6407/9-2
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Generell informasjon
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Brønnhistorie
GeneralAppraisal well 6407/9-2 was the second well in the Northern part of the Draugen Discovery on the Haltenbanken. The main objectives of the appraisal were to improve estimation of oil in place; to evaluate the reservoir quality and sand development on the Northern flank of the structure; calibration of the seismic time pick and velocity model; and to evaluate the oil deliverability and water injection characteristics.Operations and resultsAppraisal well 6407/9-2 was spudded with the semi-submersible installation Borgny Dolphin on 18 November 1984 and drilled to TD at 1865 m in the Early Jurassic Tilje Formation. The well was drilled with seawater and bentonite down to 813.5 m and with KCl/Polymer mud from 813.5 m to TD. No shallow gas was encountered.The Rogn Formation came in twenty m below prognosed depth at 1650 m. It consisted of an overall coarsening upwards sand sequence and contained an oil column of 12.5 m down to an oi1/ water contact at 1663.5 m. The calculated porosity was fairly constant throughout the reservoir at approximately 27%, while measured permeability decreased from up to 5 Darcy in the oil-bearing interval down to 20 mD towards the base of the reservoir. Eight conventional cores were cut from 1638 m to 1706.5 m. Several runs were made with the RFT: the reservoir pressure measured was hydrostatic, 2392 psia at 1625 m. No down hole fluid sample was recovered due to repeated plugging of the sampling probe.The well was permanently abandoned on 2 February as an oil appraisalTestingTwo DST tests were performed. The water zone was perforated from 1670 to 1675.5 m. An eight hours water injection test at rates up to 8000 b/d did not reveal any immediate problems related to injection of unfiltered clean seawater. After the water zone test the oil zone was perforated from 1651 to 1657 m. The well was gravel packed and rates up to 1177 Sm3/day (7400 stb/d) of 40 deg API oil were achieved. The evaluation showed a permeability of 2.6 Darcy. The reservoir temperature was 67 deg C. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]360.001866.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet11638.01639.3[m ]21640.01641.0[m ]31653.51670.0[m ]41671.51680.7[m ]51684.01686.7[m ]61688.01693.8[m ]81702.01706.2[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]40.6Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTDST21651.001657.0016.01.1985 - 00:00YES -
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 formasjonstestCONDUCTOR30346.036350.00.00SURF.COND.20800.026810.01.48LOTINTERM.13 3/81575.017 1/21587.01.67LOTINTERM.9 5/81852.012 1/41865.00.00 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.01670167615.82.01651165738.0Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.02.0Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.02.01177435490.8250.96037 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL GR10541799CBL VDL GR CCL4501574CNL GR15701648DLL MSFL GR15741858ISF LSS GR347812ISF LSS GR7991583ISF LSS GR15741862LDL CNL GR347813LDL CNL GR7991583LDL CNL NGT15741862RFT16521745SHDT GR15741863SWS15791851VELOCITY5241850 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet27227280786086013841384142015661566159415941610162016201650170217021765180218021829 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.32 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokumentstørrelse [MB]pdf0.52 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf5.14pdf0.97 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.29pdf0.15 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3521.098.024.0WATER BASED22.11.19848101.115.025.0WATER BASED23.11.19848101.116.029.0WATER BASED26.11.19848101.125.024.0WATER BASED26.11.19848101.118.020.0WATER BASED27.11.19848101.03WATER BASED28.11.19848101.03WATER BASED29.11.19848101.03WATER BASED30.11.19848101.03WATER BASED04.12.19848101.116.029.0WATER BASED26.11.19848101.125.024.0WATER BASED26.11.19848101.118.020.0WATER BASED27.11.19848101.03WATER BASED28.11.19848101.03WATER BASED29.11.19848101.03WATER BASED30.11.19848101.03WATER BASED04.12.198410571.3319.021.0WATER BASED04.12.198412331.3718.018.0WATER BASED04.12.198414521.4124.020.0WATER BASED04.12.198415841.4225.022.0WATER BASED05.12.198415871.2514.014.0WATER BASED10.12.198415871.4224.020.0WATER BASED06.12.198415871.4218.025.0WATER BASED07.12.198415871.2516.016.0WATER BASED10.12.198415871.2516.015.0WATER BASED10.12.198415871.4214.014.0WATER BASED11.12.198415871.4214.014.0WATER BASED12.12.198415871.42WATER BASED12.12.198415871.4218.025.0WATER BASED07.12.198415871.2516.016.0WATER BASED10.12.198415871.2516.015.0WATER BASED10.12.198415871.2514.014.0WATER BASED10.12.198415871.4214.014.0WATER BASED11.12.198415871.4214.014.0WATER BASED12.12.198415871.42WATER BASED12.12.198416041.2315.013.0WATER BASED17.12.198416401.2317.015.0WATER BASED17.12.198416541.2317.021.0WATER BASED17.12.198416881.2318.018.0WATER BASED17.12.198417021.2416.018.0WATER BASED19.12.198417021.2416.018.0WATER BASED18.12.198418121.2416.022.0WATER BASED18.12.198418121.2416.022.0WATER BASED19.12.198418651.2418.022.0WATER BASED26.12.198418651.2416.018.0WATER BASED26.12.198418651.2417.019.0WATER BASED26.12.198418651.03WATER BASED26.12.198418651.15WATER BASED01.01.198518651.2418.022.0WATER BASED26.12.198418651.2416.018.0WATER BASED26.12.198418651.2417.019.0WATER BASED26.12.198418651.03WATER BASED26.12.198418651.14WATER BASED27.12.198418651.2318.022.0WATER BASED20.12.198418651.14WATER BASED27.12.198418651.15WATER BASED01.01.1985 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie760.0[m]DCOD770.0[m]DCOD780.0[m]DCOD790.0[m]DCOD800.0[m]DCOD810.0[m]DCOD820.0[m]DCOD830.0[m]DCOD840.0[m]DCOD850.0[m]DCOD860.0[m]DCOD870.0[m]DCOD880.0[m]DCOD890.0[m]DCOD900.0[m]DCOD1638.0[m]CRRI1639.3[m]CRRI1640.0[m]CRRI1641.1[m]CRRI1663.2[m]CRRI1665.3[m]CRRI1666.1[m]CRRI1667.9[m]CRRI1674.4[m]CRRI1675.7[m]CRRI1677.2[m]CRRI1678.5[m]CRRI1679.7[m]CRRI1684.6[m]CRRI1685.9[m]CRRI1691.6[m]CRRI1702.0[m]CRRI1703.3[m]CRRI1703.8[m]CRRI1703.9[m]CRRI1704.6[m]CRRI1705.0[m]CRRI1705.5[m]CRRI