6506/12-4
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Generell informasjon
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Brønnhistorie
GeneralWildcat well 6506/12-4 was drilled on the Alpha north segment in the northern part of the Smørbukk field, Haltenbanken. The primary objective was to test the hydrocarbon bearing potential of Middle Jurassic Sandstones.Secondary objectives were to test Early Jurassic sandstones within the coal beds, and possible sand development within the Cretaceous. The prognosed depth was 4457 m or rocks of Triassic age to satisfy the licence commitment.The well is the typewell for the Melke, Springar, and Nise Formations, and reference well for the Viking and Cromer Knoll Groups and the Lange, Lysing, and Kvitnos Formations (NPD Bulletin no 4)Operations and resultsWildcat well 6506/12-4 was spudded with Dyvi Offshore installation Dyvi Stena 24 March 1985 and drilled to TD at 4457 m in the Early Jurassic Åre Formation. The well was drilled with seawater and hi-vis pills down to 680 m where a shallow gas pocket caused the well to flow. The gas was led through the diverter system and mud weight was increased. This led to lost circulation, but control was gradually regained after pumping LCM pills. A cement plug was set between 600 m and 680 m. The 20" casing was set shallow at 622 m and drilling commenced with a Gypsum / Lignosulphonate mud system to the 8 1/2" section at 3936 m from where a weighted lignosulphonate mud system was used the rest of he well bore down to TD. During coring operation, at 3978 m, a water kick was experienced, but was brought under control. During cleanup at TD the drill string got stuck. While attempting to work this free, the string fell of the hook. Three weeks were spent on fishing for the string without complete success. The top of the fish is left at 3910 m.About ten m sandstone was encountered in top Lysing Formation (Late Cenomanian ? Turonian). The sandstone was cored and it contained hydrocarbons but none were produced during DST. The Garn Formation was encountered at 3980 m and a pore pressure considerably higher than expected was observed. Shows were recorded on the cores from the Lysing. Shows recorded in sandstone sequences throughout the Jurassic indicated residual hydrocarbons. Three cores were cut in the well: one from 3135 m to 3157 m in the Lysing to Lange Formations and two from 3972 m to 4008.5 m in the Melke to Garn Formations. The well was plugged and abandoned on 13 August 1985 as a dry well with shows.TestingOne DST test was performed in the Lysing Formation between 3133 m to 3150 m. Only water was produced and the test indicated poor reservoir characteristics. Maximum temperature at 3095.62 m was 105.9°C -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]370.004457.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13129.03150.9[m ]23972.03980.1[m ]33980.24008.7[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]58.5Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1630.0[m]DCOD1990.0[m]DCSTRAT2010.0[m]DCSTRAT2020.0[m]DCSTRAT2040.0[m]DCSTRAT2050.0[m]DCSTRAT2070.0[m]DCSTRAT2080.0[m]DCSTRAT2100.0[m]DCSTRAT2110.0[m]DCSTRAT2130.0[m]DCSTRAT2140.0[m]DCSTRAT2140.0[m]DCOD2160.0[m]DCSTRAT2170.0[m]DCSTRAT2180.0[m]DCOD2190.0[m]DCSTRAT2210.0[m]DCSTRAT2220.0[m]DCSTRAT2240.0[m]DCSTRAT2250.0[m]DCSTRAT2270.0[m]DCSTRAT2280.0[m]DCSTRAT2300.0[m]DCSTRAT2310.0[m]DCSTRAT2326.0[m]DCSTRAT2340.0[m]DCSTRAT2360.0[m]DCSTRAT2375.0[m]SWCSTRAT2381.0[m]DCSTRAT2390.0[m]DCSTRAT2405.0[m]DCSTRAT2434.0[m]DCSTRAT2449.0[m]DCSTRAT2464.0[m]DCSTRAT2481.5[m]SWCSTRAT2482.0[m]DCSTRAT2497.0[m]DCSTRAT2509.0[m]DCSTRAT2527.0[m]DCSTRAT2539.0[m]DCSTRAT2554.0[m]DCSTRAT2569.0[m]DCSTRAT2579.5[m]SWCSTRAT2584.0[m]DCSTRAT2599.0[m]DCSTRAT2614.0[m]DCSTRAT2629.0[m]DCSTRAT2644.0[m]DCSTRAT2659.0[m]DCSTRAT2674.0[m]DCSTRAT2679.5[m]SWCSTRAT2689.0[m]DCSTRAT2704.0[m]DCSTRAT2734.0[m]DCSTRAT2749.0[m]DCSTRAT2764.0[m]DCSTRAT2779.0[m]DCSTRAT2780.0[m]SWCSTRAT2794.0[m]DCSTRAT2809.0[m]DCSTRAT2824.0[m]DCSTRAT2839.0[m]DCSTRAT2853.0[m]DCSTRAT2868.0[m]DCSTRAT2879.5[m]SWCSTRAT2884.0[m]DCSTRAT2899.0[m]DCSTRAT2914.0[m]DCSTRAT2929.0[m]DCSTRAT2934.5[m]SWCSTRAT2944.0[m]DCSTRAT2959.0[m]DCSTRAT2974.0[m]DCSTRAT2989.0[m]DCSTRAT3004.0[m]DCSTRAT3019.0[m]DCSTRAT3034.0[m]DCSTRAT3034.0[m]DCRRI3049.0[m]DCSTRAT3052.0[m]DCRRI3064.0[m]DCSTRAT3070.0[m]DCRRI3079.0[m]DCSTRAT3084.5[m]SWCSTRAT3094.0[m]DCSTRAT3094.0[m]DCRRI3109.0[m]DCSTRAT3114.5[m]SWCSTRAT3124.0[m]DCSTRAT3129.1[m]CSTRAT3130.1[m]CSAGA3130.4[m]CSAGA3132.5[m]CSTRAT3133.2[m]CSTRAT3133.4[m]CSAGA3136.6[m]CSTRAT3137.8[m]CSAGA3139.0[m]DCSTRAT3139.7[m]CSTRAT3141.0[m]CSTRAT3143.2[m]CSAGA3143.4[m]CSTRAT3143.7[m]CSTRAT3144.3[m]CSAGA3146.4[m]CSTRAT3146.8[m]CSAGA3148.1[m]CSTRAT3149.2[m]CSAGA3150.0[m]CSTRAT3150.9[m]CSAGA3154.0[m]DCSTRAT3160.0[m]DCRRI3169.0[m]DCSTRAT3181.0[m]DCRRI3184.0[m]DCSTRAT3199.0[m]DCSTRAT3204.5[m]SWCSTRAT3214.0[m]DCSTRAT3223.0[m]DCRRI3229.0[m]DCSTRAT3244.0[m]DCSTRAT3244.0[m]DCRRI3259.0[m]DCSTRAT3264.5[m]SWCSTRAT3274.0[m]DCSTRAT3283.0[m]DCRRI3289.0[m]DCSTRAT3301.0[m]DCRRI3304.0[m]DCSTRAT3319.0[m]DCSTRAT3319.0[m]DCRRI3334.0[m]DCSTRAT3337.0[m]DCRRI3349.0[m]DCSTRAT3354.5[m]SWCSTRAT3364.0[m]DCSTRAT3373.0[m]DCRRI3379.0[m]DCSTRAT3391.0[m]DCRRI3394.0[m]DCSTRAT3409.0[m]DCSTRAT3409.0[m]DCRRI3424.0[m]DCSTRAT3427.0[m]DCRRI3439.0[m]DCSTRAT3444.5[m]SWCSTRAT3454.0[m]DCSTRAT3463.0[m]DCRRI3469.0[m]DCSTRAT3484.0[m]DCSTRAT3493.0[m]DCRRI3499.0[m]DCSTRAT3504.5[m]SWCSTRAT3514.0[m]DCSTRAT3523.0[m]DCRRI3529.0[m]DCSTRAT3541.0[m]DCRRI3544.0[m]DCSTRAT3559.0[m]DCSTRAT3559.0[m]DCRRI3574.0[m]DCSTRAT3577.0[m]DCRRI3589.0[m]DCSTRAT3595.0[m]DCRRI3604.0[m]DCSTRAT3613.0[m]DCRRI3619.0[m]DCSTRAT3631.0[m]DCRRI3634.0[m]DCSTRAT3649.0[m]DCSTRAT3649.0[m]DCRRI3664.0[m]DCRRI3667.0[m]DCRRI3679.0[m]DCSTRAT3685.0[m]DCRRI3697.0[m]DCSTRAT3703.0[m]DCRRI3709.0[m]DCSTRAT3721.0[m]DCRRI3724.0[m]DCSTRAT3736.0[m]DCSTRAT3739.0[m]DCRRI3754.0[m]DCSTRAT3757.0[m]DCRRI3769.0[m]DCSTRAT3775.0[m]DCRRI3784.0[m]DCSTRAT3793.0[m]DCRRI3799.0[m]DCSTRAT3811.0[m]DCRRI3814.0[m]DCSTRAT3820.0[m]DCRRI3829.0[m]DCSTRAT3835.0[m]DCRRI3844.0[m]DCSTRAT3847.0[m]DCRRI3859.0[m]DCSTRAT3859.0[m]DCRRI3871.0[m]DCRRI3874.0[m]DCSTRAT3889.0[m]DCSTRAT3898.0[m]DCSTRAT3934.0[m]DCSTRAT3943.0[m]DCSTRAT3964.0[m]DCSTRAT3970.0[m]DCSTRAT3972.1[m]CSTRAT3972.2[m]CSTRAT3972.6[m]COD3973.1[m]COD3974.1[m]CSTRAT3974.5[m]COD3975.2[m]CSTRAT3975.7[m]COD3976.1[m]CSTRAT3977.0[m]COD3977.0[m]CSTRAT3977.6[m]CSTRAT3983.0[m]CSTRAT3988.4[m]COD3993.0[m]CSTRAT3997.9[m]CSTRAT4012.0[m]DCSTRAT4021.0[m]DCSTRAT4030.0[m]DCSTRAT4039.0[m]DCSTRAT4048.0[m]DCSTRAT4057.0[m]DCSTRAT4066.0[m]DCSTRAT4075.0[m]DCSTRAT4084.0[m]DCSTRAT4093.0[m]DCSTRAT4102.0[m]DCSTRAT4111.0[m]DCSTRAT4120.0[m]DCSTRAT4132.0[m]DCSTRAT4138.0[m]DCSTRAT4156.0[m]DCSTRAT4165.0[m]DCSTRAT4174.0[m]DCSTRAT4183.0[m]DCSTRAT4192.0[m]DCSTRAT4201.0[m]DCSTRAT4210.0[m]DCSTRAT4219.0[m]DCSTRAT4228.0[m]DCSTRAT4237.0[m]DCSTRAT4246.0[m]DCSTRAT4255.0[m]DCSTRAT4264.0[m]DCSTRAT4273.0[m]DCSTRAT4282.0[m]DCSTRAT4291.0[m]DCSTRAT4300.0[m]DCSTRAT4309.0[m]DCSTRAT4318.0[m]DCSTRAT4327.0[m]DCSTRAT4399.0[m]DCSTRAT4408.0[m]DCSTRAT4417.0[m]DCSTRAT4426.0[m]DCSTRAT4435.0[m]DCSTRAT4444.0[m]DCSTRAT4459.0[m]DCSTRAT -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet28228214701897189720652065217122112211238026003133313331503835385538553863398039804021404541164116416842524414 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.76 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf4.80 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.30pdf0.31 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf32.29 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.03133315012.7Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.017.000Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.0 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR2702087CBL VDL GR2702087CBL VDL GR2753905CST GR22073505ISF LSS MSFL SP GR355638ISF LSS MSFL SP GR6202105ISF LSS MSFL SP GR20883953ISF LSS MSFL SP GR39344457LDL CNL GR6202106LDL CNL HGS GR20873956LDL GR6202106MWD - GR RES DIR3764437NGS PL.B36503956VSP6303905 -
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 formasjonstestCONDUCTOR30356.036357.00.00LOTSURF.COND.20622.026680.01.54LOTINTERM.13 3/82089.017 1/22107.01.79LOTINTERM.9 5/83936.012 1/43955.01.92LOTOPEN HOLE4457.08 1/24457.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling6801.126.07.3WATERBASED10.04.19856801.126.07.3WATER BASED10.04.198516501.216.07.0WATERBASED23.04.198516501.216.07.0WATER BASED23.04.198521071.506.07.0WATERBASED25.04.198521071.506.07.0WATER BASED25.04.198539501.7318.06.7WATER BASED04.06.198539501.7318.06.7WATERBASED04.06.198539781.7918.07.0WATERBASED20.06.198539781.7918.07.0WATER BASED20.06.198541121.7922.07.7WATER BASED25.06.198541121.7922.07.7WATERBASED25.06.1985 -
Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet3129.35[m ]3136.35[m ]3138.35[m ]3139.35[m ]