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

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Accumulation Number: 68WEABERORIGINAL OPERATOR:Australian Aquitaine PetroleumTYPE:GasSTATUS:Possible Future ProducerLOCATION:370 km southwest of DarwinSTATE:Northern TerritoryORIGINAL TITLE(S): OP 186BASIN:BonaparteSUB-BASIN:Petrel Sub-basinDISCOVERY WELL:Weaber-1 (‘Enga Sandstone’ gas pool)Longitude (E): 129.1296Latitude (S): -15.3539Date total depth reached: 16 OCT 82Kelly bushing:6 mOperator:Australian Aquitaine PetroleumTotal Depth:1950 mKBDISCOVERY WELL:Weaber-2A (Milligans Formation gas pool)Longitude (E): 129.1082Latitude (S): -15.3476Date total depth reached: 05 SEP 88Ground Level:12 mKelly bushing:17.7 mOperator:Santos LtdTotal Depth:1,657 mKBNUMBER OF WELLS DRILLED: 5 (including Weaber-2A)STRUCTURE/TRAP:RESERVOIR UNITS: 2BOTTOM HOLE TEMPERATURE: 91 o C (Weaber-2A)Anticlinal structure formed by drape and compaction ofEarly Carboniferous Upper Burt Range Formation andWeaber Group sediments over a pre-existingpalaeotopographic high (Ningbing Group and Lower BurtRange Formation).PETROLEUM BEARING UNIT No.1:CONTENTS:FORMATION:AGE:LITHOLOGY:FORMATION TOP (mSS):Weaber Group (Weaber-2A)GasMilligans FormationEarly Carboniferous (Late Tournasian)Sandstone, off-white to white, very fine grained,moderately well to well sorted, subangular to subround,common calcareous or dolomitic cement with occasionalargillaceous or silty matrix. Poor visual porosity.Interbedded with siltstones and shales.506 m
PETROLEUM BEARING UNIT No.2: Langfield Group (Weaber-1)CONTENTS:GasFORMATION:Enga SandstoneAGE:Early Carboniferous (Mid Tournasian)LITHOLOGY:‘13.0 Sand’ : Off-white to pale yellow-brown, very finegrained, subangular to subrounded with calcareouscement. Poor visual porosity.‘14.0 Sand’ : Sandstone, predominantly off-white towhite, very fine to medium grained, angular tosubrounded, poorly sorted with dolomitic and calcareouscement and occasional silty matrix, interbedded withsiltstone.DEPOSITIONAL ENVIRONMENT: Shallow marine, shoreface environment.NET PAY:‘13.0 Sand’ : 1.5 m‘14.0 Sand’ : 15 mGROSS PAY:‘14.0 Sand’ : 18 mNET TO GROSS RATIO: ‘14.0 Sand’ : 83%WATER SATURATION:‘13.0 Sand’ : 35.6% (average from logs)‘14.0 Sand’ : 23.6% (average from logs)POROSITY:‘13.0 Sand’ : 9.9% (average from logs)‘14.0 Sand’ : 10.3% (average from logs)TEST <strong>DATA</strong> FROM THE DISCOVERY WELL (Weaber-1):DST 1, 1,281-1,313 m,Flowed gas at 56,600 m 3 /day througha 12.7 mm choke.DST 4, 1,273-1,421 m,Flowed gas at 127,420 m 3 /day througha 12.7 mm choke.Enga Sandstone’(‘13.0 Sand’)Enga Sandstone (‘13.0’ and ‘14.0 Sands’)TEST <strong>DATA</strong> FROM THE DISCOVERY WELL (Weaber-2A):DST 1, 1,016-1,044 m,Gas to surface at a rate too small tomeasure in 76 minutes. Recovered 17.7 mof rathole mud.DST 2, 1,020-1,037 m,Flowed gas to surface in 14 minutes at3,790 m 3 /day through a 12.7 mm choke.Recovered 1.4 bbls of slightly gas cutmud.Milligans FormationMilligans FormationAPPRAISAL AND DEVELOPMENT DRILLING :Weaber-2 was plugged and abandoned at 445 mKB due to severe hole problems. The well was redrilledas Weaber-2A.Weaber-2A flowed gas from the Milligans Formation. This gas sand is not developed in the nearbyWeaber-1 well. The Enga Sandstone reservoir encountered in Weaber-1 proved to be water wet inWeaber-2A
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COMPOSITIONAL DATA :GAS :GASPROPERT
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Accumulation Number: 10BONAPARTEORI
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Accumulation Number: 11BUFFALOORIGI
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Accumulation Number: 12BULLERORIGIN
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REMARKS:Fluorescence recorded below
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124°58'125°00'125°02'Challis 11C
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Accumulation Number: 14CHALLISORIGI
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RFT 4, 1,392 m,Recovered 6.5 litres
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Accumulation Number: 15CHUDITCHORIG
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Accumulation Number: 16CORALLINAORI
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Accumulation Number: 17CRUXORIGINAL
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Accumulation Number: 18CURLEWORIGIN
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TEST DATA FROM THE DISCOVERY WELL (
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125°18'1060125°20'10701070107011
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Accumulation Number: 20EAST SWANORI
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GAS SATURATION:33% (average, 2,695
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124°34' 124°36' 124°38'280012°1
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1250125°45'125°50'0 5 km11°15'Co
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Accumulation Number: 23ELANGORIGINA
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126°32'126°34' 126°36' 126°38'1
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Accumulation Number: 24EVANS SHOALO
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RFT 13, 3,678 m,Plover FormationRec
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1800127°30'2000127°40'19002000210
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126°30'126°40'1050105010°50'1000
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STRATIGRAPHY (Flamingo-1) :AGE UNIT
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600129°15'129°30'129°45'11°45'N
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Accumulation Number: 28FOHNORIGINAL
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Accumulation Number: 29GARIMALAORIG
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Accumulation Number: 30HALCYONORIGI
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STRATIGRAPHY (Halcyon-1) :AGE UNIT
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124°58'125°00'Jabiru 1211°55'Jab
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Jabiru-4 intersected a 32.5 m gross
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STRATIGRAPHY (Jabiru-12) :AGE UNIT
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REMARKS:Jahal-1 was drilled to 3,30
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126°28'126°30'320010°50'3200Kaka
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Accumulation Number: 34KAKATUA NORT
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REMARKS:Kakatua North-1 was abandon
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1700129°00'1800129°05'1790129°10
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Accumulation Number: 36KELP DEEPORI
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STRATIGRAPHY (Krill-1) :AGE UNIT FO
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Accumulation Number: 40LESUEURORIGI
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Accumulation Number: 39LAMINARIAORI
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Accumulation Number: 41LEEUWINORIGI
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STRATIGRAPHY (Leeuwin-1) :AGE UNIT
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1400125°35'125°40'145014201450140
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Accumulation Number: 43LOXTON SHOAL
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RESERVES:Gas:Condensate:9.56 TCF (i
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RFT 8, 3,724.9 m,Recovered 0.03 m 3
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Accumulation Number: 45MARETORIGINA
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REMARKS:A 3.5 m gross hydrocarbon c
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124°31'124°33'12°40'275027002700
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STRATIGRAPHY (Montara-1) :AGE UNIT
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125°00'125°05'350032500 5 kmConto
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STRATIGRAPHY (Oliver-1) :AGE UNIT F
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MDT, Run 1, 2,600.5 mRecovered 21 l
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125°02'00.5 km1650Contour Interval
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Accumulation Number: 50PENGUINORIGI
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RFT 5, 2,535 m,Recovered 3.6 m 3 of
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128°20'WANT128°30'425012°40'0 10
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Page 129 and 130: Accumulation Number: 53PUFFINORIGIN
Page 131 and 132: APPRAISAL AND DEVELOPMENT DRILLING
Page 133 and 134: Accumulation Number: 54RAMBLERORIGI
Page 135 and 136: TEST DATA FROM THE DISCOVERY WELL (
Page 137 and 138: STRATIGRAPHY (Saratoga-1) :AGE UNIT
Page 139 and 140: 124°24'124°25'124°26'124°27'GOC
Page 141 and 142: RESERVES:Initial Oil:20.5 MMbblsSou
Page 143 and 144: 17501750127°45' 128°00' 128°15'1
Page 145 and 146: Accumulation Number: 58SUNSETORIGIN
Page 149 and 150: Accumulation Number: 59SWANORIGINAL
Page 151 and 152: TEST DATA FROM THE DISCOVERY WELL (
Page 153 and 154: Accumulation Number: 60TAHBILKORIGI
Page 155 and 156: NET PAY:60.7 mNET TO GROSS RATIO: 8
Page 157 and 158: 16001600124°52'124°52'124°54'165
Page 159 and 160: COMPOSITIONAL DATA CONTD :GAS :GASP
Page 163 and 164: Accumulation Number: 63TERNORIGINAL
Page 165 and 166: PERMEABILITY:PETROLEUM BEARING UNIT
Page 167 and 168: Accumulation Number: 64TROUBADOUROR
Page 169 and 170: FIT 3, 2,286 m,Recovered 0.45 m 3 o
Page 171 and 172: Accumulation Number: 65TURTLEORIGIN
Page 173 and 174: PETROLEUM BEARING UNIT No.2:CONTENT
Page 175 and 176: RFT 4, 1,624.6 m,Recovered 1-2 cc o
Page 177 and 178: Accumulation Number: 66VIENTAORIGIN
Page 179: APPRAISAL AND DEVELOPMENT DRILLING
Page 184 and 185: 123° 124° 125° 126° 127° 128°
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COMPOSITIONAL DATA : GAS : GAS PROPERTIES Puffin Fm RFT ...

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