30/9-10
Eksport: PDF
-
Generell informasjon
-
Brønnhistorie
GeneralWell 30/9-10 was drilled in the Omega South segment on the Oseberg Fault Block in the North Sea. The primary objective was to test the hydrocarbon potential in the Tarbert Formation. Secondary objectives were to test the Cook Formation and the Statfjord Group.Operations and resultsWildcat well was spudded with the semi-submersible installation Vildkat on 31 July 1990 and drilled to TD at 3649 m in the Early Jurassic Statfjord Group. An 8 1/2" pilot hole was drilled from 210 to 350 m to check a possible shallow gas zone at 329 m. No gas was encountered. No significant problem was encountered in the operations. The well was drilled with spud mud down to 1059 m and with KCl/polymer mud from 1059 m to TD.The Draupne Formation was encountered at 2717 m and Intra Draupne Formation sandstone was penetrated from 2756 m to top Tarbert Formation at 2783 m. The Draupne Formation sandstone and the Upper Tarbert Formation were found to be oil bearing from 2756 - 2833 m. Poor to moderate oil shows continued down to 2858 m. No oil shows were recorded below this depth or above top Draupne Formation. The Middle Tarbert is poor or tight, and non-moveable hydrocarbons were present in the Lower Tarbert, which are interpreted from core analysis to be residual oil. The net pay was determined to be 55 m, with an average water saturation of 36.4% and average porosity of 17.5%. RFT data defines an oil gradient through Draupne and Upper Tarbert sandstones, which intersects with the Lower Tarbert water gradient at 2833 m in the Middle Tarbert. However, it is uncertain whether the oil gradient in the Upper Tarbert and the water gradient of the Lower Tarbert belong to the same pressure system. Consequently an oil-water contact was not proven in the well. The Cook Formation and the Statfjord Group were found water bearing with no shows.Three cores were cut from 2725 m to 2732.5 m in the Draupne Formation. Poor recovery was obtained in these cores. Another four cores were cut from 2747 m in the Draupne Formation, through Intra Draupne Formation sandstone, the Tarbert Formation, and to 2894.5 m in the Ness Formation. Good recovery was obtained in these cores. RFT fluid samples were taken at 2775 m (oil, gas and water/filtrate) and 2822 m (oil, gas and water/filtrate).The well was suspended on 21 September 1990 as an oil discovery.TestingTwo drill stem tests were performed.DST 1A tested the interval 2757 - 2776 m in Intra Draupne Formation sandstones. It produced oil and gas at average rates of 379 Sm3/day and 42100 Sm3/day respectively on a 15.9 mm choke. The GOR was 111 Sm3/Sm3, with oil gravity 0.861 g/cc and gas gravity 0.754 (air =1). The flowing well head pressure was 43.6 bars and the bottom hole temperature 107.0 degrees C. The well produced 0.8% CO2 and no H2S.DST 1B tested the intervals 2757.0 - 2776.0 m Intra Draupne Formation sandstones and 2779.7 - 2824.7 m in upper Tarbert Formation. Oil flowed at an average rate of 986 Sm3/day and gas flowed at an average rate of 84800 Sm3/day on a 19.1 mm choke. The GOR was 86 Sm3/Sm3, with oil gravity 0.861 g/cc and gas gravity 0.754 (air=l). The flowing well head pressure was 80.8 bars and the bottom hole temperature 108.4 degrees C. The well produced 0.6% CO2 and no H2S. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1070.003642.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12725.02725.1[m ]22726.02729.0[m ]32730.02732.1[m ]42747.02771.0[m ]52774.52824.1[m ]62825.02871.3[m ]72872.52895.0[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]147.6Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
-
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDSTDST1A2757.002776.0010.12.1990 - 00:00YESDSTDST1B2779.702824.7010.12.1990 - 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 formasjonstestCONDUCTOR30209.036210.00.00LOTINTERM.13 3/81040.017 1/21059.01.87LOTINTERM.9 5/82701.012 1/42716.01.87LOTLINER72996.08 1/23649.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.02757277615.92.02757282419.1Borestrengtester (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]1.03794210000.8610.7541112.09868480000.8610.75486 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]CBL VDL21252690CST27023638DIL LSS GR SP AMS10412705DIL SDT GR SP AMS27622868DLL MSFL GR AMS27012891FMS4 GR AMS27023651LDL CNL10412685LDL CNL27012879LDL CNL GR AMS28203651LWD GR RES DIR210350MWD - GR RES DIR1243565NGL27022870NGL28203642RFT AMS27573103RFT AMS27622868RFT AMS36223634VSP22003650 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet12463484820572057213122002372268927172717275627842784287130963114311731173404342435023622 -
Geokjemisk informasjon
-
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokumentstørrelse [MB]pdf3.43pdf26.04 -
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter
Dokumenter – eldre Sokkeldirektoratets WDSS rapporter og andre relaterte dokumenter Dokument navnDokument formatDokumentstørrelse [MB]pdf0.23pdf0.23 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1241.20WATER BASED31.07.19902101.20WATER BASED01.08.19902241.20WATER BASED02.08.19903501.1611.010.0WATER BASED19.09.19904831.20WATER BASED03.08.199010591.20WATER BASED06.08.199010591.20WATER BASED06.08.199011321.2010.08.0WATER BASED06.08.199019841.4029.09.0WATER BASED09.08.199023061.4129.09.0WATER BASED10.08.199024651.4026.012.0WATER BASED13.08.199027161.4225.09.0WATER BASED13.08.199027161.4220.011.0WATER BASED14.08.199027161.4225.09.0WATER BASED13.08.199027251.2715.09.0WATER BASED15.08.199027301.2716.08.0WATER BASED16.08.199027471.2817.08.0WATER BASED17.08.199027741.2816.08.0WATER BASED20.08.199028251.2822.08.0WATER BASED20.08.199028731.2719.07.0WATER BASED20.08.199028951.9019.01.0WATER BASED21.08.199028951.2619.07.0WATER BASED22.08.199030021.2213.05.0WATER BASED31.08.199030021.2213.05.0WATER BASED03.09.199030021.2217.010.0WATER BASED03.09.199030021.2218.011.0WATER BASED04.09.199030021.2219.011.0WATER BASED05.09.199030021.2222.010.0WATER BASED06.09.199030021.2222.010.0WATER BASED07.09.199030021.1511.012.0WATER BASED10.09.199030021.1511.013.0WATER BASED10.09.199030021.1511.013.0WATER BASED10.09.199030021.1511.013.0WATER BASED11.09.199030021.1511.013.0WATER BASED13.09.199030021.1511.013.0WATER BASED14.09.199030021.1511.013.0WATER BASED17.09.199030021.1511.010.0WATER BASED17.09.199030021.1611.010.0WATER BASED18.09.199030021.2218.011.0WATER BASED03.09.199030021.1511.013.0WATER BASED17.09.199032581.2718.07.0WATER BASED23.08.199036491.2723.08.0WATER BASED27.08.199036491.2714.06.0WATER BASED27.08.199036491.2721.09.0WATER BASED27.08.199036491.2720.08.0WATER BASED29.08.199036491.2720.07.0WATER BASED29.08.1990 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1090.0[m]DCRRI1130.0[m]DCRRI1250.0[m]DCRRI1310.0[m]DCRRI1330.0[m]DCRRI1370.0[m]DCRRI1450.0[m]DCRRI1470.0[m]DCRRI1490.0[m]DCRRI1510.0[m]DCRRI1530.0[m]DCRRI1550.0[m]DCRRI1570.0[m]DCRRI1590.0[m]DCRRI1610.0[m]DCRRI1630.0[m]DCRRI1650.0[m]DCRRI1670.0[m]DCRRI1690.0[m]DCRRI1710.0[m]DCRRI1730.0[m]DCRRI1750.0[m]DCRRI1770.0[m]DCRRI1870.0[m]DCRRI1890.0[m]DCRRI1910.0[m]DCRRI1930.0[m]DCRRI1950.0[m]DCRRI1970.0[m]DCRRI1990.0[m]DCRRI2010.0[m]DCRRI2030.0[m]DCRRI2050.0[m]DCRRI2060.0[m]DCRRI2070.0[m]DCRRI2090.0[m]DCRRI2105.0[m]DCRRI2120.0[m]DCRRI2135.0[m]DCRRI2150.0[m]DCRRI2165.0[m]DCRRI2180.0[m]DCRRI2190.0[m]DCRRI2210.0[m]DCRRI2225.0[m]DCRRI2240.0[m]DCRRI2255.0[m]DCRRI2270.0[m]DCRRI2285.0[m]DCRRI2300.0[m]DCRRI2315.0[m]DCRRI2330.0[m]DCRRI2345.0[m]DCRRI2360.0[m]DCRRI2375.0[m]DCRRI2410.0[m]DCRRI2440.0[m]DCRRI2470.0[m]DCRRI2500.0[m]DCRRI2530.0[m]DCRRI2560.0[m]DCRRI2590.0[m]DCRRI2613.0[m]SWCHYDRO2620.0[m]DCRRI2650.0[m]DCRRI2685.0[m]DCRRI2703.0[m]SWCHYDRO2706.0[m]SWCHYDRO2709.0[m]SWCHYDRO2710.0[m]SWCHYDRO2712.0[m]SWCHYDRO2715.0[m]DCRRI2715.0[m]SWCHYDRO2719.0[m]SWCHYDRO2722.0[m]SWCHYDRO2723.0[m]SWCHYDRO2725.0[m]CHYDRO2726.2[m]CHYDRO2727.2[m]CHYDRO2728.8[m]CHYDRO2730.6[m]CHYDRO2731.9[m]CHYDRO2737.0[m]CHYDRO2740.5[m]SWCHYDRO2742.5[m]SWCHYDRO2745.0[m]SWCHYDRO2747.0[m]CHYDRO2748.8[m]CHYDRO2749.7[m]CHYDRO2750.3[m]CHYDRO2750.9[m]CHYDRO2755.2[m]CHYDRO2759.2[m]CHYDRO2763.3[m]CHYDRO2767.6[m]CHYDRO2769.9[m]CHYDRO2771.9[m]CHYDRO2773.4[m]CHYDRO2775.5[m]CHYDRO2777.5[m]CHYDRO2779.2[m]CHYDRO2781.1[m]CHYDRO2781.8[m]CHYDRO2782.0[m]CHYDRO2782.0[m]CHYDRO2792.0[m]CHYDRO2792.5[m]CHYDRO2796.6[m]CHYDRO2797.2[m]CHYDRO2803.1[m]CHYDRO2804.0[m]CHYDRO2812.7[m]CHYDRO2813.9[m]CHYDRO2815.0[m]CHYDRO2819.3[m]CHYDRO2825.1[m]CHYDRO2827.0[m]CHYDRO2830.6[m]CHYDRO2836.8[m]CHYDRO2839.2[m]CHYDRO2844.0[m]CHYDRO2845.9[m]CHYDRO2848.8[m]CHYDRO2851.1[m]CHYDRO2857.3[m]CHYDRO2864.5[m]CHYDRO2867.3[m]CHYDRO2868.1[m]CHYDRO2869.1[m]CHYDRO2872.5[m]CHYDRO2876.5[m]CHYDRO2883.0[m]CHYDRO2886.4[m]CHYDRO2891.3[m]CHYDRO2892.9[m]CHYDRO2899.0[m]CHYDRO2908.0[m]SWCHYDRO2914.5[m]SWCHYDRO2925.0[m]DCRRI2932.0[m]SWCHYDRO2947.0[m]SWCHYDRO2953.0[m]SWCHYDRO2965.0[m]DCRRI2975.0[m]DCRRI2984.0[m]SWCHYDRO2992.0[m]DCRRI3002.0[m]DCRRI3011.0[m]SWCHYDRO3022.0[m]DCRRI3026.0[m]SWCHYDRO3028.0[m]SWCHYDRO3036.0[m]SWCHYDRO3051.0[m]SWCHYDRO3066.0[m]SWCHYDRO3082.0[m]DCRRI3085.0[m]SWCHYDRO3091.5[m]SWCHYDRO3095.0[m]SWCHYDRO3109.0[m]SWCHYDRO3112.0[m]SWCHYDRO3115.5[m]SWCHYDRO3130.0[m]DCRRI3130.0[m]SWCHYDRO3131.0[m]SWCHYDRO3140.0[m]DCRRI3152.0[m]DCRRI3162.0[m]SWCHYDRO3172.0[m]DCRRI3180.0[m]SWCHYDRO3192.0[m]DCRRI3201.0[m]SWCHYDRO3212.0[m]DCRRI3232.0[m]DCRRI3242.0[m]DCRRI3248.0[m]SWCHYDRO3262.0[m]DCRRI3272.0[m]DCRRI3282.0[m]DCRRI3295.0[m]DCRRI3302.0[m]DCRRI3315.0[m]SWCHYDRO3322.0[m]DCRRI3332.0[m]DCRRI3342.0[m]DCRRI3352.0[m]DCRRI3362.0[m]DCRRI3372.0[m]DCRRI3382.0[m]DCRRI3392.0[m]DCRRI3402.0[m]DCRRI3412.0[m]DCRRI3425.0[m]SWCHYDRO3432.0[m]DCRRI3446.0[m]SWCHYDRO3452.0[m]DCRRI3462.0[m]DCRRI3478.5[m]SWCHYDRO3482.0[m]DCRRI3502.0[m]DCRRI3512.0[m]DCRRI3521.0[m]SWCHYDRO3532.0[m]DCRRI3542.0[m]DCRRI3552.0[m]DCRRI3562.0[m]DCRRI3572.0[m]DCRRI3582.0[m]DCRRI3591.0[m]SWCHYDRO3602.0[m]DCRRI3622.0[m]DCRRI3625.0[m]SWCHYDRO3637.0[m]DCRRI3638.0[m]SWCHYDRO3646.0[m]DCRRI