7124/4-1 S
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Generell informasjon
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Brønnhistorie
GeneralWell 7124/4-1 S was drilled on the Heilo prospect in the transition zone between the Hammerfest and the Nordkapp Basins, approximately 105 km north of Hammerfest and approximately 70 km north-east of Goliat field. The Heilo prospect was defined as a structural trap in the Jurassic-Triassic Fruholmen Formation in the Kapp Toscana Group. The main objective was to test reservoir and hydrocarbon presence in the Jurassic -Triassic Stø to Fruholmen formations. The Triassic Snadd, Kobbe, Klappmyss and Havert formations were secondary objectives.Operations and resultsWildcat well 7124/4-1 S was spudded with the semi-submersible installation Aker Barents on 16 September 2011 and drilled to TD at 2814 m (2730 m TVD) in the in the Early Triassic Havert Formation. A 9 7/8" pilot hole was drilled from 406.6 m to 829 m to check for shallow gas no shallow gas was seen. The well was drilled vertical down to 610 m, building angle to ca 16 deg at 1200 m, keeping this angle to TD. It was drilled without significant problems using seawater and hi-vis pills down to 1165 m and with Glydril mud from 1165 m to TD.In the Jurassic the well encountered the Stø Formation at 1259 m (1238m TVD). The Stø Formation was 50.5 m TVD thick, with good reservoir quality. The Triassic Snadd Formation at 1330 m (1307 m TVD) also proved good reservoir properties. The deeper Kobbe, Klappmyss and Havert formations all contained sand layers at the top, but with reduced reservoir quality downwards. No shows were recorded in the well.No cores were cut and no wire line fluid samples were taken.The well was permanently abandoned on 12 October 2011 as a dry well.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]830.002813.00 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1264.0[m]DCFUGRO1294.0[m]DCFUGRO1297.0[m]DCFUGRO1300.0[m]DCFUGRO1309.0[m]DCFUGRO1360.0[m]DCFUGRO1372.0[m]DCFUGRO1387.0[m]DCFUGRO1399.0[m]DCFUGRO1432.0[m]DCFUGRO2627.0[m]DCFUGRO2657.0[m]DCFUGRO2663.0[m]DCFUGRO -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet343443443575575600600115411661209125212591259131213301888188822762606 -
Geokjemisk informasjon
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Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]MWD - ARCVIS SONVIS343825MWD - ARCVIS SONVIS PDX58261165MWD - GEOVIS ARCVIS ADNVIS SONVI11651699MWD - PDX5 IMP VPWD ADNVIS SON16992814 -
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 formasjonstestCONDUCTOR30404.536406.00.00LOTSURF.COND.13 3/8819.517 1/2826.00.00LOTPILOT HOLE829.09 7/8829.00.00LOTINTERM.9 5/81160.012 1/41165.01.53LOTLINER71695.58 1/21699.02.05LOTOPEN HOLE2814.062814.01.70LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling9171.2215.0Glydril13451.3116.0Glydril16991.3119.0Glydril21141.3119.0Glydril24561.3119.0Glydril28141.3118.0Glydril