34/10-33 A
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Generell informasjon
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Brønnhistorie
GeneralWell 34/10-33 A is a sidetrack from appraisal well 34/10-33, which found oil in a down-to situation in the Gullfaks South Discovery. The main objectives were to locate the gas-oil contact in the Tarbert Formation and the oil-water contact, which was not seen in the primary well. Further objectives were to acquire more pressure data over the reservoir in order to evaluate if the pressure shift in the oil zone seen in the primary well could be explained by tight faults and/or a lateral continuous barrier within in the Ness Formation, and also to test if the Tarbert and Ness formations were in a common pressure regime. Finally, the well should provide water samples from the Brent Group and gather information for an optimal placing of a horizontal test well as a new sidetrack from well 34/10-33.Operations and resultsWell 34/10-33A was kicked off on 15 December 1988 from the vertical well 34/10-33 at 2698 m. The sidetrack was drilled to TD at 3851 m in the Middle Jurassic Rannoch Formation using the semi-submersible installation West Delta.Due to severe technical problems during drilling, the logging programme was not fulfilled, and several of the well objectives could not be met. The well was drilled with gel/lignosulphonate/lignite mud from kick-off to TD.The Brent Group was encountered at 3347 m. The logs showed a gas/oil contact at 3427 m (3295 m TVD MSL) in the Tarbert Formation and suggested an oil/water contact at ca 3625 m (3430 m TVD MSL) in the Ness Formation. In addition the well encountered a thin hydrocarbon bearing sand layer 3040 m (3001 m TVD MSL) in the Draupne Formation.No cores were cut in this well and no wire line pressure points or fluid samples were acquired due to the technical difficulties.The well bore was plugged back and abandoned on 3 February 1989 as an oil and gas appraisal.TestingNo drill stem test was performed. -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie3070.0[m]DCGEOCH3080.0[m]DCGEOCH3090.0[m]DCGEOCH3100.0[m]DCGEOCH3110.0[m]DCGEOCH3120.0[m]DCGEOCH3130.0[m]DCGEOCH3140.0[m]DCGEOCH3150.0[m]DCGEOCH3160.0[m]DCGEOCH3170.0[m]DCGEOCH3180.0[m]DCGEOCH3190.0[m]DCGEOCH3200.0[m]DCGEOCH3210.0[m]DCGEOCH3220.0[m]DCGEOCH3230.0[m]DCGEOCH3240.0[m]DCGEOCH3250.0[m]DCGEOCH3260.0[m]DCGEOCH3270.0[m]DCGEOCH3280.0[m]DCGEOCH3290.0[m]DCGEOCH3300.0[m]DCGEOCH3310.0[m]DCGEOCH3320.0[m]DCGEOCH3330.0[m]DCGEOCH3340.0[m]DCGEOCH3351.0[m]DCGEOCH -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1639159569801035114512531520156816161827182719072055205523503030303030343034307733473347345137473758 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.21pdf0.17 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf1.08pdf35.11 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]ACBL VDL GR25953330CDL CN CAL SPL27033213CDL CN CAL SPL29903075DIFL ACL GR27033852DLL MLL GR27033217FMT GR30393041MWD - GR RES NEU DEN26963476 -
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 formasjonstestCONDUCTOR30225.036226.00.00SURF.COND.20459.026466.01.43LOTINTERM.13 3/81828.017 1/21844.01.53LOT2698.02698.01.83LOTLINER73340.08 1/23851.00.00 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling26961.4715.06.5WATER BASED19.12.198827041.4740.013.5WATER BASED28.12.198827611.4728.08.0WATER BASED28.12.198828231.4720.07.0WATER BASED28.12.198828531.4721.08.0WATER BASED28.12.198828831.2613.04.5WATER BASED29.12.198829521.2617.04.0WATER BASED02.01.198930251.3318.08.5WATER BASED02.01.198931051.3917.07.5WATER BASED02.01.198931691.4121.011.0WATER BASED02.01.198932191.4522.08.5WATER BASED03.01.198932761.4519.08.5WATER BASED04.01.198933101.4520.07.0WATER BASED05.01.198933201.5029.012.0WATER BASED19.01.198933301.6025.07.0WATER BASED20.01.198933401.6023.06.5WATER BASED25.01.198933431.6024.06.5WATER BASED24.01.198933451.6025.06.0WATER BASED24.01.198933701.4822.06.5WATER BASED06.01.198934701.4620.05.5WATER BASED09.01.198935111.4416.04.5WATER BASED09.01.198937451.4417.04.5WATER BASED09.01.198937471.4417.04.5WATER BASED10.01.198938511.4419.04.0WATER BASED11.01.198938511.4417.04.0WATER BASED18.01.198938511.4420.03.8WATER BASED13.01.1989 -
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]pdf0.22