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

Accumulation Number: 61TALBOTORIGINAL OPERATOR:TYPE:STATUS:LOCATION:STATE:ORIGINAL TITLE(S):BASIN:SUB-BASIN:DISCOVERY WELL:Longitude (E): 124.8816Latitude (S): -12.4532Date total depth reached: 28 NOV 89Santos LtdOil and GasPossible Future Producer650 km west of DarwinTerritory of Ashmore and Cartier Islands Adjacent Area(Northern Territory)AC/P12BonaparteVulcan Sub-basinTalbot-1Water Depth:104 mKelly bushing:11 mOperator:Santos LtdTotal Depth:1,784 mKBNUMBER OF WELLS DRILLED: 2STRUCTURE/TRAP:Northeast-southwest trending horst blockAREAL CLOSURE:3.5 km 2 (at oil/water contact)VERTICAL CLOSURE:80 mRESERVOIR UNITS: 1OIL/WATER CONTACT:1,530.7 mSSGAS/OIL CONTACT:1,497.5 mSSGROSS HYDROCARBON COLUMN: 34 m (1,508-1,542 mKB)NET PAY:15.7 mNET TO GROSS RATIO: 46%OIL GRAVITY:49 o APIWATER SATURATION:30% (average)GAS TO OIL RATIO:742 scf/stbFVF (B o ): 1.448BOTTOM HOLE TEMPERATURE: 80 o C @ 1,780 mPETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):POROSITY:Troughton GroupOil and GasChallis FormationLate Triassic (Carnian)Sandstone, silty, fine grained with interbedded ferroandolomites, dolomitic siltstones and minor thin, finegrained, clean sandstones.Estuarine and tidal channel sands.1,507 m18.7% (average)TEST DATA FROM THE DISCOVERY WELL (Talbot-1):DST 1, 1,505-1,540 m,Flowed oil at 5,000 bbls/day and gas at104,200 m 3 /day through a 25.4 mm choke.Challis Formation