6507/11-6
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Generell informasjon
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Brønnhistorie
GeneralExploration well 6507/11-6 was drilled on the Colette structure, a downfaulted structure west of the Midgard Field in the Haltenbanken area. The primary objectives of the well were to test the hydrocarbon potential of the Middle Jurassic Garn and Ile Formations. A stratigraphical trap at top Lysing Formation level and possible hydrocarbon trapping in the uppermost part of the Early Jurassic Tilje were secondary targets.Operations and resultsWildcat well 6507/11-6 was spudded with the semi-submersible installation Transocean Arctic on 30 June 2001 and drilled to TD at 3440 m in Late Jurassic sediments of the Åre Formation. The 36" and 26" hole sections down to 489 m were drilled with seawater, the 17 1/2" section down to 1283 m with water-based KCL mud, and the remaining 12 1/4" and 8 1/2" hole down to TD was drilled with Versavert oil-based drilling mud. No shallow gas was encountered in the well, in accordance with the weak shallow gas warning in the pre-drill well documentation.The main result of the well was the discovery of a 30 m column of gas from the top of the Middle Jurassic Garn Formation at 3030 m. A gas-water contact in the Garn Formation was interpreted at 3059.5 m (3035.0 m TVD MSL). A pressure gradient of 0.22 g/cc (similar to Midgard) within the gas zone was defined by good quality MDT pressure measurements. Pressure data indicated small pressure barriers between the Garn, Ile, and Tilje Formations. However, the sandstones in lower part of the Garn Formation as well as the sandstones in the Ile, Tilje and Åre Formations were all water bearing. There were no Lysing Formation sandstones in the well position.One core was cut covering 27.6 m of the 47 m thick Garn Formation. The core contained almost 100% clean sandstone and the reservoir quality was excellent. There were very good reservoir quality sandstones also in the Ile, Tilje and Åre Formations. A total of 27 rotary sidewall cores were recovered (100% recovery) from the Jurassic section. Fluid samples were obtained from three levels within the Garn Formation.The well was permanently abandoned on 8 July 2001 as a minor gas discovery.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]460.003440.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13036.03063.7[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]27.7Borekjerner 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 formasjonstestCONDUCTOR30375.036375.00.00LOTSURF.COND.20454.026459.01.41LOTINTERM.13 3/81602.017 1/21608.01.81LOTINTERM.9 5/82913.012 1/41917.01.45LOTOPEN HOLE3340.08 1/23340.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CMST GR29823398DSI GR ACTS20753440MDT GR - PRESS30343398MDT GR - SAMPLE30343075MWD315377MWD - CDR3771608MWD - CDR ISON CDN16082917MWD - VISION ADN RAB29173440ZO VSP DUAL CSAT21403400 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet315315139215421542202220222102216221622243245226792679287028852885298330303030307730943160316032613387 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf2.90 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB].PDF7.47.pdf5.80 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4591.03WATER BASED12501.6036.0OIL BASED16081.3015.0WATER BASED22421.6038.0OIL BASED29171.6043.0OIL BASED33851.2525.0OIL BASED -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie460.0[m]DCRRI500.0[m]DCRRI540.0[m]DCRRI580.0[m]DCRRI620.0[m]DCRRI660.0[m]DCRRI700.0[m]DCRRI740.0[m]DCRRI780.0[m]DCRRI1380.0[m]DCRRI1540.0[m]DCRRI1580.0[m]DCRRI1620.0[m]DCRRI1660.0[m]DCRRI1700.0[m]DCRRI1740.0[m]DCRRI1780.0[m]DCRRI1820.0[m]DCRRI1860.0[m]DCRRI1900.0[m]DCRRI1940.0[m]DCRRI1980.0[m]DCRRI2020.0[m]DCRRI2060.0[m]DCRRI2100.0[m]DCRRI2140.0[m]DCRRI2170.0[m]DCRRI2190.0[m]DCRRI2230.0[m]DCRRI2250.0[m]DCRRI2270.0[m]DCRRI2290.0[m]DCRRI2310.0[m]DCRRI2330.0[m]DCRRI2350.0[m]DCRRI2370.0[m]DCRRI2390.0[m]DCRRI2410.0[m]DCRRI2430.0[m]DCRRI2450.0[m]DCRRI2470.0[m]DCRRI2490.0[m]DCRRI2510.0[m]DCRRI2530.0[m]DCRRI2550.0[m]DCRRI2570.0[m]DCRRI2590.0[m]DCRRI2610.0[m]DCRRI2630.0[m]DCRRI2650.0[m]DCRRI2670.0[m]DCRRI2690.0[m]DCRRI2710.0[m]DCRRI2730.0[m]DCRRI2750.0[m]DCRRI2770.0[m]DCRRI2790.0[m]DCRRI2810.0[m]DCRRI2830.0[m]DCRRI2850.0[m]DCRRI2870.0[m]DCRRI2890.0[m]DCRRI2910.0[m]DCRRI2930.0[m]DCRRI2950.0[m]DCRRI2970.0[m]DCRRI2985.0[m]DCRRI2995.0[m]DCRRI3005.0[m]DCRRI3015.0[m]DCRRI3025.0[m]DCRRI3030.0[m]DCRRI3035.0[m]DCRRI3042.6[m]DCRRI3065.0[m]DCRRI3070.0[m]DCRRI3075.0[m]DCRRI3080.0[m]DCRRI3085.0[m]DCRRI3090.0[m]DCRRI3095.0[m]DCRRI3100.0[m]DCRRI3105.0[m]DCRRI3110.0[m]DCRRI3115.0[m]DCRRI3120.0[m]DCRRI3125.0[m]DCRRI3130.0[m]DCRRI3135.0[m]DCRRI3140.0[m]DCRRI3145.0[m]DCRRI3150.0[m]DCRRI3155.0[m]DCRRI3165.0[m]DCRRI3175.0[m]DCRRI3185.0[m]DCRRI3195.0[m]DCRRI3205.0[m]DCRRI3215.0[m]DCRRI3225.0[m]DCRRI3235.0[m]DCRRI3245.0[m]DCRRI3255.0[m]DCRRI3265.0[m]DCRRI3275.0[m]DCRRI3285.0[m]DCRRI3295.0[m]DCRRI3305.0[m]DCRRI3315.0[m]DCRRI3325.0[m]DCRRI3335.0[m]DCRRI3345.0[m]DCRRI3355.0[m]DCRRI3365.0[m]DCRRI3375.0[m]DCRRI3385.0[m]DCRRI3395.0[m]DCRRI3405.0[m]DCRRI3415.0[m]DCRRI3425.0[m]DCRRI3435.0[m]DCRRI