2/6-1
Eksport: PDF
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Generell informasjon
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Brønnhistorie
GeneralWell 2/6-1 is located on the north eastern slope of the Mandal High between the Søgne Basin and the Central Graben in the North Sea. It was drilled on a salt induced anticlinal structure. The objective of the well was to investigate the sedimentary section down to the Permian salt, and particularly to test the hydrocarbon potential of the Tertiary and Mesozoic sands.Operations and resultsWildcat well 2/6-1was spudded with the semi-submersible installation Ocean Viking on 21 April 1969 and drilled to TD at 3336 m in salt belonging to the Late Permian Zechstein Group. Down to 615 m the well was drilled with sea water as drilling fluid, and the returns were to the sea floor. From 615 m to TD a sea water/LFC type mud was used. The only significant drilling problem occurred at a depth of 3220 m in the top of the Mesozoic sands when the well kicked 6.35 m3 of water associated with a gas show. The flow rate was 20 m3/hr and the pressure was estimated to 480 kg/cm2. The kick was killed with a 1.65 g/cm3 mud.Forty meter of Middle and Late Jurassic sands revealed good reservoir properties, but contained no hydrocarbons. Average reservoir properties in these sands were 20% porosity and 140 mD permeability. The Tertiary sediments contained very little sand. Shows were described as follows: in the Paleocene siltstones and shales, a small chloroform cut was obtained on sidewall samples and in the Mesozoic sands, traces of bitumen occur and a chloroform cut was obtained. One conventional core of Jurassic sandstone was cut at 3223 to 3235 m. No wire line fluid samples were taken.The well was permanently abandoned on 30 May 1969 as a dry well.TestingNo drill stem test was performed. -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13223.93232.5[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]8.6Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet9814002531253125462579262726442644271929503056305631023102321732173233325632563302 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.42 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf0.47 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.19 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf3.93pdf1.81 -
Dokumenter – Sokkeldirektoratets publikasjoner
Dokumenter – Sokkeldirektoratets publikasjoner Dokument navnDokument formatDokumentstørrelse [MB]pdf11.08pdf49.98 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL150547CDM5923313GR98592IES5923334SL BHC GR5923334TEMP502070 -
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 formasjonstestCONDUCTOR30125.036127.00.00LOTSURF.COND.13 3/8587.017 1/2600.00.00LOTINTERM.9 5/82100.012 1/42107.00.00LOTOPEN HOLE3336.08 1/23336.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling12381.38waterbased21071.55waterbased30911.55waterbased33361.63waterbased -
Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet3232.00[m ]3225.00[m ]3228.00[m ]3224.00[m ]3232.00[m ]2350.00[m ]2580.00[m ]