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

Accumulation Number: 34KAKATUA NORTHORIGINAL OPERATOR:BHP Petroleum Pty LtdTYPE:OilSTATUS:ProducerLOCATION:512 km northwest of DarwinSTATE: Zone of Cooperation, Part A.ORIGINAL TITLE(S): ZOCA 91-12BASIN:BonaparteSUB-BASIN:Flamingo HighDISCOVERY WELL:Kakatua North-1ALongitude (E): 126.4682Latitude (S): -10.8444Date total depth reached: 12 FEB 97Water Depth:94 mKelly bushing:25 mOperator:BHP Petroleum Pty LtdTotal Depth:3,300 mKBNUMBER OF WELLS DRILLED: 2 (includes 1 redrill)STRUCTURE/TRAP:Separate fault dependent closure 2 km north of theKakatua oil discovery.OIL GRAVITY:55 o APIGROSS HYDROCARBON COLUMN: 69.4 m (3,131.6 – 3,201 mRT)NET PAY:26.4 mHYDROCARBON SATURATION: 75.4%OIL/WATER CONTACT:3,176 mSS (free-water level)PETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP:POROSITY:Flamingo GroupOilElang FormationJurassicInterbedded sandstone, siltstone and claystone. Sandstone:fine to very fine, occasionally medium to coarse, variablesiliceous cement, common quartz overgrowths, laminatedand cross-bedded in part, coarsening upwards.Interdeltaic barrier beach complex.3,106.5 mTVDSS12.6% (average log porosity)TEST DATA FROM THE DISCOVERY WELL (Kakatua North-1A):RFT, 3,158.5 m,Recovered 12.9 litres of 55 o API oil and60.8 ft 3 of gas.Elang Formation