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

Accumulation Number: 50PENGUINORIGINAL OPERATOR:Arco Australia LtdTYPE:GasSTATUS:Other DiscoveryLOCATION:290 km southwest of DarwinSTATE:Western AustraliaORIGINAL TITLE(S):WA-17-PBASIN:BonaparteSUB-BASIN:Petrel Sub-basinDISCOVERY WELL:Penguin-1Longitude (E): 128.4683Latitude (S): -13.6078Date total depth reached: 29 JUL 72Water Depth:69 mKelly bushing:34.4 mOperator:Arco Australia LtdTotal Depth:2,757 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:North-northwest/south-southeast trending asymmetricalanticline.AREAL CLOSURE: 26 km 2VERTICAL CLOSURE:88 m (near base of Upper Permian)RESERVOIR UNITS: 1GROSS HYDROCARBON COLUMN: 9.8 m (2,534.1-2,543.9 m)NET PAY:8.5 mNET TO GROSS RATIO: 87%BOTTOM HOLE TEMPERATURE: 93 o CPETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:FORMATION TOP (mKB):POROSITY:PERMEABILITY:Kinmore GroupGasHyland Bay FormationLate PermianSandstone, quartzose, light grey, fine to medium grained,subangular to subrounded, moderately well sorted, friable,very calcareous, micaceous, lignitic and pyritic in part,interbedded with silty shales and siltstones.2,098 m11% to 23% (core data)Less than 0.1 to 18 mD (core data)TEST DATA FROM THE DISCOVERY WELL (Penguin-1):RFT 1, 2,101.6 m,Seal failure. Recovered 22 litres of mud.RFT 2, 2,107 m,Recovered 8.2 litres of watery mud.RFT 3, 2,535 m,Seal failure.Hyland Bay FormationHyland Bay FormationHyland Bay Formation