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

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APPRAISAL AND DEVELOPMENT DRILLING :Petrel-1A was drilled as a directional relief well to control the gas blowout that occurred while drillingPetrel-1.Petrel-2 was drilled 5.2 km to the southeast of Petrel-1A. The first measured gas flow from the Petrelaccumulation occured in this well. Here, DST 6 taken at around 3,658 mKB, flowed gas at 263,350m 3 /day from the ‘Middle Sandstone Zone’ of the Cape Hay Member.Petrel-3, drilled 15.6 km to the southeast of Petrel-1A on the southern nose of the Petrel anticline wascased and suspended as a possible future gas producer.Petrel-4 drilled 6.8 km south-southeast of Petrel-1A, structurally updip from Petrel-3, was cased andsuspended as a possible future gas producer.Petrel-5 recorded the highest gas flow on test from the Petrel accumulation. In this well, gas flowed at979,760 m 3 /day and condensate at 19 bbls/day through a 25.4 mm choke from a sandstone near the topof the Cape Hay Member. The well was plugged and abandoned as it was not considered to be in anoptimal position for field development.Petrel-6, drilled 3.8 km northwest of Petrel-1A in a crestal position was plugged and abandoned afterfailing to encounter reservoir quality sandstones above the highest known water.RESERVES:Gas:535 BCFSource: Northern Territory Department of Business Industry and Resource Development,1997.REMARKS:In Petrel-1, gas from a drilling break encountered between 3,978.2 mKB and 3,979.8 mKB in the HylandBay Formation blew out. The gas blowout burned at a slowly diminishing rate over a 16 month perioduntil a directional relief well (Petrel-1A) was drilled.At date of publication, the Petrel accumulation was held under Retention Lease NT/RL1 and RetentionLease WA-6-R.
COMPOSITIONAL DATA :GAS :GASPROPERTIESPetrel FieldCape Hay Mbr(‘Upper’ Sand)Methane 91.47Ethane 1.70Propane 0.35Isobutane 0.07N-butane 0.09Isopentane 0.03N-pentane 0.03Hexanes + 0.26Nitrogen 0.85CO 2 5.15H 2 S 0.00Specific Gravity 0.7599BTU/ft 3 (gross) 991STRATIGRAPHY (Petrel-1) :AGE UNIT FORMATION TOP(mKB)TERTIARY WOODBINE GROUP Undifferentiated 34.4CRETACEOUS BATHURST ISLAND GP Undifferentiated 412.7JURASSIC FLAMINGO GROUP Undifferentiated 1571.2TROUGHTON Malita Formation 2229.3TRIASSIC GROUP Cape Londondery Fm 2471.3Mt Goodwin Fm 2887.1KINMORE Hyland Bay Formation 3464.4PERMIAN GROUP Tern Member 3464.4Cape Hay Member 3974.6
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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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COMPOSITIONAL DATA :GAS :GASPROPERT
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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
Page 75 and 76: Accumulation Number: 34KAKATUA NORT
Page 77 and 78: REMARKS:Kakatua North-1 was abandon
Page 79 and 80: 1700129°00'1800129°05'1790129°10
Page 81 and 82: Accumulation Number: 36KELP DEEPORI
Page 83 and 84: STRATIGRAPHY (Krill-1) :AGE UNIT FO
Page 85 and 86: Accumulation Number: 40LESUEURORIGI
Page 87 and 88: TEST DATA FROM THE DISCOVERY WELL (
Page 89 and 90: Accumulation Number: 39LAMINARIAORI
Page 93 and 94: Accumulation Number: 41LEEUWINORIGI
Page 95 and 96: STRATIGRAPHY (Leeuwin-1) :AGE UNIT
Page 97 and 98: 1400125°35'125°40'145014201450140
Page 99 and 100: Accumulation Number: 43LOXTON SHOAL
Page 101 and 102: RESERVES:Gas:Condensate:9.56 TCF (i
Page 103 and 104: RFT 8, 3,724.9 m,Recovered 0.03 m 3
Page 105 and 106: Accumulation Number: 45MARETORIGINA
Page 107 and 108: REMARKS:A 3.5 m gross hydrocarbon c
Page 109 and 110: 124°31'124°33'12°40'275027002700
Page 111 and 112: STRATIGRAPHY (Montara-1) :AGE UNIT
Page 113 and 114: 125°00'125°05'350032500 5 kmConto
Page 115 and 116: STRATIGRAPHY (Oliver-1) :AGE UNIT F
Page 117 and 118: MDT, Run 1, 2,600.5 mRecovered 21 l
Page 119 and 120: 125°02'00.5 km1650Contour Interval
Page 121 and 122: Accumulation Number: 50PENGUINORIGI
Page 123 and 124: RFT 5, 2,535 m,Recovered 3.6 m 3 of
Page 125: 128°20'WANT128°30'425012°40'0 10
Page 129 and 130: Accumulation Number: 53PUFFINORIGIN
Page 131 and 132: APPRAISAL AND DEVELOPMENT DRILLING
Page 133 and 134: Accumulation Number: 54RAMBLERORIGI
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 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
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Accumulation Number: 66VIENTAORIGIN
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APPRAISAL AND DEVELOPMENT DRILLING
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PETROLEUM BEARING UNIT No.2: Langfi
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123° 124° 125° 126° 127° 128°
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COMPOSITIONAL DATA : GAS : GAS PROPERTIES Puffin Fm RFT ...

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