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

Accumulation Number: 27FLAT TOPORIGINAL OPERATOR:Australia Aquitaine Petroleum LtdTYPE:GasSTATUS:Other DiscoveryLOCATION:170 km west of DarwinSTATE:Northern TerritoryORIGINAL TITLE(S):NT/P17BASIN:BonaparteSUB-BASIN:Petrel Sub-basinDISCOVERY WELL:Flat Top-1Longitude (E): 129.2655Latitude (S): -12.3765Date total depth reached: 26 JAN 70Water Depth:41 mKelly bushing:12.2 mOperator:Australia Aquitaine Petroleum LtdTotal Depth:2,174 mKBNUMBER OF WELLS DRILLED: 1STRUCTURE/TRAP:RESERVOIR UNITS: 1BOTTOM HOLE TEMPERATURE: 105 o CDrilled to test for the presence of stratigraphic pinchoutsand erosional wedges on the northern edge of the PetrelSub-basin.PETROLEUM BEARING UNIT No.1: Hyland Bay FormationCONTENTS:GasFORMATION: Cape Hay Member ?AGE:PermianLITHOLOGY:Sandstone, very fine to coarse, friable, interbedded withtight, micritic and bioclastic limestone and dark grey toblack, pyritic and lignitic shale. Limestone forms threemassive beds (1,304-1326 m, 1,417-1,453 m and 1,553-1,578 m)DEPOSITIONAL ENVIRONMENT: Deltaic to marginal marineFORMATION TOP (mKB): 1,277 mKB (Cape Hay Member ?)POROSITY:22-30% (log porosity)PERMEABILITY:around 160 mDTEST DATA FROM THE DISCOVERY WELL (Flat Top-1):RFT 3, 1,082 m,Recovered 19 litres of formation waterand 750 cc of drilling mud.RFT 1, 1,473 m,Recovered 0.001 m 3 of gas and 20 litresof drilling mud.RFT 4, 1,473 m,Recovered 0.01 m 3 of gas, 16.5 litres offormation water and 3.5 litres of drillingmud.Hyland Bay FormationHyland Bay FormationHyland Bay Formation