33/12-9 S
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Generell informasjon
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Brønnhistorie
GeneralWell 33/12-9 S was drilled about seven kilometres south of the 33/12-8 S oil/gas discovery on Skinfaks Sør, between the Gullfaks Sør field and the UK border in the northern part of the North Sea. Skinfaks Sør was proven in 2002 and consists of several smaller structures. The main objective of the well was to explore a possible commercial oil leg in the Jurassic Tarbert Formation of the Brent Group, with the secondary objective of proving commercial volumes of hydrocarbons in the Ness and Etive/Rannoch Formations of the Brent Group.Operations and resultsWell 33/12-9 S was spudded with the semi-submersible installation COSL Pioneer on 28 October 2011 and drilled to TD at 3812 m (3746 m TVD) in Middle Jurassic sediments of the Drake Formation. The well was drilled vertical down to 2400 m and deviated from there. The deviation from vertical was built to ca 19 deg at 3100 m. This deviation was kept to TD. The well was drilled with hi-vis/bentonite sweeps down to 947 m, with Glydril mud from 2078 m to 3340 m, and Versatec oil based mud from 3340 m to TD.Top of primary target, Tarbert Formation sandstone, was encountered at 3420 m (3375.2 m TVD). The Tarbert Formation contained light oil from top and down to 3501 m (3452 m TVD) with a most likely OWC just one meter deeper than that. Oil shows with petroleum odour continued down to 3538. Weaker shows on sandstones, typically patchy moderate bright yellow direct fluorescence and slow streaming/blooming blue white-yellow white cut fluorescence with blue white residual fluorescence, continued down to 3795 m. No oil shows were recorded above top reservoir level.No cores were cut. MDT oil samples were taken at 3428.6 m and 3498.5 m. The samples were lightly contaminated by the drilling fluid (6-8wt %).The well was permanently abandoned on 8 January 2012 as an oil discovery.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]2080.003814.00 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2090.0[m]DCBIOSTRAT2110.0[m]DCBIOSTRAT2130.0[m]DCBIOSTRAT2150.0[m]DCBIOSTRAT2170.0[m]DCBIOSTRAT2190.0[m]DCBIOSTRAT2210.0[m]DCBIOSTRAT2230.0[m]DCBIOSTRAT2250.0[m]DCBIOSTRAT2270.0[m]DCBIOSTRAT2290.0[m]DCBIOSTRAT2310.0[m]DCBIOSTRAT2330.0[m]DCBIOSTRAT2350.0[m]DCBIOSTRAT2370.0[m]DCBIOSTRAT2390.0[m]DCBIOSTRAT2410.0[m]DCBIOSTRAT2430.0[m]DCBIOSTRAT2450.0[m]DCBIOSTRAT2470.0[m]DCBIOSTRAT2490.0[m]DCBIOSTRAT2510.0[m]DCBIOSTRAT2530.0[m]DCBIOSTRAT2550.0[m]DCBIOSTRAT2570.0[m]DCBIOSTRAT2590.0[m]DCBIOSTRAT2610.0[m]DCBIOSTRAT2630.0[m]DCBIOSTRAT2650.0[m]DCBIOSTRAT2670.0[m]DCBIOSTRAT2690.0[m]DCBIOSTRAT2710.0[m]DCBIOSTRAT2730.0[m]DCBIOSTRAT2750.0[m]DCBIOSTRAT2770.0[m]DCBIOSTRAT2790.0[m]DCBIOSTRAT2810.0[m]DCBIOSTRAT2830.0[m]DCBIOSTRAT2850.0[m]DCBIOSTRAT2870.0[m]DCBIOSTRAT2890.0[m]DCBIOSTRAT2910.0[m]DCBIOSTRAT2930.0[m]DCBIOSTRAT2950.0[m]DCBIOSTRAT2970.0[m]DCBIOSTRAT3010.0[m]DCBIOSTRAT3030.0[m]DCBIOSTRAT3040.0[m]DCBIOSTRAT3050.0[m]DCBIOSTRAT3060.0[m]DCBIOSTRAT3080.0[m]DCBIOSTRAT3090.0[m]DCBIOSTRAT3100.0[m]DCBIOSTRAT3110.0[m]DCBIOSTRAT3120.0[m]DCBIOSTRAT3130.0[m]DCBIOSTRAT3140.0[m]DCBIOSTRAT3150.0[m]DCBIOSTRAT3160.0[m]DCBIOSTRAT3170.0[m]DCBIOSTRAT3180.0[m]DCBIOSTRAT3190.0[m]DCBIOSTRAT3200.0[m]DCBIOSTRAT3210.0[m]DCBIOSTRAT3220.0[m]DCBIOSTRAT3230.0[m]DCBIOSTRAT3240.0[m]DCBIOSTRAT3250.0[m]DCBIOSTRAT3260.0[m]DCBIOSTRAT3270.0[m]DCBIOSTRAT3280.0[m]DCBIOSTRAT3290.0[m]DCBIOSTRAT3300.0[m]DCBIOSTRAT3310.0[m]DCBIOSTRAT3320.0[m]DCBIOSTRAT3330.0[m]DCBIOSTRAT3340.0[m]DCBIOSTRAT3559.0[m]DCBIOSTRAT3562.0[m]DCBIOSTRAT3565.0[m]DCBIOSTRAT3568.0[m]DCBIOSTRAT3571.0[m]DCBIOSTRAT3574.0[m]DCBIOSTRAT3577.0[m]DCBIOSTRAT3580.0[m]DCBIOSTRAT3583.0[m]DCBIOSTRAT3586.0[m]DCBIOSTRAT3589.0[m]DCBIOSTRAT3592.0[m]DCBIOSTRAT3595.0[m]DCBIOSTRAT3598.0[m]DCBIOSTRAT3601.0[m]DCBIOSTRAT3604.0[m]DCBIOSTRAT3607.0[m]DCBIOSTRAT3610.0[m]DCBIOSTRAT3613.0[m]DCBIOSTRAT3616.0[m]DCBIOSTRAT3619.0[m]DCBIOSTRAT3622.0[m]DCBIOSTRAT3625.0[m]DCBIOSTRAT3628.0[m]DCBIOSTRAT3631.0[m]DCBIOSTRAT3634.0[m]DCBIOSTRAT3637.0[m]DCBIOSTRAT3640.0[m]DCBIOSTRAT3643.0[m]DCBIOSTRAT3646.0[m]DCBIOSTRAT3649.0[m]DCBIOSTRAT3652.0[m]DCBIOSTRAT3655.0[m]DCBIOSTRAT3658.0[m]DCBIOSTRAT3661.0[m]DCBIOSTRAT3664.0[m]DCBIOSTRAT3667.0[m]DCBIOSTRAT3670.0[m]DCBIOSTRAT3673.0[m]DCBIOSTRAT3676.0[m]DCBIOSTRAT3679.0[m]DCBIOSTRAT3682.0[m]DCBIOSTR3685.0[m]DCBIOSTR3688.0[m]DCBIOSTR3691.0[m]DCBIOSTR3694.0[m]DCBIOSTR3697.0[m]DCBIOSTR3700.0[m]DCBIOSTR3703.0[m]DCBIOSTR3706.0[m]DCBIOSTR3709.0[m]DCBIOSTR3712.0[m]DCBIOSTR3715.0[m]DCBIOSTR3718.0[m]DCBIOSTR3721.0[m]DCBIOSTR3724.0[m]DCBIOSTR3727.0[m]DCBIOSTR3730.0[m]DCBIOSTR3733.0[m]DCBIOSTR3736.0[m]DCBIOSTR3739.0[m]DCBIOSTR3742.0[m]DCBIOSTR3745.0[m]DCBIOSTR3748.0[m]DCBIOSTR3751.0[m]DCBIOSTR3754.0[m]DCBIOSTR3757.0[m]DCBIOSTR3763.0[m]DCBIOSTR3766.0[m]DCBIOSTR3768.0[m]DCBIOSTR3769.0[m]DCBIOSTR3772.0[m]DCBIOSTR3775.0[m]DCBIOSTR3778.0[m]DCBIOSTR3781.0[m]DCBIOSTR3784.0[m]DCBIOSTR3787.0[m]DCBIOSTR3790.0[m]DCBIOSTR3793.0[m]DCBIOSTR3796.0[m]DCBIOSTR3799.0[m]DCBIOSTR3805.0[m]DCBIOSTR3808.0[m]DCBIOSTR3811.0[m]DCBIOSTR3814.0[m]DCBIOSTR -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1607989121785178518461970197029752984298430063420342035343706372737753775 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL USIT29003336MDT SAMPLE33833450MWD - ARCVRES6 POWER TELE33393812MWD - ARCVRES8 VADN8 PD TELE20713340MWD - ARCVRES9 POWER9472078MWD - ARCVRS9 TELE212947PEX DSI AIT33383804PS HY GR33783680 -
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 formasjonstestCONDUCTOR30208.036212.00.00LOTSURF.COND.20938.526947.01.38LOTINTERM.13 3/82071.517 1/22078.01.86LOTINTERM.9 5/83339.012 1/43340.02.04LOTOPEN HOLE3812.08 1/23812.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling15101.3514.0KCl/Polymer/Glycol21061.3633.0Versatec27801.5236.0Versatec32221.5137.0Versatec33181.6247.0Versatec33401.5944.0Versatec33401.5236.0Versatec33431.5944.0Versatec37941.6247.0Versatec38121.6231.0Versatec38121.6247.0Versatec