7226/2-1
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General information
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Wellbore history
GeneralThe 7226/2-1 Ververis well was drilled on a dome structure on the Bjarmeland platform in the Barents Sea. The objective was to prove hydrocarbons in the Realgrunnen Group of Jurassic age, in the Snadd Formation of Carnian age and in the Kobbe Formation of Anisian age.Operations and resultsWildcat well 7226/2-1 was spudded with the semi-submersible installation Polar Pioneer on 18 May 2008 and drilled to TD at 2992 m in the Early Triassic Havert Formation. No significant problems were encountered in the operations. No shallow gas was observed. The well was drilled with Seawater and hi-vis bentonite pills down to 544 m and with FormPro mud from 544 m to TD.The Ververis well penetrated a short Quaternary section and then a thin section of Cretaceous before dissecting both the Jurassic and Triassic sections. The well showed gas in the Kobbe Formation. There were also indications of hydrocarbons in the Havert Formation where the sandstones showed high resistivity during drilling, but the MDT log indicated that the reservoir was tight. No hydrocarbon/water contacts were observed in the well, only lithological gas-down-to contacts. In the Kobbe Formation on Obesum and in the Havert Formation on Ververis, there are strong indications that low permeable zones were plugged because of the properties of the mud. This has made it difficult to examine on the presence of hydrocarbons and flowing properties. Weak oil shows (yellowish fluorescence were recorded in the intervals 903 - 952 m, and at 1746 to 1747 m. No bottom hole temperature at final TD is given on the fact pages, due to no reliable downhole temperature obtained.Four cores were cut in the original hole: from 905 to 952 m (Tubåen Formation); 1365 to 1418 m (Snadd Formation); 1747 to 1751 m (Kobbe Formation), and from 2892 m to 2897 m in the Klappmyss Formation. Two more cores were cut in two coring sidetracks (T2 and T3) made after final TD in the original hole: from 2929 m to 2948.4 m in the Havert Formation and from 1896 m to 1927.9 m in the Kobbe Formation. MDT wire line water samples were taken at 905.3 m in the Tubåen Formation and at 1362 m in the Snadd Formation. MDT gas samples were taken at 1903.7 m, 1747.8 m, and at 1920.3 m in the Kobbe Formation.The well was permanently abandoned on 19 July 2008 as a gas discovery.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]546.002990.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom1905.0952.1[m ]21365.01418.5[m ]31747.01750.8[m ]42892.02896.1[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]108.5Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory546.0[m]DCSTATHYD564.0[m]DCSTATHY582.0[m]DCSTATHY594.0[m]DCSTATHY612.0[m]DCSTATHY624.0[m]DCSTATHY648.0[m]DCSTATHY666.0[m]DCSTATHY684.0[m]DCSTATHY702.0[m]DCSTATHY786.0[m]DCSTATHY795.0[m]DCSTATHY804.0[m]DCSTATHY837.0[m]DCSTATHY846.0[m]DCSTATHY855.0[m]DCSTATHY858.0[m]DCSTATHY864.0[m]DCSTATHY870.0[m]DCSTATHY888.0[m]DCSTATHY894.0[m]DCSTATHY907.6[m]CCSTATHY909.7[m]CCSTATHY913.3[m]CCSTATHY914.5[m]CCSTATHY917.4[m]CCSTATHY917.8[m]CCSTATHY922.7[m]CCSTATHY924.1[m]CCSTATHY928.1[m]CCSTATHY930.8[m]CCSTATHY932.8[m]CCSTATHY936.1[m]CCSTATHY938.4[m]CCSTATHY943.3[m]CCSTATHY944.5[m]CCSTATHY946.8[m]CCSTATHY947.3[m]CCSTATHY951.5[m]CCSTATHY960.0[m]DCSTATHY966.0[m]DCSTATHY972.0[m]DCSTATHY978.0[m]DCSTATHY987.0[m]DCSTATHY993.0[m]DCSTATHY999.0[m]DCSTATHY1005.0[m]DCSTATHY1011.0[m]DCSTATHY1017.0[m]DCSTATHY1023.0[m]DCSTATHY1029.0[m]DCSTATHY1038.0[m]DCSTATHY1044.0[m]DCSTATHY1050.0[m]DCSTATHY1056.0[m]DCSTATHY1068.0[m]DCSTATHY1074.0[m]DCSTATHY1080.0[m]DCSTATHY1092.0[m]DCSTATHY1098.0[m]DCSTATHY1104.0[m]DCSTATHY1116.0[m]DCSTATHY1122.0[m]DCSTATHY1128.0[m]DCSTATHY1134.0[m]DCSTATHY1140.0[m]DCSTATHY1152.0[m]DCSTATHY1158.0[m]DCSTATHY1224.0[m]DCSTATHY1266.0[m]DCSTATHY1302.0[m]DCSTATHY1314.0[m]DCSTATHY1326.0[m]DCSTATHY1338.0[m]DCSTATHY1347.0[m]DCSTATHY1377.7[m]CCSTATHY1382.3[m]CCSTATHY1422.0[m]DCSTATHY1434.0[m]DCSTATHY1440.0[m]DCSTATHY1446.0[m]DCSTATHY1458.0[m]DCSTATHY1464.0[m]DCSTATHY1470.0[m]DCSTATHY1482.0[m]DCSTATHY1488.0[m]DCSTATHY1494.0[m]DCSTATHY1500.0[m]DCSTATHY1512.0[m]DCSTATHY1518.0[m]DCSTATHY1524.0[m]DCSTATHY1530.0[m]DCSTATHY1542.0[m]DCSTATHY1548.0[m]DCSTATHY1554.0[m]DCSTATHY1566.0[m]DCSTATHY1572.0[m]DCSTATHY1578.0[m]DCSTATHY1590.0[m]DCSTATHY1596.0[m]DCSTATHY1611.0[m]DCSTATHY1629.0[m]DCSTATHY1638.0[m]DCSTATHY1659.0[m]DCSTATHY1677.0[m]DCSTATHY1686.0[m]DCSTATHY1707.0[m]DCSTATHY1719.0[m]DCSTATHY1728.0[m]DCSTATHY1748.3[m]CCSTATHY1750.4[m]CCSTATHY1758.0[m]DCSTATHY1773.0[m]DCSTATHY1791.0[m]DCSTATHY1797.0[m]DCSTATHY1815.0[m]DCSTATHY1839.0[m]DCSTATHY1845.0[m]DCSTATHY1863.0[m]DCSTATHY1881.0[m]DCSTATHY1905.0[m]DCSTATHY1911.0[m]DCSTATHY1929.0[m]DCSTATHY1941.0[m]DCSTATHY1959.0[m]DCSTATHY1965.0[m]DCSTATHY1977.0[m]DCSTATHY1989.0[m]DCSTATHY2007.0[m]DCSTATHY2025.0[m]DCSTATHY2043.0[m]DCSTATHY2061.0[m]DCSTATHY2085.0[m]DCSTATHY2103.0[m]DCSTATHY2127.0[m]DCSTATHY2139.0[m]DCSTATHY2151.0[m]DCSTATHY2163.0[m]DCSTATHY2181.0[m]DCSTATHY2187.0[m]DCSTATHY2205.0[m]DCSTATHY2223.0[m]DCSTATHY2235.0[m]DCSTATHY2247.0[m]DCSTATHY2265.0[m]DCSTATHY2283.0[m]DCSTATHY2301.0[m]DCSTATHY2331.0[m]DCSTATHY2346.0[m]DCSTATHY2361.0[m]DCSTATHY2379.0[m]DCSTATHY2388.0[m]DCSTATHY2400.0[m]DCSTATHY2418.0[m]DCSTATHY2442.0[m]DCSTATHY2466.0[m]DCSTATHY2484.0[m]DCSTATHY2514.0[m]DCSTATHY2532.0[m]DCSTATHY2544.0[m]DCSTATHY2550.0[m]DCSTATHY2562.0[m]DCSTATHY2580.0[m]DCSTATHY2592.0[m]DCSTATHY2610.0[m]DCSTATHY2640.0[m]DCSTATHY2646.0[m]DCSTATHY2664.0[m]DCSTATHY2682.0[m]DCSTATHY2706.0[m]DCSTATHY2712.0[m]DCSTATHY2724.0[m]DCSTATHY2730.0[m]DCSTATHY2748.0[m]DCSTATHY2772.0[m]DCSTATHY2790.0[m]DCSTATHY2796.0[m]DCSTATHY2814.0[m]DCSTATHY2832.0[m]DCSTATHY2838.0[m]DCSTATHY2850.0[m]DCSTATHY2856.0[m]DCSTATHY -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit37045445472775486490190195010521694169423252930 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.47 -
Geochemical information
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Logs
Logs Log typeLog top depth [m]Log bottom depth [m]ECS PEX IS PPC MSIP PPC CMR15992988FMI HRLA ECRD8501598HRLA HNGS FMI15992988MDT9051362MDT PA PS17472116MDT PS PA17392938MSCT29420MSIP PEX8021598MWD LWD - ARCVRES6 PP16831896MWD LWD - ARCVRES6 PP27622929MWD LWD - ARCVRES6 PP GVR616002992MWD LWD - ARCVRES8 PP GVR88551600MWD LWD - ARCVRES8 PP SONVIS8370700MWD LWD - ARCVRES9 TELE544855PEX DSI370855ZO VSP4102992 -
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 typeCONDUCTOR30419.036423.00.00LOTSURF.COND.20536.026544.01.60LOTPILOT HOLE700.09 7/8700.00.00LOTSURF.COND.13 3/8850.017 1/2855.01.86LOTINTERM.9 5/81599.012 1/41600.02.01FITOPEN HOLE2992.08 1/22992.00.00LOT -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3391.5417.0Form Pro8241.288.0FormPro8551.2814.0FormPro9051.2814.0Form Pro11821.2913.0Form Pro15121.3316.0FormPro16001.3413.0FormPro16001.3416.0Form Pro17191.4519.0FloPro18741.4318.0FormPro19281.5419.0Form Pro23751.4120.0FormPro26471.4221.0FormPro27401.4216.0FloPro28921.4222.0FormPro29481.4215.0FloPro29921.4220.0FormPro -
Thin sections at the Norwegian Offshore Directorate
Thin sections at the Norwegian Offshore Directorate DepthUnit1365.75[m ]1376.75[m ]1387.00[m ]1392.45[m ]1400.75[m ]1406.45[m ]1410.25[m ]1747.75[m ] -
Pressure plots
Pressure plots The pore pressure data is sourced from well logs if no other source is specified. In some wells where pore pressure logs do not exist, information from Drill stem tests and kicks have been used. The data has been reported to the NPD, and further processed and quality controlled by IHS Markit.Pressure plots Document nameDocument formatDocument size [MB]pdf0.28