34/8-2
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Generell informasjon
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Brønnhistorie
GeneralWell 34/8-2 was drilled ca 5 km east of the 34/8-1 Visund Discovery well in the northern North Sea. It was drilled on the northern compartment of the same structure as the 34/8-1 well, a rotated fault block flanking the Viking Graben. This northern compartment ("A-North") might be separate from the southern by a sealing fault. The main objective of well 34/8-2 was to prove hydrocarbons in the Stafjord Formation of the A-North compartment. The planned TD was ca 50 m into the Triassic Lunde Formation.Operations and resultsWildcat well 34/8-2 was spudded with the semi-submersible installation Polar Pioneer on 4 October 1986 and drilled to TD at 3240 m in the Late Triassic Lunde Formation. The rig had to be moved and the well was re-spudded twice before the 36" hole could be finished. Otherwise no significant problems were encountered in the operations. The well was drilled with seawater and hi-vis pills down to 1205 m and with KCl/polymer mud from 1205 m to TD.A unit assigned to the Late Jurassic Draupne Formation was penetrated from 2896 to 2912.5 m. Below Draupne a complete Dunlin Group (Drake-Cook-Burton-Amundsen) was penetrated down to 3001 m where the Statfjord Formation was encountered. The target Statfjord Formation was water bearing, and the only hydrocarbon indications in the well were oil shows on sandstone stringers in the Shetland Formation and weak fluorescence on Draupne Formation claystoneOne core was taken in the well in the upper part of the Statfjord Formation from 3008 - 3020 m. The recovery was 11.75 meters, 98%. RFT pressure recordings were performed through the Statfjord Formation and the Lunde Formation. The pressure tests in the Statfjord Formation indicated very good permeability and gave a water gradient of 0.99 g/cc. Furthermore. Comparison with 34/8-1 pressures indicated a sealing fault between the A-South and the A-North segments. No wire line fluid samples were taken.The well was permanently abandoned on 17 November 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]1220.003240.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13008.03019.8[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]11.8Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
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 formasjonstestCONDUCTOR30462.036472.00.00LOTSURF.COND.201177.0261205.01.66LOTINTERM.13 3/82680.017 1/22700.01.80LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL00DIL LSS GR SP11773228LDL CNL CAL GR11773228MWD4621177NGT26803229RFT30033218SHDT26803231VSP10003235 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet37611141160181718171853198819882218269928822897289729132913292329342937300130513051 -
Geokjemisk informasjon
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Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf2.19pdf12.59 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.22pdf0.26 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3761.7034.012.0WATER BASED17.11.19863911.0599.099.0WATER BASED05.10.19864201.7034.012.0WATER BASED17.11.19864281.05WATER BASED07.10.19864621.0599.099.0WATER BASED06.10.19864621.0599.099.0WATER BASED05.10.19864721.05WATER BASED08.10.19864831.05WATER BASED14.10.19869821.05WATER BASED14.10.198610481.05WATER BASED09.10.198612001.05WATER BASED14.10.198612001.20WATER BASED13.10.198612051.20WATER BASED14.10.198612051.2014.08.0WATER BASED17.10.198612051.159.04.0WATER BASED16.10.198615851.3020.012.0WATER BASED20.10.198618481.3620.013.0WATER BASED20.10.198621351.3620.012.0WATER BASED20.10.198622811.4024.010.0WATER BASED20.10.198624521.4425.010.0WATER BASED21.10.198624611.4424.09.0WATER BASED22.10.198625151.7034.012.0WATER BASED17.11.198625621.4429.011.0WATER BASED23.10.198626091.4429.09.0WATER BASED26.10.198627001.4426.08.0WATER BASED26.10.198627001.4727.09.0WATER BASED26.10.198627001.6030.07.0WATER BASED28.10.198627001.4727.09.0WATER BASED27.10.198627051.6023.07.0WATER BASED29.10.198627641.6026.09.0WATER BASED30.10.198628111.6027.09.0WATER BASED02.11.198628281.6028.010.0WATER BASED02.11.198628751.6030.011.0WATER BASED02.11.198629441.7028.09.0WATER BASED03.11.198629951.7029.09.0WATER BASED04.11.198630201.7029.010.0WATER BASED05.11.198630381.7032.012.0WATER BASED06.11.198630651.7033.012.0WATER BASED11.11.198631381.7033.011.0WATER BASED11.11.198631551.7030.08.0WATER BASED11.11.198632031.7032.011.0WATER BASED09.11.198632401.7030.010.0WATER BASED12.11.198632401.7030.010.0WATER BASED13.11.198632401.7032.010.0WATER BASED14.11.1986 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2888.0[m]SWCHYDRO?2898.5[m]SWC(ALLE)2902.0[m]SWC2905.0[m]SWC2908.0[m]SWC2911.0[m]SWC2919.0[m]SWC2935.0[m]SWC2974.0[m]SWC2990.0[m]SWC3053.0[m]SWC3077.0[m]SWC3111.0[m]SWC3135.0[m]SWC