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

Accumulation Number: 53PUFFINORIGINAL OPERATOR:TYPE:STATUS:LOCATION:STATE:ORIGINAL TITLE(S):BASIN:SUB-BASIN:DISCOVERY WELL:Longitude (E): 124.3336Latitude (S): -12.3083Date total depth reached: 08 JUN 72Arco Australia LtdOilOther Discovery710 km west of DarwinTerritory of Ashmore and Cartier Islands Adjacent Area(Northern Territory)NT/P2BonaparteVulcan Sub-basinPuffin-1Water Depth:102 mKelly bushing:34 mOperator:Arco Australia LtdTotal Depth:2,961 mKBNUMBER OF WELLS DRILLED: 4STRUCTURE/TRAP:Northeast-southwest trending horst block.VERTICAL CLOSURE:183 m (near base Tertiary)366 m (near base Cretaceous)RESERVOIR UNITS: 1GROSS HYDROCARBON COLUMN: 1.5 m (2,066 – 2,067.5 mKB)OIL/WATER CONTACT:2,075 mSS (Puffin-4); 2,077 mSS (Puffin-3)OIL GRAVITY:45 o APIBOTTOM HOLE TEMPERATURE: 90 o CPETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:FORMATION TOP (mKB):POROSITY:PERMEABILITY:Bathurst Island GroupOilPuffin FormationLate CretaceousSandstone, light grey, fine to coarse grained, quartzose,slightly glauconitic and friable, occasionally calcareousand argillaceous.1,999.5 m16 - 30% (log porosity))21 – 3,870 mD (RFT data, Puffin-4)TEST DATA FROM THE DISCOVERY WELL (Puffin-1):RFT 1, 2,067 m,Recovered 20.15 litres of 45 o API oil,0.69 m 3 of gas and 25 cc of sand.RFT 2, 2,071 m,Recovered 22 litres of formation water.RFT 4, 2,162 m,Recovered 22 litres of formation water.RFT 3, 2,214 m,Recovered 21.5 litres of formation water.Puffin FormationPuffin FormationPuffin FormationPuffin Formation