6407/10-3
Export: PDF
-
General information
-
Wellbore history
GeneralWell 6407/10-3 is located ca 15 km south of the Njord Field. The primary target of the well was to test Upper Jurassic transgressive sandstone (Draugen analogue). Lower Jurassic to Upper Triassic sandstone was a possible secondary target. In summary, the main objectives for drilling the well 6407/10-3 were: to test the oil potential of Upper Jurassic transgressive sand; to test reservoir quality and hydrocarbon potential of the dipping pre-Jurassic reflectors; to penetrate the deep basement reflectors and test reservoir quality in order to prepare area for relinquishment.Operations and resultsWell 6407/10-3 was spudded with the semi-submersible installation Transocean 8 on 29 May 1992 and drilled to TD at 2973 m in the Triassic Red Beds. The well was drilled with seawater and hi-vis pills down to 907 m and with KCl/PHPA mud from 907 m to TD.The Upper Jurassic Viking Group was encountered at 1806 m and consisted of claystone characteristic of the Spekk Formation down to the Triassic section at 1827 m. From 1827 m to 1850 m Triassic Grey Beds were penetrated. From 1850 m to 2155 m undifferentiated Late to Middle Triassic Red Beds are present, followed by Carnian to Ladian Red Beds from 2155 m to 2555 m. Undifferentiated "red beds" continued to 2958.5 m, were the bore passed into fractured granitic basement. Weak shows were observed on cuttings from the Shetland and Cromer Knoll Groups (1518 m to 1785 m). Fair shows were observed on a core and a sidewall core from 1827 m to 1836 m in the Triassic Grey Beds. Two cores were cut, the first from 1830 m to1837 m in the Grey Beds, the second was a one-metre core at 2972 m at TD. No fluid samples were taken. The well was permanently abandoned on 27 June 1992 as a dry hole.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]820.002972.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom11830.01836.3[m ]22972.02972.6[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]6.9Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Core photos
-
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 typeCONDUCTOR30434.036436.00.00LOTINTERM.18 5/8802.026804.01.59LOTINTERM.13 3/81773.017 1/21775.01.94LOTOPEN HOLE2973.012 1/42973.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]CST GR17872952DIL LDL CNL GR SP AMS14502963DIL LSS LDL GR SP AMS8031768FMS-4 GR CAL17752973LSS GR AMS17752973MWD - GR RES DIR3472973RFT HP GR24632687VDL GR11851775VSP8502450VSP24502950 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit34734774381881813101310138215231523158116531770177018061806182718502959 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.45 -
Geochemical information
Geochemical information Document nameDocument formatDocument size [MB]pdf2.33 -
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]pdf13.89 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3691.04WATER BASED3801.4529.0WATER BASED4351.03WATER BASED7361.208.0WATER BASED9871.3028.0WATER BASED13441.3723.0WATER BASED15831.4227.0WATER BASED16561.2626.0WATER BASED16801.4529.0WATER BASED17881.3921.0WATER BASED18321.2521.0WATER BASED19531.2523.0WATER BASED21101.2520.0WATER BASED21361.2522.0WATER BASED22421.2526.0WATER BASED23491.2525.0WATER BASED24401.2522.0WATER BASED24891.2524.0WATER BASED29731.2526.0WATER BASED -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory820.0[m]DCHYDRO840.0[m]DCHYDRO860.0[m]DCHYDRO880.0[m]DCHYDRO900.0[m]DCHYDRO920.0[m]DCHYDRO940.0[m]DCHYDRO950.0[m]DCHYDRO970.0[m]DCHYDRO1000.0[m]DCHYDRO1020.0[m]DCHYDRO1030.0[m]DCHYDRO1060.0[m]DCHYDRO1310.0[m]DCHYDRO1320.0[m]DCHYDRO1330.0[m]DCHYDRO1350.0[m]DCHYDRO1360.0[m]DCHYDRO1370.0[m]DCHYDRO1380.0[m]DCHYDRO1390.0[m]DCHYDRO1400.0[m]DCHYDRO1410.0[m]DCHYDRO1420.0[m]DCHYDRO1430.0[m]DCHYDRO1440.0[m]DCHYDRO1450.0[m]DCHYDRO1460.0[m]DCHYDRO1470.0[m]DCHYDRO1480.0[m]DCHYDRO1490.0[m]DCHYDRO1500.0[m]DCHYDRO1560.0[m]DCHYDRO1570.0[m]DCHYDRO1580.0[m]DCHYDRO1590.0[m]DCHYDRO1610.0[m]DCHYDRO1630.0[m]DCHYDRO1645.0[m]DCHYDRO1655.0[m]DCHYDRO1665.0[m]DCHYDRO1675.0[m]DCHYDRO1685.0[m]DCHYDRO1695.0[m]DCHYDRO1705.0[m]DCHYDRO1785.0[m]DCHYDRO1795.0[m]DCHYDRO1803.0[m]SWCHYDRO1805.0[m]SWCHYDRO1805.0[m]DCHYDRO1807.0[m]DCHYDRO1807.0[m]SWCHYDRO1810.0[m]DCHYDRO1811.0[m]SWCHYDRO1815.0[m]SWCHYDRO1815.0[m]DCHYDRO1820.0[m]DCHYDRO1821.0[m]SWCHYDRO1825.0[m]DCHYDRO1827.0[m]DCHYDRO1827.0[m]SWCHYDRO1829.0[m]SWCHYDRO1831.0[m]SWCHYDRO1832.0[m]DCHYDRO1875.0[m]DCHYDRO1910.0[m]DCHYDRO1927.0[m]DCHYDRO1950.0[m]DCHYDRO1970.0[m]DCHYDRO1990.0[m]DCHYDRO2010.0[m]DCHYDRO2032.0[m]DCHYDRO2045.0[m]DCHYDRO2055.0[m]DCHYDRO2160.0[m]DCHYDRO2190.0[m]DCHYDRO2210.0[m]DCHYDRO2260.0[m]DCHYDRO2280.0[m]DCHYDRO2305.0[m]DCHYDRO2325.0[m]DCHYDRO2350.0[m]DCHYDRO2390.0[m]DCHYDRO2410.0[m]DCHYDRO2500.0[m]DCHYDRO2520.0[m]DCRRI2540.0[m]DCRRI2580.0[m]DCRRI2600.0[m]DCRRI2620.0[m]DCRRI2640.0[m]DCRRI2660.0[m]DCRRI2700.0[m]DCRRI2740.0[m]DCRRI2760.0[m]DCRRI2780.0[m]DCRRI2815.0[m]DCRRI