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

Accumulation Number: 54RAMBLERORIGINAL OPERATOR:SAGASCO ResourcesTYPE:Oil and GasSTATUS:Other DiscoveryLOCATION:500 km west-northwest of DarwinSTATE:Western AustraliaORIGINAL TITLE(S):WA-224-PBASIN:BonaparteSUB-BASIN:Londonderry HighDISCOVERY WELL:Rambler-1Longitude (E): 126.3716Latitude (S): -11.5205Date total depth reached: 30 DEC 93Water Depth:112 mKelly bushing:23 mOperator:SAGASCO ResourcesTotal Depth:3,709 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Tilted, Mesozoic fault block on the western flank of theSahul Syncline.RESERVOIR UNITS: 2BOTTOM HOLE TEMPERATURE: 152 o C (after 3 hours circulation)PETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):POROSITY:Flamingo GroupOil and GasFlamingo GroupEarly JurassicGrey to olive-grey, calcareous claystone, very silty tosandy in part, interbedded with grey and brown clayeysiltstone.Moderately deep water, marine.2,774 mLow permeability fracture porosity.PETROLEUM BEARING UNIT No.2: Troughton GroupCONTENTS:Gas (inferred from logs only)FORMATION:Plover FormationAGE:JurassicDEPOSITIONAL ENVIRONMENT: Fluvio-deltaic to marginal marine.FORMATION TOP (mKB):3,595 mPOROSITY:10.6% (average log porosity)GROSS HYDROCARBON COLUMN: 85 m (3,597-3,682 mKB, inferred from logs)NET PAY:6.2 mNET TO GROSS RATIO: 7.3%HYDROCARBON SATURATION: 66%GAS/WATER CONTACT:3,682 mKB (from logs)