15/2-1
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Generell informasjon
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Brønnhistorie
GeneralWell 15/2-1 was drilled in the Vilje sub-basin in the Viking Graben in the North Sea, ca 1.5 km from the UK border. The objective of the well 15/2-1 was to test the Upper Jurassic, Middle Jurassic, and Triassic sandstone reservoirs northwest of and down dip of the salt diapir encountered in the well 15/5-3. The well was planned to be drilled ca 200 m into the Triassic with a total depth of ca 4525 m.Operations and resultsWildcat well 15/2-1 was spudded with the semi-submersible installation Nortrym on 26 September 1981 and drilled to TD at 4600 m in the Late Permian Zechstein Group. No significant problems were encountered in the operations. The well was drilled with seawater and hi-vis pills down to 665 m and with Shaletrol polymer mud system from 665 m to 2750 m. At 2750 m the mud was converted to a dispersed mud system by adding lignosulphonate and this was used for the remaining well bore down to TD. There was 0 - 3% oil in the mud below 1168 m.The well penetrated a number of sandstone Formations in the Tertiary (Skade, Grid, Intra Balder sandstone, Heimdal, and Ty Formations). All these were entirely water wet. The Hugin Formation (4356 - 4493 m) consisted of massive very fine grained sandstones with beds of coal on top. The Sleipner Formation (4493 - 4554.5 m) had a 10 m thick coal layer on top underlain by siltstones grading occasionally to very fine sandstones, interbeds of sandstones, and stringers of coal. The well did not penetrate any Early Jurassic or Triassic rocks, but encountered evaporites of Permian age at 4554.5 m, unconformably underlying the Sleipner Formation.Good hydrocarbon shows were reported from both the Hugin and Sleipner Formations. However, wire line log evaluation and core analysis showed very poor reservoir parameters and no moveable hydrocarbons. Fluorescence and cut were observed also on limestone and shale cuttings in the Tor Formation at 2800 - 2835 and in the Early Cretaceous at 3815 - 3922 mThree cores were cut from 4365 to 4405 m in the Hugin Formation. The RFT tool was run in the Hugin Formation. The formation proved to be tight and no wire line fluid samples were taken.The well was permanently abandoned on 24 February 1982 as a dry well with shows.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]200.004600.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14368.04369.8[m ]24369.84390.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]22.0Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2060.0[m]DCRRI2070.0[m]DCRRI2090.0[m]DCRRI2110.0[m]DCRRI2130.0[m]DCRRI2140.0[m]DCRRI2150.0[m]DCRRI2170.0[m]DCRRI2180.0[m]DCRRI2210.0[m]DCRRI2230.0[m]DCRRI2260.0[m]DCRRI2590.0[m]DCRRI2610.0[m]DCRRI2630.0[m]DCRRI2640.0[m]DCRRI2650.0[m]DCRRI3650.0[m]SWCRRI3660.5[m]SWCRRI3669.0[m]SWCRRI3690.0[m]SWCRRI3705.0[m]SWCRRI3720.0[m]SWCRRI3736.0[m]SWCRRI3741.0[m]SWCRRI3750.0[m]SWCRRI3765.5[m]SWCRRI3779.0[m]SWCRRI3781.0[m]SWCRRI3839.0[m]SWCRRI3877.0[m]SWCRRI3880.0[m]SWCRRI3908.5[m]SWCRRI3927.0[m]SWCRRI3937.5[m]SWCRRI3948.5[m]SWCRRI3960.0[m]SWCRRI3974.0[m]SWCRRI4016.5[m]SWCRRI4030.5[m]SWCRRI4055.0[m]SWCRRI4089.5[m]SWCRRI4114.5[m]SWCRRI4131.0[m]SWCRRI4157.0[m]SWCRRI4166.0[m]SWCRRI4180.0[m]SWCRRI4198.5[m]SWCRRI4218.0[m]SWCRRI4234.5[m]SWCRRI4242.5[m]SWCRRI4262.0[m]SWCRRI4280.0[m]SWCRRI4288.0[m]SWCRRI4306.0[m]SWCRRI4311.0[m]SWCRRI4317.0[m]SWCRRI4325.0[m]SWCRRI4336.5[m]SWCRRI4341.5[m]SWCRRI4352.0[m]SWCRRI4354.0[m]SWCRRI4357.0[m]SWCRRI4364.5[m]SWCRRI4365.3[m]CWESTLAB4365.8[m]CRRI4368.8[m]CWESTLAB4370.4[m]CWESTLA4372.3[m]CWESTLA4375.3[m]CWESTLA4375.9[m]CRRI4378.1[m]CWESTLAB4381.9[m]CWESTLA4386.0[m]CWESTLA4387.7[m]CWESTLA4388.7[m]CWESTLA4389.7[m]CRRI4389.9[m]CWESTLAB4390.4[m]CRRI4392.0[m]CRRI4396.0[m]CRRI4397.5[m]CRRI4399.7[m]CRRI4399.8[m]CWESTLAB4405.0[m]CRRI4405.0[m]SWCRRI4424.0[m]SWCRRI4446.0[m]SWCRRI4481.0[m]SWCRRI4494.5[m]SWCRRI4535.0[m]SWCRRI4548.0[m]SWCRRI4554.0[m]SWCRRI -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1347068421150119914281824205820582103211821482178223624942572264026552655273129203506355136683668373338053878387842114356435643934555 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.88 -
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]pdf0.16pdf0.34 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf3.37pdf35.90 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL4003763CST14292748CST14292705CST27643520CST35373781CST37894114CST38444516CST41314354CST43574554FDC CNL6534600HDT27364565ISF SONIC1344599RFT43654417RFT44164419 -
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 formasjonstestCONDUCTOR30196.036196.00.00LOTSURF.COND.20653.026655.01.72LOTINTERM.13 3/82737.017 1/22750.01.71LOTINTERM.9 5/83770.012 1/43786.01.99LOTOPEN HOLE4600.08 3/84600.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling2501.0836.0waterbased6501.1132.0waterbased15601.1165.0waterbased21801.2065.0waterbased28401.2365.0waterbased31601.2565.0waterbased38401.7567.0waterbased41501.8959.0waterbased45801.8860.0waterbased