6608/10-3
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General information
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Wellbore history
GeneralThe main objective of well 6608/10-3 was to appraise oil accumulation in the Jurassic Fangst and Båt groups in the Northern Fault Block on the Norne field off shore Mid Norway.Operations and resultsAppraisal well 6608/10-3 was spudded by the semi-submersible installation "Ross Rig" on 7 January 1993 and drilled to a total depth of 2921 m, into rocks of Lower Jurassic age. The well was drilled water based. Seawater/bentonite spud mud was used down to 469 m, seawater/CMC EHV spud mud from 469 m to 874 m, and Gyp/PAC polymer mud from 874 m to TD. Oil and gas was encountered in the Early to Middle Jurassic Båt and Fangst Groups. Eleven cores were cut in the interval 2560 m to 2765 m, from the lower part of the Melke Formation, through the Fangst Group and into the Tilje Formation of the Båt Group. Four segregated FMT samples were taken at 2599.2 m in the Garn Formation (gas, mud filtrate, and small amount of oil), 2603.2 m in the Garn Formation (mud filtrate, gas, and oil), 2624.5 m in the Ile Formation (gas, and oil), and at 2715.2 in the Tilje Formation (mud filtrate and water with small amount of gas). The well was suspended on 11 March as an oil and gas appraisal well. The well was re-entered on 8 August 1995 with the semi-submersible installation "Ross Isle". The re-entry, 6608/10-3 R, was permanently plugged and abandoned as an oil and gas appraisal well.TestingOne drill stem test was performed in well 6608/10-3 in the Ile Formation (perforated interval 2617-2648 m). The well produced 1250 Sm3/D of oil with a density of 860 kg/m3 at standard conditions and 102500 Sm3/D of gas with a relative density of 0.65 (air=1.0) through a 60/64" (23.44 mm) choke. -
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]890.002754.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12560.02576.4[m ]22576.42604.0[m ]32604.02605.0[m ]42618.02622.0[m ]52627.02652.7[m ]62653.02680.1[m ]72680.12702.0[m ]82703.02704.0[m ]92705.02710.6[m ]102710.62738.0[m ]112738.62765.0[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]184.1Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Core photos
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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 typeCONDUCTOR30466.036466.00.00LOTINTERM.20863.026863.01.40LOTINTERM.13 3/81574.017 1/21574.01.85LOTINTERM.9 5/82542.012 1/42542.01.97LOTLINER72921.08 1/22921.00.00LOT -
Drill stem tests (DST)
Drill stem tests (DST) Test numberFrom depth MD
[m]To depth MD
[m]Choke size
[mm]1.02617264823.4Drill stem tests (DST) Test numberFinal shut-in pressure
[MPa]Final flow pressure
[MPa]Bottom hole pressure
[MPa]Downhole temperature
[°C]1.098Drill stem tests (DST) Test numberOil
[Sm3/day]Gas
[Sm3/day]Oil density
[g/cm3]Gas grav. rel.airGOR
[m3/m3]1.012501025000.8600.65082 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]CBL VDL GR6462871CDL CNL GR15752914DIFL ACL ZDL GR8631587DIFL DAC GR15742555DIPL MAC SL24302915DIPLOG GR19002555DLL MLL GR25392800FMT HP GR24982862HRDIP GR25632905MWD4722920SWC8942901VSP12402900 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit4024021368159215921858185819151951195121312394239424072407241325742574261026172657265727122791 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.43 -
Geochemical information
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Documents – reported by the production licence (period for duty of secrecy expired)
Documents – reported by the production licence (period for duty of secrecy expired) Document nameDocument formatDocument size [MB]pdf83.38 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured12501.2022.0WATER BASED15951.3422.0WATER BASED18031.6035.0WATER BASED19401.6025.0WATER BASED19601.6033.0WATER BASED20531.6035.0WATER BASED23621.6036.0WATER BASED24991.6026.0WATER BASED25551.6028.0WATER BASED25621.2025.0WATER BASED25741.2023.0WATER BASED26271.2021.0WATER BASED26271.2024.0WATER BASED29201.2024.0WATER BASED -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1580.0[m]DCGEOST1597.5[m]SWCSTATO1620.0[m]DCGEOST1640.0[m]DCGEOST1654.0[m]SWCSTATO1660.0[m]DCGEOST1681.0[m]SWCSTATO1690.0[m]SWCSTATO1700.0[m]DCGEOST1720.0[m]DCGEOST1740.0[m]DCGEOST1760.0[m]DCGEOST1766.0[m]SWCSTATO1780.0[m]DCGEOST1800.0[m]DCGEOST1823.0[m]SWCSTATO1840.0[m]DCGEOST1860.0[m]DCGEOST1890.0[m]SWCSTATO1900.0[m]DCGEOST1920.0[m]DCGEOST1932.0[m]SWCSTATO1940.0[m]DCGEOST1950.0[m]SWCSTATO1956.0[m]SWCSTATO1974.0[m]DCGEOST1992.0[m]DCGEOST2004.0[m]DCGEOST2028.0[m]DCGEOST2040.0[m]DCGEOST2058.0[m]DCGEOST2070.0[m]DCGEOST2082.0[m]DCGEOST2095.0[m]SWCSTATO2112.0[m]SWCSTATO2130.0[m]DCGEOST2141.0[m]SWCSTATO2154.0[m]DCGEOST2163.0[m]SWCSTATO2178.0[m]DCGEOST2186.0[m]SWCSTATO2190.0[m]DCGEOST2202.0[m]DCGEOST2220.0[m]DCGEOST2230.0[m]SWCSTATO2244.0[m]DCGEOST2262.0[m]DCGEOST2268.0[m]SWCSTATO2274.0[m]DCGEOST2292.0[m]DCGEOST2310.0[m]DCGEOST2322.0[m]SWCSTATO2334.0[m]DCGEOST2352.0[m]DCGEOST2362.0[m]SWCSTATO2376.0[m]DCGEOST2383.0[m]SWCSTATO2391.0[m]DCGEOST2400.0[m]DCGEOST2410.0[m]SWCSTATO2413.0[m]SWCSTATO2421.0[m]DCGEOST2424.5[m]SWCSTATO2435.0[m]SWCSTATO2445.0[m]DCGEOST2446.0[m]SWCSTATO2454.0[m]DCGEOST2463.0[m]DCGEOST2472.0[m]SWCSTATO2481.0[m]DCGEOST2490.0[m]DCGEOST2498.0[m]SWCSTATO2499.0[m]DCGEOST2508.0[m]DCGEOST2510.0[m]SWCSTATO2517.0[m]DCGEOST2526.0[m]DCGEOST2528.0[m]SWCSTATO2535.0[m]DCGEOST2537.0[m]SWCSTATO2544.0[m]DCGEOST2553.0[m]DCGEOST2560.0[m]SWCSTATO2566.0[m]SWCSTATO2572.6[m]SWCSTATO2573.9[m]SWCSTATO2581.0[m]SWCSTATO2586.0[m]SWCSTATO2589.0[m]SWCSTATO2595.5[m]SWCSTATO2604.3[m]SWCSTATO2609.3[m]SWCSTATO2612.7[m]SWCSTATO2615.6[m]SWCSTATO2617.4[m]SWCSTATO2621.1[m]SWCSTATO2627.4[m]SWCSTATO2630.5[m]SWCSTATO2637.3[m]SWCSTATO2640.4[m]SWCSTATO2645.1[m]SWCSTATO2649.5[m]SWCSTATO2658.5[m]SWCSTATO2661.1[m]SWCSTATO2661.6[m]SWCSTATO2670.6[m]SWCSTATO2673.9[m]SWCSTATO2678.9[m]SWCSTATO2681.8[m]SWCSTATO2687.5[m]SWCSTATO2691.2[m]SWCSTATO2695.7[m]SWCSTATO2701.1[m]SWCSTATO2708.6[m]SWCSTATO2709.2[m]SWCSTATO2709.6[m]SWCSTATO2710.8[m]SWCSTATO2717.5[m]SWCSTATO2720.7[m]SWCSTATO2726.4[m]SWCSTATO2733.5[m]SWCSTATO2740.9[m]SWCSTATO2743.2[m]SWCSTATO2749.0[m]SWCSTATO2754.5[m]SWCSTATO2760.0[m]SWCSTATO2765.5[m]SWCSTATO2769.0[m]DCGEOST2769.5[m]SWCSTATO2784.0[m]DCGEOST2787.0[m]DCGEOST2791.5[m]SWCSTATO2795.0[m]SWCSTATO2796.0[m]DCGEOST2803.0[m]SWCSTATO2820.0[m]DCGEOST2823.0[m]DCGEOST2832.0[m]DCGEOST2841.0[m]DCGEOST2847.0[m]DCGEOST2859.0[m]DCGEOST2868.0[m]DCGEOST2874.0[m]SWCSTATO2882.0[m]SWCSTATO2889.5[m]SWCSTATO2895.0[m]DCGEOST2898.0[m]DCGEOST2907.0[m]DCGEOST2916.0[m]DCGEOST2919.0[m]DCGEOST