34/10-14
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Generell informasjon
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Brønnhistorie
GeneralWell 34/10-14 was drilled on a horst block in the north-eastern part of the Gullfaks field. The objectives of the well were to prove the structural position of the middle- and early Jurassic sandstones and to establish the oil-water contact in the Brent Group in this part of the field.Operations and resultsAppraisal well 34/10-14 was spudded with the semi-submersible installation Ross Rig on 24 December 1981 and drilled to TD at 2647 m in the Triassic Hegre Group. Significant downtime (17% of total rig time) was caused by the combined effect of bad weather and the need to pull the BOP three times to detect leaks. The well was drilled with gel/lignosulphonate/seawater mud all through.Weak shows on limestone and claystone cuttings were recorded intermittently from 1506 m in the Hordaland down to top Shetland Group at 1729 m. Sandstones of the Ness Formation were oil-bearing from 1908 m to the oil-water contact, indicated by pressure measurements and logs to be at 1972 m. This corresponds to the OWC found in the wells 34/10-3, 5 and 8. Shows on cores continued down to 2002 m.Ten cores were recovered, nine in the interval from 1889 to 2047m KB and one core from 2210 to 2228 KB. RFT fluid sampling was performed at 1917.5 m and 1961.5 m but the fluids recovered were not representative for the reservoir fluid.The well was permanently abandoned on 19 March 1982 as an oil appraisal well.TestingOne drill stem test was performed in the interval 1933.5 m to 1937.5 m in the Ness Formation. The test produced 713 Sm3 oil/day through a 34/64” choke. The GOR was 67 Sm3/Sm3, separator oil gravity was 29.4 °API, and gas gravity was 0.67 (air = 1). The maximum temperature at gauge depth was 75 °C. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]310.002643.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11889.01895.9[m ]21907.81921.9[m ]31925.01932.7[m ]41939.51949.4[m ]51957.01972.5[m ]61972.51990.4[m ]71991.02009.4[m ]82010.02028.0[m ]92028.02047.0[m ]102210.02224.5[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]141.9Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1465.0[m]DCGEOCH1490.0[m]DCGEOCH1505.0[m]DCGEOCH1545.0[m]DCGEOCH1615.0[m]DCGEOCH1645.0[m]DCGEOCH1655.0[m]DCGEOCH1705.0[m]DCCGG1725.0[m]DCGEOCH2156.0[m]SWCRRI2165.0[m]SWCRRI2190.0[m]SWCRRI2202.0[m]SWCRRI2209.0[m]SWCRRI2229.4[m]SWCRRI2241.0[m]SWCRRI2255.0[m]SWCRRI2269.0[m]SWCRRI -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet252926953155415541621172919081908197620032069208020802159220323722596 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.18pdf0.21 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf2.28pdf21.54pdf1.70pdf0.19pdf0.94pdf0.61pdf0.23pdf1.91 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.01934193712.7Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.0Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.0850810000.8200.65095 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]C H CNL GR18962000CBL VDL GR7802292CYBERDIP17962645DIR17962649DLL MSFL GR17962116FDC CNL GR7852644HDT17962645ISF SON MAFL GR2422643TDT GR19002050VDL LSS19002150 -
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 formasjonstestCONDUCTOR30313.036314.00.00LOTSURF.COND.20785.026800.01.80LOTINTERM.13 3/81554.017 1/21568.01.85LOTINTERM.9 5/81799.012 1/41810.01.93LOTLINER72297.08 1/22300.02.38LOTOPEN HOLE2647.062647.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3651.07waterbased8301.15waterbased13401.30waterbased15701.50waterbased18101.72waterbased19301.80waterbased23201.64waterbased -
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