15/9-10
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Generell informasjon
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Brønnhistorie
GeneralWildcat well is located between the Sleipner Vest and Sleipner Øst Fields. The well was designed to test possible hydrocarbon accumulations in the Upper Middle Jurassic sands and secondary test Heimdal Formation Sand of Paleocene age.Operations and resultsWildcat well 15/9-10 was spudded with the semi-submersible installation Neptuno Nordraug on 15 September 1981 and drilled to TD at 3289 m in the Triassic Smith Bank Formation. Drilling the 26" hole section complete loss of returns occurred at 186 m and a cement plug was set. Drilling out of the cement returns were again lost, at 178 m, requiring a further cement plug. Total losses due to this loss zone were well in excess of 10 000 bbls. After this operations went without significant problems. The well was drilled with seawater and hi-vis pills down to 172 m. The next section, the 26" section, was drilled down to 472 m with seawater/bentonite and quantities of Mica Fine, Nutplug, Kwikseal, and other additives. From 472 m to TD m the well was drilled with polymer/Drispac.The well encountered Tertiary sands in the Utsira Formation at 884 - 1102 m, Grid Formation at 2049 - 2079 m, Heimdal and Ty Formations at 2547 m to 2667 m. An RFT run in the Heimdal sand indicated a water gradient, 1.02 g/cm3. The primary target Jurassic sandstones was encountered at 3070 m in the Hugin and Sleipner Formations. Some shows were recorded in the Hugin Formation, but from the logs the formations were all water-wet. Possible source rocks were encountered in a comparatively thick and marly Blodøks Formation from 2871 m to 2924 m, and in the Late Jurassic Draupne and Heather Formations from 3004 m to 3070 m. Four conventional cores were cut. Core 1 was cut from 3061 m to 3062.4 m in the Heather Formation, core 2 was cut from 3082 m to 3100 m in the Hugin Formation, and cores 3 and 4 were cut from 3137 m to 3171 m in the Sleipner Formation. No fluid sample was taken.The well was permanently abandoned as dry with minor shows on 7 November 1981.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]180.003285.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13061.03062.4[m ]23082.03101.0[m ]33137.03151.8[m ]43153.03171.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]53.2Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2945.5[m]DC2980.0[m]DC3010.0[m]DC3024.0[m]SWC3040.0[m]DC3056.0[m]SWC3061.2[m]COD3061.3[m]C3061.9[m]C3070.0[m]DC3070.0[m]DCOD3075.0[m]DCOD3079.0[m]SWC3082.2[m]COD3082.3[m]C3083.0[m]C3084.0[m]C3084.2[m]COD3086.6[m]COD3089.4[m]C3090.6[m]COD3095.5[m]COD3095.5[m]C3099.2[m]COD3100.0[m]DC3110.0[m]DCOD3116.5[m]SWC3120.0[m]DCOD3130.0[m]DCOD3130.0[m]DC3140.2[m]COD3175.0[m]DC3200.0[m]DC3230.0[m]DC3260.0[m]DC3290.0[m]DC -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDST0.000.0027.09.1993 - 19:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet12388410831102119812602049207923002300233524102547259625972667266726712733287129242955295529822991300430043059307030703127318331833241 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.53 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.10pdf0.25 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf16.17pdf1.86pdf0.11pdf3.58pdf0.15pdf3.89pdf0.29pdf2.43pdf0.18 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR1191420CBL VDL GR2251166CBL VDL GR6982695CST23422675CYBERBOND2251166CYBERBOND6982695CYBERDIP27053290CYBERLOOK31303291FDC CNL GR27053290FDC GR4712718GEODIP31253250HDT27053290ISF BHC GR1723289RFT25012659VELOCITY5803280 -
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 formasjonstestCONDUCTOR30172.036173.00.00LOTSURF.COND.20472.026485.01.75LOTINTERM.13 3/81166.017 1/21178.01.65LOTINTERM.9 5/82706.012 1/42719.01.78LOTOPEN HOLE3289.08 1/23289.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1971.0644.0spud mud4851.1044.06.0spud mud11781.1142.014.0water based25501.2249.020.0water based27191.2743.013.0water based29851.5053.012.0water based32891.4848.010.0water based -
Trykkplott
Trykkplott Porertrykksdataene kommer fra logging i brønnen hvis ingen annen kilde er oppgitt. I noen brønner der trykk ikke er logget, er det brukt informasjon fra formasjonstester eller brønnspark. Trykkdataene er rapportert inn til Oljedirektoratet og videre prosessert og kvalitetssikret av IHS Markit.Trykkplott Dokument navnDokument formatDokumentstørrelse [MB]pdf0.21