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

Accumulation Number: 18CURLEWORIGINAL OPERATOR:Arco Australia LtdTYPE:GasSTATUS:Other DiscoveryLOCATION:290 km west-northwest of DarwinSTATE:Northern Territory/Commonwealth GovernmentORIGINAL TITLE(S):NT/P3BASIN:BonaparteSUB-BASIN:Petrel Sub-basinDISCOVERY WELL:Curlew-1Longitude (E): 128.2639Latitude (S): -11.7706Date total depth reached: 13 JAN 75Water Depth:77 mKelly bushing:25 mOperator:Arco Australia LtdTotal Depth:2,035 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:Domal feature structurally controlled by a deep seatedpiercement salt dome.AREAL CLOSURE: 100 km 2VERTICAL CLOSURE:Up to 400 mRESERVOIR UNITS: 2BOTTOM HOLE TEMPERATURE: 88 o CPETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:FORMATION TOP (mKB):POROSITY:PETROLEUM BEARING UNIT No.2:CONTENTS:FORMATION:AGE:LITHOLOGY:FORMATION TOP (mKB):POROSITY:Bathurst Island GroupGasBathurst Island GroupCretaceousSandstone, very fine grained, dolomitic, occasionallyargillaceous with common pyrite and occasionalglauconite.338.9 mUp to 38% (log porosity)Flamingo GroupGasFlamingo GroupLate JurassicSandstone, medium grained, subrounded to rounded,partially cemented by silica overgrowths, occasionalargillaceous matrix, interbedded with siltstone and shale1,725.1 m13% to 19% (log porosity)