or relinquishment, the vacant areas’ exploration potential will be reviewed prior to being gazetted for bidding at the next CREAGE PEP160 national 2006 acreage release round. A

Northern Territory Hamilton Queensland Western The Energy Geoscience Group in GSV Australia South Australia New South Wales (see article page 4) routinely performs Victoria PEP151 Tasmania hydrocarbon prospectivity assessments of vacant acreage and has published these 38°S PEP150 38°S in DPI’s VIMP Report series (page 19). PEP159 VIC/P41(v) With respect to the proposed Otway Cobden PEP152 (b) PEP164 Basin gazettal, it is planned to review the Portland PEP154(a) available data and provide an update on VIC/P46 VIC/P37(v) PEP153 the petroleum geology of the region. Some of the results will be shown in digital form VIC/P44 on GSV’s new online mapping tool “GeoVic” VIC/P51 VIC/ L22 (see article on page 17). VIC/P38v) VIC/P61 In 2006, the new acreage will be promoted VIC/ VIC/P50 RL7 at international conferences such as NAPE Casino VIC/P43 VIC/ and AAPG, and nationally at APPEA, ASEG L23 and especially at WABS IV, which next year VIC/P52 will coincide with the AAPG International Geographe Conference in Perth. Further promotional activities include participation in direct 0 50 company visits, as part of Geoscience

km Australia’s annual international road show 142°E and domestically, as a marketing campaign

Figure 1. Location of Otway Basin onshore permits due to be surrendered and off shore permits listed for 50% relinquishment in 2005.

2 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

that specifi cally targets explorers who PEP154a 142° 50' E 143° E PEP153 ROWANS 1142° 50' E 143° E have expressed their interest in Victoria’s CALLISTA 1 WESTGATE 1A opportunities. These promotional eff orts PPL9 MELBA 1 0 5 are complemented by articles published LAVERS 1 km in industry and departmental magazines MCINTEE 1 PPL6 PRINCES 1 and brochures. 38° 30' S 38° 30' S PPL7 PPL4 PPL11 PRL1 TREGONY 1 FENTON CREEK 1 PPL5 Basic data availability BUTTRESS 1 PENRYN 2 BOGGY CREEK 1 PENRYN 1 NAYLOR 1 MYLOR 1 The Petroleum Information Services team NAYLOR STH 1 CROFT 1 PPL3 is the custodian of all geotechnical data VAUGHAN 1 BRAESIDE 1 PORT CAMPBELL 4 VOGEL 1 DUNBAR 1 BLACKWOOD 1 FLAXMANS 1 WILD DOG ROAD 1 PPL10NTH PAARATTE 1,4,5 NTH PAARATTE 2 PPL12 CURDIE 1 NTH PAARATTE 3 (see article on page 17) including a SEGY CURDIEVALE 1 PORT CAMPBELL 3 SKULL CREEK WEST 1 SEAMER 1 NAMGIB 1 DUNBAR EAST 1 PPL1 SKULL CREEK NTH 1 tape library (for some of the surveys). The SKULL CREEK 1 WALLABY CREEK 2 team has scanned most of the seismic WALLABY CREEK 1 IONA 6 IONA 1 IONA 2 sections, for onshore surveys, that were PPL1 PORT CAMPBELL 1 PPL2 GRUMBY 1 not available in SEGY format and carried PPL8LANGLEYLANGLEY 1 1 PPL1 out tape transcription for the older vintage PORT CAMPBELL 2 VIC/P37(v) digital surveys. 143° E Data processing contractors and explorers 142° 50' E 143° E who wish to reprocess seismic data are Figure 2. Location of gas fi elds and wells drilled in PEP153 and PEP154. encouraged to request UKOOA datasets, observer logs, survey notes and lists of Surrender/ Permit Permit Holders processed lines available in SEGY format. Relinquishment Date

Basic exploration data for the potential PEP152 Origin Energy* / Essential Petroleum / Lakes Oil 02/08/2005 gazettal blocks will be available in several formats, including: PEP153 Origin Energy * 27/08/2005 ELEASE

• GIS Data Package containing geological,

PEP154 Origin Energy * / Beach Petroleum 30/09/2005 R geophysical information and published basins papers. PEP160 TMOC Exploration* / Origin 13/11/2005

• Scanned open fi le well completion reports Woodside Energy * / Origin / VIC/P43 10/08/2005 CREAGE for exploration wells drilled in the Otway Benaris Intern. / CalEnergy Gas P/L and Gippsland basins. A Santos Ltd* / Mittwell Energy / Peedamullah 10/08/2005 VIC/P44 Petroleum • Scanned open file biostratigraphic reports. * Permit Operator Table 1. Onshore permits due to be surrendered and off shore permits listed for 50% • Scanned geochemistry reports, petroleum relinquishment upon renewal in the Otway Basin. geochemistry and source rock (eg Vitrinite Refl ectance, Source Rock Analyses etc) reports. Release conditions Contact

For further information, or data requests, Applicants will be requested to submit For further information contact Maher contact Bob Harms, Petroleum Information information on their fi nancial and technical Megallaa, Manager Acreage Release, Team Manager, on +61-3- 9658 4560 or by capabilities and full details of proposed on +61-3-9658 4541 or by e-mail: e-mail: [email protected]. exploration programs covering a period [email protected]. ◆ of fi ve (5) years for the onshore areas and six (6) years for off shore areas. It is also required to submit the key objectives of the fi rst three years committed work program.

PESA NEWS April/May 2005 3 VICTORIAN SUPPLEMENT

are being acquired this year by Apache Basin Studies Update and Bass Strait Oil and Gas. These surveys, By Hywel Thomas, Manager Energy Geoscience together with Esso/BHPP’s Northern Margin & Tuskfi sh surveys, will provide extensive The year 2004 was not only an exciting year commitments coverage of modern 3D seismic over much for petroleum exploration in Victoria but also of six wells and of the off shore Gippsland Basin. an eventful one for DPI’s geoscientists. two 3D seismic In the Otway Basin, two off shore areas from surveys are the 2004 Acreage Release were recently In February, the Petroleum Development set to further awarded to Origin (Vic/P41(v)) and Exoil Branch merged with the Geological Survey extend Victoria’s Hywel Thomas (Vic/P61). Three off shore wells, drilled by of Victoria to become GeoScience Victoria, high levels of Santos in 2004, encountered some gas an integrated geoscientifi c arm of the exploration activity (Fig.1). Department of Primary Industries. In July, shows whilst, onshore, two exploration GeoScience Victoria, together with the other A number of farmouts and other deals wells drilled by Essential Petroleum were EAM branches of the Department’s Minerals and occurred during the year which have unsuccessful. No new 3D surveys were Petroleum Division, relocated to new offi ces seen Woodside and OMV reducing their conducted in the Otway Basin although T at 1 Spring Street in Melbourne’s CBD. exposure to the Gippsland Basin and Apache 1100 km of off shore 2D seismic data was emerging as a signifi cant player. acquired (fi gure1). The State government’s commitment to implement new energy policies has Victoria continues to record a high level of In view of the successful acreage release TUDIES resulted in an expanded role for GeoScience drilling activity. Onshore Gippsland, Lakes programs of the last few years, most of the prospective areas of the Gippsland

S Victoria which has led to the creation of an Oil followed up their Wombat-1 discovery Energy Geoscience Group. This new group with appraisal wells on the Seaspray and Otway basins are now under licence. incorporates most of the function of the anticline at Wombat, North Seaspray From 2005 onwards, relinquishments will

ASIN old Petroleum Development Branch but its and Trifon. In the Narracan Trough, the occur, fi rst in the Otway Basin and later in scope has been broadened to include Coal, Megascolides-1 well, drilled by Karoon Gas, Gippsland. With this in mind, the Energy Coal-bed Methane, Geosequestration and also encountered indications of oil and Geoscience Group is turning its attention Geothermal Energy. gas in the Strzelecki Group. These results to the Otway Basin. 3D surveys have been

— B have highlighted a potential new petroleum loaded to our new Kingdom workstation During the year, geoscientists Tom Bernecker system within the Strzelecki Group. and regional reviews of the Penola Trough and Jim Driscoll promoted Victorian and the Port Campbell Embayment are exploration and production opportunities In the off shore Gippsland Basin, discoveries underway. at the NAPE, AAPG, and EABS conferences were made in the Emperor Subgroup at IVISION against a background of high oil prices and Longtom-2 and within the younger section Last year, the Energy Geoscience Group carried out several regional mapping

D exceptionally high exploration activity in of the Latrobe Group at Moby-1, Grayling- the State. Six new permits were awarded in 1 and West Whiptail-1. These wells were projects in the Gippsland Basin. Two the Gippsland Basin resulting in a 100% take located on the basis of 3D seismic resulting regional Latrobe Group structural maps up of the 2003 State and Commonwealth in a 100% exploration success rate. Although and a series of montages delineating the Acreage Release. First term exploration no 3D surveys were acquired in 2004, more palaeogeography for the Maastrichtian (Volador Formation), the Cretaceous/ Tertiary boundary (Kate Shale) and the 141°E 142°E 143°E 144°E 145°E 146°E 147°E 148°E 149°E ETROLEUM 34°S Production Licences 34°S Early Paleocene (Kingfi sh Formation) were 2004 EXPLORATION AND Retention Leases Gas Pipeline Mildura Oil & Other Pipeline APPRAISAL ACTIVITY Current Permits P Proposed Pipeline completed. A paper on this latter work will 2004 Acreage Release Closed March 31st 2005 Gas Field Permits/Licences be presented by Tom Bernecker at this year’s awarded/offered in 2004 Oil Field Northern Territory Marine National Park APPEA conference in Perth. Queensland Western Australia South Marine Sanctuary AND 35°S Australia New South 35°S Wales

Marine Special Management Area Aquaculture Zone Swan Hill Victoria Also during the year, an assessment of the Tasmania undiscovered or ‘yet to fi nd’ potential of

Cobram the Gippsland Basin was in progress using

36°S 36°S Echuca Wodonga a variety of deterministic and statistical Chiltern 0 50 100 Wangaratta MURRAY BASIN Shepparton Kilometres methods such as the USGS Petroleum INERALS Benalla Assessment method and Geoscience Horsham Bendigo Euroa

M Australia’s “Austplay” method. This study Carisbrook Seymour 37°S 37°S will eventually be followed by a similar Ararat GIPPSLAND BASIN Killarney EPRL -1 N. Seaspray-3 New Acreage Longtom-2 assessment of the Otway Basin. Ballarat Trifon-2 Awarded Findra -1 Melbourne Martha -1 Wombat -2 & 3 Moby-1 Hamilton West Whiptail-1 Orbost 390km 2D New Acreage Megascolides-1 Seismic Offered OTWAY BASIN Lara Maffra Finally, a project detailing the geology of the

38°S Geelong Sale 38°S Longford 200m Gippsland Basin oil and gas accumulations Cobden Portland 200m Grayling -1 1000m was commenced which will be used to 1000m 2000m

2000m Callister -1 V04-2 update the “Oil and Gas Resources of Victoria” 3000m (Closed March 31st 2005)

Minerva - First Production publication fi rst published in 1998. 39°S 3000m 4000m Victoria 39°S 718km 2D New Acreage Seismic Amrit -1 Tasmania Awarded

4000m Development New Acreage Licence Overall, 2004 has been an active year for Offered Granted the Energy Geoscience Group laying the 141°E 142°E 143°E 144°E 145°E 146°E 147°E 148°E 149°E 150°E groundwork for sustaining the current Figure 1. 2004 Exploration and Appraisal Activity. exploration boom well into the future. ◆

4 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

Forthcoming Relinquishments In The Onshore Otway Basin May Yield New Gazettal Blocks By Dr Tom Bernecker & Jim Driscoll

our onshore exploration permits in gas fi eld, the Port Campbell Embayment the Otway Basin are scheduled for has been the focus of sustained exploration F surrender in the latter half of 2005. interest. Technological advancement, Two off shore Commonwealth blocks are including the acquisition, processing and also scheduled for partial relinquishment at imaging of 3D-seismic data has resulted the same time. These blocks, located within in a suite of commercial discoveries within Tom Bernecker Jim Driscoll the Penola Trough and the Tyrendarra and a relatively confi ned part of the onshore

Port Campbell embayments, are likely to be Otway Basin. Gas is today produced from been intersected on several fault blocks at EAM gazetted for acreage release in 2006 (see the North Paaratte, Mylor, Fenton Creek, Skull drill depths between 1,500 and 2,700 m. T article on Acreage Release). Creek, Dunbar, Penryn and Wallaby Creek The formation is about 100-200 m thick fi elds. Additional reserves are located in the and rapidly thins near the embayment’s The newly formed Energy Geoscience Grumby, Langley, McIntee, Tregony, Lavers, margin. The formation can be subdivided Group within DPI (see article on Page 4) Naylor and Croft fi elds. The Boggy Creek on wireline logs into four distinct units TUDIES has embarked on a reconnaissance study to fi eld continues to deliver carbon dioxide. (Fig. 3) that belong to a coastal to shallow evaluate the hydrocarbon prospectivity of marine, partly deltaic depositional system, S these areas (Fig. 1). Recent developments in The detailed stratigraphy of the prospective generated during a transgressive-regressive the off shore provide the impetus to revisit Sherbrook Group was developed in this cycle. The best reservoir units, showing ASIN the petroleum geology of the onshore part part of the basin and the Waarre Formation excellent permeability values, commonly of this hydrocarbon province and publish an remains the main reservoir target, despite greater than 1D, are represented by update on the hydrocarbon prospectivity for some hydrocarbon shows in the older medium- to coarse-grained quartz arenites

the 2006 national acreage release. Eumeralla Formation and the younger that were deposited as beach barrier sands — B Pebble Point Formation (Fig. 2). and as deltaic sediments. The Port Campbell Embayment The Late Cretaceous (Turonian) Waarre Stratigraphy Since 1986, when the fi rst hydrocarbon Formation is only present in the subsurface of the hydrocarbon-bearing sediments IVISION gas was produced from the North Paaratte and, in the Port Campbell Embayment, has in the onshore Otway Basin

EPOCH AGE STRATIGRAPHIC D UNITS

(Ma) TIME SEAWARD LANDWARD

141° E 142° E 143° E PERIOD Lutetian ZERO EDGE OTWAY GROUP M 50 EOCENE E Ypresian Dilwyn Fm. OUTCROPPING EUMERALLA FORMATION Thanetian MERINO L Pember Mudstone UPLIFT 60 PALEOCENE Selandian GROUP

TWT (ms) WANGERRIP Pebble Point Fm. E Danian Pebble Point Fm 0 PALAEOGENE Massacre Shale AUSTRALIA 500 70 Maastrichtian

Timboon Sandstone ETROLEUM VICTORIA 1000

1500 Skull Paaratte Campanian Fm. SOUTH PENOLA Creek 2000 80 LATE Mudstone P TROUGH Nullawarre 2500 Santonian Belfast Greensand Mudstone Flaxman Fm 3000 Coniacian

90 Turonian SHERBROOK GROUP 3500 Cenomanian Waarre Formation TYRENDARRA 4000 AND EMBAYMENT 100 38° S 4667 Albian Eumeralla VOLUTA TROUGH 38° S Formation 110 Aptian PORT GROUP CRETACEOUS Katnook CAMPBELL EARLY Barremian Sst EMBAYMENT 120 Laira Fm

Hauterivian Pretty Hill INERALS 130 MUSSEL Valanginian Formation M PLATFORM Berriasian CRAYFISH SUBGROUP 140 Tithonian

BRIDGEWATER Kimmeridgian OTWAY Casterton ARCH 150 LATE Formation

Oxfordian SHIPWRECK VOLUTA TROUGH TROUGH 160 JURASSIC MIDDLE Callovian

shelfal siltstones fluvial volcanoclastics, and marine shales sandstones, mudst., coal 39° S shallow marine and fluvial sandstones PRAWN 39° S nearshore sandstones 050 PLATFOM TARTWAUP fluviodeltaic and lower coastal lacustrine mudstones, km MUSSEL plain sandstones, mudstones and alluvial sandstones 141° E 142° E HINGELINE 143° E Figure 1. TWT structure map: top-Eumeralla Formation. Figure 2. Stratigraphic chart, onshore Otway Basin.

PESA NEWS April/May 2005 5 M INERALS AND P ETROLEUM D IVISION — B ASIN S TUDIES T EAM VICTORIAN 6 gas intheSouth Australiansector. The system withfi The trough containsa proven petroleum deposition oftheCrayfi A majorperiodoftectonicuplift terminates (Fig. 2),representing atectonicsag-phase. lacustrine tofl that are unconformablyoverlain bythe Casterton FormationandCrayfi the non-marinelacustrinetofl Early Cretaceous OtwayGroup, comprising unit intheprovince istheLateJurassicto State boundary. Thedominantstratigraphic straddles theVictorian-South Australian elongate, complex,syn-riftsub-basinthat western OtwayBasin.Thetrough isan of Melbourne(Fig.1),formspartthe Australia approximately 320kmwest Penola Trough, situatedinsoutheastern The northwest-southeasttrending The PenolaTrough potential intheonshore. needs tobeacquired inorder toassesstheir hydrocarbon showstodateandnewdata Point formations,haveyieldedonlyminor objectives, theEumerallaandPebble of intra-formationalseals.Thesecondary this play. Anotherriskfactoristhepresence is oneofthemajorrisksassociatedwith coupled withdepositionalfacieschanges, pinch-out oftheformationinonshore, sandstones needstobeassessed.Therapid and highlypermeableWaarre Formation occurrence anddistributionofporous Shipwreck Trough. More importantly, the elements inthenorthernmostpartof detailed seismicmappingofstructural Campbell Embaymentwilldependon Future explorationsuccessinthePort off exceeds thicknessesof500minthe are hostedbytheWaarre Formationwhich gas discoveriesatThylacineandMinerva Tasmania border. Thecommercial off into theoff southward from thePortCampbellarea N-S strikingsynclinoriumthatextends in theShipwreck Trough (Fig.1),adistinct This hydrocarbon playiswidelyrecognised the source fortheWaarre Formationplay. Lower EumerallaFormationare considered Formation. Coal-bearingsedimentsinthe as theuppermostunitofWaarre Formation whichwaspreviously interpreted some reservoirs are sealedbytheFlaxman Santonian) provides theregional seal,but The marineBelfastMudstone(Coniacian- shore. PESA NEWS shore asfartheVictoria- ve fi oodplain Eumeralla Formation oodplain EumerallaFormation elds currently producing sh Subgroup.

uvial syn-rift sh Subgroup

April/May 2005 shore SUPPLEMENT Haselgrove SouthandRedmanfields Katnook, Ladbroke Grove, Haselgrove, both thePretty HillFormation and fractured Gordon-1 intersectingminoroil showsin 1 encounteringminorgasshows, and showed more promise withMcEachern- invalid tests.Drillingduringthe 1990shas interpretation hasconcluded thesewere in the1960s,andsubsequent seismic Victorian side.Ofthesesix,fourwere drilled exploration wellshavebeendrilledonthe Penola Trough, whilstonlysixpetroleum within theSouthAustralianpartof Over 20wellshavebeendrilledtodate compression. been breached asaresult ofPalaeogene however, sometrapsare thoughttohave structural spillpointorsealcapacity, are reported tobe,orhavebeen,full 1 andWynn-1). Mostgasaccumulations in SouthAustralia( gas andoilcolumnshavebeenpenetrated Pretty HillFormation.Anumberofresidual Casterton Formationandshaleswithinthe rock characteristics,mostnotablythe characterised bygoodtoexcellentsource Several unitswithintheOtwayGroup are commercial ratesofCO of oilinSawpit-1andGordon-1, basement hasyieldedminorquan Eumeralla Formation.Inaddition,fractured intra-Pretty HillFormationandtheintra- sealing lithologiespresent withinboththe Member, andtheHeathfi Sandstone, theWindermere Sandstone reservoir intervalsincludetheMcEachern Hill andLairaformationsrespectively. Other of theOtwayGroup play, namelythePretty represent theprimaryreservoir/seal couplet eeec Section: Reference ulwreGreensand Nullawarre kl re Mudstone Creek Skull ueal Formation Eumeralla lxa Formation Flaxman Formation LANGLEY-1 efs Mudstone Belfast Waarre cf . JacarandaRidge- eld Sandstone, with eld Sandstone,with 2 Ca Cb A B inKalangadoo-1. 200 0 and non- GAPI RDT GR tities mKB 1800 1700 1600 tairpi udvso fe Partridge,1999 after Subdivision Stratigraphic 4 40 140 consideration: Several risksneedtobetakeninto planned by Palaeozoic basement.Furtherdrillingis eastern edgeof thePenolaTrough. is incloseproximity tothenorthern and gas pipelinefrom Melbourne toAdelaide noted thattherecently commissionedSEA to existinginfrastructure, anditshouldbe accumulations astheywere locatedclose the economicviabilityof small gas Embayment. Thesediscoverieshighlighted gas fi success rateledtothediscoveryoffi by Santosin2001where a100%exploration seismic worksimilartothatundertaken mitigated orreduced withdetailed3D system existinthearea. Riskcanbe demonstrate thatanoperatingpetroleum South AustralianPenolaTrough clearly Despite theserisks,discoveriesinthe • • • •

Structural, faultsealintegrity. Victorian sectorofthePenolaTrough. with respect tofacieschangeswithinthe Distribution oftheLairaFormationseal units. sand ratiosoftheproposed reservoir diagenetic characteristicsandnet/gross Subgroup, especiallywithrespect tothe Reservoir developmentintheOtway contains lessthan0.1%CO 55% CO apart, theLadbroke Grove fi Despite beingonlyafewhundred metres LateCO US/F elds intheonshore PortCampbell 2 2

.52.95 1.95 .5-0.15 0.45 , whereas theKatnookfi -charge anditsdistribution. Santos in2005. RHOB NPHI G/C3 V/V Formation. section, Waarre Reference Figure 3. eld comprises 2 . ◆ eld ve contact (OGWC),butalsothecurrent contact showed notonlytheoriginalhydrocarbon techniques usingnear, full,andfarstacks visualization andattributemapping Seismic interpretation, combining fi geoscientists, tobetterdefi of reservoir andsurveillanceengineers, survey wasutilizedbyanintegratedteam completed G01NorthernFields3Dseismic Field gascontactmovementontherecently During 2004,interpretation oftheMarlin ensure optimumdepletionplansare inplace. reserves becomesincreasingly importantto of thevolumeanddistributionforremaining matures, developingafi more than20wells.AsMarlingasproduction has a30+yearproduction historythrough The MarlinGasField,discovered in1966, its worthintheGippslandBa mature MarlinGasFieldhasrecently proven ofanew3Dsurveyoverthe Acquisition Contact. MonitoringOnMarlin Value AddedThroughSeismicGas of thework following twoexamplesare representative opportunities inthematuringfi disciplinary studiestoidentifyremaining A By PhilipJ.Burnett(SeniorExplorationGeologist)&DrKlausW. Mueller(Geophysicist),EssoAustraliaLtd Basin Oil&GasFields Extracting MaximumValue FromTheMaturing Gippsland Halibut-HA1A In-fi Figure 2.Schematic cross-section eld depletion. use oftechnologyandmulti- continues tofocusontheeff ctivity ontheGippslandFields ctivity being underta llWell. rm understanding rm ken. ne theextentof sin. elds. The elds. ective Figure 3.Schematic cross-sectionHalibut-HA6A In-fi VICTORIAN well program conductedinDecember2003 was particularlycriticalindesignofthetwo The identifi the past30years. taken placethrough around 100wellsover complex, withproduction todatehaving depleted Halibut/Cobia/Fortescueoilfi program, conductedonthesubstantially presented asignifi successful. Managingriskmitigation Gippsland Basinoilfi production declinemitigationinthemature Recent infi Drilling Programme Success InALate-lifeHalibut for thismature fi further optimizationofthedepletionplan of thefi (CGWC) intime(Fig.1).Direct monitoring eld contactmovementisproviding cation ofmultiplestackedtargets ll drillingactivityaimedat eld. cant challengeforthis elds hasalsoproven PESA NEWS eld SUPPLEMENT

objectives thatcouldbeoptimallytested performance dataintomultiplestacked 30 yearsofreservoir descriptionsandfi and engineeringcollaboration,distilling identifi from theHalibutPlatform.Target zoneswere separated bysweptsandsandnon-net Halibut-A6A targeted sixsands,also intersecting stackedobjectives. to provide thebestchanceofsuccessfully 2, theHA1Awellpathwasoptimized on Fig. 2). Asshown reservoir qualityatticpool(Fig. reservoir atticpools,andonedeeperlower well intersectedtwosmall,highquality swept reservoir andnon-netsection.The Halibut-A1A targeted foursandsbetween production wellsduetowellbore issues. that couldnotbeproduced from current program were updippools,andreservoirs with atwowellprogram. Objectivesforthe llWell.

ed through afocussedgeoscience April/May 2005 uncertainty (Fig.3). out pre-drill duetoseismic that were originallyrisked pools were encountered successful targets, two out. Inadditiontothefour the objectivesbeingshaled as predicted, withtwoof Four ofthesixtargets were stacked targets defi by themultiplepre-drill potential wasmitigated quality andcross-fault fl of seismicdata,reservoir in time-to-depthconversion resulting from uncertainty sections. Thelevelofrisk survey. Fields seismic G01 Northern Gas Field, on theMarlin interpretation contact (CGWC) and current Original (OGWC) Figure 1.

ned. ◆ eld ow ow 7

MINERALS & PETROLEUMI NDUSTRY DIVISION A CTIVITY (M & p) ORGANISATION— G IPPSLAND B ASIN I NDUSTRY A CTIVITY — G IPPSLAND B ASIN By StephenKeenihan,ExplorationManager, ApacheEnergy Apache ComesTo TheGippslandBasin VICTORIAN 8 Apache activity intheGippslandBasin. signifi of gasinWestern Australia.Apacheisa and condensateperday230TJ/day of approximately 25,000barrels ofoil company currently operatesproduction oil equivalentinreserves andthe Apache holds170millionbarrels of company inAustralia. most activeoff and explorationprogrammes. Apacheisthe billion inacquisitions,fi Australia, Apachehasinvestedover$2 and theStagoilfi production facilitiesonVaranus Island with itsoperationsfocussedaround very strong positioninWestern Australia Since thattime,Apachehasestablisheda a signifi Australia in1991andquicklyestablished Egypt andAustralia.Apachecameto interests inCanada,China,UnitedKingdom, assets thecompanyhasmajorinternational Houston andinadditiontosignifi companies. ApacheCorporationisbasedin the world’s topindependentoilandgas exceeding US$20billion,rankingitamong US$250,000 theCompanynowhasassets 1954 andfrom initialinvestorcapitalof Apache Corporationwasfoundedin and Vic/P-59 (seemapbelow). interests inthree PermitsVic/P-54, Vic/P-58 A cant West Australianproducer ofoil cant operatingpresence inPerth. During theyearApachegained the GippslandBasinduring2004. pache hasturneditsattentionto PESA NEWS shore oilandgasexploration eld. Sinceitsentryinto eld development eld

cant USA April/May 2005 SUPPLEMENT

relatively lowrisk-costenvironment. carrying outexploration/appraisalworkina build knowledgeofthearea whilealso producing areas andoff in Gippslandare adjacenttothemain The initialpermitswhere Apacheisinvolved exploration andproduction canaddvalue. producing areas where theApacheapproach to a proven strategybythecompanytotarget Apache’s entryintotheGippslandBasinfollows line inthenearfuture. has variousprojects anticipatedtocomeon and fl conventional platforms,gasplants,onshore and gas,operatingnumerous monopodand oating crudeoilstoragefacilitiesand er themeansto acquired over 1000 km acquired over1000 2004, Apachehasdrilledtwowellsand Since itsfi urgency, willreap rewards. decisions aggressively andwithasenseof resolve toexplore andtackledevelopment approach” tothe GippslandBasin,our Apache hopesthatbybringing the“Apache years. Thoughsuccesscannot be assumed, drill additionalwellsoverthenext1to2 the GippslandBasinandisplanningto Apache hasanongoingcommitmentto Golden Beachintervals. gas bearingzonesintheintraLatrobe and Longtom-2 andencountered three separate Grayling-1 wasdrilledimmediatelyafter the fi core studiesare notexpecteduntil latein damage hadoccurred. Resultsofallthe upper zonetodeterminewhetherformation was sidetrackedandcores cutthrough the upper zonefailedtoproduce gas.Thewell 15.7 mmcfd(unstabilised)butatestofthe DST inthelowerzonefl previously penetratedinthevicinity. A Emperor Group neitherofwhichhadbeen gas overtworeservoir sectionsinthe the Longtomstructure andencountered Longtom-2 explorationwellwasdrilledinto Basin Apache activityintheGippsland both encountered gasaccumulations. The twowells,Longtom-2andGrayling-1 rst halfof2005. rst involvementinthearea during 2 of 3D seismic data. of3Dseismicdata. owed atarateof ◆

VICTORIAN SUPPLEMENT

Bass Strait Oil Company Ltd – Update On Activities, Off shore Gippsland Basin By Ian Reid, GM Exploration, Bass Strait Oil Company Ltd

ass Strait Oil Company Ltd (BAS) is The most signifi cant of the identifi ed exploring in three permits in the prospects and leads are on trend with Boff shore Gippsland Basin (see Fig. 1); (and analogous to) the Kipper fi eld. The VIC/P41 – 45% and operator, in joint venture Kipling Lead (see Fig. 3) is identifi ed as with partners Eagle Bay Resources NL (EBR) having a prospective resource of 118 MMb and Moby Oil and Gas Ltd (MOG); VIC/P42 recoverable and 820 bcf of gas. Current – 50% and operator with partner Inpex Alpha planning is to acquire the Oscar 3D (50%); VIC/P47 - 40% and operator with programme over the identifi ed play fairway partners EBR and MOG. in late February 2005.

During 2004 BAS prepared for the drilling VIC/P42 of the Moby-1 (VIC/P47) well completed in Figure 2. The ZaneGrey Prospect in VIC/P42. October 2004 and the ZaneGrey-1well VIC/P42 joint venturers will continue

(VIC/P42) completed in March 2005. The assessment of the Omeo gas accumulation, ASIN signifi cant discovery of gas in Moby-1 led as well as update permit mapping anomalies on this 3D defi nes the extent to the ‘fast-track’ acquisition of the 148 km2 and inventory following the drilling of of the gas bearing Gurnard Formation, and B Moby 3D survey using the Western Trident ZaneGrey-1 (See Fig. 2). The joint venture is consistent with the gas water contact survey vessel. In VIC/P41 575 km2 of 3D will give consideration to the shooting of defi ned from Moby-1 well pressure data. seismic was acquired to improve defi nition further 3D seismic over and in the vicinity However, over the rest of the structure poorer and risk assessment of a portfolio of leads of Omeo. In the meantime, the main focus quality 2D data does not allow its accurate and prospects already identifi ed on 2D data. is on the presently known remaining 3D delineation, but the structural interpretation Contingent wells are also being planned defi ned prospects in the permit, Edina suggests an extensive accumulation. To IPPSLAND in VIC/P47; with a potential Moby-2 as a Deep and Hemingway. Edina Deep is an more accurately delineate the areal extent follow-up to the success in Moby-1. BAS Intra Latrobe and Golden Beach play, while of the Moby gas reserves BAS acquired the will also operate a farm-in well in VIC/P47, Hemingway has dual targets down to the 148 km2 Moby 3D survey which is currently

Gilbert-1, on behalf of Lakes Oil NL. Golden Beach. being processed. — G

VIC/P41 VIC/P47 BAS is also undertaking an evaluation of the Judith-1 gas discovery, reservoired BAS acquired 223 km of 2D data as infi ll, The Moby-1 well drilled on the Moby in sandstones of the Emperor Subgroup, which together with the existing dataset has Prospect in October 2004 produced gas which were never tested. Similar gas CTIVITY led to an extensive portfolio of prospects on wireline formation test (see Fig. 3). The reservoirs in the nearby Longtom-2 well

and leads in VIC/P41 (see Fig. 3). Baleen 3D survey, over the nearby producing to the west tested at encouraging fl ow A Patricia Baleen gas fi elds, only covers the rates (see Fig. 3). ◆ The VIC/P41 joint venture has agreed that western limit a more extensive 3D survey is warranted in of the Moby this prospective permit and 575 km2 was structure. acquired using the M/V Western Trident in The presence an 8 streamer, 4800 m confi guration. of amplitude NDUSTRY I

Figure 1. Location map of VIC/P41, VIC/P42 & VIC/P47. Figure 3. Prospects and leads in VIC/P41 and VIC/P47.

PESA NEWS April/May 2005 9 VICTORIAN SUPPLEMENT

Construction Underway On The Otway Gas Project By Woodside Energy Limited

onstruction activities which commenced on schedule in late CSeptember 2004 are well underway on the $1.1 billion Otway Gas Project.

The Otway Gas Project is separated into two phases. Construction of the Project’s Phase 1 includes the development of the Thylacine fi eld, located approximately 70 km off the coast of Port Campbell in south west Victoria. This phase has an approved budget of A$810 million and the fi eld is expected to come into production in mid-2006. Development of Phase 2 is the Geographe fi eld, located 55 km off shore. This fi eld will be connected into the main ASIN off shore pipeline about three years after

B Thylacine is in production.

Following a Final Investment Decision (FID) in May last year, the Project received all 20 people have been diligently preparing of the Onshore Gas Plant (located adjacent TWAY required regulatory approvals before the the site to carry out horizontal directional to SPI’s facility off Waarre Road, 6km north construction start date in September. These drilling (HDD) of two pipelines (4” and 20” of Port Campbell). Technip Oceania has been approvals included an amendment to the in diameter), each 800 m in length. awarded this scope of work and to date Corangamite Planning Scheme, a works have undertaken initial site preparations at — O approval application for the construction Work is nearing completion following the the gas plant involving earthworks, fencing, and operation of the gas processing plant successful installation of the casing pipes offi ce installation and hook-up services. and an application for a Permit to Own and across the shore line. The remaining scope Activities are now focussing on the civil Use the onshore pipeline. of work entails some diving activity at the works (foundations) which will continue seaward ends and fi nally, demobilisation of over the next couple of months. Technip CTIVITY Since September, construction activities the equipment which is due to be completed is also responsible for laying the Onshore have largely focussed on the two onshore by May 2005. Pipeline which connects the HDD site to the

A sites. The fi rst of these is the shore crossing gas plant. This pipeline will be installed at component, being undertaken by DrillTec The second site is the engineering, the end of 2005. Australia Pty Ltd. A small team of about procurement, installation and construction A third construction group, also being managed by Technip, commenced work on the off shore platform in January 2005. NDUSTRY I The fabrication component of the off shore platform has been awarded by Technip to Malaysian Shipyard and Engineering (MSE) in Jahor Bahru and is expected to be completed in August 2005. It will be then loaded out for shipment in September to Thylacine.

Otway Gas Project Manager Mike Shearman says, “At this time we are on schedule and within budget for a mid-2006 start-up, albeit that we are working within a very aggressive schedule. Our fi rst major project milestone is close to being achieved with the completion of work at the Rifl e Range (HDD) site and work is progressing well at the gas plant which has now mobilised about 50 personnel. This number is expected to build up to about 300 later this year.

10 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

The “Maersk Guardian” jack-up drill rig The Otway Gas Project will supply more than • Shore crossing construction at the Port (owned and operated by Maersk Contractors 60 petajoules of sales gas per year to the Campbell Rifle Range (horizontally SA) is currently in the Mediterranean and is South East Australia gas market, enhancing directionally drilled). scheduled to arrive at the site to assist with security of supply and providing competition the platform installation in late October/ in both Victoria and South Australia. • Construction of an 11.5km onshore early November this year. It will then pipeline from the shore crossing to undertake the drilling of four production The natural gas component alone is the gas plant, planned to commence in wells starting in early 2006. All seas will estimated to be able to supply about 10 November 2005. commence laying the off shore subsea per cent of south-eastern Australia’s current pipelines starting in late October this year, energy demand over a ten year period. • Laying of two 70km off shore pipelines using their vessel the ‘Lorelay.’ (20” and 4” diameters) and tie-in to the Along with the gas, the Otway Project platform, commencing in November Our biggest risk for the project over the will also produce 12.2 million barrels of 2005. next twelve months will be the weather. condensate and nearly two million tonnes of The Thylacine area is renowned for extreme LPG during its expected production life. • Fabrication and transportation of the and unpredictable weather patterns coming off shore platform to the Thylacine gas fi eld from the Southern Ocean which can create On 3 February 2005, Woodside signed a and installation by a jack-up drilling rig in very large seas. We have already witnessed Condensate Gas Sales Agreement with November 2005. this impact with the worst storm recorded in Shell’s Geelong refi nery and the Project’s early February for Victoria in 150 years. liquefi ed petroleum gas is expected to be • Drilling of four Thylacine production ASIN sold to distributors operating in Victoria. wells is due to start around January 2006

Community support for the project also and expected to be completed around B continues to be an integral part in keeping Joint Venture interests in the Otway Gas Project September 2006. the project on track. Woodside meets includes Woodside Energy Ltd (Operator) regularly with a consultative community 51.55%, Origin Energy Resources Limited TWAY reference group which visited the gas plant 29.75%, Benaris International N.V. 12.7% and construction and shore crossing sites in CalEnergy Gas (Australia) Limited 6%. For more information, contact: November to see fi rst-hand the work being Nicole Turner undertaken. Further meetings and updates Phase one (Thylacine)

Corporate Aff airs Adviser — O will be held regularly throughout the Construction schedule includes: construction, and then operational phases • Construction of the onshore gas Woodside Energy Ltd ◆ of the Project. processing plant. Ph: +61 8 9348 5713 CTIVITY The Casino Timeline: An Example Of Fast Track Exploration,

Appraisal And Development, Off shore Otway, Victoria A By Santos Limited

Introduction at a maximum rate of 0.145 MMscfgd (BMR a farm-in agreement with Strike, taking a 1969). Fourteen exploration wells have been 50% equity and operatorship of VIC/P44 he Casino gas fi eld is located in the drilled in the Shipwreck Trough / Mussel in return for funding the bulk of the 3D NDUSTRY I southeast corner of the off shore Platform region resulting in the discovery acquisition and drilling the fi rst exploration T Otway exploration block VIC/P44 of 5 gas fi elds; La Bella (1993), Minerva well. In late 2001, 540 km2 of 3D data and (Figure 1). Close integration between the (1993), Thylacine (2001), Geographe (2001) 69 km of 2D seismic data was acquired over technical and commercial teams responsible and Casino (2002). the eastern portion of the block. for the asset resulted in a very short exploration to production time cycle. First Strike Oil was awarded VIC/P44 in 1999, 2002 - Exploration gas production is scheduled in early 2006, with a work commitment of technical little more than 4 years after recording 3D studies and seismic reprocessing in Years In September 2002, Casino-1 encountered seismic over the prospect. 1 and 2 and a small (108 km2) 3D survey in gas in sands of the Late Cretaceous Waarre Year 3. Drilling commitments were part of Formation. Casino-2, drilled immediately Off shore Otway exploration the secondary, discretionary programme. afterwards, appraised the gas bearing history interval encountered by Casino-1 and tested 2001 – Farm-in an additional, younger sand that is absent The fi rst off shore well in the Otway Basin, in the fi rst well. Casino-2 successfully Pecten-1A, was drilled by Shell in 1967 Following a series of successful onshore appraised the Casino-1 gas sand, proved (Figure 1). A condensed section of the gas wells in the Port Campbell Embayment, the presence of gas in the younger sand and Late Cretaceous Waarre Formation was Santos was looking to extend the Waarre also revealed that the Casino-1 reservoir is encountered and a drill stem test fl owed gas play off shore. In August 2001, Santos signed approximately 200 psi over-pressured.

PESA NEWS April/May 2005 11 VICTORIAN SUPPLEMENT

The data from the two wells was not suffi cient tight timeframe culminating in Joint Venture Venture partners now have the option to to declare the fi eld a commercial discovery. approval of the subsurface development supply TXU with up to 420 PJ of gas for 12 Signifi cant subsurface uncertainties remained, plan in August 2004. Further refi nement of years from both the Casino fi eld and any the most important being whether or not the static and dynamic modelling took place future exploration discoveries in VIC/P44. the younger reservoir was over-pressured. prior to the compilation and submission Figure 2 illustrates the major milestones If a similar pressure regime existed in of the Preliminary Field Development in the project. the younger sand, the fi eld’s reserves Plan to the government authorities in would be insuffi cient for a commercial September 2004. All necessary regulatory approvals have development. been granted and major construction In parallel with the subsurface technical contracts were awarded by late 2004. 2003 - Appraisal work, the regulatory approvals process and off shore engineering and contracting eff orts The way forward In July 2003, Australian Worldwide were kicked off in late 2003 in order to meet Exploration Ltd announced that its 100% the rapid schedule to fi rst gas. Field construction activities started in early owned subsidiary Peedamullah Petroleum 2005 and development drilling will start in Pty Ltd. had purchased Strike’s remaining The Casino GSA was signed on 12th October March 2005. 50% interest. AWE subsequently farmed 2004 and following this, the Joint Venture out half of this interest to Mittwell Energy announced the fi nal go-ahead for the Planned annual production from Casino is Resources Pty Ltd., a wholly owned Casino development. Santos and its Joint anticipated to plateau at 35 PJ, based on subsidiary of Mitsui & Co. Ltd. of Japan. proven and probable ASIN gas reserves of 285 PJ

B Current equities for VIC/P44 are Santos with fi rst production Limited 50% and operator, Peedamullah expected in early Petroleum 25% and Mittwell Energy 25%. 2006. TWAY During the early part of 2003, the Success at Casino- interpretation for the fi eld was updated 3 enabled a small, using the data acquired from the two wells. close knit team to Seismic interpretation and inversion, core focus on meeting the — O based sedimentology, petrology, palynology ambitious targets set and the building of a 3D static reservoir out in the agreement model were the main components of the with TXU and resulted sub-surface technical work carried out in the fast track during 2003. It soon became obvious that development of the CTIVITY an appraisal well was needed. fi eld. ◆

A In addition to the technical work, commercial negotiations had been taking place between the VIC/P44 JV and TXU. An innovative deal arose from these talks, whereby Casino’s gas was already contracted, should the Figure 1. Location Map. appraisal well prove up suffi cient reserves. NDUSTRY This eff ectively removed both the risk I fi nding a market for the gas and the time needed to fi nd a buyer, major hurdles that are usually addressed after a fi eld has been appraised.

Casino-3 was drilled during October and November 2003 and met all its pre-drill objectives, including the testing of the younger reservoir (Waarre C), which fl owed at 45 MMscfgd.

2004 – Project approval

Throughout the fi rst half of 2004, the sub- surface work focussed on defi ning the GIP and reserves range for Casino. Additional seismic inversion, static and dynamic modelling work was undertaken under a Figure 2. Project Timeline.

12 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

Essential Petroleum Resources Limited Is Unlocking The Potential Of The Otway Basin By Essential Petroleum Resources Limited

Essential Petroleum Resources Limited quarter of 2005 for drilling in the Permit’s age contained in large rotated fault blocks. (EPRL) was established in 1999 with a third year. Both plays are analogous to the highly prolifi c view to becoming a leading explorer in plays in the Campos Basin in Brazil. the Otway Basin. EPRL has acquired interest PEP 150 in four onshore (PEP150, PEP151, PEP152 PEP 150 (Figure 1) overlies the eastern half VIC/P46 and PEP159) and two off shore (VIC/P50 and of the onshore part of the Portland Trough Essential holds 100% interest in VIC/P46 VIC/P46) permits (see location in the inner and contains the older Ardonachie Trough (Figs. 2 &3) and is the permit’s operator. On back-cover map). EPRL has exposure to a to the North. The Ardonachie Trough has the continental shelf, EPRL has identifi ed growing portfolio of mature exploration strong similarities to the gas producing several prospects associated with large prospects, off ering unique leverage to its Penola Trough in onshore South Australia. structural closures located on the Cape shareholders in the event of oil and gas Bridgewater High, a major structural feature discoveries anywhere in the Otway Basin. Exploration will commence in PEP150 with in VIC/P46 (Figure 2). a seismic survey following the completion Onshore acreage of the Native Title agreement. Interpretation of new seismic data acquired ASIN Essential’s 2002/2003 exploration program

resulted in a light oil and gas fi nd in PEP152 B at Port Fairy-1 well. Whilst this discovery is not commercially viable, due to a tight reservoir, it has validated our understanding TWAY of the petroleum systems in this onshore region.

The Company is now focusing its attention on exploring the Portland Trough (Figure 1). — O The potential of the Trough was fi rst recognised by the discovery of oil in the Lindon structure located on its fl ank. This fi nd confi rms that hydrocarbon generation, CTIVITY migration and entrapment has occurred and validates our belief that a petroleum system exists in both PEP151 and PEP150. A

PEP 151 Essential holds 100% interest in PEP151 (Figure 1) and is the permit’s operator. The Native Title Exploration Consent Deed granted by the Gunditjmara People NDUSTRY I and the consent to explore in the Lower Glenelg National Park (LGNP) granted by the Victorian Government have allowed Essential to be the fi rst to have access Figure 1. Identifi ed prospects and leads in PEP150 and PEP151. and properly explore part of the onshore Portland Trough. Off shore acreage in late 2002 indicates the existence of several prospects associated with large, In 2003, Essential conducted the Nelson Essential acquired the off shore permits VIC/ northwest-trending structures in the near- Seismic Survey in and around the LGNP. This P46 and VIC/P50 just prior to the major gas shore part of the permit. The structures innovative 3D seismic survey allowed the discoveries in the Shipwreck Trough in the contain a number of closures in the Waarre, delineation of sub-surface structures with eastern off shore Otway Basin. Nullawarre and Pebble Point formations potential reservoirs beneath the LGNP. and include two very large closures at the Of particular interest to EPRL is the Oligocene Flaxman and Waarre Formation levels known Interpretation of the survey has identifi ed a basin fl oor turbidite complex play located as the ‘Fermat’ and the ‘Kepler/Bernoulli’ number of promising prospects and leads, beneath the present day continental slope Prospects (Figure 2). These prospects which are shown in Figure 1. The Company which spans the adjacent boundaries of VIC/ are similar in style to the Geographe and anticipates that the fi rst prospect drilling P46 and VIC/P50 (Figure 3). Also of interest Thylacine gas fi elds in the Shipwreck location will be fi nalised in the second are the structural closures of Late Cretaceous Trough further to the east.

PESA NEWS April/May 2005 13 VICTORIAN SUPPLEMENT

The Fermat Prospect is a combined structural and stratigraphic trap on the fl ank of a large tilted fault block. It lies down-dip off the Normanby-1 well where seismic attribute analysis indicates improved reservoir development. It is greater than 123 km2 in area, and is located only 13 km from the coast. The prospect has signifi cant amplitude and AVO anomalies associated with it and has the potential to host over 1.2 TCF of gas.

The Kepler/Bernoulli Prospect is a horst structure over 70 km2 in area. It also has signifi cant amplitude and AVO anomalies associated with it and has the potential to yield as much as 1.9 TCF of gas.

One exploration well is required to be drilled in VIC/P46 in permit year fi ve. The permit ASIN is currently in its fourth year. B VIC/P50 VIC/P50 (Figure 3) was acquired to explore the hydrocarbon potential of the outer TWAY continental shelf and continental slope. Figure 2. Identifi ed prospects and leads in VIC/P46. Newly acquired and reprocessed older seismic data are expected to defi ne existing plays and identify targets for exploiting this — O deep-water region.

Initial studies identifi ed two moderately deep-water blanket (sheet-sand) turbidite complexes of Oligocene age. The ‘Descartes’ CTIVITY and ‘Henty’ turbidite prospects overlie tilted fault blocks and are shown in Figure 3. The

A Descartes Prospect is the larger of the two and has the potential to host many million barrels of oil. Another target is the ‘Curie Lead’. This is a very large rotated tilted horst block structure in deep water at the base of the present day continental slope. NDUSTRY The lead is over 96 km2 in area (Figure 3) I and has the potential to host up to 700 million barrels of oil equivalent.

A well drilled to test the Descartes turbidite play would be anticipated to intersect a secondary tilted fault block target identifi ed as the ‘Newton Lead’.

VIC/P50 requires one exploration well to be Figure 3. Identifi ed prospects and leads in VIC/P46 and VIC/P50. drilled in the next permit (permit year 3). both oil and gas have been identifi ed. Victorian part of the Otway Basin and will The future unlock the potential of EPRL Otway Basin The Company will be participating in the assets. Essential Petroleum has a mature prospect drilling of at least one well onshore and inventory in the most prospective part of two wells off shore over the next 12 to 18 For further information contact John the Otway Basin outside of the Shipwreck months. A discovery in any one of these Remfry on (03) 9699 3009 or email Trough. Prospects associated with fi ve wells will confi rm the presence of a new [email protected]. ◆ diff erent play types with potential to discover hydrocarbon province within the western

14 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

Petroleum Resources And Operations During 2003/2004 By Dr Kourosh Mehin, Principal Petroleum Resources Adviser, Minerals & Petroleum Regulation Branch

uring the 2003/04 fi scal year, new 2D Signifi cant oil and gas discoveries have continued and and 3D seismic data was acquired been made in both onshore and off shore contribute addit- Dand drilling and production areas of the Victorian basins and within the ional reserves, activities continued in both the onshore and Tasmanian portion of Bass Basin as a result which offset the off shore areas of the Victorian hydrocarbon of exploration and appraisal drilling. declining production provinces. This surge in exploration is from major fi elds. likely to be sustained in 2004/05 as a The following wells were drilled: consequence of an increase in planned • In the off shore Victorian Otway Basin, Santos During this fi scal Kourosh Mehin drilling operations and data acquisition. Ltd drilled two wells, one development well year, the average (Casino-3) in VIC/P44 and one exploration crude oil and condensate production rate Exploration and development well (Hill-1) in VIC/ P51. was approximately 118 thousand barrels per activities • In the onshore Victorian Otway Basin, day (kbpd) of which 110 kbpd was produced Essential Petroleum Resources Limited from major oil fi elds (West-Kingfi sh, Halibut, Expenditure drilled two exploration wells (Killarney Mackerel, Blackback, Fortescue, Tuna, Expenditures related to petroleum exploration, EPRL-1) in PEP152 and in PEP159 (Findra-1) Dolphin and Tarwhine). These off shore development drilling, data acquisition and and Texas Underground (TXU) drilled one fi elds are now contributing more than 77% workover operations totalled $163.6 million development well (Iona-6) in PPL2. of liquid production from the Gippsland during the 2003/2004 fi scal year. This • In the off shore Tasmanian Bass Basin, Basin. The average production is estimated included the costs for acquiring 962-line Origin Energy drilled one development at about 12% lower than during 2002/03. km of 2D and 210 km2 of 3D seismic data well (Yolla-4) in T/L1. (Table 1), exploration and development • In the off shore Gippsland Basin, BHP Gas production met winter demand of drilling as well as workover operations in Billiton drilled one exploration well 900 + million cubic feet per day (Mscft/d). both onshore and off shore. (Megamouth-1) in VIC/P45, and Esso/BHP On average, demand is about 700 + Mscft/d Billiton drilled one appraisal well (West and the average summer rate demand is Exploration, Development and Whiptail-1) in VIC/L1. 500+ Mscft/d (Fig. 2). ESOURCES Workover Drilling Operations • During the 2003/04 fi scal year, Esso/BHP R During the 2003/04 fi scal year, a total Billiton completed eight development wells Underground gas storage of six exploration/appraisal wells, 13 as follows: one well in VIC/L3, one well in development wells (including one well in VIC/L4, two wells in VIC/L5 and four wells The Iona gas fi eld is located approximately Tasmanian waters, Yolla-4) and one shallow in VIC/L11. The workover operations by 8 km northwest of the city of Port Campbell stratigraphic well were drilled. In addition, Esso/BHP Billiton continued over several in southwestern Victoria. It is the fi rst 116 workover operations were also carried of the early producing oil fi elds, notably fi eld in the State that was converted to ETROLEUM out within the off shore production licence at Tuna, West-Tuna, Flounder, Halibut, underground gas storage of natural gas P areas (Fig. 1). Kingfi sh and West-Kingfi sh. in order to meet Victoria’s heavy demand • In the onshore Gippsland Basin, Lakes during the winter season. Gippsland Basin Otway Basin Oil NL drilled one shallow stratigraphic Total Seismic Onshore Off shore Onshore Off shore Acquisition well (Patties Pie South-1) in PEP156 and Texas Underground (TXU) began operations 962 one exploration well (Wombat-1) and two in mid-1999. During fi scal year 2003/04, a 2D - - 962 - (km) appraisal wells (Wombat-2 and Trifon-2) in total of 4 billion cubic feet (Bcf) of gas was 210 3D - - 210 - (km2) PEP157. The drilling results of Wombat-1 injected and about of 6.2 Bcf of gas was were encouraging and the well fl owed extracted from the Iona fi eld (Fig. 3). Table 1. Seismic Acquisition (July 2003 - June 2004). signifi cant amounts of wet gas from the Early Cretaceous Oil and gas reserves (Strzelecki Group) reservoirs. Off shore Gippsland Basin 02/03 03/04 160 149 As of June 30th 2004, some 3.8 billion barrels 140 (Bbbls) of liquid hydrocarbon from off shore 116 Production 120 Gippsland Basin has been produced. The 100 The off shore fi elds in remaining liquid hydrocarbon reserve is 80 the Gippsland Basin 285.2 Million barrels (Mbbls). 60 No.ofWells are still considered to 40 be a major source for The gas reserves from Esso/ BHP Billiton 12 14 13 20 6 oil and gas production licence areas was depleted from an initial 9.9 0 in Australia. Infill, trillion cubic feet (Tcf) to about 3.4 Tcf. Exploration Drilling Development Drilling Work-overs development drilling and workover The total estimated oil-in-place in the Figure 1. Petroleum drilling activities – Victoria (2002/03 –2003/04). operations have undeveloped fi elds in the basin is about

PESA NEWS April/May 2005 15 VICTORIAN SUPPLEMENT

Production Mcf Injection Mcf 3000

600 1200 2000

500 1000

1000 400 800

300 600 0 Jul-98 Nov-98 Mar-99 Jul-99 Nov-99 Mar-00 Jul-00 Nov-00 Mar-01 Jul-01 Nov-01 Mar-02 Jul-02 Nov-02 Mar-03 Jul-03 Nov-03 Mar-04 Jul-04 Gas MCF 200 400 -1000

100 200 Gas Production MCFT/D Oil Prodution Rate KBBL/D

0 0 -2000 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004

-3000

Figure 2. Historical Gippsland Basin Oil and Gas Production Figure 3. Iona gas fi eld gas production/injection (July 1998- July 2004). (1968 to 2004).

Onshore Otway Basin petroleum exploration areas during the Released Granted Permit Holders Block Permit As at 30th June 2004, the gas reserves 2003 APPEA Conference. The areas were V03-1 VIC/P57 3D Oil Pty Ltd in the onshore Victorian Otway Basin released based on a six-year work program V03-2 VIC/P58 Apache Energy Ltd eastern gas fi elds (Port Campbell region) bidding system. V03-3 VIC/P59 Apache Northwest Pty Ltd were reduced from the initial 103.1 Bcf ESOURCES Holloman Corporation, to 13.2 Bcf (includes the reserves of the The off shore bids for the Commonwealth and Australia-Canadian V03-4 VIC/P60 State Water blocks were assessed according R undeveloped fi elds). Current producing gas Oil Royalties, Robert Thorpe and Ely Sakhi fi elds in the Port Campbell region are the to the relevant PSLA guideline and the gazetted areas were granted to the following 03-1(v) VIC/P39 (v) Nexus Energy (Aust) NL Fenton Creek, Tregoney, McIntee, Mylor, Penryn, Croft, Naylor, and Seamer fi elds. exploration companies shown in Table 2. 03-2(v) VIC/P40 (v) Petrotech Pty Ltd. The undeveloped gas fi elds are the Grumby, Table 2. New Petroleum Exploration Permits. Langley and Buttress fi elds. Retention lease Off shore Otway Basin ETROLEUM

P 400 Mbbls, of which 329 Mbbls is within The initial carbon dioxide gas reserves in BHP Billiton Petroleum (Victoria) Pty Ltd and the Esso /BHP Billiton fields and the the Boggy Creek and Buttress fi elds is of the Santos (BOL) Pty Ltd made an application remaining 71 Mbbls within fi elds held order of 19.7 Bcf. Cumulative carbon dioxide for renewal for retention lease VIC/RL7 by other operators. The total estimated gas production from the Boggy Creek fi eld (La Bella gas fi eld) in off shore Otway gas-in-place in the undeveloped fi elds in as at the 30th June 2004 was about 5.2 Bcf, Basin. This application was assessed and the basin is about 4.8 Tcf of which 3.4 Tcf leaving reserves of 14.5 Bcf. For further the VIC/RL7 lease area was renewed on is within the Esso/BHP Billiton fi elds and information on production statistics, visit: 22 November 2003. remaining 1.4 Tcf within the fi elds held by www.dpi.vic.gov.au/minpet/Oil and Gas/ other operators. Resources and Production. Production licences Off shore Otway Basin Off shore Otway Basin Leasing Woodside Energy, operator of the Geographe The gas-in-place in the undeveloped gas fi eld, submitted to the government Victorian and Tasmanian fi elds is estimated Petroleum tenements Field Development Plan (FDP) which was to be 3.5 Tcf, of which 1.4 Tcf is within Off shore Acreage Release assessed and approved. As a consequence, the Victorian Casino, Minerva, La Bella and The Commonwealth of Australia and production licence VIC/L23 was granted on Geographe fi elds. the State of Victoria jointly released six 24 June 2004. ◆

Minerals And Petroleum’s Online Web databases and display the results as maps (at various scales) or tables. Mapping Application - GeoVic By Maher Megallaa, Manager Acreage Release (GeoScience Victoria, For the petroleum industry, online viewing M&P) and Rob Lane, Senior GIS Systems Specialist and interrogation can be carried out utilising ERVICES (Information Development Branch, M&P) the following layers:

S • Petroleum Tenements (Tenements/Current ince the last article on MapShare in the The GeoVic web mapping application Tenements folder) March 2004 Victorian Supplement in only requires a web browser (Internet • Current Petroleum Acreage Release SPESA News, Minerals and Petroleum Explorer 5.5+). It provides explorers with (Tenements/Current Tenements folder) Division (M&P) have upgraded and included online access to Victoria’s wealth of petroleum • Wells-Petroleum (Wells and Boreholes new petroleum layers on its web mapping datasets and helps them to carry out their folder) application ‘MapShare’ and changed its business. It allows users to search, view, • Boreholes - Petroleum (Wells and Boreholes name to ‘GeoVic’. interrogate and download M&P’s geospatial folder) NFORMATION I 16 PESA NEWS April/May 2005 VICTORIAN SUPPLEMENT

mostly in the Gippsland Basin, have log summaries.

Seismic Surveys Clicking on and interrogating a selected line from the 2D seismic survey grid layer will also display a table of attributes for this survey. Shotpoints will display at scales 1:15,000 or more.

Similarly, the 3D survey polygons are linked Figure 1. Main Screen showing tools, Figure 2. A display of basement depth map, to a table of attributes. layers and folders and Map of Victoria - location of a selected seismic profi le and a pdf incorporating Petroleum Tenements. display of the seismic line. Seismic and Well Cross-sections A new folder has been created and named • 3D Seismic Survey Boundaries (Geophysical the “Find” - “Adhoc Query Builder” function ‘Cross Sections’. This folder contains the and Geochemical Surveys folder) on the “Wells - Petroleum” layer. location of the cross sections distinguished • 2D Seismic Surveys (Geophysical and Geochemical Surveys folder) by their type such as Seismic Cross Sections, • Digital Airborne Geophysical Surveys GeoVic allows the user to create their own Well Correlation Cross Section. Activating (Geophysical and Geochemical Surveys complex maps, and gives them control over the “Identify” function and clicking on the folder) layer order. An example is given in Figure 2, selected cross section will display a pdf-fi le • Analog Airborne Geophysical Surveys which shows a composite display showing for this profi le. (Geophysical and Geochemical Surveys a depth to basement (from an interpreted folder) aeromagnetic Gippsland Basin survey), Seismic Maps • Gravity, magnetic, radiometric, two way the location of a selected regional seismic The older Images folder has been re-named time structure and depth structure images section and a pdf-display for this selected to Georeferenced Images under which a (Georeferenced Images and subfolders) seismic section. new sub-folder has been created containing ERVICES • Geological maps & interpretations at Two Way Time Structure, which in turn

1M, 250k, 100k and 25k scales (Geology S Wells contains new images. The Top Latrobe folder) The well status is indicated by the well Gippsland Depth Structure Image has also • Land-use (Land Status and Boundaries symbol. Currently there are two layers been added. Folder) relating to wells. One is named ‘Boreholes - Development The GeoVic web mapping application has Petroleum’ and the other ‘Wells - Petroleum’. been built using the Department of Primary The reason for this is that the petroleum The GeoVic application is continually Industries’ ‘Mapshare’ infrastructure. It data is currently stored in two-separate being upgraded as part of M&P’s policy to

uses ESRI ArcIMS software, which links databases - each containing diff erent incorporate more data, functionality and NFORMATION directly into the Department’s SDE Oracle attributes. Eff ort is underway to reconcile downloading options. I databases. Searches can be quite powerful this overlap. and usually involve the retrieval of many To access the application, visit www.dpi. useful attributes. For example, the search By interrogating and clicking on a selected vic.gov.au/minpet/ and click on the ‘Explore for wells with TD greater than 2000 m (or well (within “Wells - Petroleum”) it will bring Victoria Online – GeoVic’. For further wells drilled by a certain company or drilled up a table of attributes which in some information regarding GeoVic please contact since a certain date) would result in the cases includes a pdf-fi le for the Well’s Log us at [email protected] or contact: display of such wells. This is done by using Summary Sheet. Approximately 120 wells, Rob Lane, on (+61 3) 9658 4574. ◆

Petroleum Information Group Update By Bob Harms, Manager Petroleum Information Services Team, Energy Geoscience Group

Asset cataloguing ASCII dumps of these catalogues are explorers to have the same potential data available so that exploration companies can querying capability as DPI’s internal dbMap The Petroleum Information Group has fi nd, peruse and evaluate the data. These installation (for more information contact gradually been cataloguing reports, logs, ASCII dumps also identify whether the DPI and/or Petrosys Pty Ltd). tapes and other exploration and production report has been electronically scanned. items. To date more than 80,000 items For those companies without dbMap have been catalogued with priority given Dbmap database database software, DPI off ers a HTML to the most requested data. The aim of For those companies with a dbMap database version of the database records, that allows the cataloguing is to create a reliable and software installation, DPI is off ering a dump quick pre-canned queries and data access, consistent framework upon which later of the data in a format that is compatible and very handy listings of data assets in work can be based. with the dbMap software. This allows the catalogue.

PESA NEWS April/May 2005 17 I NFORMATION S ERVICES Existing PetroleumDataOnCds&Dvds access totheopenfi future third partieswillhavethesameready and otherdata.Itisenvisionedthatin parties tohaveready accesstothereports the scannedimages,willenablethird The catalogueofmaterial,combinedwith VICTORIAN 18 of openfi provides acompletesuite (Otway andGippsland) This packageoftwoCDs Contents: Available forpurchase Biostratigraphy Data Victorian Now available wells andsurveys. of thelatestopen-fi version ofthisDVDsothattheyareappraised Note: releases. correct anyomissionsorerrors inprevious provide themostrecent open-fi This packageisupdatedeverysixmonthsto Versions • • • • • • • • • various formats: The packageincludesthefollowingdatain that canbeeasilymanagedandretrieved. geophysical informationandGISdatainaform very usefulgeological& Package DVD The Petroleum GISData Contents Available forpurchase Petroleum GISData Victorian assist intheiruse. They are accompaniedbydocumentationto were scannedandconvertedtoAdobePDFs. documents includedintheCD&DVDpackages aid toexplorers inVictoria. Thereports and Data Packages” G information Spreadsheets ofwell,survey, line,andother and thedbMapdatabase HTML versionofthedbMapassetscatalogue Rivers, Lakes,CoastlinesandIslands,etc). National ParksandRestrictedAreas (eg. Pipelines, and Current Permits, Roads andtowns, Fields outlines, General welldatainformation, Gippsland basins), tape listings(forsurveysintheOtwayand locations (UKOOA)andavailableSEG-Y Generalseismicsurveysdataforshotpoint explorers should always obtain the latest explorers shouldalwaysobtainthelatest “Victorian PetroleumExploration set ofCDsandDVDsknownasthe eoScience Victoria hasproduced a le biostratigraphic reports data.

PESA NEWS contains . Thesedatapackagesare an : Version 2.0c (August2004). le reports,seismic lines, le reports anddatasets

le dataandto

April/May 2005 SUPPLEMENT

is tomakemore useofwebdelivery Furthermore, theGroup ‘sfuture objective and accesswillbereduced. any existinglimitationsondataavailability available todepartmentaloffi Source RockAnalysesetc). geochemistry data(egVitrinite Refl a completesuiteofopenfi (Otway CDandGippslandDVD)provide The Victorian Source RockDatapackages Currently availablefreeofcharge Victorian SourceRockData available onthe Victorian Petroleum GISDVD, fi change thebarcode fi Now available: • • • packages: Gippsland basinsare includedonthree DVDs for wellsdrilledwithintheOtwayand Completion Reports All openfileWell Contents Available forpurchase Reports Packages Well Completion explorers inVictorian Basins. have beenselectedfortheirrelevance to (Gippsland andOtway).Thesejournalarticles been scannedandplacedontotwoCDs ASEG, PESA,andAPPEAjournalpapershave geological &geophysicaljournalpapers. provide asuiteofeasy-to-accessscanned The Victorian PublishedPaperspackages Contents Currently availablefreeofcharge Victorian PublishedPapers Contents lenames of Package. Onshore OtwayandOnshore GippslandDVD Off Off shore GippslandDVDPackage shore OtwayDVDPackage your choice(thesePerlscriptsare Perl scriptswhichcan lenames intomeaningful l petroleum le cers and that ectance, • • • GeoScience Victoria. set ofreports andpublicationsprepared by Publications DVDprovides acomprehensive The Victorian Contents of charge Currently availablefree Publications DVD Victorian Petroleum e-mail blockingsystems). that are notcompatiblewithmostcorporate but notviae-mailsincetheycontainBAT fi data andmetadata. that willenableXMLandHTMLdeliveryof Victoria’s Petrosys dbMapdatabasesoftware techniques inaneffi Phone: (613)9658 4440. [email protected] Further InformationContact: as TIFimages. The onshore seismicsectionswillbescanned • • • • • from industryisapparent: DVD Packagesthatcanbeprepared ifdemand newly releasedVIMPreportsseries. featuring aneasier-to-access mapinterfacefor Now available • • • • Contents "Resource Book"(provides oil&gasreserves new andexistingplayers); to exploringforoilandgasinVictoria for "Guide forExplorers" (givesanintroduction year's acreage release report). Historical VIMPreports (excludingcurrent DVD 1990s Victorian Onshore SeismicSections Sections DVD Late 1980sVictorian Onshore Seismic Sections DVD Early 1980sVictorian Onshore Seismic DVD 1970s Victorian Onshore SeismicSections DVD 1960s Victorian Onshore SeismicSections separately inhardcopy atextracost. These documentsare alsousuallyavailable fi production activities,infrastructure and released acreage, industryexplorationand APPEA conferences (provide newson Victorian Supplementsprepared forthe "PESA News"previous issues oftheM&P publications"; "Geoscience Victoria soft-rock Victoria); an overviewofthepetroleum geologyof "Petroleum AtlasofVictoria" (provides fi contained intheGippslandandOtwaybasin elds development,statistics…etc). elds); : Version 4.0a(October2004) cient way by GeoScience cient waybyGeoScience ◆

◆ les VICTORIAN SUPPLEMENT

All reports listed below (with no indicated price) Victoria, Petroleum Development Unit: Collins G., VIMP Report 56 can be downloaded from the Department’s web site Powell, A., 2002. Megallaa, M., Bernecker, T. & Frankel, E. 1998 www.dpi.vic.gov.au/minpet/. These reports are also Hydrocarbon prospectivity of the Northern Geological Survey Report 103. Eastern Otway available free of charge on the Victorian Petroleum Terrace, off shore Gippsland Basin; for the 1998 Basin – The stratigraphy, structure, geophysics Publications DVD that can be order by contacting: and hydrocarbon potential of the Eastern Otway Acreage Release. The Information Centre Basin, Victoria, 1995. Ph: +61 3 9658 4440 Fax: +61 3 9658 4760 VIMP Report 55 E-mail: [email protected] Otway Basin Geochemical Reports: A CD Geary, G. C. & Reid, I. S. A. 1998 contains scanned geochemical reports for the Hydrocarbon prospectivity of the offshore 2004 VIMP REPORTS Otway Basin and also a spreadsheet of geochemistry eastern Otway Basin, Victoria; for the 1998 Acre- from the analysis of well samples. age Release. VIMP Report 83 Bernecker, T. Driscoll, J., Powell, A. & Thomas, H. Otway Basin Published Papers: A CD contains OTHER VIMP REPORTS Hydrocarbon Prospectivity of the 2004 Acreage 68 Otway Basin papers, scanned in PDF Format, Release, Victoria, Australia. previously published in the APPEA Journal, Explo- VIMP Report 54 ration Geophysics and the PESA Journal. Mehin, K. & Bock, M. P. 1998 2003 VIMP REPORTS Gippsland Basin Published Papers: A CD Cretaceous source rocks of the onshore Gippsland VIMP Report 80 contains 154 Gippsland Basin papers, scanned in Basin, Victoria. Thomas, H., Bernecker, T. & Driscoll, J., 2003 PDF Format, previously published in the APPEA VIMP Report 43 Hydrocarbon Prospectivity of Areas V03-3 and Journal, Exploration Geophysics and the PESA Mehin, K. & Link, A. G. 1997 V03-4, Off shore Gippsland Basin, Victoria, Aus- Journal. tralia; 2003 Acreage Release. Late Cretaceous source rocks off shore Otway PREVIOUS VIMP RELEASES Basin, Victoria and South Australia. VIMP Report 79 2001 ACREAGE RELEASE REPORTS Bernecker, T., Thomas, H. & Driscoll, J., 2003 VIMP Report 42 VIMP Report 70 Hydrocarbon Prospectivity of Areas V03-1, V03- Chiupka, J. W., Megallaa, M., Jonasson, K. E., Constantine, A.E. & Liberman, N. 2001 2, 03-1(v), 03-2(v), Off shore Gippsland Basin, & Frankel, E. 1997 Hydrocarbon Prospectivity Package, Eastern Hydrocarbon plays and play fairways of four Victoria, Australia; 2003 Acreage Release. Onshore Otway Basin: VIC/O-01(1), VIC/O-01(2) and VIC/O-01(3); 2001 Acreage Release. vacant off shore Gippsland Basin areas. 2002 VIMP REPORTS VIMP Report 69 VIMP Report 41 VIMP Report 78 Moore, D.H. & Wong, D. 2001 Lavin, C. J. & Muscatello, T. 1997 Moore, D.H., 2002 ISTINGS Eastern and Central Gippsland Basin, The petroleum prospectivity of the Casterton Basement – Basin Relationships in the Otway Basin, Southeastern Australia; Basement Interpretation Petroleum System in the Victorian onshore Otway L Victoria, Australia. and Basin Links. Basin. VIMP Report 74 VIMP Report 68 VIMP Report 31 Bernecker, T., Driscoll, J. & Wong, D. Constantine, A.E., Geary, G.C. & Reid, I.S.A. Mehin, K. & Link, A. G. 1996 Hydrocarbon Prospectivity of Areas V02-2, 2001 Early Cretaceous source rock evaluation for oil and V02-3 and V02-4 in the Gippsland Basin, Victoria, Hydrocarbon Prospectivity of Areas V01-1 to Australia. V01-3, Off shore Western Otway Basin, Victoria, gas exploration, Victorian Otway Basin. EPORTS Australia; 2001 Acreage Release.

VIMP Report 30 R OTHER REPORTS & DIGITAL DATA VIMP Report 67 Chiupka, J. W. 1996 PACKAGES Wong, D. & Bernecker, T. 2001 Hydrocarbon play fairways of the onshore Petroleum Atlas of Victoria, Australia Prospectivity and Hydrocarbon Potential of Area Gippsland Basin, Victoria. Minerals & Petroleum Victoria. V01-4, Central Deep, Gippsland Basin, Victoria, Hard Copy with CD ...... $150 Australia; 2001 Acreage Release. VIMP Report 23 Available only on Victorian Petroleum Parker, G. J. 1995 Publications DVD ...... FREE 2000 ACREAGE RELEASE REPORTS Early Cretaceous stratigraphy along the northern

VIMP Report 66 margin of the Otway Basin. ETROLEUM Onshore Gippsland & Otway Well Completion Constantine, A. E. 2000 VIMP Report 22 Report DVD Package 2002 Hydrocarbon prospectivity of V00-1 and V00-2, (A complete set of open fi le exploration WCR on a Late Cretaceous Voluta Trough, off shore Otway Mehin, K. & Link, A. G. 1995 single DVD) ...... $100 Basin, Victoria, Australia. Early Cretaceous source rocks of the Victorian onshore Otway Basin. Off shore Otway Well Completion Report DVD VIMP Report 65 Package 2002 Smith, M.A., Bernecker, T., Liberman, N., Moore, VIMP Report 21 (A complete set of open fi le exploration WCRs on a D. H. & Wong, D. 2000 Sarma, S. 1995 VIMP P single DVD) ...... $100 Petroleum prospectivity of the deep-water Gazettal Seismic interpretation of the off shore Otway Basin, Areas V00-3 and V00-4, southeastern Gippsland Victoria. Off shore Gippsland Well Completion Basin, Victoria, Australia. Reports DVD Package 2002 VIMP Report 18 (A complete set of open fi le exploration WCRs on 1999 ACREAGE RELEASE REPORTS Lavin, C. J., & Naim, H. 1995 three DVD’s) ...... $100 VIMP Report 62 The structure, stratigraphy and petroleum Mehin, K. & Constantine, A. E. 1999 Victorian Petroleum GIS Data DVD potential of the Portland Trough, Otway Basin, Hydrocarbon potential of the western onshore (2004 Version) ...... $100 Victoria. Otway Basin in Victoria; 1999 Acreage Release. Victorian Biostratigraphic Reports VIMP Report 17 VIMP Report 61 Perincek, D., Simons, B., Pettifer., G. R., & Package (Otway Basin and Gippsland Basin Smith, M. 1999 Gunatillake, K. 1995 CDs) ...... $100 Petroleum systems, play fairways and prospectivity of the off shore southern Gippsland Seismic interpretation of the onshore western Petroleum Victorian Publications 2004 DVD Basin, Victoria; Gazettal Area V99-2. Otway Basin, Victoria. - Includes Oil & Gas Resources of Victoria and VIMP Reports. VIMP Report 60 VIMP Report 16 Messent, B. E., Collins, G. I., & West, B. G. 1999 Knight, L. A., McDonald, P. A., Frankel, E. & Oil and Gas Resources of Victoria. Minerals and Hydrocarbon prospectivity of the Off shore Torquay Moore, D. H. 1995 Petroleum Victoria, Petroleum Development Unit: Sub-basin, Victoria; Gazettal Area V99-1. A preliminary appraisal of the pre-Tertiary infra- Malek, R. & Mehin, K. , 1999. basins beneath the Murray Basin, northwestern 1998 ACREAGE RELEASE REPORTS Gas Resources of the Otway Basin, Minerals Victoria. and Petroleum Victoria, Petroleum Development VIMP Report 57 VIMP Report 15 Unit: Mehin, K. 1999. Lavin, C. J. 1998 Geology and prospectivity of the western Victo- Ryan, S. M., Knight, L. A., & Parker, G. J. 1995 A Guide to the Petroleum Industry in rian Voluta Trough, Otway Basin; for the 1998 The stratigraphy and structure of the Tyrendarra Victoria, 2nd Edition, Minerals and Petroleum Acreage Release. Embayment, Otway Basin, Victoria. ◆

PESA NEWS April/May 2005 19 P ETROLEUM T ITLES VICTORIAN 20 * Permit/Licences Operator EXPIRY DATE TENEMENTHOLDER FIELD RETENTIONLEASES XLRTO EMT BSN TNMN ODR EXPIRY DATE EXPIRY DATE TENEMENTHOLDER TENEMENTHOLDER EXPIRY DATE BASIN FIELD EXPLORATION PERMITS TENEMENTHOLDER RETENTIONLEASES FIELD(S) PRODUCTIONLICENCES ONSHORE TITLES EXPIRY DATE TENEMENTHOLDER EXPIRY DATE BASIN TENEMENTHOLDER EXPLORATION PERMITS FIELD(S) PRODUCTIONLICENCES OFFSHORE TITLES E 6 Mra Kih nutis 08/04/2008 09/07/2007 18/07/2007 13/08/2006 18/08/2006 02/01/2008 16/02/2006 13/11/2005 16/08/2006 15/05/2007 27/08/2005 11/03/2006 02/08/2005 KnightIndustries* Petro Tech*/ AusAmResources MirbooRidgeP/L* 30/09/2005 MirbooRidgeP/L* KnightIndustries* Karoon GasP/L* TMOCExploration*/Origin OriginEnergy Petrol. P/L*EssentialPetroleum 27/09/2017 OriginEnergy Resources*/ BeachPetroleum Petro Tech* OriginEnergy Resources* EssentialPetroleum*/ LakesOil Petro Tech* EssentialPetroleum* Gippsland Murray OriginEnergy Resources*/ BeachPetroleum Otway Otway Gippsland OriginEnergy Resources* Murray OriginEnergy Resources*/ BeachPetroleum Otway OriginEnergy Resources*/ BeachPetroleum Otway 21/03/2006 21/03/2006 OriginEnergy Resources*/ BeachPetroleum OriginEnergy Resources* 27/08/2007 Gippsland OriginEnergy Resources* Otway 27/02/2006 OriginEnergy Resources*/ BeachPetroleum 19/12/2008 PEP 166 13/04/2005 Otway OriginEnergy Resources* Gippsland 29/10/2005 PEP 165 Otway OriginEnergy Resources* PEP 164 Otway BoggyCreek P/L* 13/04/2005 PEP 163 TXUGasStorageP/L* PEP 162 TXUGasStorageP/L* Otway PEP 161 PEP 160 PEP 159 PEP 156,157,158 Otway PEP 155 Otway PEP 154 Otway 19/04/2010 Otway PEP 153 Otway PEP 152 AnzonAustraliaLtd* AnzonAustraliaLtd* Otway PEP 151 Otway BHPBilliton*/Santos(BOL) Santos*/BasinOil Otway 12/10/2010 18/04/2010 Otway BasinOilP/L*/Santos Esso*/BHPBilliton PRL 1 Otway AnzonAustraliaLtd* Otway 27/08/2009 Esso*/AnzonAustraliaLtd/BHPBillitonCrusaderSantos Otway 30/08/2010 PPL 12 Esso*/BHPBilliton PPL 11 PPL 10 PPL 9 26/02/2009 15/10/2009 PPL 8 PPL 7 26/02/2009 15/10/2007 PPL 6 NexusEnergy Aust.NL* 07/04/2009 GoldenBeach Gummy PPL 5 Manta 27/02/2008 PPL 4 LaBella PPL 3 Basker/Manta PPL 2 Sunfish PPL 1 Sole 14/09/2009 ApacheEnergy Ltd* Kipper ApacheNorthwestPtyLtd* Mulloway 13/02/2006 3DOilPtyLtd* NexusEnergy P/L* BasinOilPtyLtd.*/DiamondGasResources /Santos VIC/RL1(v) 27/05/2007 Apache*/NexusEnergy VIC/54P/L VIC/RL10 10/08/2005 15/05/2008 Santos*/InpexAlpha/Unocal CuePetroleum PtyLtd.* VIC/RL9 1/01/2019 Santos*/InpexAlpha Gippsland 13/02/2008 VIC/RL7 VIC/RL6 10/08/2005 VIC/RL4 12/07/2016 12/07/2016 NexusEnergy Aust. 15/12/2006 VIC/RL3 Origin EssentialPetroleum*/Mittwell Energy Resources BassStrait*/EagleBay VIC/RL2 07/02/2011 VIC/RL1 Santos*/MittwellEnergy /PeedamullahPetroleum P/L Petro Gippsland BHPBilliton*/InpexAlpha/MobyOil&Gas Benaris Woodside*/ Origin/BenarisCalEnergy Gippsland 11/05/2009 Origin VIC/P41(v) Otway Gippsland VIC/P40(v) Gippsland Gippsland BassStrait*/InpexIndonesiaPetroleum 28/05/2018 VIC/P39(v) Gippsland BassStrait*/EagleBay VIC/P38(v) Otway Gippsland VIC/P37(v) Otway Gippsland 26/12/2002 19/09/2010 Otway Woodside* /Origin/BenarisIntern.CalEnergy Energy* 13/06/2010 VIC/P61 Otway Otway 24/08/2009 VIC/P60 Gippsland Tech Gippsland Esso*/BHPBilliton P/L* OMVTimor Sea*/Trinity Resources/ BasinOil/Santos VIC/P59 Gippsland Energy*/Woodside 19/04/2010 VIC/P58 Otway VIC/P57 Gippsland Esso*/BHPBilliton Esso*/BHPBilliton VIC/P56 Esso*/BHPBilliton Otway VIC/P55 Otway VIC/P54 Gippsland Essential VIC/P53 Gippsland VIC/P52 VIC/P51 Geographe VIC/P50 Otway P/L* 16/04/2009 Esso*/BHPBilliton VIC/P49 Energy* VIC/P47 16/09/2008 PatriciaBaleen VIC/P46 Blackback Esso*/BHPBilliton VIC/P45 West Fortescue Esso*/BHPBilliton VIC/P44 Esso*/BHPBilliton VIC/P43 VIC/P42 Petroleum* Tuna VIC/P41 Bream SnapperandFlounder BHP Dolphin,PerchVIC/L23 andSeahorse VIC/L22 Minerva HalibutandKingfish VIC/L21 BarracoutaandMarlin VIC/L20 VIC/L19 VIC/L15, L16,L17,L18 VIC/L13, L14 VIC/L10, L11 VIC/L9 Billiton/Santos* VIC/L5, L6,L7,L8 VIC/L1, L2,L3,L4 31/10/2023 PESA NEWS

April/May 2005 SUPPLEMENT Southern Energy P/L 07/02/2011 28/10/2010 Southern Energy P/L Exoil Ltd*,GascorpAustraliaLtd,OtwayOilandGasP/L, Robert Thorpe,ElySakhai Australian-Canadian OilRoyaltiesLtd*,HollomanCorporation, VIC/P41 VIC/RL3 VIC/P49 VIC/ RL10 VIC/ RL6 VIC/ P55 VIC/ RL2 VIC/ RL9 Marine Special Management Area & Aquaculture Zone Current Permits Production Licences Retention Leases 2004 Acreage Release Onshore Permits due toand be Offshore Surrendered Permits dueRelinquished to on be Renewal 50% in 2005 Marine National Park Marine Sanctuary Gas Pipeline Oil & Other Pipeline Proposed Pipeline Gas Field Oil Field Digital Terrain Model Image, NE Sun Angle VIC/L20 VIC/P56 VIC/L11 VIC/P47 VIC/P59 VIC/L21 VIC/L9 VIC/L6 Data Source Geoscience Australia and GeoScience Victoria VIC/P60 VIC/L5

Orbost VIC/P40(v) VIC/ RL4 VIC/ L19 VIC/ P54 VIC/L7 VIC/L8 VIC/P45 VIC/L3 VIC/L4 PEP155 VIC/L10 VIC/P57 VIC/P53 VIC/L2 VIC/L14 VIC/L13 VIC/L18 VIC/P42

VIC/L1

VIC/P39(v) ) VIC/L16

VIC/ RL1

1(v

L

/R VIC VIC/ L15 VIC/ L17 PEP156 GIPPSLAND BASIN Sale Maffra Wodonga VIC/P58 PEP157 Longford PEP158 Chiltern Wangaratta PEP166 Benalla PEP161 Cobram PEP162 Tasmania Euroa Victoria Wales Shepparton New South Queensland Seymour South Australia Territory Northern Echuca February 2005 Western Australia Melbourne Victoria Tasmania st Bendigo Lara PEP163 V04-2 March 31 2005 PIPELINES AND PERMITS Geelong Carisbrook (Closed ) Swan Hill Ballarat

PEP164 VIC/P38v) Ararat VIC/P43 T/L2 PEP153 Cobden VIC/L23 VIC/ L22 PEP165 VIC/ RL7 (b) PEP154(a) VIC/P37(v) OTWAY BASIN PEP159 VIC/P44 Horsham VIC/P61 100 PEP152 Mildura Hamilton VIC/P52 VIC/P51 Portland PEP150 km G.R.S. 1980 SPHEROID Mapsheet datum: "GDA94" MURRAY BASIN LAMBERT CONFORMAL CONIC PROJECTION

VIC/P41(v) PARALLELS 36°S AND 38°S, CENTRAL MERIDIAN 145°E PEP151 PEP160 0 VIC/P50 VIC/P46 Explore Victoria

Potential for more discoveries. A hub for refi neries & industries. Connected to interstate gas markets.

Photo courtesy of Santos Ltd

The Minerals and Petroleum Division of the Department of Primary Industries can assist your exploration endeavours by providing independent regional geological assessment of vacant acreage, and by simplifying procedures to bid for exploration permits.

The exploration data and information can be provided on DVDs and CDs.

For further information visit our website: www.dpi.vic.gov.au/minpet/

GeoScience Victoria Minerals & Petroleum Division, Department of Primary Industries Level 16, 1 Spring Street, GPO Box 4440, Melbourne Victoria 3001 Australia Phone: 136186 Email: [email protected] - www.dpi.vic.gov.au/minpet