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

Accumulation Number: 28FOHNORIGINAL OPERATOR:Phillips Australia Oil Company LtdTYPE:GasSTATUS:Other DiscoveryLOCATION:430 km northwest of DarwinSTATE:Zone of Cooperation, Part AORIGINAL TITLE(S): ZOCA 91-13BASIN:BonaparteSUB-BASIN:Flamingo SynclineDISCOVERY WELL:Fohn-1Longitude (E): 127.1455Latitude (S): -11.0033Date total depth reached: 06 AUG 94Water Depth:83 mKelly bushing:22 mOperator:Phillips Australia Oil Company LtdTotal Depth:1,440 mKB (main well)3,814 mKB (sidetrack. Kick-off at 1,359 mKB)NUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Tilted fault block with some internal 4-way-dip closure.AREAL CLOSURE: 12 km 2VERTICAL CLOSURE:160 m (At Base Valanginian)RESERVOIR UNITS: 1GROSS HYDROCARBON COLUMN: 218 m (3,565 – 3,783 mKB)NET PAY:82 mNET TO GROSS RATIO: 38%HYDROCARBON SATURATION: 50%PETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):POROSITY:PERMEABILITY:Troughton GroupGasPlover FormationJurassicSandstone, very light grey, very fine to medium grained,well sorted, subangular to subrounded, 5 – 20% silicacement, interbedded with claystone and siltstone.Fluvio-deltaic to marginal marine3,512.0 m8% (average log porosity)0.01 – 0.13 mD (core data)TEST DATA FROM THE DISCOVERY WELL (Fohn-1):MDT, 3,579.5 mUnspecified quantity of gas recoveredusing MDT tool.Plover Formation