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

Accumulation Number: 58SUNSETORIGINAL OPERATOR:Shell Development (PSC 19) Pty LtdTYPE:GasSTATUS:Possible Future ProducerLOCATION:440 km northwest of DarwinSTATE:Zone of Cooperation, Part AORIGINAL TITLE(S): ZOCA 95-19BASIN:BonaparteSUB-BASIN:Sahul PlatformDISCOVERY WELL:Sunset-1Longitude (E): 127.9763Latitude (S): -9.6434Date total depth reached: 13 OCT 97Water Depth:238.5 mKelly bushing:25 mOperator:Shell Development (PSC 19) Pty LtdTotal Depth:2,420 mKBNUMBER OF WELLS DRILLED: 2STRUCTURE/TRAP:Fault dependent closure on the same horst block as theSunrise accumulation to the east.RESERVOIR UNITS: 1PETROLEUM BEARING UNIT No.1: Troughton GroupCONTENTS:GasFORMATION:Plover FormationAGE:Pliensbachian to CallovianLITHOLOGY:Sandstone interbedded with shales and argillaceoussandstones.DEPOSITIONAL ENVIRONMENT: Marginal marine to fluvio deltaic.GROSS HYDROCARBON COLUMN: 96 mNET PAY:34.7 mNET TO GROSS RATIO: 36%HYDROCARBON SATURATION: 71%GAS/WATER CONTACT:2,251 mRT (free water level from pressure data)POROSITY:16-17% (average log porosity)PERMEABILITY:variable (2-207 mD)TEST DATA FROM THE DISCOVERY WELL (Sunset-1):DST,Flowed gas at 673,900 m 3 /day andcondensate at 750 bbls/day through a15.9 mm choke.DST 2, 2,195.5-2,155 m,Flowed gas at 906,100 m 3 /day andcondensate at 28 bbls/day through a28.5 mm choke.DST 1, 2,223-2,241 m,Flowed gas at 124,940 m 3 /day andcondensate at 1,500 bbls/day through a31.8 mm choke.Plover FormationPlover FormationPlover Formation