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

Accumulation Number: 56SKUAORIGINAL OPERATOR:TYPE:STATUS:LOCATION:STATE:ORIGINAL TITLE(S):BASIN:SUB-BASIN:DISCOVERY WELL:Longitude (E): 124.4043Latitude (S): -12.5095Date total depth reached: 26 DEC 85BHP Petroleum Pty LtdOil and GasPast Producer700 km west of DarwinTerritory of Ashmore and Cartier Islands Adjacent Area(Northern Territory)NT/P2BonaparteVulcan Sub-basinSkua-2Water Depth:81.7 mKelly bushing:8 mOperator:BHP Petroleum Pty LtdTotal Depth:2,600 mKBNUMBER OF WELLS DRILLED: 10 (including one redrill)STRUCTURE/TRAP:Fault dependent. Tilted horst block.AREAL CLOSURE: 4.5 km 2VERTICAL CLOSURE:74.5 m (above oil/water contact)RESERVOIR UNITS:1 (7 correlatable flow units)GROSS HYDROCARBON COLUMN: 74.5 mNET TO GROSS RATIO: 50%GAS COLUMN:28 mOIL COLUMN:46.5 mGAS/OIL CONTACT:2,286.5 mSSOIL/WATER CONTACT:2,333 mSSGAS TO OIL RATIO:900 scf/stbWATER SATURATION: 12-25% (most likely value of 18%)INITIAL RESERVOIR PRESSURE: 3,315 psia at the gas/oil contact3,356 psia at the oil/water contactRESERVOIR TEMPERATURE: 96 o C (at the gas/oil contact)FORMATION VOLUME FACTOR: 1.48DRIVE:Water drivePETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):POROSITY:PERMEABILITY:Troughton GroupOil and GasPlover FormationEarly to Middle JurassicSandstone, fine to medium grained, subangular tosubrounded, well sorted, minor silica and calcite cement,occassionally argillaceous, interbedded andinterlaminated with dark brown/ black claystone, siltyclaystone and common coal laminae.Fluvial, braided stream environment at the base of thereservoir sequence, grading upwards into deltaic andmarginal marine units.2,338 m21-22% (average)360-1,700 mD