15/9-2
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Generell informasjon
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Brønnhistorie
GeneralWell 15/9-2 was drilled on the Sleipner Vest Field in the North Sea. The primary objective was to test the "beta closure" on the 15/6-3 Sleipner Vest discovery. The target was Middle Jurassic sandstones.Operations and resultsWell 15/9-2 was spudded with the semi-submersible installation Ross Rig on 12 April 1978 and drilled to TD at 3764 m in Late Triassic sediments in the Skagerrak Formation. The main problem in operations was the discovery of a washout in the well head 18 3/4" ax seal area after setting 9 5/8" casing. This was repaired so that drilling could proceed, but it was decided not to do the planned DST due to possible leak. Otherwise, operations proceeded without significant problem. The well was drilled with seawater and gel down to 644 m and with gel and lignosulphonate from 644 m to TD.The Vestland Group, Hugin Formation was encountered at 3483 m. The Hugin Formation contained gas/condensate down to the OWC between 3652 and 3654 m based on logs and pressure gradients. Weak shows continued down to 3659 m, 2 meters into top Sleipner Formation. Two spots of dead oil and fluorescence on limestone/siltstone cuttings at 2788 and 2812 m in the upper Shetland Group were the only other shows described in the well.A total of 186.3 m core was recovered in 11 cores from the interval 3498 m to 3692 m. RFT fluid samples were taken at 3490 m ((gas, condensate, water), 3535,7 m (gas and condensate), 3601.6 m (gas, condensate, water), 3640.4 m (gas, condensate, water), 3641 m (gas, condensate, water), 3641.5 m (gas, condensate, water), 3644 m (gas, condensate, water), 3652 m (gas, condensate, water), and 3654 m (water). The condensate gravity in the samples varied from 50.3 °API in the shallowest sample to 45.5 °API in the sample just above the OWC.The well was permanently abandoned on 17 June 1978 as a gas/condensate 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]170.003834.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13498.03514.6[m ]23515.03533.3[m ]33533.33551.6[m ]43551.63569.9[m ]53569.93588.2[m ]63588.23606.2[m ]73606.23625.7[m ]83624.53642.5[m ]93645.73661.1[m ]103661.13669.0[m ]113674.03690.8[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]185.3Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3148.0[m]DC3178.0[m]DC3208.0[m]DC3238.0[m]DC3262.0[m]SWC3298.0[m]DC3327.0[m]SWC3359.0[m]SWC3365.0[m]SWC3370.0[m]SWC3390.0[m]SWC3397.0[m]SWC3400.0[m]SWC3410.0[m]SWC3420.0[m]SWC3425.0[m]SWC3430.0[m]SWC3438.0[m]SWC3442.0[m]SWC3445.0[m]SWC3452.0[m]SWC3455.0[m]SWC3458.0[m]SWC3460.0[m]SWC3468.0[m]SWC3471.0[m]SWC3475.0[m]SWC3482.0[m]SWC3485.0[m]SWC3495.2[m]C3501.5[m]C3507.0[m]C3512.9[m]C3517.4[m]C3522.5[m]C3528.0[m]C3532.0[m]C3537.0[m]C3542.0[m]C3547.0[m]C3551.8[m]C3551.8[m]C3557.6[m]C3562.0[m]C3567.0[m]C3572.0[m]C3577.0[m]C3582.0[m]C3587.0[m]C3592.0[m]C3597.0[m]C3601.5[m]C3607.0[m]C3613.5[m]C3617.0[m]C3622.0[m]C3627.0[m]C3632.0[m]C3636.3[m]C3642.0[m]C3647.0[m]C3652.0[m]C3657.0[m]C3662.0[m]C3666.0[m]C3672.0[m]C3677.0[m]C3682.0[m]C3687.3[m]C3700.0[m]SWC3708.0[m]SWC3723.0[m]SWC3735.0[m]SWC3750.0[m]SWC3755.0[m]SWC3760.0[m]SWC -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet133861102810941246131914381469228722872324238724192684276227622798304132143263330333033324334533963396347834833483365736993699 -
Geokjemisk informasjon
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Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.21pdf0.09 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf1.95pdf22.47 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL GR3991176CBL GR19082785CBL VDL CCL GR26862721CPI34603750DLL MSFL GR34503675FDC CNL GR27843760FDC GR3992800GEODIP34763660HDT27843760ISF SON1713760LCS SON27843750MLL34753760NGS34503760TDT34753758 -
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 formasjonstestCONDUCTOR30171.036171.00.00SURF.COND.20399.026415.00.00INTERM.13 3/81181.017 1/21195.00.00INTERM.9 5/82788.012 1/42819.00.00LINER73763.08 1/23764.00.00 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1710.00spud mud5301.09water based15731.24water based25171.24water based28191.25water based35781.35water based36931.35water based37641.25water 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