7125/4-1
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Generell informasjon
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Brønnhistorie
Wellbore historyGeneralWildcat well 7125/4-1 was drilled on the Måsøy Fault Complex in the Barents Sea. The primary objective was to prove commercial hydrocarbon resources within the Nucula prospect, a 4-way structural closure dependent on sealing faults. The structure comprises the Middle Jurassic - Late Triassic Realgrunnen Group, the Late - Middle Triassic Snadd Formation and the Middle Triassic Kobbe Formation reservoirs.Operations and resultsWell 7125/4-1 was spudded with the semi-submersible installation Polar Pioneer on 17 January 2007 and drilled to TD at 1615 m in the Early Triassic Klappmyss Formation. The well was drilled without significant technical problems. It was drilled with sodium chloride brine down to 465 m and with potassium formate mud from 465 m to TD. No shallow gas was observed.The Kapp Toscana Group, penetrated at 872 m, proved movable gas and oil in the Nordmela and Fruholmen Formations with a GOC at 894 m and an ODT at 939 m. Gas and oil samples were recovered at 951.8 m and 967 m respectively, suggest a separate reservoir at this level, but tight formation makes it difficult to evaluate, and these samples may represent a continuation of the reservoir above. The reservoir had a considerably poorer net/gross than expected. The underlying Snadd Formation was encountered at 1002 m. It was water bearing in the upper part where some sandstone intervals with very good reservoir quality were penetrated. Traces of oil and gas were described in the lower part of Snadd. The Kobbe Formation was encountered at 1206 m. It had a few good reservoir sandstones, especially in the upper part, and some residual oil was proven in this zone. Towards the lower part of the formation at 1428 m, some 60 m of gas was proven down to a probable thin oil zone at 1484 m. The lowest part of the Kobbe Formation proved water gradient. The Klappmyss Formation, penetrated outside of the structural closure, contained interbedded claystones and sandstones without shows of hydrocarbons.Two cores were cut in the Fruholmen Formation comprising mudstones, sandstones and siltstones. MDT gas samples were recovered at 883.4 m, 951.8 m and 1477.3 m. MDT oil samples were recovered at 914.5 m, 938.1 m, 967.0 m, 898.2 m and 1487.8 m. MDT water samples were collected at 986.5 and 1508.9 m.After wire line logging the well was permanently plugged and abandoned as an oil and gas discovery well on 7 March 2007.TestingNo drill stem test was performed. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]470.001615.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet1885.0894.7[m ]2895.0909.1[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]23.8Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Foringsrør og formasjonsstyrketester
Foringsrør og formasjonsstyrketester Type utforingUtforing diam.
[tommer]Utforing dybde
[m]Brønnbane diam.
[tommer]Brønnbane dyp
[m]LOT/FIT slam eqv.
[g/cm3]Type formasjonstestCONDUCTOR30376.036376.00.00LOTSURF.COND.20454.026454.00.00LOTINTERM.13 3/8551.017 1/2551.01.14LOTINTERM.9 5/8838.012 1/4838.01.51LOTOPEN HOLE1615.08 1/21615.01.85LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DSI TLD DNL556844FMI APS GR PPC MSIP8381253FMI MSIP PPC12301605MDT8621245MDT873986MDT PEX ECS HNGS11341604MDT Q14051524MSCT8401593MSCT12531253MSIP PPC IS12001284MWD - ARC DT RAB APWD DIR3161615SP SMR HRLA PEX ECS HNGS8381253VSP3171605 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet3164934934994995385386997027337798178178648698728728821002120612061561 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokument størrelse [KB]pdf0.28 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokument størrelse [KB]txt0.00txt0.33pdf0.40pdf2.40 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4041.03WATER BASED4741.0714.0WATER BASED5561.0811.0WATER BASED7051.3019.0WATER BASED8441.3019.0WATER BASED -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie470.0[m]DCFUGRO490.0[m]DCFUGRO496.0[m]DCFUGRO500.0[m]DCFUGRO510.0[m]DCFUGRO516.0[m]DCFUGRO530.0[m]DCFUGRO540.0[m]DCFUGRO560.0[m]DCFUGRO570.0[m]DCFUGRO580.0[m]DCFUGRO600.0[m]DCFUGRO620.0[m]DCFUGRO640.0[m]DCFUGRO660.0[m]DCFUGRO680.0[m]DCFUGRO690.0[m]DCFUGRO700.0[m]DCFUGRO710.0[m]DCFUGRO720.0[m]DCFUGRO730.0[m]DCFUGRO740.0[m]DCFUGRO750.0[m]DCFUGRO760.0[m]DCFUGRO770.0[m]DCFUGRO780.0[m]DCFUGRO790.0[m]DCFUGRO800.0[m]DCFUGRO810.0[m]DCFUGRO820.0[m]DCFUGRO830.0[m]DCFUGRO845.0[m]DCFUGRO850.0[m]DCFUGRO856.0[m]DCFUGRO862.0[m]DCFUGRO865.0[m]DCFUGRO868.0[m]DCFUGRO871.0[m]DCFUGRO871.0[m]SWCFUGRO874.0[m]DCFUGRO877.0[m]DCROBERT879.5[m]SWCFUGRO880.0[m]DCFUGRO883.0[m]DCFUGRO885.0[m]DCFUGRO887.3[m]CICHRON889.0[m]CFUGRO901.6[m]CICHRON905.0[m]CICHRON906.3[m]CICHRON907.5[m]CICHRON913.0[m]DCFUGRO952.0[m]DCFUGRO958.0[m]DCFUGRO964.0[m]DCFUGRO967.0[m]DCFUGRO976.0[m]DCFUGRO985.0[m]DCFUGRO988.0[m]DCFUGRO994.0[m]DCFUGRO1003.0[m]DCFUGRO1009.0[m]DCFUGRO1021.0[m]DCFUGRO1036.0[m]DCFUGRO1042.0[m]DCFUGRO1054.0[m]DCFUGRO1060.0[m]DCFUGRO1066.0[m]DCFUGRO1084.0[m]DCFUGRO1090.0[m]DCFUGRO1096.0[m]DCFUGRO1105.0[m]DCFUGRO1123.0[m]DCFUGRO1126.0[m]DCFUGRO1138.0[m]DCFUGRO1150.0[m]DCFUGRO1168.0[m]DCFUGRO1186.0[m]DCFUGRO1192.0[m]DCFUGRO1198.0[m]DCFUGRO1203.0[m]SWCFUGRO1204.0[m]DCFUGRO1205.0[m]SWCFUGRO1213.0[m]DCFUGRO1218.0[m]SWCFUGRO1219.0[m]DCFUGRO1228.0[m]DCFUGRO1237.0[m]SWCFUGRO1245.0[m]SWCFUGRO1249.0[m]DCFUGRO1252.0[m]DCFUGRO1258.0[m]DCFUGRO1285.0[m]DCFUGRO1297.0[m]DCFUGRO1303.0[m]DCFUGRO1306.0[m]DCFUGRO1310.0[m]DCFUGRO1328.0[m]DCFUGRO1333.0[m]DCFUGRO1339.0[m]DCFUGRO1339.0[m]SWCFUGRO1342.0[m]DCFUGRO1346.7[m]SWCFUGRO1358.6[m]SWCFUGRO1378.0[m]DCFUGRO1379.1[m]SWCFUGRO1384.0[m]DCFUGRO1390.0[m]DCFUGRO1396.0[m]DCFUGRO1409.2[m]SWCFUGRO1414.0[m]DCFUGRO1421.0[m]DCFUGRO1429.0[m]DCFUGRO1435.0[m]DCFUGRO1441.0[m]DCFUGRO1448.0[m]DCFUGRO1459.0[m]DCFUGRO1465.0[m]DCFUGRO1488.0[m]DCFUGRO1501.0[m]DCFUGRO1505.0[m]DCFUGRO1513.0[m]DCFUGRO1522.0[m]DCFUGRO1525.0[m]DCFUGRO1534.0[m]DCFUGRO1540.0[m]DCFUGRO1548.0[m]DCFUGRO1550.0[m]SWCFUGRO1555.0[m]DCFUGRO1567.0[m]DCFUGRO1571.0[m]DCFUGRO1573.0[m]DCFUGRO1575.2[m]SWCFUGRO1579.0[m]DCFUGRO1588.0[m]DCFUGRO1588.0[m]SWCFUGRO1593.0[m]SWCFUGRO1600.0[m]DCFUGRO1609.0[m]DCFUGRO1612.0[m]DCFUGRO1615.0[m]DCFUGRO -
Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet885.20[m ]886.40[m ]887.20[m ]894.20[m ]899.80[m ]901.05[m ]904.50[m ]905.50[m ]