33/9-15
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General information
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Wellbore history
GeneralThe 33/9-15 well is located on the northwestern flank of the Tampen Spur geological province, on the western margin of the North Viking Graben. To the north of the well location lies the Statfjord Nord oil field with the main Statfjord oil field to the south and Statfjord Øst to the Southeast. Well 33/9-15 was drilled in the southern part of Licence PL172. The primary objective was to evaluate the hydrocarbon potential of a Late Jurassic Intra Draupne Sandstone unit, which was thought to be similar to, or possibly associated with, the nearby Statfjord Nord field. The secondary objective was to evaluate Middle Jurassic sands of the Brent Group.Operations and resultsThe well 33/9-15 was spudded with the semi-submersible rig Sovereign Explorer on 23 April 1992 and drilled to TD at 3007 m in the middle Jurassic Etive Formation. The well was drilled with seawater and hi-vis pills down to 416 m and with KCl / Polymer mud from 416 m to TD. Weak shows appeared on cores at the Mime Formation level. A thin oil zone was encountered at the top of the Munin sandstone unit of the Draupne Formation and two additional thin oil zones were seen further down in the Munin sandstone. No shows were seen in the Brent Group. Three RFT fluid samples were taken in the Intra Draupne Formation Sandstone at 2743.5 m, 2783.2 m, and 2829.8 m. They all contained water with trace of oil. The sample from 2829 m contained sufficient oil for analysis, which gave an oil density of 0.859 g/cm3 (33.1 API gravity). Eight cores were cut in the interval 2711 m to 2838 m, two in the Cromer Knoll Group, one from the base Mime Formation and into the upper Draupne Formation and the remaining five in the Draupne Formation.The well was permanently abandoned on 8 June 1992 as a dry hole with oil shows.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]430.003007.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12711.02721.8[m ]22723.02731.6[m ]32733.02769.6[m ]42770.22783.1[m ]52783.02800.5[m ]62801.02806.7[m ]72811.02820.0[m ]82820.02838.5[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]119.6Cores 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 typeCONDUCTOR30411.036416.00.00LOTINTERM.13 3/81199.017 1/21210.01.71LOTINTERM.9 5/82209.012 1/42218.01.90LOTOPEN HOLE3007.08 1/23007.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]CET GR6501200CST GR4211200CST GR21552205CST GR22272993CST GR25782993DIT LSS GR AMS LSS-VDL11992220DIT LSS LDT GR AMS2501204DIT SDT GR AMS SDT-VDL22083010DLL MSFL AMS GR22083010LDT CNT AMS NGT22083010LSAL SWAL GR4061198LSAL SWAL GR11582220LSAL SWAL GR21503010MWD - RES DIR GR MEM4161205MWD - RES DIR GR MEM12102218MWD - RES DIR GR MEM22183007MWD - RES GR DIR279413RFT HP GR P+S27762829RFT HP GR P+S27822783RFT HP GR P+S28282829SHDT AMS GR22083010VSP4003000 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit279924998120612381282169016901783192319351935212027022702271427172737274227422743284128512945294529583003 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.44 -
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]pdf59.97 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured4131.2620.0WATER BASED5351.1328.0WATER BASED8751.1328.0WATER BASED12051.1314.0WATER BASED12051.1314.0WATER BASED14901.2614.0WATER BASED17741.3516.0WATER BASED19431.4624.0WATER BASED22181.4930.0WATER BASED26031.5433.0WATER BASED27111.5733.0WATER BASED27701.5726.0WATER BASED27971.5730.0WATER BASED30071.5727.0WATER BASED -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory421.5[m]SWCRRI450.0[m]SWCRRI481.5[m]SWCRRI511.0[m]SWCRRI526.0[m]SWCRRI560.0[m]SWCRRI576.5[m]SWCRRI603.5[m]SWCRRI615.0[m]SWCRRI623.5[m]SWCRRI638.0[m]SWCRRI653.0[m]SWCRRI685.0[m]SWCRRI700.0[m]SWCRRI745.0[m]SWCRRI775.5[m]SWCRRI790.0[m]SWCRRI850.0[m]SWCRRI865.0[m]SWCRRI880.0[m]SWCRRI894.5[m]SWCRRI910.0[m]SWCRRI923.5[m]SWCRRI939.0[m]SWCRRI962.0[m]SWCRRI998.5[m]SWCRRI1024.5[m]SWCRRI1030.0[m]SWCRRI1041.0[m]SWCRRI1052.5[m]SWCRRI1067.0[m]SWCRRI1075.0[m]SWCRRI1092.0[m]SWCRRI1110.0[m]SWCRRI1130.0[m]SWCRRI1150.0[m]SWCRRI1180.0[m]SWCRRI1200.0[m]SWCRRI1220.0[m]DCRRI1240.0[m]DCRRI1260.0[m]DCRRI1280.0[m]DCRRI1290.0[m]DCRRI1300.0[m]DCRRI1320.0[m]DCRRI1340.0[m]DCRRI1360.0[m]DCRRI1380.0[m]DCRRI1400.0[m]DCRRI1420.0[m]DCRRI1440.0[m]DCRRI1460.0[m]DCRRI1480.0[m]DCRRI1500.0[m]DCRRI1520.0[m]DCRRI1540.0[m]DCRRI1540.0[m]DCRRI1560.0[m]DCRRI1580.0[m]DCRRI1600.0[m]DCRRI1610.0[m]DCRRI1620.0[m]DCRRI1640.0[m]DCRRI1660.0[m]DCRRI1680.0[m]DCRRI1690.0[m]DCRRI1700.0[m]DCRRI1710.0[m]DCRRI1720.0[m]DCRRI1740.0[m]DCRRI1760.0[m]DCRRI1780.0[m]DCRRI1800.0[m]DCRRI1820.0[m]DCRRI1840.0[m]DCRRI1860.0[m]DCRRI1880.0[m]DCRRI1900.0[m]DCRRI1920.0[m]DCRRI1940.0[m]DCRRI1960.0[m]DCRRI1980.0[m]DCRRI2000.0[m]DCRRI2020.0[m]DCRRI2040.0[m]DCRRI2060.0[m]DCRRI2080.0[m]DCRRI2100.0[m]DCRRI2120.0[m]DCRRI2140.0[m]DCRRI2150.0[m]DCRRI2155.0[m]SWCRRI2170.0[m]DCRRI2170.0[m]SWCRRI2185.0[m]SWCRRI2190.0[m]DCRRI2205.0[m]SWCRRI2210.0[m]DCRRI2220.0[m]DCRRI2240.0[m]SWCRRI2260.0[m]DCRRI2280.0[m]DCRRI2300.0[m]DCRRI2320.0[m]DCRRI2340.0[m]DCRRI2360.0[m]DCRRI2380.0[m]DCRRI2400.0[m]DCRRI2420.0[m]DCRRI2440.0[m]DCRRI2460.0[m]DCRRI2480.0[m]DCRRI2500.0[m]DCRRI2520.0[m]DCRRI2534.0[m]SWCRRI2550.0[m]DCRRI2565.0[m]SWCRRI2578.0[m]SWCRRI2588.0[m]SWCRRI2603.0[m]DCRRI2615.5[m]SWCRRI2633.0[m]DCRRI2651.0[m]DCRRI2669.0[m]DCRRI2687.0[m]DCRRI2696.0[m]DCRRI2706.5[m]SWCRRI2711.0[m]CRRI2714.0[m]CRRI2716.0[m]SWCRRI2718.0[m]CRRI2720.0[m]CRRI2725.0[m]CRRI2730.0[m]CRRI2731.0[m]CRRI2732.0[m]CRRI2733.0[m]CRRI2735.0[m]CRRI2737.0[m]CRRI2739.0[m]CRRI2740.0[m]CRRI2742.0[m]CRRI2744.0[m]CRRI2745.0[m]CRRI2747.0[m]CRRI2750.0[m]CRRI2753.0[m]CRRI2755.0[m]CRRI2760.0[m]CRRI2764.0[m]CRRI2768.0[m]CRRI2771.0[m]CRRI2774.0[m]CRRI2776.0[m]CRRI2781.0[m]CRRI2786.0[m]CRRI2788.0[m]CRRI2792.0[m]CRRI2796.0[m]CRRI2800.0[m]CRRI2804.0[m]CRRI2806.6[m]CRRI2808.0[m]DCRRI2812.0[m]CRRI2816.0[m]CRRI2820.0[m]CRRI2825.0[m]CRRI2830.0[m]CRRI2838.0[m]CRRI2843.0[m]DCRRI2849.0[m]DCRRI2852.0[m]DCRRI2865.0[m]SWCRRI2873.0[m]DCRRI2879.0[m]DCRRI2888.0[m]DCRRI2894.0[m]DCRRI2900.0[m]DCRRI2905.0[m]SWCRRI2909.0[m]DCRRI2912.0[m]DCRRI2918.0[m]DCRRI2924.0[m]DCRRI2930.0[m]DCRRI2933.0[m]DCRRI2939.0[m]DCRRI2942.0[m]DCRRI2943.0[m]SWCRRI2951.0[m]DCRRI2954.0[m]DCRRI2958.0[m]SWCRRI2963.0[m]DCRRI2963.0[m]DCRRI2965.5[m]SWCRRI2969.0[m]DCRRI2971.0[m]SWCRRI2978.0[m]DCRRI2987.0[m]DCRRI2996.0[m]DCRRI3002.0[m]DCRRI3007.0[m]DCRRI