34/5-2 S
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Generell informasjon
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Brønnhistorie
GeneralWell 34/5-2 S was drilled to test the Tyttebær prospect on Tampen Spur, 8 km south-west of the Knarr discovery in the northern North Sea. The primary objective was to test the hydrocarbon potential in the Early Jurassic Cook Formation.Operations and resultsWildcat well 34/5-2 S was spudded with the semi-submersible installation Scarabeo 8 on 31 May 2018 and drilled to TD at 3711 m in the Early Jurassic Amundsen Formation. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis sweeps down to 1070 m, with KCl/GEM/polymer mud from 1070 m to 2133 m, and with Enviromul oil-based mud from 2133 m to TD.The Cook Formation was penetrated from 3588 to 3674 m and consisted of fine to very fine-grained sandstone and siltstone. About 50 metres of Cook was reservoir sandstone with generally poor to moderate reservoir quality. Shows (fluorescence and cut) were observed in the Cook Formation, but post-well geochemical analyses indicated the fluorescence to come from the oil-based mud used in the well. The overlying Drake Formation is indicated by kerogen analysis to have source rock quality. Vitrinite reflectance in Drake is around 0.8%Ro, i.e. oil-window maturity.No cores were cut. No fluid sample was taken.The well was permanently abandoned on 4 July 2018 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]1080.003711.00 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3496.0[m]DCPETROSTR3499.0[m]DCPETROS3502.0[m]DCPETROS3505.0[m]DCPETROS3508.0[m]DCPETROS3511.0[m]DCPETROS3514.0[m]DCPETROS3517.0[m]DCPETROS3520.0[m]DCPETROS3523.0[m]DCPETROS3526.0[m]DCPETROS3529.0[m]DCPETROS3532.0[m]DCPETROS3535.0[m]DCPETROS3538.0[m]DCPETROS3541.0[m]DCPETROS3544.0[m]DCPETROS3547.0[m]DCPETROS3550.0[m]DCPETROS3553.0[m]DCPETROS3556.0[m]DCPETROS3559.0[m]DCPETROS3562.0[m]DCPETROS3565.0[m]DCPETROS3568.0[m]DCPETROS3571.0[m]DCPETROS3574.0[m]DCPETROS3577.0[m]DCPETROS3580.0[m]DCPETROS3583.0[m]DCPETROS3586.0[m]DCPETROS3589.0[m]DCPETROS3592.0[m]DCPETROS3595.0[m]DCPETROS3598.0[m]DCPETROS3601.0[m]DCPETROS3604.0[m]DCPETROS3607.0[m]DCPETROS3610.0[m]DCPETROS3613.0[m]DCPETROS3616.0[m]DCPETROS3619.0[m]DCPETROS3622.0[m]DCPETROS3625.0[m]DCPETROS3628.0[m]DCPETROS3634.0[m]DCPETROS3637.0[m]DCPETROS3640.0[m]DCPETROS3643.0[m]DCPETROS3646.0[m]DCPETROS3649.0[m]DCPETROS3652.0[m]DCPETROS3655.0[m]DCPETROS3658.0[m]DCPETROS3661.0[m]DCPETROS3664.0[m]DCPETROS3667.0[m]DCPETROS3670.0[m]DCPETROS3673.0[m]DCPETROS3676.0[m]DCPETROS3679.0[m]DCPETROS3682.0[m]DCPETROS3685.0[m]DCPETROS3688.0[m]DCPETROS3691.0[m]DCPETROS3694.0[m]DCPETROS3697.0[m]DCPETROS3700.0[m]DCPETROS3703.0[m]DCPETROS3706.0[m]DCPETROS3709.0[m]DCPETROS3711.0[m]DCPETROS -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet421130814251906190619401954204920492307328534723472348134813499349935883674 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]MWD - DIR FTPWD GR RES SON DEN N34933711MWD - DIR HO0498MWD - DIR PWD4981070MWD - DIR PWD GR RES SON10702133MWD - DIR PWD GR RES SON GP21333493 -
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 formasjonstestCONDUCTOR36498.042498.00.00SURF.COND.201063.7261070.01.56LOTINTERM.13 5/82121.817 1/22133.01.81LOTINTERM.9 7/83491.012 1/43493.02.03LOTOPEN HOLE3711.08 1/23711.00.00 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4471.03Seawater4601.50Fresh Water Bentonite4701.50Kill Mud4801.04Fresh Water Bentonite10701.03Seawater10701.50Kill mud10701.04Sweeps10731.37KCl/Polymer/GEM WBM20071.41KCl/Polymer/GEM21331.41KCl/Polymer/GEM21331.46Oil Based24001.50Oil Based31011.50Oil Based31951.03Seawater32001.03Seawater32001.00Oil Based34261.55Oil Based34521.81Oil Based34931.55Oil Based35151.81Oil Based37111.81Oil Based