6407/9-8
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Generell informasjon
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Brønnhistorie
GeneralWildcat well 6407/9-8 was drilled on the Husmus East structure, situated east of the Draugen Field on the edge of the Trøndelag Platform on the Mid Norwegian Continental Shelf. The principal objective of the well was to test the hydrocarbon potential of the Late Jurassic Rogn Formation in a dip closure trap. Secondary objective was to test the potential for gas storage in the Rogn Formation and in the middle Jurassic Garn Formation. The well was also drilled to acquire additional stratigraphic information on the reservoir development of the Middle and Early Jurassic Ile and Tilje Formation.Operations and resultsWell 6407/9-8 was spudded with the semi-submersible installation West Vanguard on 14 August 1992 and drilled to TD at 2126 m in the Early Jurassic Tilje Formation. Operations went without significant problems. The well was drilled with seawater and bentonite down to 1120 m, with polymer/gypsum mud from 1120 m to 1582 m, and with KCl/polymer mud from 1582 m to TD.No potential reservoir zones were found above the Viking Group, which was penetrated from 1606.5 m to 1730 m. The Rogn Formation vas poorly developed as a thin (<1 m), well-cemented silty to very fine sandstone facies with low porosity and permeability. A well-developed Garn Formation in a sand facies vas encountered, with high porosities and permeabilities. The well vas terminated in sandstone of the Tilje Formation after penetration of Ile Formation sandstone. Both the Garn Formation and the Ile Formations appeared to be suitable for gas injection. The well was entirely water wet all through. This was evident from electrical logs, pressure gradients, and lack of shows on cores and cuttings. Post-well geochemical analyses of cores and cuttings confirmed general lack of migrated hydrocarbons. A total of seven cores were cut in the well with 105.95 m recovered. Cores 1 to 5 were cut from 1605 m to 1685 m in the Spekk and Rogn Formations. Cores 6 and 7 were cut from 1723 m to 1760.5 m in the Melke and Garn Formations. A dense FMT pressure-sampling programme confirmed a water-wet reservoir with a pressure gradient close to the theoretical gradient for the established Draugen Formation water. A number of attempts were made to take water samples at depths of 1731.5 m (Garn) and 1940 m (Ile). Some degree of filtrate contamination vas noted.The well was classified as dry and was suspended on 23 September 1992 as a possible future development well for the Draugen Field. It was re-entered on 14 August and taken in use as a gas injectorTestingNo 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]1130.002127.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11605.01622.1[m ]21623.01633.1[m ]31633.51642.0[m ]41650.01666.0[m ]51666.01685.0[m ]61723.01741.9[m ]71742.01758.7[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]106.2Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet2522524387587581296129613351530153015981606160616991730173018331887200620062053 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.48 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf4.38 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.46pdf0.15 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf43.91 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CORGUN286400CORGUN286400CORGUN11341578CORGUN15502110CORGUN16881852CORGUN18601933CORGUN19392098DIFL ACL BHC GR11101582DIFL BHC ACL GR2521113DIFL BHC ACL GR2521113DIFL BHC ACL GR11101582DIFL BHC ACL GR15531759DIFL BHC ACL GR15532120DIPLOG15502110DLL MLL GR15532115FMT16511920FMT17312096FMT18802105FMT19401940MWD252160SBT VDL GR14192086SPECTRALOG15532120VSP15532121ZDL CNL GR2521113ZDL CNL GR2521113ZDL CNL GR11101582ZDL CNL GR15531759ZDL CNL GR15532120ZDL FDC GR11101582 -
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 formasjonstestCONDUCTOR30309.736310.00.00LOTINTERM.18 5/81110.0261112.00.00LOTINTERM.13 3/81553.317 1/21555.01.62LOTINTERM.9 5/82118.012 1/42120.01.73LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3101.02200.0WATER BASED3161.01200.0WATER BASED4771.02200.0WATER BASED6741.02200.0WATER BASED11171.02200.0WATER BASED11171.02200.0WATER BASED11201.02200.0WATER BASED11251.3960.0WATER BASED14001.3960.0WATER BASED15821.3982.0WATER BASED15981.1337.0WATER BASED16501.1439.0WATER BASED16661.1440.0WATER BASED17021.1540.0WATER BASED17421.1539.0WATER BASED18001.1639.0WATER BASED19621.1438.0WATER BCSED21261.1438.0WATER BASED -
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]PDF0.28