35/11-7
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Generell informasjon
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Brønnhistorie
GeneralThe 35/11-7 well is located in the southeastern part of the block, 2.5 kilometres east of the 35/11-4 discovery.The primary objective of the well was the middle Jurassic Brent Group and the secondary objective was the Middle Jurassic Fensfjord Formation. A tertiary objective was the Late Jurassic Sognefjord Formation.Operations and resultsWildcat well 35/11-7 was spudded with the semi submersible installation West Delta on 23 July 1992 and drilled to TD at 2895 m in the Early Jurassic Statfjord Formation. Operations went smoothly with little downtime. The well was drilled with seawater and viscous pills down to 966 m and with KCl/PHPA/PHB/PAC mud from 966 m to TD.Traces of oil were seen in reservoir quality sandstone units within the Paleocene Lista Formation. No FMT samples were taken and no detailed petrophysical analysis was carried out at this level. Good hydrocarbon bearing sandstones were found in the Late Jurassic Sognefjord Formation from 1796 m. From FMT and log data the gas-oil contact is at 1800.5 m and the oil-water contact at 1851.5 m with a gross hydrocarbon column of 31.7 m. The Middle Jurassic Fensfjord Formation was found to be water wet with no shows. The Brent Group from 2423.5 m has a gross hydrocarbon column of 58.1 m. From FMT and petrophysical analysis a gas-oil contact is present at 2469.9 m and an oil-water contact at 2504.8 m. A total of eleven cores were cut in the Late and Middle Jurassic reservoirs. Five consecutive cores were taken in the Sognefjord Formation with 93 m cut and 95% recovered. Six cores were cut in the Brent Group (Ness through to Oseberg Formations), with 113 m cut and 98.8 % recovered. FMT measurements indicate moderate to good permeabilities in the Sognefjord Formation and Brent Groups. Eight segregated samples were taken, proving gas and oil in the Sognefjord Formation and gas and condensate in the Brent Group.The well was permanently abandoned on 1 October 1992 as an oil and gas discovery.TestingTwo drill stem tests were undertaken. DST 1 from 2476 m to 2491 m in the Brent Group tested 1105 m3 of oil and 374000 Sm3 of gas /day, corresponding to a GOR of 338 Sm3/m3. DST 2 from 1829.4 m to 1846.4 m in the Sognefjord Formation tested 1285 m3 of oil and 53000 Sm3 of gas /day on a fully open choke. This gives a GOR of 41 Sm3/m3. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]980.002893.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11801.01827.5[m ]21828.01841.6[m ]31841.61868.0[m ]41868.81883.0[m ]51884.51892.0[m ]62000.02001.1[m ]72429.52440.0[m ]82440.02457.0[m ]92458.02486.3[m ]102486.32513.0[m ]112514.02541.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]198.8Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie975.0[m]SWCMOBIL1000.0[m]SWCMOBIL1025.0[m]SWCMOBIL1050.0[m]SWCMOBIL1072.0[m]SWCMOBIL1088.0[m]SWCMOBIL1090.0[m]DCMOBIL1100.0[m]SWCMOBIL1120.0[m]DCMOBIL1140.0[m]DCMOBIL1150.0[m]SWCMOBIL1170.0[m]SWCMOBIL1188.0[m]SWCMOBIL1207.0[m]SWCMOBIL1224.0[m]SWCMOBIL1242.0[m]SWCMOBIL1257.5[m]SWCMOBIL1273.0[m]SWCMOBIL1286.0[m]SWCMOBIL1294.0[m]SWCMOBIL1310.0[m]DCMOBIL1324.0[m]SWCMOBIL1343.0[m]SWCMOBIL1350.0[m]SWCMOBIL1360.0[m]SWCMOBIL1370.0[m]SWCMOBIL1387.0[m]SWCMOBIL1407.0[m]SWCMOBIL1425.0[m]SWCMOBIL1440.0[m]DCMOBIL1450.0[m]DCMOBIL1465.0[m]SWCMOBIL1488.0[m]SWCMOBIL1520.0[m]DCMOBIL1528.0[m]SWCMOBIL1537.0[m]SWCMOBIL1548.0[m]SWCMOBIL1562.0[m]SWCMOBIL1580.0[m]DCMOBIL1590.0[m]SWCMOBIL1615.0[m]SWCMOBIL1627.5[m]SWCMOBIL1638.0[m]SWCMOBIL1657.0[m]SWCMOBIL1670.0[m]DCMOBIL1686.0[m]SWCMOBIL1693.0[m]SWCMOBIL1706.0[m]SWCMOBIL1718.0[m]SWCMOBIL1727.0[m]SWCMOBIL1739.0[m]SWCMOBIL1748.0[m]SWCMOBIL1758.5[m]SWCMOBIL1771.0[m]DCMOBIL1777.0[m]DCMOBIL1785.0[m]SWCMOBIL1798.0[m]DCMOBIL1801.0[m]CMOBIL1802.0[m]CMOBIL1812.0[m]CMOBIL1819.0[m]CMOBIL1828.0[m]CMOBIL1832.0[m]CMOBIL1843.0[m]CMOBIL1866.0[m]CMOBIL1876.5[m]CMOBIL1886.0[m]CMOBIL1892.9[m]CMOBIL1903.0[m]DCMOBIL1912.0[m]DCMOBIL1921.0[m]DCMOBIL1930.0[m]DCMOBIL1939.0[m]DCMOBIL1957.0[m]SWCMOBIL1966.0[m]DCMOBIL1975.0[m]DCMOBIL1984.0[m]DCMOBIL1989.5[m]SWCMOBIL2002.0[m]DCMOBIL2008.0[m]SWCMOBIL2022.5[m]SWCMOBIL2032.0[m]DCMOBIL2041.0[m]DCMOBIL2050.0[m]DCMOBIL2059.0[m]DCMOBIL2068.0[m]DCMOBIL2077.0[m]DCMOBIL2086.0[m]DCMOBIL2095.0[m]SWCMOBIL2107.0[m]DCMOBIL2125.0[m]DCMOBIL2135.0[m]SWCMOBIL2143.0[m]DCMOBIL2152.0[m]DCMOBIL2164.0[m]DCMOBIL2173.0[m]DCMOBIL2200.0[m]SWCMOBIL2209.0[m]DCMOBIL2218.0[m]DCMOBIL2227.0[m]DCMOBIL2236.0[m]DCMOBIL2254.0[m]DCMOBIL2263.0[m]DCMOBIL2272.0[m]DCMOBIL2281.0[m]DCMOBIL2290.0[m]DCMOBIL2308.0[m]DCMOBIL2317.0[m]DCMOBIL2324.0[m]SWCMOBIL2335.0[m]DCMOBIL2344.0[m]DCMOBIL2353.0[m]DCMOBIL2362.0[m]DCMOBIL2368.0[m]DCMOBIL2383.0[m]DCMOBIL2391.0[m]SWCMOBIL2398.0[m]DCMOBIL2413.0[m]DCMOBIL2420.0[m]SWCMOBIL2428.0[m]DCMOBIL2434.0[m]CMOBIL2444.0[m]CMOBIL2450.0[m]CMOBIL2486.0[m]CRRI2506.0[m]CRRI2510.0[m]CRRI2512.0[m]CRRI2515.0[m]CRRI2518.0[m]CRRI2521.0[m]CMOBIL2521.0[m]CRRI2525.0[m]CMOBIL2525.0[m]CRRI2529.0[m]CRRI2538.0[m]CRRI2539.0[m]CRRI2540.0[m]CRRI2541.0[m]CMOBIL2542.0[m]DCMOBIL2551.0[m]DCMOBIL2557.0[m]DCMOBIL2566.0[m]DCMOBIL2572.0[m]DCMOBIL2589.0[m]SWCMOBIL2610.0[m]SWCMOBIL2620.0[m]DCMOBIL2632.0[m]DCMOBIL2641.0[m]DCMOBIL2649.0[m]SWCMOBIL2662.0[m]DCMOBIL2671.0[m]DCMOBIL2680.0[m]DCMOBIL2689.0[m]DCMOBIL2710.0[m]DCMOBIL2719.0[m]DCMOBIL2734.0[m]DCMOBIL2743.0[m]DCMOBIL2752.0[m]DCMOBIL2761.0[m]DCMOBIL2770.0[m]DCMOBIL2779.0[m]DCMOBIL2800.0[m]DCMOBIL2809.0[m]DCMOBIL2830.0[m]DCMOBIL2848.0[m]DCMOBIL2878.0[m]DCMOBIL -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTDST12476.002499.0012.09.1992 - 16:00YESDSTDST22476.002491.00OIL21.09.1992 - 16:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet38468771112951295134414101487152715911626171517351735177917931793179619642104218124242424245425112528258425842592268727912840 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.46 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.52pdf0.18 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf2.25pdf47.06 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.02476249115.92.01829184615.9Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.012.00024.000902.012.00024.00075Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.06621953840.8020.7002952.0636396430.8020.73062 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DIFL ACL GR CHT17702890DIFL ACL ZDEN CN GR CHT17742314DIFL ACL ZDEN GR CHT9011772DIP GR17882890DLL MLL GR CHT17702891FMT HP GR14901765FMT HP GR17971947FMT HP GR18090FMT HP GR18152879FMT HP GR18680FMT HP GR24370FMT HP GR24620FMT HP GR24750MWD - DIR433452MWD - RES GR DIR279413MWD - RES GR DIR4522895SWC GR9751758SWC GR17772370SWC GR17852849VELOCITY5002550ZDEN CN SL17702891 -
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 formasjonstestCONDUCTOR30443.036446.00.00LOTINTERM.13 3/8954.017 1/2966.01.77LOTINTERM.9 5/81774.012 1/41781.01.77LOTLINER72895.08 1/22895.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4341.0666.0WATER BASED4521.0664.0WATER BASED4521.0664.0WATER BASED5561.1319.0WATER BASED6091.1354.0WATER BASED7251.1348.0WATER BASED9661.1349.0WATER BASED10361.1430.0WATER BASED13421.1420.0WATER BASED16301.1416.0WATER BASED17781.1817.0WATER BASED17811.2418.0WATER BASED18941.1618.0WATER BASED22181.1425.0WATER BASED23741.1424.0WATER BASED24281.1428.0WATER BASED24301.1528.0WATER BASED24411.1528.0WATER BASED24861.1427.0WATER BASED25191.1427.0WATER BASED25411.1427.0WATER BASED26201.1010.0WATER BASED26781.1427.0WATER BASED26791.1425.0WATER BASED27851.1428.0WATER BASED28901.1427.0WATER BASED28951.1424.0WATER BASED -
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