COMPOSITIONAL DATA : GAS : GAS PROPERTIES Puffin Fm RFT ...

Accumualtion Number: 31JABIRUORIGINAL OPERATOR:TYPE:STATUS:LOCATION:STATE:ORIGINAL TITLE(S):BASIN:SUB-BASIN:DISCOVERY WELL:Longitude (E): 125.0041Latitude (S): -11.9336Date total depth reached: 29 SEP 83Water Depth:Kelly bushing:Operator:Total Depth:NUMBER OF WELLS DRILLED:STRUCTURE/TRAP:BHP Petroleum Pty LtdOilProducer640 km west of DarwinTerritory of Ashmore and Cartier Islands Adjacent Area(Northern Territory)NT/P26BonaparteVulcan Sub-basinJabiru-1A120 m30 mBHP Petroleum Pty Ltd3,225 mKB23 (includes 3 redrills, 7 sidetracks and 1 deviated well)Fault dependent. Eroded and tilted Jurassic fault block onthe Jabiru-Turnstone Horst.AREAL CLOSURE: 30 km 2VERTICAL CLOSURE:35 mRESERVOIR UNITS: 1OIL/WATER CONTACT:1,623 mSSGAS/OIL RATIO:449 scf/stbGROSS HYDROCARBON COLUMN: 103 mNET TO GROSS RATIO: 95%HYDROCARBON SATURATION: 85% (Flamingo Group)91% (Plover Formation)OIL GRAVITY:42.5 o APIBUBBLE POINT PRESSURE: 2,106 psig @ 72 o CRESERVOIR PRESSURE:2,382.2 psia (Jabiru-1A, prior to production)BOTTOM HOLE TEMPERATURE: 102 o C (Jabiru-1A)PETROLEUM BEARING UNIT No.1: Flamingo Group/Troughton GroupCONTENTS:OilFORMATION:Flamingo Group/Plover FormationAGE:Middle to Late JurassicLITHOLOGY:Flamingo Gp: very fine to fine grained, argillaceoussandstone.Plover Fm: medium to coarse grained, moderately to wellsorted quartz arenite.DEPOSITIONAL ENVIRONMENT: Flamingo Gp: shallow marine to upper shoreface orstrandline depositsPlover Fm: crossbedded coastal sand body deposited in abeach or barrier island environment.FORMATION TOP (mKB):1,594 m (Flamingo Gp)POROSITY: Flamingo Gp: 12% to 23%Plover Fm: 21% (average)PERMEABILITY:Flamingo Gp: 30-2,000 mDPlover Fm: 600-10,000 mD