30/11-11 S
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General information
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Wellbore history
Wellbore historyGeneralWell 30/11-11 S was drilled to test the Madam Felle prospect on the east flank of the Fensal Sub-basin in the North Sea. The well is located ca 3 km south of the Askja East oil Discovery. The primary objective was to prove petroleum in the Middle Jurassic Tarbert Formation. The secondary objective was to prove petroleum in the Middle Jurassic Ness formation.Operations and resultsWildcat well 30/11-11 S was spudded with the semi-submersible installation Songa Delta on 4 March 2016 and drilled to TD at 3675 m in the Middle Jurassic Ness Formation. No significant problem was encountered in the operations. The well was drilled with seawater and hi-vis pills down to 1150 m and with XP07 oil based mud from 1150 m to TD.Well 30/11-11 S encountered oil in a sandstone from 3290 m to 3315 m in the top of the Tarbert Formation. Twenty-two metres of this sandstone had moderate to good reservoir properties. The Ness Formation had sandstones with moderate to good porosity, but these were water bearing. No oil shows were recorded in the well except for in the hydrocarbon bearing Tarbert sandstone sequence.No cores were cut. MDT fluid samples were taken at 3299.5 m (oil) and 3403 m (water).The well was permanently abandoned on 19 March 2016 as an oil discovery.TestingNo drill stem test was performed. -
Cuttings at the Norwegian Offshore Directorate
Cuttings at the Norwegian Offshore Directorate Cuttings available for sampling?YESCuttings at the Norwegian Offshore Directorate Cutting sample, top depth [m]Cutting samples, bottom depth [m]1160.003674.00 -
Oil samples at the Norwegian Offshore Directorate
Oil samples at the Norwegian Offshore Directorate Test typeBottle numberTop depth
MD [m]Bottom depth
MD [m]Fluid typeTest timeSamples availableDST3299.500.00OILYES -
Casing and leak–off tests
Casing and leak–off tests Casing typeCasing diam.
[inch]Casing depth
[m]Hole diam.
[inch]Hole depth
[m]LOT/FIT mud eqv.
[g/cm3]Formation test typeCONDUCTOR30185.036185.00.00SURF.COND.13 3/81142.017 1/21150.01.56FITLINER9 5/83017.012 1/43022.01.51FITOPEN HOLE3675.08 1/23675.00.00 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]AIT MSIP QUANTAGEO29503678MDT32963482MWD - ARCVIS TELE1851150MWD - ARCVIS TELE30223675MWD - ARCVIS TELE SON SADN11503022PEX ECS HNGS CMR30173678VSI43133668 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit1351354266896891530158317102093215721572197225123742470258425842839297629763093309530953140329132913532 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured1861.3045.0Bentonite/Polymer mud8501.3045.0Bentonite/Polymer mud10951.3420.0XP-0710951.3019.0XP-0711501.3914.0XP-0711501.3043.0Bentonite/Polymer mud16381.3917.0XP-0725431.3918.0XP-0730271.3015.0XP-0736751.3018.0XP-07 -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1160.0[m]DCPETROSTR1190.0[m]DCPETROS1220.0[m]DCPETROS1250.0[m]DCPETROS1280.0[m]DCPETROS1310.0[m]DCPETROS1340.0[m]DCPETROS1370.0[m]DCPETROS1400.0[m]DCPETROS1430.0[m]DCPETROS1460.0[m]DCPETROS1500.0[m]DCPETROS1530.0[m]DCPETROS1560.0[m]DCPETROS1590.0[m]DCPETROS1620.0[m]DCPETROS1650.0[m]DCPETROS1680.0[m]DCPETROS1710.0[m]DCPETROS1740.0[m]DCPETROS1770.0[m]DCPETROS1800.0[m]DCPETROS1830.0[m]DCPETROS1860.0[m]DCPETROS1890.0[m]DCPETROS1920.0[m]DCPETROS1950.0[m]DCPETROS1980.0[m]DCPETROS2010.0[m]DCPETROS2040.0[m]DCPETROS2070.0[m]DCPETROS2100.0[m]DCPETROS2120.0[m]DCPETROS2140.0[m]DCPETROS2160.0[m]DCPETROS2180.0[m]DCPETROS2200.0[m]DCPETROS2220.0[m]DCPETROS2240.0[m]DCPETROS2260.0[m]DCPETROS2280.0[m]DCPETROS2300.0[m]DCPETROS2320.0[m]DCPETROS2340.0[m]DCPETROS2360.0[m]DCPETROS2380.0[m]DCPETROS2400.0[m]DCPETROS2420.0[m]DCPETROS2440.0[m]DCPETROS2460.0[m]DCPETROS2480.0[m]DCPETROS2500.0[m]DCPETROS2520.0[m]DCPETROS2540.0[m]DCPETROS2560.0[m]DCPETROS2580.0[m]DCPETROS2590.0[m]DCPETROS2620.0[m]DCPETROS2650.0[m]DCPETROS2680.0[m]DCPETROS2710.0[m]DCPETROS2740.0[m]DCPETROS2770.0[m]DCPETROS2800.0[m]DCPETROS2830.0[m]DCPETROS2860.0[m]DCPETROS2890.0[m]DCPETROS2920.0[m]DCPETROS2950.0[m]DCPETROS2980.0[m]DCPETROS2990.0[m]DCPETROS3000.0[m]DCPETROS3010.0[m]DCPETROS3020.0[m]DCPETROS3030.0[m]DCPETROS3040.0[m]DCPETROS3050.0[m]DCPETROS3060.0[m]DCPETROS3070.0[m]DCPETROS3083.0[m]DCPETROS3089.0[m]DCPETROS3092.0[m]DCPETROS3101.0[m]DCPETROS3110.0[m]DCPETROS3119.0[m]DCPETROS3128.0[m]DCPETROS3137.0[m]DCPETROS3146.0[m]DCPETROS3155.0[m]DCPETROS3164.0[m]DCPETROS3173.0[m]DCPETROS3182.0[m]DCPETROS3191.0[m]DCPETROS3200.0[m]DCPETROS3209.0[m]DCPETROS3218.0[m]DCPETROS3227.0[m]DCPETROS3236.0[m]DCPETROS3245.0[m]DCPETROS3254.0[m]DCPETROS3263.0[m]DCPETROS3272.0[m]DCPETROS3281.0[m]DCPETROS3287.0[m]DCPETROS3293.0[m]DCPETROS3299.0[m]DCPETROS3305.0[m]DCPETROS3311.0[m]DCPETROS3317.0[m]DCPETROS3323.0[m]DCPETROS3329.0[m]DCPETROS3335.0[m]DCPETROS3341.0[m]DCPETROS3347.0[m]DCPETROS3356.0[m]DCPETROS3365.0[m]DCPETROS3374.0[m]DCPETROS3383.0[m]DCPETROS3392.0[m]DCPETROS3401.0[m]DCPETROS3410.0[m]DCPETROS3419.0[m]DCPETROS3428.0[m]DCPETROS3437.0[m]DCPETROS3446.0[m]DCPETROS3455.0[m]DCPETROS3464.0[m]DCPETROS3473.0[m]DCPETROS3482.0[m]DCPETROS3491.0[m]DCPETROS3500.0[m]DCPETROS3509.0[m]DCPETROS3518.0[m]DCPETROS3527.0[m]DCPETROS3536.0[m]DCPETROS3545.0[m]DCPETROS3554.0[m]DCPETROS3563.0[m]DCPETROS3572.0[m]DCPETROS3581.0[m]DCPETROS3590.0[m]DCPETROS3599.0[m]DCPETROS3608.0[m]DCPETROS3617.0[m]DCPETROS3626.0[m]DCPETROS3635.0[m]DCPETROS3644.0[m]DCPETROS3653.0[m]DCPETROS3662.0[m]DCPETROS3668.0[m]DCPETROS3674.0[m]DCPETROS