30/11-10 A
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Generell informasjon
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Brønnhistorie
GeneralWell 30/11-10 A was drilled as a geological sidetrack to 30/11-10 in order to appraise the Krafla discovery made by well 30/11-8 S in 2011. Krafla is located south of and close to the Krafla North discovery made by the 30/11-10 well, on the edge of the Horda Platform towards the Viking Graben. The primary objective was to reduce uncertainty in oil-in-place in Krafla and to verify communication with Krafla North. Secondary objective was to obtain high-quality fluid samples from Krafla Tarbert Formation.Operations and resultsWildcat well 30/11-10 A was kicked off from 2001 m in 30/11-10 on 28 December 2014. It was drilled with the semi-submersible installation Transocean Leader to TD at 3948 m (3696 m TVD) m in the Middle Jurassic Ness Formation. On 10 January 2015, at 3777 m in the 8 1/2" section, drilling was discontinued for 12 days due to damaged top drive and bad weather. Otherwise, no significant problem was encountered in the operations. The well was drilled with XP-07 oil based mud from kick-off to TD.Top Brent Group, Tarbert Formation was penetrated at 3610 m (3359.2 m TVD). Hydrocarbons were proven in the Tarbert Formation from 3654 m (3403 m TVD) with a main oil bearing sandstone between 3717 to 3731 m (3466 to 3480 m TVD). Pressure points and logs indicate an OWC around 3753 m (3502 m TVD). Shows were described in Tarbert and Ness formations.No cores were cut in the well. Pressures in Tarbert Formation are close to those seen in 30/11-10 Krafla North, but variable pressure measurements in Krafla North did not provide reliable gradients so communication within Tarbert between Krafla and Krafla North cannot be concluded. Pressures within the Ness Formation does not support communication between Krafla and Krafla North. MDT fluid samples were taken at 3655.5 m (oil), 3660.4 m (water), 3683.5 m (oil), 3693.5 m (oil), 3719.1 m (oil), 3764.3 m (water).The well was permanently abandoned on 13 February 2015 as an oil appraisal 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]2010.003948.00 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3547.0[m]DCPETROSTR3559.0[m]DCPETROS3571.0[m]DCPETROS3583.0[m]DCPETROS3595.0[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]DCPETROS3631.0[m]DCPETROS3640.0[m]DCPETROS3649.0[m]DCPETROS3658.0[m]DCPETROS3664.0[m]DCPETROS3676.0[m]DCPETROS3682.0[m]DCPETROS3694.0[m]DCPETROS3700.0[m]DCPETROS3709.0[m]DCPETROS3730.0[m]DCPETROS3736.0[m]DCPETROS3745.0[m]DCPETROS3751.0[m]DCPETROS3769.0[m]DCPETROS3781.0[m]DCPETROS3793.0[m]DCPETROS3805.0[m]DCPETROS3814.0[m]DCPETROS3820.0[m]DCPETROS3826.0[m]DCPETROS3832.0[m]DCPETROS3844.0[m]DCPETROS3853.0[m]DCPETROS3862.0[m]DCPETROS3868.0[m]DCPETROS3883.0[m]DCPETROS3895.0[m]DCPETROS3907.0[m]DCPETROS3919.0[m]DCPETROS3928.0[m]DCPETROS3940.0[m]DCPETROS3949.0[m]DCPETROS -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligMDT3693.500.00OILYESMDT3683.500.00OILYESMDT3719.000.00OILYES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet2001219421942259228223172392258226442644302434823539361036103858 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]AIT PEX HNGS34953955CMR RCS GR34293955MDT36553719MDT36603764MDT37193719MDT MINIDST36833683MWD - ARCVIS6 TELE35323948MWD - ARCVIS8 XCEED TELE20073532MWD - GWD TELE20012001NGI SS28653955XL ROCK36543760 -
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 formasjonstestCONDUCTOR30178.436184.00.00SURF.COND.20798.226807.01.35FITPILOT HOLE1652.012 1/41652.00.00LINER9 5/83529.012 1/43532.00.003535.03535.02.15FITOPEN HOLE3948.08 1/23948.00.00 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling26541.3520.0OBM-Low ECD32711.3520.0OBM-Low ECD33231.3015.0OBM-Low ECD33231.4631.0OBM-Low ECD33311.3519.0OBM-Low ECD33901.4629.0OBM-Low ECD33901.3520.0OBM-Low ECD34781.4629.0OBM-Low ECD34891.3521.0OBM-Low ECD35321.3923.0OBM-Low ECD35321.3923.0OBM-Low ECD35321.3519.0OBM-Low ECD36891.3721.0OBM-Low ECD37701.4022.0OBM-Low ECD38811.4531.0OBM-Low ECD39491.4625.0OBM-Low ECD