16/3-2
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Generell informasjon
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Brønnhistorie
GeneralWell 16/3-2 was drilled 40 m east of 16/3-1 on the Utsira High in the North Sea. The objectives were to investigate Paleocene sand pinch out, the weathered top of the Cretaceous chalk and Jurassic sandstone. The 16/3-2 well is a replacement for well 16/3-1, which was junked for technical reasons.Operations and resultsWildcat well 16/3-1 was spudded with the semi-submersible installation Polyglomar Driller on 11 February 1976 and drilled to TD at 2019 m in granite basement. No significant problems were reported from the operations. The well was drilled with spud mud (gel and lime) and pre-hydrated bentonite down to 440 m, and with lignosulphonate mud from 440 m to TD. Around the well there was a 3 m deep and 15 m wide crater. Gas was observed leaking from 2 main openings and 1 minor. The gas flow from one of the major openings was about 400 l/hour. The gas was practically pure methane (99.98%), probably coming from layers near the surface.There were no sands in Paleocene and the Cretaceous chalk was tight. A 20 m thick immature Draupne shale was encountered at 1955 m. The well then encountered a 31 m thick late Jurassic sandstone from 1975 m to 2006 m. Below this sandstone was a 9 m thick layer of weathered basement overlying the solid granite. The well proved to be water wet all through, and no shows were recorded.Three cores were cut. Core 1 gave no recovery, while core recovered 3.5 m core from the interval 1998 m to 2000.6 m in the Late Jurassic sand. Core no 3 was cut from 2017.5 m to 2019 m in basement rock. No fluid sample was taken in the well.The well was permanently abandoned on 8 March 1976 as a dry well.TestingNo drill stem test was performed -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?NOBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]210.002017.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11998.02000.6[m ]22017.52019.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]4.1Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1427798821302130213441356145014581458147115491682178517851800190819551955197520062015 -
Geokjemisk informasjon
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Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.26 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf3.38pdf0.13pdf0.23pdf1.02pdf1.34pdf1.44pdf8.07pdf1.13pdf1.16pdf0.50pdf0.60pdf0.86pdf1.14 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]BHC GR13141657BHC GR1321141BHC GR16572019CST4701310CST13252010CST13252010HDT13142020HRT2001148IES4401321IES16572019IFS13141660VELOCITY4402020 -
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 formasjonstestCONDUCTOR30190.036191.00.00LOTSURF.COND.20207.026212.00.00LOTINTERM.13 3/8440.017 1/2445.00.00LOTINTERM.9 5/81314.012 1/41319.00.00LOTOPEN HOLE2019.08 1/22019.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling2001.07sea water4451.06sea water13191.15waterbased16591.2245.0waterbased20191.2857.0waterbased