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

Accumulation Number: 37KRILLORIGINAL OPERATOR:BHP Petroleum Pty LtdTYPE:Oil and GasSTATUS:Other DiscoveryLOCATION:540 km northwest of DarwinSTATE:Zone of Cooperation, Part AORIGINAL TITLE(S): ZOCA 91-01BASIN:BonaparteSUB-BASIN:Flamingo HighDISCOVERY WELL:Krill-1Longitude (E): 126.2022Latitude (S): -10.7513Date total depth reached: 19 JUL 97Water Depth:268 mOperator:BHP Petroleum Pty LtdTotal Depth:3,640 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Tilted fault blockRESERVOIR UNITS: 1OIL GRAVITY:56 o APIGAS/OIL RATIO:229 scf/stbFREE WATER LEVEL:3,388 mTVDSSBOTTOM HOLE TEMPERATURE: 140.5 o C at 3,646 mRT (3,568 mTVDSS)PETROLEUM BEARING UNIT No.1: Troughton GroupCONTENTS:Oil and GasFORMATION:Elang FormationSEAL:Flamingo Fm silstones and claystonesAGE:Late JurassicLITHOLOGY:Sandstone with interbedded claystones. Sandstone: fine tomedium grained, angular to subrounded, well sorted,quartzose with abundant siliceous cement and quartzovergrowths. Claystone: brownish-grey, hard and blocky.DEPOSITIONAL ENVIRONMENT: Storm and wave influenced proximal delta frontsandstones.GROSS HYDROCARBON COLUMN: 17.2 m (3,476.5 – 3,493.7 mRT)NET PAY:4.27 mPOROSITY: 9.1%PERMEABILITY:< 300 mDHYDROCARBON SATURATION: 50.6%TEST DATA FROM THE DISCOVERY WELL (Krill-1):MDT, 3,485 m,Recovered 18 litres of 56 o API oil and25.9 cubic feet of gas.MDT, 3,539 m,Recovered 1.17 cubic feet of gas and9.2 litres of filtrate/water.Elang FormationElang Formation