16/10-1
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Generell informasjon
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Brønnhistorie
GeneralWell 16/10-1 was the first well drilled in block 16/10 operated by Norsk Agip. Among the various structures defined within block 16/10, the one called "Alpha", located in the southwestern area, was selected as the first one to be drill. Main reason for this choice was the presence of a deep basin (Witch Ground Graben) to the south west of the block, where the Viking Group shales was believed to have generated hydrocarbons since Cretaceous time. The tectonic evolution of the structure is probably of pre-Cretaceous age, well before hydrocarbon generation started.The purpose of the well was to explore all main reservoirs down to Triassic. The primary targets were the Jurassic and Triassic sandstone units, expected at 2850 m and 2980 m, respectively. Prognosed TD was at 3175 m.Operations and resultsWildcat well 16/10-1 was spudded 25 May 1986 by Dyvi Offshore A/S semi-submersible rig Dyvi Stena and drilled to TD at 3151 m in the Late Permian Zechstein Group. The well was drilled with Seawater and hi-vis pills down to 514 m, with KCl/Polymer mud from 524 m to 2565 m, and with lignosulphonate mud from 2565 m t TD. Drilling proceeded without any significant problems. Electrical logs were run already in the 26" section from 195 m. No shallow gas was encountered.The Quaternary/Tertiary sequence, 2280.5 m thick, is represented by Nordland, Hordaland and Rogaland groups and is predominantly constituted by marine claystones. A 513.5 m Cretaceous section represented by the limestones of the Chalk Group and by the reddish marl and calcareous shales of the Cromer Knoll Group was penetrated. It was nearly a complete sequence except for two possible hiatus: the first in the Late Santonian and the second between the Cenomanian and the Aptian-Albian. The base Cretaceous Unconformity overlies the Late Jurassic shales of the Viking Group (top at 2794 m), which proved to have a thickness of 211 m. The top of the Jurassic sandstones of the Vestland Group was encountered at 3005 m. The "Oxfordian Sandstone Unit" (Hugin Formation) was 33m thick with very good reservoir properties. Below this was a 15 m thick "coal unit" of the Sleipner Formation, containing a major coal sequence with interbedded carbonaceous claystone/shale. Below the Mid Kimmerian Unconformity, a 58 m thick sequence of arenaceous sediments of the Triassic Skagerrak Formation was drilled. The interval was a monotonous sequence of clastics, with the typical continental red iron colour. At 3116 m the top of the Permian evaporites of the Zechstein Group was touched and penetrated until the depth of 3151 m (TD). Two cores were cut in the Heather Formation, the first from 2855 m to 2873 m, and the second from 2925 m to 2934 m. No fluid samples were taken. The well was permanently abandoned on 14 July 1986 as a dry hole.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]510.003147.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12855.02873.0[m ]22925.02934.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]27.0Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2760.2[m]SWCRRI2793.0[m]DCRRI2798.4[m]SWCRRI2799.0[m]DCRRI2811.5[m]SWCRRI2814.0[m]DCRRI2826.0[m]DCRRI2841.0[m]DCRRI2844.0[m]DCRRI2855.0[m]CRRI2860.0[m]CRRI2864.0[m]CRRI2867.0[m]CRRI2873.0[m]CRRI2874.0[m]DCRRI2877.0[m]DCRRI2889.0[m]DCRRI2892.0[m]DCRRI2903.0[m]SWCRRI2907.0[m]DCRRI2910.0[m]DCRRI2924.0[m]DCRRI2926.0[m]CRRI2929.0[m]CRRI2932.0[m]CRRI2934.0[m]CRRI2949.0[m]DCRRI2953.5[m]DCRRI2964.0[m]DCRRI2975.0[m]SWCRRI2979.0[m]DCRRI2994.0[m]DCRRI3007.6[m]SWCRRI3009.0[m]DCRRI3018.5[m]SWCRRI3024.0[m]DCRRI3028.1[m]SWCRRI3036.0[m]DCRRI3042.0[m]DCRRI3063.0[m]DCRRI3066.0[m]DCRRI3081.0[m]DCRRI3100.0[m]DCRRI3108.0[m]SWCRRI3114.0[m]DCRRI3129.0[m]DCRRI3144.0[m]DCRRI3151.0[m]DCRRI -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet10910241035119721202120213621892245228122812349247526832691275027502763279427942853300530053038305330533116 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.53 -
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]pdf0.21pdf0.24 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf61.92 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR1001396CBL VDL GR9502777CST27803142DIL BHC GR161392DIL SLS GR4071315DITE SLS GR13962798DITE SLS GR27773150GR104161LDT CNL NGS27773150MWD - GR RES DIR4071405MWD - GR RES DIR13962798MWD - GR RES DIR27773150RFT28033120SHDT GR13962798SHDT GR27773150VSP4003150 -
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 formasjonstestCONDUCTOR30195.036195.00.00LOTSURF.COND.20505.026522.01.61LOTINTERM.13 3/81409.017 1/21424.01.82LOTINTERM.9 5/82540.012 1/42565.01.82LOTOPEN HOLE3151.08 1/23151.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1091.10WATER BASED23.05.19861461.10WATER BASED23.05.19861961.10WATER BASED05.06.19862181.05WATER BASED05.06.19863291.05WATER BASED05.06.19864001.05WATER BASED05.06.19865151.05WATERBASED05.06.19865151.1515.03.0WATER BASED05.06.19865361.1515.03.0WATER BASED05.06.19866191.1617.06.0WATER BASED05.06.19867151.1617.06.0WATER BASED05.06.19868111.1818.07.0WATER BASED05.06.19868311.2019.07.5WATERBASED05.06.19869181.2219.07.5WATER BASED05.06.198610541.2219.07.5WATER BASED05.06.198611211.2120.09.0WATER BASED08.06.198612071.2423.06.0WATER BASED08.06.198614191.2428.56.5WATER BASED08.06.198614241.2321.08.0WATER BASED11.06.198615151.2723.06.0WATER BASED11.06.198615821.2723.06.0WATER BASED11.06.198616211.2724.08.0WATER BASED15.06.198617181.2724.08.0WATER BASED15.06.198617341.2724.08.0WATER BASED15.06.198617401.3223.06.5WATER BASED15.06.198618241.3219.06.0WATER BASED15.06.198618731.3216.04.0WATER BASED15.06.198619231.3216.04.5WATER BASED15.06.198619701.3723.06.0WATER BASED15.06.198619881.3723.06.0WATER BASED15.06.198620271.4223.06.0WATER BASED15.06.198620801.4232.09.0WATER BASED15.06.198621251.4230.010.5WATER BASED16.06.198622291.4227.07.0WATER BASED17.06.198622431.4227.07.0WATER BASED17.06.198622571.4234.015.0WATER BASED17.06.198623491.4239.018.0WATER BASED18.06.198624221.4238.016.0WATER BASED19.06.198626041.2515.07.0WATER BASED26.06.198626391.3018.07.5WATER BASED29.06.198626951.3020.06.0WATER BASED29.06.198627591.3020.05.5WATER BASED29.06.198627821.3020.06.5WATER BASED30.06.198628241.3521.06.0WATER BASED30.06.198628571.3524.06.5WATER BASED01.07.198628731.3521.06.5WATER BASED02.07.198629081.3520.06.0WATER BASED03.07.198629831.3525.07.5WATER BASED06.07.198630831.3524.06.5WATER BASED06.07.198631511.3521.06.5WATER BASED08.07.1986