34/10-5
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Generell informasjon
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Brønnhistorie
GeneralWell 34/10-5 was drilled in the western part of the Delta Closure in Block 34/10 in the Northern North Sea. The primary objective of well 34/10-5 was sandstones of Middle Jurassic age. Secondary objectives were sandstones of Early Jurassic age.Operations and resultsAppraisal well 34/10-5 was spudded with the semi-submersible installation Ross Rig on 18 October 1979 and drilled to TD at 2780 m in the Late Triassic Lunde Formation. Apart from lost circulation problems in the 12 1/4" section the drilling itself went quite smoothly. However, almost 21 days were lost due to bad weather conditions. The well was drilled with spud mud down to 518 m, with gel/lignosulphonate from 518 to 1775 m, with gel/lignite/lignosulphonate from 1775 m to 2210 m, and with gel/lignosulphonate from 2210 m to TD.The Brent Group was encountered at 1896 m and was oil bearing down to the OWC at ca 1972 m. Test results indicated the same fluid system as in the previous wells drilled on the structure.Oil shows were recorded from 1250 m and downwards more or less continuously on claystone, limestone and siltstone to top Brent level. No shows were recorded below OWC.Four cores were recovered in the interval from 1917 to 1974.7 m. One RFT fluid sample from the Brent Group recovered ca 0.5 l oil and 1 l of mud filtrate.The well was permanently abandoned on 2 January 1980 as an oil appraisal well.TestingThe Tarbert Formation was tested from perforations in the interval 1925 -1927 m. The zone produced ca 724 Sm3 oil and 59400 Sm3 gas /day. No water was produced. The GOR was 82 Sm3/Sm3 and the oil gravity was 29 deg API. The bottom hole maximum temperature was 74.5 deg C, measured at 1907 m. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]220.002780.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11910.71928.7[m ]21930.01934.2[m ]31949.21959.8[m ]41967.41974.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]39.4Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1859.0[m]DC1862.0[m]DC2156.0[m]DC2162.0[m]DC2189.0[m]DC2207.0[m]DC2213.0[m]DC2228.0[m]DC2276.0[m]DC2285.0[m]DC2294.0[m]DC2300.0[m]DC2357.0[m]DC -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1619169259451057109711201195121513901555155516131734173418571857185818961896197020352070213421482148224023812388256225622649273227642764 -
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]pdf0.13pdf0.21 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf0.06pdf1.06pdf11.76pdf0.91pdf3.82pdf0.24pdf0.57pdf0.47pdf0.26pdf0.98pdf1.04pdf0.81pdf0.69 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.01900190212.7Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.074Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.0724594000.88282 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL GR4601766CBL VDL GR16112208DLL MSFL GR18672159FDC CNL GR CAL17652776FDC GR CAL5021770GEODIP18892001HDT17762160HDT22082777ISF SON GR SP1612775VELOCITY2962770 -
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 formasjonstestCONDUCTOR30225.036227.00.00LOTSURF.COND.20502.026518.01.59LOTINTERM.13 3/81598.017 1/21610.01.76LOTINTERM.9 5/81766.012 1/41775.01.98LOTLINER72209.08 1/22210.01.94LOTOPEN HOLE2780.062780.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling14751.25waterbased15401.32waterbased17051.55waterbased18851.75waterbased19431.78waterbased20901.77waterbased -
Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet1911.00[m ]1912.00[m ]1914.00[m ]1918.00[m ]1921.00[m ]1924.00[m ]1926.00[m ]1931.00[m ]1932.00[m ]1934.00[m ]1950.00[m ]1952.00[m ]1955.00[m ]1959.00[m ] -
Trykkplott
Trykkplott Porertrykksdataene kommer fra logging i brønnen hvis ingen annen kilde er oppgitt. I noen brønner der trykk ikke er logget, er det brukt informasjon fra formasjonstester eller brønnspark. Trykkdataene er rapportert inn til Oljedirektoratet og videre prosessert og kvalitetssikret av IHS Markit.Trykkplott Dokument navnDokument formatDokumentstørrelse [MB]pdf0.22