6507/12-3
Eksport: PDF
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Generell informasjon
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Brønnhistorie
GeneralWildcat well 6507/12-3 was drilled east of and near to the Midgard field on Haltenbanken. The main objective was to test the W-1 prospect located on the western margin of the Trøndelag Platform, on the eastern edge of the Ellingråsa Graben. The structure was seen as a domed N-S striking horst restricted by the main platform fault to the west and a related antithetic fault to the east with throws of approximately 350 m and 100 m, respectively. Primary target was the Middle Jurassic sandstones of the Fangst Group. A secondary target was the Lower Jurassic sandstones of the Tilje Formation, and to penetrate the coal horizon in the Åre Formation. Proposed TD was at 2700 m.Operations and resultsWell 6507/12-3 was spudded with Wi1h. Wi1helmsen semi-submersible installation Treasure Saga on 16 August 1985 and drilled to TD at 2600 m in the Early Jurassic Åre Formation. The well was drilled with spud mud down to 380 m, with gel mud from 380 m to 920 m, with Gypsum / Polymer mud from 920 m to 1949 m, and with a gel mud again from 1949 m to TD. A gas flow occurred between the 20" and 30" casing. The casing was perforated at 705 m and cement successfully squeezed. Gas flow continued to be a problem and the 13 3/8" casing was also perforated and cement squeeze was performed in both the lower and upper perforations.The Quaternary/Tertiary Sequence was 1596 m thick and consisted predominantly of marine claystones. Cretaceous was represented by a 75 m sequence of Springar Formation. Two metre of Spekk Formation was encountered at 1937 m, followed by 33 m of Melke Formation. The Fangst Group was penetrated at 1974 m, 20 m above the prognosed depth. MWD displayed fall in resistivity and the formation was considered dry. All Jurassic sandstone sequences were water bearing. A number of gas peaks were recorded from 474 m to 804 m, but there were no oil shows observed in the well.Two cores were attempted in the interval 1981 m to 2016 m in the Garn Formation, but only the 1981 to 1988.5 m interval of the first was recovered. A third core was cut for source rock studies in the interval 2503.5 m to 2521.5 m in the Åre Formation. The well was permanently abandoned on 13 September 1985 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]390.002600.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11981.01988.5[m ]32503.52519.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]23.0Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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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 formasjonstestCONDUCTOR30375.036380.00.00LOTSURF.COND.20905.026920.01.41LOTINTERM.13 3/81949.017 1/21965.01.82LOTOPEN HOLE2600.012 1/42600.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]ACBL7001948CDL CNL GR19352596COREGUN19682583DIFL LSBHC CDL GR COREGUN9041963DIFL LSBHC GR19232596DIFL TEMP GR266886DIPLOG19482596FMT19732482GR270380MWD - GR RES DIR375920MWD - GR RES DIR10282600VSP2702591 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet2662661311142514251770177018231862186219371937193919721972201520322098209821862351 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.35 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf1.18 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf48.65 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.28pdf0.23 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling6331.159.030.0WATER BASED21.08.19859201.178.042.0WATER BASED21.08.198510281.1543.016.0WATER BASED27.08.198513381.1542.018.0WATER BASED28.08.198516351.2545.019.0WATER BASED29.08.198519651.3047.014.0WATER BASED30.08.198519651.3555.018.0WATER BASED02.09.198519651.2716.017.0WATER BASED05.09.198519661.2716.017.0WATER BASED09.09.198521181.2317.017.0WATER BASED09.09.198522001.2017.016.0WATER BASED09.09.1985 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1780.0[m]SWCSAGA1800.0[m]SWCSAGA1820.0[m]DCSAGA1823.0[m]SWCSAGA1830.0[m]SWCSAGA1840.0[m]SWCSAGA1850.0[m]SWCSAGA1858.0[m]SWCSAGA1863.0[m]SWCSAGA1868.0[m]SWCSAGA1882.0[m]SWCSAGA1892.0[m]SWCSAGA1907.1[m]SWCSAGA1925.0[m]DCSAGA1940.0[m]DCSAGA1955.0[m]DCSAGA1968.0[m]DCSAGA1981.9[m]CSAGA1989.0[m]DCSAGA1998.0[m]DCSAGA2008.0[m]SWCSAGA2027.0[m]SWCSAGA2037.0[m]SWCSAGA2058.0[m]SWCSAGA2080.0[m]SWCSAGA2102.0[m]SWCSAGA2111.0[m]SWCSAGA2133.0[m]SWCSAGA2147.0[m]SWCSAGA2160.0[m]DCSAGA2185.0[m]SWCSAGA2203.0[m]SWCSAGA2212.0[m]SWCSAGA2230.0[m]SWCSAGA2244.0[m]DCSAGA2268.0[m]SWCSAGA2297.0[m]SWCSAGA2313.0[m]DCSAGA2331.0[m]DCSAGA2346.0[m]DCSAGA2358.0[m]DCSAGA2376.0[m]DCSAGA2383.0[m]SWCSAGA2393.0[m]SWCSAGA2410.0[m]SWCSAGA2424.0[m]DCSAGA2439.0[m]DCSAGA2450.0[m]SWCSAGA2462.0[m]SWCSAGA2472.5[m]SWCSAGA2478.0[m]DCSAGA2499.0[m]DCSAGA2503.5[m]CSAGA2514.0[m]SWCSAGA2519.8[m]CSAGA2529.0[m]DCSAGA2544.0[m]DCSAGA2557.0[m]SWCSAGA2574.0[m]SWCSAGA2592.0[m]DCSAGA2600.0[m]DCSAGA