7229/11-1
Eksport: PDF
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Generell informasjon
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Brønnhistorie
GeneralWell 7229/11-1 was the first well drilled in Production Licence 183 following the interpretation of a 3D seismic survey acquired in 1991. The well is situated on the northeastern part of the Finnmark Platform. The target of the well was the "Castor" prospect, consisting of two Permian-Carboniferous (Sakmarian to Asselian age) carbonate build-ups confined in combined dip-closed and stratigraphic traps. The objectives were to test the hydrocarbon potential of the carbonate build-ups, referred to as Carbonate 1 and Carbonate 2 respectively, to acquire additional information on the Permian-Carboniferous of the Finnmark Platform, and to calibrate the seismic expression of the build-ups.Operations and resultsExploration well was spudded with the semi-submersible installation "Ross Rig" on 9 August 1993 and drilled to a total depth of 4630 m in limestone of Middle - Lower? Carboniferous age. The well was drilled with sea water and hi-vis pre-hydrated bentonite pills down to 1098 m, with KCl / polymer mud from 1098 m to 3012 m, and with a high-temperature KCl / Polymer mud from 3012 m to TD. The soft seabed did not present anchoring problems. No shallow gas was encountered. Drilling problems were experienced in the interval 339 m & 379 m. A seismic marker (black loop) corresponds to the top of this interval, which is interpreted as a boulder rich sequence. Drilling problems could have been due to boulders to fall into the hole and become wedged, thus causing sticking. The predicted carbonate build-up targets were encountered but were not reservoir facies. Carbonate 1 was confirmed to be build-up / build-up flank facies; Carbonate 2 was found to be carbonate platform facies. No hydrocarbon shows were encountered in the well. Nine cores totalling 180.9 metres length were successfully cut and retrieved from the Permian-Carboniferous. No hydrocarbon shows were encountered in the well. The well was plugged and abandoned as a dry hole on 15 December 1993.TestingNo drill stem test was performed -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1100.004629.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14088.04096.0[m ]24097.54104.5[m ]34130.54158.3[m ]44158.54182.7[m ]54183.04211.6[m ]64211.74240.0[m ]74240.34268.8[m ]84269.04276.0[m ]94373.04394.1[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]180.5Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet30737937912001212126712701270127813231453184318432353280438793879390139703970404642824282 -
Spleisede logger
Spleisede logger Dokument navnDokument formatDokumentstørrelse [MB]pdf0.78 -
Geokjemisk informasjon
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Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf4.51pdf49.03 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CST11862989CST GR30483898DLL MSFL AS CNL LDL SP GR10853012DLL MSFL BHC CNL LDL SP GR30024332DLL MSFL BHC CNL LDL SP NGT GR42004640FMI GR39504335FMI GR42504640LWD - CDR CDN AC CAL39504278MSCT GR38904586MSCT GR39094613MWD - CDR CDN3081098MWD - GR SN10854336MWD - GR SN43364630RFT18791882VSP9054630 -
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 formasjonstestCONDUCTOR30380.036380.00.00LOTSURF.COND.201085.0261085.00.00LOTINTERM.143000.017 1/23000.00.00LOTOPEN HOLE4630.012 1/44630.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling3401.2542.0WATER BASED9201.2842.0WATER BASED10451.2852.0WATER BASED10981.1875.0WATER BASED11681.1855.0WATER BASED14701.1851.0WATER BASED15221.2148.0WATER BASED16101.1847.0WATER BASED17621.1847.0WATER BASED18441.2243.0WATER BASED19201.1846.0WATER BASED19401.2145.0WATER BASED20571.2146.0WATER BASED21761.2148.0WATER BASED22551.2153.0WATER BASED23001.2767.0WATER BASED23171.2157.0WATER BASED23271.2154.0WATER BASED25001.2148.0WATER BASED26411.2046.0WATER BASED27111.2146.0WATER BASED27501.2145.0WATER BASED27611.2145.0WATER BASED27801.2145.0WATER BASED28021.2145.0WATER BASED28301.3565.0WATER BASED28441.2146.0WATER BASED28501.3667.0WATER BASED28541.2145.0WATER BASED28591.2148.0WATER BASED29391.2148.0WATER BASED29801.3456.0WATER BASED30041.2148.0WATER BASED30121.2150.0WATER BASED30861.2053.0WATER BASED31511.2154.0WATER BASED31831.2154.0WATER BASED32541.2153.0WATER BASED32711.2151.0WATER BASED33021.2148.0WATER BASED33551.2148.0WATER BASED34171.2146.0WATER BASED34561.2149.0WATER BASED35061.2147.0WATER BASED36461.2144.0WATER BASED37001.2146.0WATER BASED37421.2145.0WATER BASED37981.2145.0WATER BASED38111.2143.0WATER BASED38181.2145.0WATER BASED38201.2145.0WATER BASED39061.2344.0WATER BASED39221.2345.0WATER BASED39421.2345.0WATER BASED39571.24446.0WATER BASED39841.2350.0WATER BASED40881.2345.0WATER BASED40971.2346.0WATER BASED41251.2348.0WATER BASED41301.2344.0WATER BASED41581.2343.0WATER BASED41831.2349.0WATER BASED42111.2346.0WATER BASED42401.2348.0WATER BASED42681.2345.0WATER BASED42751.2347.0WATER BASED42781.2345.0WATER BASED42791.2348.0WATER BASED43071.2348.0WATER BASED43451.2444.0WATER BASED43661.3347.0WATER BASED43731.3346.0WATER BASED44221.3347.0WATER BASED45591.3349.0WATER BASED46121.3454.0WATER BASED46301.3457.0WATER BASED -
Tynnslip i Sokkeldirektoratet
Tynnslip i Sokkeldirektoratet DybdeEnhet4380.02[m ]4377.02[m ]4374.02[m ]4275.96[m ]4275.11[m ]4275.02[m ]4271.85[m ]4267.60[m ]