6403/6-1
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General information
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Wellbore history
GeneralWildcat well 6403/6-1 is located ca 80 km west-northwest of the 6405/7-1 Ellida oil discovery. It was drilled on the Edvarda structure, located along the Jan-Mayen Lineament in the transition zone between the Møre Basin in the south and the Vøring Basin in the north. The objective of the well was to verify the presence of hydrocarbons in reservoir formations of Campanian age in the Nise Formation and the Lysing member of the Kvitnos Formation. An additional objective was to test for the presence of reservoirs in Paleocene and Maastrichtian deposits.Operations and resultsWell 6406/3-1 was spudded on 10 April 2006 with the semi-submersible installation Eirik Raude and drilled to TD at 4120 m in the Late Cretaceous Kvitnos Formation. An 8 1/2" pilot hole, designated 6403/6-U-1, was spudded on 6 April 2006 and drilled to a total depth of 2400 m prior to drilling the main hole. The objective of the pilot hole was to detect for possibly overpressured sands in the shallow formations whilst secondarily, to get good logging data of the upper section. Both the pilot and the main holes were drilled without significant technical problems and within time budget.The pilot 6403/6-U-1was drilled with Seawater/Bentonite all through. The main hole was drilled with Seawater/CMC down to 2394 m, with the Ultradrill mud system from 2394 m to 2748 m, with Ultradrill DeepWater mud system (with hydrate inhibition) from 2748 m to 3177 m, and with Ultradrill mud from 3177 m to TD. The Ultradrill mud contains the "Ultrafree NS" agent, a Linear Alfa Olefin (LAO) component. Gas chromatographic analyses showed that it contained two (not one) major olefins in addition to many more organic compounds.Well 6403/6-1 was spudded 44 m from the pilot hole location in 1721 m of water depth. The well was drilled vertically through Quaternary, Tertiary and Late Cretaceous formations to a total depth of 4120 m, in the Lysing member. The primary Nise Formation target was penetrated at 3047.5 m and consisted of interbedded sandstones, siltstones and shales. One core was cut from 3058 m to 3084.5 m. Extensive wire line data acquisition was performed, including MDT pressure testing and sidewall cores. No fluid samples were acquired due to the very tight nature of the sands. No shows were recorded while drilling, but traces of migrated hydrocarbons were interpreted from post-well organic geochemical analyses in an SWC at 3056.5 m in the uppermost Nise Formation. The secondary target, the Lysing member, was encountered at 4018 m, the base not being penetrated. This formation consisted of interbedded shales and sands with very poor reservoir properties. The coring criteria were not met, but an extensive wire line data acquisition program was performed. The reservoir quality was such that neither pre-tests nor fluid samples could be acquired. No shows were recorded.The well was permanently abandoned on 23 July 2006 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]2405.004119.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom13058.13084.4[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]26.2Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
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 typeCONDUCTOR301843.0361845.00.00LOTSURF.COND.202394.0262394.01.19LOTINTERM.162548.017 1/22560.01.29LOTINTERM.13 3/82741.014 3/42748.01.34LOTINTERM.9 5/82983.012 1/42983.01.46LOTINTERM.73768.08 1/23775.01.50LOTOPEN HOLE4120.064120.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]DSI HRLA PEX HNGS18832560DSI HRLA PEX HNGS24642750DSI PEX HRLA HNGS27402976FMI MSIP37684120MDT29833050MDT29833066MDT-DP GR30533235MSCT GR24052545MSCT GR27622993MSCT GR37844112MSIP FMI HNGS29833773MWD - ONTRACK18432400MWD - ONTRACK ECD GR APX DIR27492983MWD - ONTRACK ECD GR RES DIR23952749MWD - ONTRACK ECD GR RES DIR29834120MWD - ONTRACK ORD CCN APX17461758MWD - ONTRACK ORD CCN APX21222122PEX HRLA ECS29833772PEX HRLA HNGS23474110PEX HRLA HNGS37684120VSI GR17582348VSI GR21502740VSI GR26543029 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit17461746178619061906214021402256243924393048347540184018 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.52 -
Geochemical information
Geochemical information Document nameDocument formatDocument size [MB]txt0.00txt0.22pdf0.28pdf1.79 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured24001.0830.0ULTRADRILL25601.1216.0ULTRADRILL26081.14ULTRADRILL26751.1817.0ULTRADRILL28501.2216.0ULTRADRILL29831.2315.0ULTRADRILL30001.2515.0ULTRADRILL30271.2318.0ULTRADRILL31381.2317.0ULTRADRILL35791.1815.0ULTRADRILL37681.2920.0ULTRADRILL37751.1816.0ULTRADRILL37821.2115.0ULTRADRILL41201.2920.0ULTRADRILL -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1773.0[m]ROVPETROSTR1802.0[m]ROVPETROS1831.0[m]ROVPETROS1861.0[m]ROVPETROS1946.0[m]ROVPETROS1977.0[m]ROVPETROS2035.0[m]ROVPETROS2092.0[m]ROVPETROS2151.0[m]ROVPETROS2180.0[m]ROVPETROS2235.0[m]ROVPETROS2259.0[m]ROVPETROS2286.0[m]ROVPETROS2312.0[m]ROVPETROS2370.0[m]ROVPETROS2400.0[m]ROVPETROS2410.0[m]DCPETROS2420.0[m]DCPETROS2430.0[m]DCPETROS2440.0[m]DCPETROS2450.0[m]DCPETROS2460.0[m]DCPETROS2470.0[m]DCPETROS2480.0[m]DCPETROS2490.0[m]DCPETROS2500.0[m]DCPETROS2510.0[m]DCPETROS2520.0[m]DCPETROS2530.0[m]DCPETROS2540.0[m]DCPETROS2550.0[m]DCPETROS2560.0[m]DCPETROS2570.0[m]DCPETROS2580.0[m]DCPETROS2590.0[m]DCPETROS2600.0[m]DCPETROS2610.0[m]DCPETROS2620.0[m]DCPETROS2630.0[m]DCPETROS2640.0[m]DCPETROS2650.0[m]DCPETROS2670.0[m]DCPETROS2690.0[m]DCPETROS2700.0[m]DCPETROS2710.0[m]DCPETROS2720.0[m]DCPETROS2730.0[m]DCPETROS2740.0[m]DCPETROS2748.0[m]DCPETROS2760.0[m]DCPETROS2770.0[m]DCPETROS2780.0[m]DCPETROS2790.0[m]DCPETROS2800.0[m]DCPETROS2810.0[m]DCPETROS2820.0[m]DCPETROS2830.0[m]DCPETROS2840.0[m]DCPETROS2850.0[m]DCPETROS2860.0[m]DCPETROS2870.0[m]DCPETROS2880.0[m]DCPETROS2890.0[m]DCPETROS2900.0[m]DCPETROS2910.0[m]DCPETROS2920.0[m]DCPETROS2930.0[m]DCPETROS2940.0[m]DCPETROS2950.0[m]DCPETROS2960.0[m]DCPETROS2970.0[m]DCPETROS2990.0[m]DCPETROS3000.0[m]DCPETROS3010.0[m]DCPETROS3020.0[m]DCPETROS3030.0[m]DCPETROS3039.0[m]DCPETROS3048.0[m]DCPETROS3054.0[m]DCPETROS3060.0[m]DCPETROS3087.0[m]DCPETROS3093.0[m]DCPETROS3099.0[m]DCPETROS3105.0[m]DCPETROS3111.0[m]DCPETROS3117.0[m]DCPETROS3123.0[m]DCPETROS3129.0[m]DCPETROS3135.0[m]DCPETROS3141.0[m]DCPETROS3147.0[m]DCPETROS3153.0[m]DCPETROS3159.0[m]DCPETROS3165.0[m]DCPETROS3171.0[m]DCPETROS3177.0[m]DCPETROS3183.0[m]DCPETROS3195.0[m]DCPETROS3201.0[m]DCPETROS3207.0[m]DCPETROS3213.0[m]DCPETROS3219.0[m]DCPETROS3225.0[m]DCPETROS3231.0[m]DCPETROS3237.0[m]DCPETROS3243.0[m]DCPETROS3249.0[m]DCPETROS3255.0[m]DCPETROS3261.0[m]DCPETROS3267.0[m]DCPETROS3273.0[m]DCPETROS3282.0[m]DCPETROS3288.0[m]DCPETROS3294.0[m]DCPETROS3300.0[m]DCPETROS3306.0[m]DCPETROS3312.0[m]DCPETROS3317.0[m]DCPETROS3324.0[m]DCPETROS3330.0[m]DCPETROS3336.0[m]DCPETROS3342.0[m]DCPETROS3354.0[m]DCPETROS3360.0[m]DCPETROS3372.0[m]DCPETROS3378.0[m]DCPETROS3384.0[m]DCPETROS3390.0[m]DCPETROS3396.0[m]DCPETROS3402.0[m]DCPETROS3408.0[m]DCPETROS3414.0[m]DCPETROS3420.0[m]DCPETROS3429.0[m]DCPETROS3432.0[m]DCPETROS3438.0[m]DCPETROS3444.0[m]DCPETROS3450.0[m]DCPETROS3456.0[m]DCPETROS3462.0[m]DCPETROS3468.0[m]DCPETROS3474.0[m]DCPETROS3480.0[m]DCPETROS3486.0[m]DCPETROS3492.0[m]DCPETROS3501.0[m]DCPETROS3504.0[m]DCPETROS3510.0[m]DCPETROS3516.0[m]DCPETROS3522.0[m]DCPETROS3528.0[m]DCPETROS3534.0[m]DCPETROS3540.0[m]DCPETROS3546.0[m]DCPETROS3552.0[m]DCPETROS3558.0[m]DCPETROS3564.0[m]DCPETROS3570.0[m]DCPETROS3576.0[m]DCPETROS3582.0[m]DCPETROS3588.0[m]DCPETROS3594.0[m]DCPETROS3600.0[m]DCPETROS3606.0[m]DCPETROS3612.0[m]DCPETROS3618.0[m]DCPETROS3627.0[m]DCPETROS3630.0[m]DCPETROS3636.0[m]DCPETROS3642.0[m]DCPETROS3648.0[m]DCPETROS3651.0[m]DCPETROS3663.0[m]DCPETROS3666.0[m]DCPETROS3672.0[m]DCPETROS3678.0[m]DCPETROS3684.0[m]DCPETROS3690.0[m]DCPETROS3696.0[m]DCPETROS3702.0[m]DCPETROS3708.0[m]DCPETROS3714.0[m]DCPETROS3720.0[m]DCPETROS3738.0[m]DCPETROS3744.0[m]DCPETROS3750.0[m]DCPETROS3756.0[m]DCPETROS3762.0[m]DCPETROS3768.0[m]DCPETROS3774.0[m]DCPETROS3780.0[m]DCPETROS3789.0[m]DCPETROS3798.0[m]DCPETROS3807.0[m]DCPETROS3816.0[m]DCPETROS3825.0[m]DCPETROS3834.0[m]DCPETROS3843.0[m]DCPETROS3852.0[m]DCPETROS3861.0[m]DCPETROS3870.0[m]DCPETROS3879.0[m]DCPETROS3891.0[m]DCPETROS3903.0[m]DCPETROS3915.0[m]DCPETROS3924.0[m]DCPETROS3933.0[m]DCPETROS3942.0[m]DCPETROS3951.0[m]DCPETROS3960.0[m]DCPETROS3969.0[m]DCPETROS3978.0[m]DCPETROS3987.0[m]DCPETROS3996.0[m]DCPETROS4005.0[m]DCPETROS4014.0[m]DCPETROS4023.0[m]DCPETROS4032.0[m]DCPETROS4041.0[m]DCPETROS4050.0[m]DCPETROS4059.0[m]DCPETROS4068.0[m]DCPETROS4077.0[m]DCPETROS4086.0[m]DCPETROS4095.0[m]DCPETROS4110.0[m]DCPETROS4119.0[m]DCPETROS -
Thin sections at the Norwegian Offshore Directorate
Thin sections at the Norwegian Offshore Directorate DepthUnit3068.74[m ]