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

Accumulation Number: 33KAKATUAORIGINAL OPERATOR:BHP Petroleum Pty LtdTYPE:OilSTATUS:ProducerLOCATION:510 km northwest of DarwinSTATE:Zone of Cooperation, Part AORIGINAL TITLE(S): ZOCA 91-12BASIN:BonaparteSUB-BASIN:Flamingo HighDISCOVERY WELL:Kakatua-1Longitude (E): 126.4699Latitude (S): -10.8542Date total depth reached: 08 DEC 94Water Depth:94 mKelly bushing:22 mOperator:BHP Petroleum Pty LtdTotal Depth:3,290 mKBNUMBER OF WELLS DRILLED: 1 (not including Kakatua North-1 and 1A)STRUCTURE/TRAP:Fault dependent closure.VERTICAL CLOSURE:87 mRESERVOIR UNITS:Multiple sands.OIL GRAVITY:53 o APIPETROLEUM BEARING UNIT No.1: Flamingo GroupCONTENTS:OilFORMATION:Elang FormationAGE:Middle JurassicGROSS HYDROCARBON COLUMN: 29 m (3,160 – 3,189 mRT)NET PAY:23.2 mNET TO GROSS RATIO: 80%HYDROCARBON SATURATION: 79.3%GAS TO OIL RATIO:220 scf/stb (MDT, 3,177.8 mRT)150 scf/stb (MDT, 3,162 mRT)178 scf/stb (Cased DST, 3,160 -3,184 mRT)OIL/WATER CONTACT:3,167 mSS (MDT data)POROSITY:11.9% (average log porosity)PERMEABILITY:200 mD (MSCT cores)4 - 15 mD (drawdown mobility)TEST DATA FROM THE DISCOVERY WELL (Kakatua-1):MDT, 3,162 m,Recovered 3.5 litres of brown, 53.5 o APIOil, 3.2 ft 3 of gas and 0.2 litres of filtrate/water from the 2.75 gallon chamber.MDT, 3,177.8 m,Recovered 1.6 litres of 52.7 o API, brownoil, 2.2 ft 3 of gas and 1.7 litres of filtrate/water from the 1 gallon chamber.Elang FormationElang FormationDST (CASED), 3,160-3,184 m,Elang FormationFlowed 53 o API oil at 8,100 bbls/daythrough a 23 mm choke. Perforated overthe intervals 3,160-3,163 m and 3,169-3,184 m.