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

Accumulation Number: 40LESUEURORIGINAL OPERATOR:Australian Aquitaine PetroleumTYPE:GasSTATUS:Other DiscoveryLOCATION:340 km southwest of DarwinSTATE:Western AustraliaORIGINAL TITLE(S):WA-18-PBASIN:BonaparteSUB-BASIN:Petrel Sub-basinDISCOVERY WELL:Lesueur-1Longitude (E): 128.1256Latitude (S): -13.9526Date total depth reached: 22 AUG 80Water Depth:58 mKelly bushing:25.5 mOperator:Australian Aquitaine PetroleumTotal Depth:3,589 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Large anticlinal closure associated with a basinmargin fault.AREAL CLOSURE: 135 km 2VERTICAL CLOSURE:770 mRESERVOIR UNITS: 2PETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):GROSS HYDROCARBON COLUMN: 95 m (3,095-3,190 m)60 m (3,324-3,384)HYDROCARBON SATURATION: 60% (3,095-3,190 m)50% (3,324-3,384)POROSITY: Less than 5%PERMEABILITY:Up to 105 mDWeaber GroupGasTanmurra FormationCarboniferous (Visean to Namurian)Sandstone, fine to medium grained, medium brown, hard,calcareous and tight, interbedded with medium brown,finely crystalline, dolomitic, moderately hard limestone.Prograding shelf sequence.3,057 mPETROLEUM BEARING UNIT No.2:CONTENTS:FORMATION:AGE:LITHOLOGY:DEPOSITIONAL ENVIRONMENT:FORMATION TOP (mKB):RESERVOIR PRESSURE:POROSITY:PERMEABILITY:Weaber GroupGasMilligans FormationCarboniferous (Visean to Namurian)Sandstone, light grey to pink-brown, medium grained,poorly sorted, hard and friable, interbedded with siltyshale and calcareous siltstone.Pro-delta to moderately deep water.3,384 m5000 psi (extrapolated pressure at 3,385 mKB)19% (average log porosity)Up to 3 mD