6507/5-1
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Generell informasjon
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Brønnhistorie
GeneralThe purpose of the 6507/5-1 well was to test the Jurassic sandstones of the Donnatello prospect and potential Cretaceous sandstones. The prospect is located between the Norne and Heidrun fields, in the area of the Dønna Terrace in Nordland II, and about 200km off the coast of Helgeland in North Norway. The well was drilled to allow for future re-entry and re-completion as a producer.Operations and resultsWell 6507/5-1 was drilled with the semisubmersible rig Maersk Jutlander. Water based mud was used down to 1065, oil based mud from there to TD. The well was spudded on December 24th 1997, and TD was reached March 7th 1998. The well reached a TD of 4224 m MD in the Early Jurassic Åre formation. Gas condensate and oil were discovered in Jurassic sandstones of the Fangst and Båt groups, as well as additional oil discovered in sandstones of the Cretaceous Lange Formation. Six cores were cut in the Garn, Not, Ile, and Ror Formations from 3392.5 to 3542.7 m RKB. Another three cores were cut in the Ror, Tofte, Tilje, and Åre Formations from 3562 to 3698.6 m. Thirteen MDT samples containing variable proportions of gas, oil, and mud filtrate were taken in the Lange, Garn, Ile, and Tilje Formations while four MDT samples containing water were taken in the Åre Formation. Following the discovery, Donnatello was renamed Skarv and the well was suspended as an oil and gas discovery.TestingBefore testing the well was cleaned and displaced to a Calcium Chloride brine. Three separate cased hole drill stem tests were run. Two tests were conducted in the Jurassic and one in the Cretaceous Lange formation. DST1 in the Jurassic Tilje formation produced 628 m3 oil with 109,804 m3 of gas per day through a 15.87mm choke. DST2a in the Jurassic Garn formation produced 178m3 of oil with 741,460 m3 of gas per day through a 15.87mm choke. DST2b from the Jurassic Garn and Ile formations combined produced 148m3 of oil and 580,560m3 of gas per day through a 12.70mm choke. DST3 in the Cretaceous Lange formation produced 925m3 of oil and 222,155m3 of gas per day through a 14.28mm choke. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1080.004223.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet13392.53392.7[m ]23395.03422.1[m ]33422.13449.8[m ]43449.83470.9[m ]53470.93498.4[m ]63498.43542.7[m ]73562.03613.5[m ]83616.03645.6[m ]93645.03698.6[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]282.6Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTDST13607.003653.00OIL02.04.1998 - 07:35YESDSTDST23430.003442.00CONDENSATE13.04.1998 - 18:00YESDSTDST2A3494.003514.00CONDENSATE15.04.1998 - 21:30YESDSTDST32993.003001.00OIL26.04.1998 - 08:53YES -
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 formasjonstestCONDUCTOR30480.036496.00.00LOTSURF.COND.201053.0261065.01.67LOTINTERM.9 5/83199.012 1/43236.01.95LOTLINER73863.08 1/24224.00.00LOTOPEN HOLE4224.08 1/24224.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.03607365315.92.13430344215.92.23430351412.73.02993300114.3Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.08.00037.0002.119.00036.0002.222.0003.018.00042.000Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.06281090000.8570.7001752.11787410000.7590.67041642.21485800000.7670.67539263.09252220000.8290.670240 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]AIT DSI GR10533221AIT DSI GR32004220CMR27703120CMR200033503800IPLT10533223IPLT32004225MDT13823091MDT33813873MDT34063770MDT35824182MSCT13823199MSCT27153031MSCT32514132MWD CDR GR RES350485MWD CDR GR RES4961063MWD CDR GR RES32394224MWD DIR442496MWD RAB GR RES10693236OBDT28043192UBI30953187UBI31263210UBI32284210USIT28903085USIT31003700W VSP18002300ZO VSP15802180ZO VSP21804130 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet347347138118021802198719872032207620762523271627162718317831783194338033803434347635173517357735793688 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.69 -
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]pdf79.48 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3501.60kill mud3501.20spud mud4421.60kill mud4421.00spud mud4961.60kill mud4961.00spud mud5711.00spud mud5711.50kill mud10531.50kill mud10531.00spud mud10651.50kill mud10651.30spud mud10651.00sea water10651.40oil based31991.40oil based32351.40oil based32361.50oil based32411.40oil based34721.40oil based35421.40oil based39321.40oil based40851.46oil based42241.46oil based -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1440.0[m]DCRRI1500.0[m]DCRRI1560.0[m]DCRRI1560.0[m]SWCRRI1590.0[m]DCRRI1620.0[m]DCRRI1650.0[m]DCRRI1680.0[m]DCRRI1710.0[m]DCRRI1740.0[m]DCRRI1770.0[m]DCRRI1800.0[m]DCRRI1820.0[m]DCRRI1830.0[m]DCRRI1860.0[m]DCRRI1880.0[m]DCRRI1900.0[m]DCRRI1920.0[m]DCRRI1939.0[m]DCRRI1966.0[m]DCRRI1987.0[m]DCRRI2002.0[m]DCRRI2020.0[m]DCRRI2032.0[m]DCRRI2050.0[m]DCRRI2062.0[m]DCRRI2068.0[m]DCRRI2076.0[m]DCRRI2086.0[m]DCRRI2101.0[m]DCRRI2125.0[m]DCRRI2137.0[m]DCRRI2149.0[m]DCRRI2167.0[m]DCRRI2182.0[m]DCRRI2194.0[m]DCRRI2209.0[m]DCRRI2233.0[m]DCRRI2257.0[m]DCRRI2266.0[m]DCRRI2281.0[m]DCRRI2299.0[m]DCRRI2311.0[m]DCRRI2326.0[m]DCRRI2344.0[m]DCRRI2359.0[m]DCRRI2374.0[m]DCRRI2380.0[m]DCRRI2404.0[m]DCRRI2416.0[m]DCRRI2434.0[m]DCRRI2446.0[m]DCRRI2464.0[m]DCRRI2476.0[m]DCRRI2497.0[m]DCRRI2509.0[m]DCRRI2527.0[m]DCRRI2539.0[m]DCRRI2557.0[m]DCRRI2569.0[m]DCRRI2587.0[m]DCRRI2599.0[m]DCRRI2614.0[m]DCRRI2626.0[m]DCRRI2644.0[m]DCRRI2659.0[m]DCRRI2674.0[m]DCRRI2689.0[m]DCRRI2704.0[m]DCRRI2715.8[m]SWCRRI2725.0[m]DCRRI2734.0[m]DCRRI2749.0[m]DCRRI2769.0[m]SWCRRI2779.0[m]DCRRI2794.0[m]DCRRI2809.0[m]DCRRI2824.4[m]SWCRRI2839.0[m]DCRRI2854.0[m]DCRRI2865.0[m]SWCRRI2890.0[m]SWCRRI2899.0[m]DCRRI2914.0[m]DCRRI2929.0[m]DCRRI2949.0[m]SWCRRI2964.0[m]SWCRRI2974.0[m]DCRRI2992.5[m]SWCRRI3005.0[m]SWCRRI3021.5[m]SWCRRI3030.5[m]SWCRRI3044.0[m]SWCRRI3064.0[m]DCRRI3079.0[m]DCRRI3088.0[m]DCRRI3094.0[m]DCRRI3103.0[m]DCRRI3109.0[m]DCRRI3118.0[m]DCRRI3123.0[m]SWCRRI3146.5[m]SWCRRI3154.0[m]DCRRI3174.5[m]SWCRRI3192.0[m]SWCRRI3196.0[m]SWCRRI3198.5[m]SWCRRI3214.0[m]DCRRI3229.0[m]DCRRI3245.0[m]DCRRI3251.0[m]CRRI3268.0[m]CRRI3288.0[m]CRRI3300.0[m]CRRI3327.5[m]CRRI3338.0[m]CRRI3352.0[m]CRRI3360.0[m]CRRI3362.0[m]DCRRI3365.0[m]CRRI3368.0[m]DCRRI3370.0[m]CRRI3375.0[m]CRRI3384.0[m]DCRRI3392.0[m]DCRRI3395.7[m]CRRI3402.5[m]CRRI3417.8[m]CRRI3431.6[m]CRRI3433.1[m]CRRI3448.3[m]CRRI3456.3[m]CRRI3460.0[m]CRRI3465.0[m]CRRI3470.9[m]CRRI3473.0[m]CRRI3474.4[m]CRRI3477.0[m]CRRI3480.6[m]CRRI3482.9[m]CRRI3490.0[m]CRRI3500.3[m]CRRI3507.6[m]CRRI3515.1[m]CRRI3521.0[m]CRRI3523.4[m]CRRI3542.6[m]CRRI3567.5[m]CRRI3574.4[m]CRRI3575.2[m]CRRI3579.5[m]CRRI3585.1[m]CRRI3595.1[m]CRRI3601.7[m]CRRI3608.4[m]CRRI3617.9[m]CRRI3623.5[m]CRRI3633.6[m]CRRI3642.8[m]CRRI3647.8[m]CRRI3653.1[m]CRRI3655.6[m]CRRI3657.4[m]CRRI3673.7[m]CRRI3682.7[m]CRRI3690.8[m]CRRI3696.9[m]CRRI3707.0[m]DCRRI3716.0[m]DCRRI3724.0[m]CRRI3734.0[m]DCRRI3743.0[m]DCRRI3752.0[m]DCRRI3761.0[m]DCRRI3767.0[m]DCRRI3779.0[m]DCRRI3788.0[m]DCRRI3797.0[m]DCRRI3815.0[m]DCRRI3824.0[m]DCRRI3833.0[m]DCRRI3842.0[m]DCRRI3851.0[m]DCRRI3857.0[m]DCRRI3941.0[m]DCRRI3989.0[m]DCRRI3998.0[m]DCRRI4142.0[m]DCRRI4151.0[m]DCRRI4160.0[m]DCRRI4169.0[m]DCRRI4178.0[m]DCRRI4187.0[m]DCRRI4196.0[m]DCRRI