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

Accumulation Number: 48PADTHAWAYORIGINAL OPERATOR:TYPE:STATUS:LOCATION:STATE:ORIGINAL TITLE(S):BASIN:SUB-BASIN:DISCOVERY WELL:Longitude (E): 124.5017Latitude (S): -12.6807Date total depth reached: 09 APRIL 00Water Depth:88 mKelly bushing:25 mOperator:BHP Petroleum Pty LtdTotal Depth:2,875 mRTNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Tilted fault blockRESERVOIR UNITS: 1GROSS HYDROCARBON COLUMN: 9 m (2,585-2,594 mRT)GAS/WATER CONTACT:2,569 mSSGAS/CONDENSATE RATIO: 30.1 bbl/MMscfHYDROCARBON SATURATION: 96% (average)BHP Petroleum Pty LtdGasOther Discovery680 km west of DarwinTerritory of Ashmore and Cartier Islands Adjacent Area(Northern Territory)AC/RL3BonaparteVulcan Sub-basinPadthaway-1PETROLEUM BEARING UNIT No.1: Troughton GroupCONTENTS:GasFORMATION:Montara FormationAGE:OxfordianLITHOLOGY:Sandstone: medium grey to olive grey, firm, friable, fineto coarse grained with angular to sub-rounded,moderately spherical, poorly sorted. Minor to locallyabundant silty argillaceous matrix, trace of silicieouscement, trace lithic fragments, trace of glauconite withpoor to fair visual porosity.DEPOSITIONAL ENVIRONMENT: Fluvial dominated deltaic deposit.FORMATION TOP (mKB):2,585 mPOROSITY:25% (average log porosity)PERMEABILITY:8,000 mD (average from logs)TEST DATA FROM THE DISCOVERY WELL (Padthaway-1):MDT, Run1, 2,609 mRecovered 10.5 litres of formationwater and filtrate from the 2.75 gallonchamber.Montara Formation