7132/2-2
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General information
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Wellbore history
GeneralWell 7132/2-2 was drilled to test the Gjøkåsen Deep prospect on the Signalhornet Dome on the Finmark Platform in the Barents Sea. The Gjøkåsen Deep is the second well on the structure; it was planned and drilled back-to-back with the first well, 7132/2-1 Gjøkåsen. The primary exploration target for Gjøkåsen Deep was to prove petroleum in reservoir rocks from the Early to Late Triassic Age (the Snadd, Kobbe and Havert formation). The secondary exploration target was to prove petroleum and reservoir potential in the lower Havert formation (Early Triassic Age).Operations and resultsWildcat well 7132/2-2 was spudded with the semi-submersible installation West Hercules on 6 January 2019 and drilled to TD at 3528 m in the Permian Røye Formation. After drilling the top hole to 600 m the well was suspended from 14 January to 9 February when the rig was engaged in operations at 7132/2-1. An influx was registered by high gas readings at surface while circulating bottoms up from TD at 3400 m, with a gas peak of 52.3% before the well was shut in. No volume increase was observed in the active system. The well was drilled with seawater and hi-vis sweeps down to 601 m, with KCl/polymer/GEM mud from 601 to 1851 m, and with Innovert oil-based mud from 1851 m to TD.In the primary exploration target, well 7132/2-2 encountered 25 metres of sandstone reservoir with moderate to good quality in the Snadd formation (Carnian Age), 17 metres of sandstone reservoir with poor to moderate quality in the Kobbe formation and 26 metres of sandstone reservoir with poor quality in the upper Havert formation. Sandstone reservoir was also encountered in the Klappmyss Formation (Early Triassic Age) in a thickness of 17 metres with poor quality. In the secondary exploration target in the lower Havert Formation, the well encountered an interval of approximately 110 metres of sandstones with very poor reservoir quality. High measurements of formation gas with heavier hydrocarbons in the interval 3215 to 3400 m in Havert led to an extension of the well. The objective of the extension was to evaluate potential presence of source rock and underlying reservoir rocks in the Early Triassic and Late Permian (the Ørret and Røye formation). No reservoir rocks were encountered in this interval. The well is dry. Direct fluorescence (no cut, no residue) at several levels in the well was interpreted as mineral fluorescence.No cores were cut. MDT water samples were taken at 1915.5 m in the Havert Formation. The samples were contaminated with 42% to 71% oil-based mud.The well was permanently abandoned on 7 April 2019 as a dry well.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]603.003393.00 -
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 typeCONDUCTOR36385.941388.20.00SURF.COND.20594.626601.01.39FITINTERM.13 3/8952.617 1/2962.01.50FITLINER9 5/81849.012 1/41851.01.83LOTLINER73144.38 1/23400.01.61FITOPEN HOLE3528.063528.00.00 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]00 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit3353353453457077167427527527597798781083108314691895340534053454 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3791.3525.0KCl/Polymer/GEM5001.031.0Seawater5951.1417.0KCl/Polymer/GEM6011.3525.0KCl/Polymer/GEM6121.1417.0KCl/Polymer/GEM10351.1421.0KCl/Polymer/GEM17661.1517.0KCl/Polymer/GEM17661.14593.0KCl/Polymer/GEM18181.1418.0Innovert18511.1518.0KCl/Polymer/GEM18601.1418.0Innovert29441.3720.0Innovert30201.1414.0Innovert30791.3721.0Innovert31311.1414.0Innovert31481.3721.0Innovert31501.2817.0Innovert31501.3221.0Innovert32401.1418.0Innovert34001.2817.0Innovert34001.1416.0Innovert34191.3720.0Innovert35281.3721.0Innovert -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory606.0[m]DCCGG615.0[m]DCCGG624.0[m]DCCGG633.0[m]DCCGG642.0[m]DCCGG651.0[m]DCCGG660.0[m]DCCGG669.0[m]DCCGG678.0[m]DCCGG687.0[m]DCCGG696.0[m]DCCGG705.0[m]DCCGG711.0[m]DCCGG717.0[m]DCCGG723.0[m]DCCGG729.0[m]DCCGG735.0[m]DCCGG741.0[m]DCCGG747.0[m]DCCGG750.0[m]DCCGG753.0[m]DCCGG756.0[m]DCCGG759.0[m]DCCGG762.0[m]DCCGG768.0[m]DCCGG774.0[m]DCCGG780.0[m]DCCGG789.0[m]DCCGG798.0[m]DCCGG807.0[m]DCCGG816.0[m]DCCGG825.0[m]DCCGG834.0[m]DCCGG843.0[m]DCCGG852.0[m]DCCGG861.0[m]DCCGG870.0[m]DCCGG879.0[m]DCCGG888.0[m]DCCGG897.0[m]DCCGG906.0[m]DCCGG915.0[m]DCCGG924.0[m]DCCGG933.0[m]DCCGG942.0[m]DCCGG951.0[m]DCCGG960.0[m]DCCGG969.0[m]DCCGG978.0[m]DCCGG987.0[m]DCCGG996.0[m]DCCGG1005.0[m]DCCGG1014.0[m]DCCGG1023.0[m]DCCGG1032.0[m]DCCGG1041.0[m]DCCGG1050.0[m]DCCGG1059.0[m]DCCGG1068.0[m]DCCGG1077.0[m]DCCGG1086.0[m]DCCGG1095.0[m]DCCGG1104.0[m]DCCGG1113.0[m]DCCGG1122.0[m]DCCGG1131.0[m]DCCGG1140.0[m]DCCGG1149.0[m]DCCGG1158.0[m]DCCGG1167.0[m]DCCGG1176.0[m]DCCGG1194.0[m]DCCGG1203.0[m]DCCGG1212.0[m]DCCGG1221.0[m]DCCGG1230.0[m]DCCGG1239.0[m]DCCGG1248.0[m]DCCGG1269.0[m]DCCGG1290.0[m]DCCGG1311.0[m]DCCGG1332.0[m]DCCGG1350.0[m]DCCGG1370.0[m]DCCGG1391.0[m]DCCGG1410.0[m]DCCGG1430.0[m]DCCGG1450.0[m]DCCGG1470.0[m]DCCGG1490.0[m]DCCGG1510.0[m]DCCGG1530.0[m]DCCGG1550.0[m]DCCGG1570.0[m]DCCGG1590.0[m]DCCGG1616.0[m]DCCGG1630.0[m]DCCGG1650.0[m]DCCGG1670.0[m]DCCGG1690.0[m]DCCGG1710.0[m]DCCGG1730.0[m]DCCGG1750.0[m]DCCGG1770.0[m]DCCGG1790.0[m]DCCGG1810.0[m]DCCGG1830.0[m]DCCGG1850.0[m]DCCGG1870.0[m]DCCGG1890.0[m]DCCGG1910.0[m]DCCGG1930.0[m]DCCGG1950.0[m]DCCGG1970.0[m]DCCGG1976.8[m]SWCCGG1990.0[m]DCCGG2010.0[m]DCCGG2030.0[m]DCCGG2050.0[m]DCCGG2070.0[m]DCCGG2090.0[m]DCCGG2110.0[m]DCCGG2130.0[m]DCCGG2150.0[m]DCCGG2170.0[m]DCCGG2190.0[m]DCCGG2210.0[m]DCCGG2230.0[m]DCCGG2250.0[m]DCCGG2270.0[m]DCCGG2286.3[m]SWCCGG2290.0[m]DCCGG2310.0[m]DCCGG2330.0[m]DCCGG2350.0[m]DCCGG2370.0[m]DCCGG2380.0[m]DCCGG2390.0[m]DCCGG2400.0[m]DCCGG2408.0[m]SWCCGG2409.0[m]DCCGG2418.0[m]DCCGG2427.0[m]DCCGG2490.0[m]DCCGG2511.0[m]DCCGG2532.0[m]DCCGG2553.0[m]DCCGG2572.0[m]SWCCGG2574.0[m]DCCGG2595.0[m]DCCGG2616.0[m]DCCGG2637.0[m]DCCGG2658.0[m]DCCGG2660.0[m]SWCCGG2679.0[m]DCCGG2700.0[m]DCCGG2715.0[m]SWCCGG2721.0[m]DCCGG2742.0[m]DCCGG2763.0[m]DCCGG2784.0[m]DCCGG2805.0[m]DCCGG2812.0[m]SWCCGG2826.0[m]DCCGG2847.0[m]DCCGG2868.0[m]DCCGG2889.0[m]DCCGG2897.0[m]SWCCGG2910.0[m]DCCGG2931.0[m]DCCGG2952.0[m]DCCGG2973.0[m]DCCGG2984.0[m]SWCCGG2994.0[m]DCCGG3015.0[m]DCCGG3036.0[m]DCCGG3057.0[m]DCCGG3078.0[m]DCCGG3081.0[m]SWCCGG3099.0[m]DCCGG3120.0[m]DCCGG3141.0[m]DCCGG3162.0[m]DCCGG3175.0[m]SWCCGG3183.0[m]DCCGG3201.0[m]DCCGG3213.0[m]DCCGG3225.0[m]DCCGG3237.0[m]DCCGG3249.0[m]DCCGG3257.0[m]SWCCGG3261.0[m]DCCGG3273.0[m]DCCGG3285.0[m]DCCGG3297.0[m]DCCGG3309.0[m]DCCGG3321.0[m]DCCGG3322.5[m]SWCCGG3333.0[m]DCCGG3345.0[m]DCCGG3357.0[m]DCCGG3369.0[m]DCCGG3373.5[m]SWCCGG3381.0[m]DCCGG3393.0[m]DCCGG3395.2[m]SWCCGG3405.0[m]DCCGG3415.0[m]SWCCGG3420.0[m]DCCGG3435.0[m]DCCGG3445.0[m]SWCCGG3450.0[m]DCCGG3459.0[m]DCCGG3462.5[m]SWCCGG3474.0[m]DCCGG3489.0[m]DCCGG3491.0[m]SWCCGG3504.0[m]DCCGG3518.0[m]SWCCGG3519.0[m]DCCGG3528.0[m]DCCGG