16/2-15
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General information
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Wellbore history
GeneralThe 16/2-15 Kvitsøy Basin well was drilled as an appraisal well for the Aldous Major South discovery in PL265 that together with Avaldsnes discovery in PL501 was to be called the Johan Sverdrup Field. The objective of 16/2-15 was to investigate the reservoir thickness, quality and facies in the southwestern part of the Johan Sverdrup Field. A specific objective was to obtain good water samples from the reservoir.Operations and resultsAppraisal well 16/2-15 was spudded with the semi-submersible installation Ocean Vanguard on 21 November 2012 and drilled to TD at 2006 in the Triassic Skagerrak Formation. A 9 7/8” pilot hole was drilled to 511 m to check for shallow gas. No shallow gas was observed. No significant problem was encountered in the operations. The well was drilled with seawater down to 736 m, with Performadril water based mud from 736 m to 1159 m, and with XP07 oil based mud from 1159 m to TD. The oil-based mud was chosen to avoid drill water contamination in the water samples from the reservoir.The target reservoir, Intra Draupne Formation sandstones, was encountered at 1913 m. The reservoir was oil filled down to top Statfjord Group at 1945 m. Pressure data and logs indicate a true OWC at this depth. Oil shows on cores continued down to 1958 m. Oil shows were not observed above top reservoir or below 1958 m.Five cores were cut from 1895 m in the Åsgard Formation and down through the entire reservoir section to 1990.7 m in the Skagerrak Formation. MDT fluid samples were taken at 1913.8 m (oil), 1916.6 m (oil), 1926.9 m (oil), 1946.5 m (water), and at 1957.1 m (water). Water samples of good quality was obtained.The well was permanently abandoned on 13 January 2013 as an oil appraisal 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]733.002006.37 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom11895.01910.7[m ]21911.01925.3[m ]31925.31938.9[m ]41938.91965.9[m ]51965.91990.7[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]95.4Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
Oil samples at the Norwegian Offshore Directorate
Oil samples at the Norwegian Offshore Directorate Test typeBottle numberTop depth
MD [m]Bottom depth
MD [m]Fluid typeTest timeSamples availableMDT1913.800.00OILNOMDT1926.900.00OILYES -
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 typeCONDUCTOR30194.036194.00.00SURF.COND.20720.0261010.01.57LOTINTERM.13 3/81145.017 1/21155.01.59LOTINTERM.9 5/81564.012 1/41577.01.56LOTOPEN HOLE2006.08 1/22006.00.00 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]2XOBMI MSIP GR14002001AIT PEX ADT HNGS GR15642006CMR ECS GR15641995MDT GR19131917MDT GR19171972MWD - GR RES ECD DIR1971574MWD - GR RES ECD DIR18942006MWD - GVR ARCRES DIR15741894MWD - SURVEY124197USIT CBL GR11501564VSP GR9001980 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit134794877912945968968102714351435145914681522153415341539167517541769179717971886191319131945194519691969 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured7181.2938.0Performadril7441.3031.0Performadril8541.3142.0Performadril11621.3525.0XP-07 - Yellow13531.2220.0XP-07 - Yellow13531.2418.0XP-07 - Yellow14631.2335.0XP-07 - Yellow15361.3526.0XP-07 - Yellow15771.2126.0XP-07 - Yellow16271.2216.0XP-07 - Yellow19651.2216.0XP-07 - Yellow20061.2220.0XP-07 - Yellow -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory751.0[m]DCROBERTSO760.0[m]DCROBERT769.0[m]DCROBERT778.0[m]DCROBERT784.0[m]DCROBERT790.0[m]DCROBERT796.0[m]DCROBERT802.0[m]DCROBERT808.0[m]DCROBERT814.0[m]DCROBERT820.0[m]DCROBERT826.0[m]DCROBERT832.0[m]DCROBERT838.0[m]DCROBERT844.0[m]DCROBERT850.0[m]DCROBERT856.0[m]DCROBERT862.0[m]DCROBERT868.0[m]DCROBERT874.0[m]DCROBERT880.0[m]DCROBERT886.0[m]DCROBERT892.0[m]DCROBERT898.0[m]DCROBERT904.0[m]DCROBERT910.0[m]DCROBERT916.0[m]DCROBERT922.0[m]DCROBERT928.0[m]DCROBERT934.0[m]DCROBERT940.0[m]DCROBERT946.0[m]DCROBERT952.0[m]DCROBERT958.0[m]DCROBERT964.0[m]DCROBERT970.0[m]DCROBERT976.0[m]DCROBERT982.0[m]DCROBERT988.0[m]DCROBERT994.0[m]DCROBERT1000.0[m]DCROBERT1006.0[m]DCROBERT1012.0[m]DCROBERT1018.0[m]DCROBERT1024.0[m]DCROBERT1030.0[m]DCROBERT1036.0[m]DCROBERT1042.0[m]DCROBERT1048.0[m]DCROBERT1054.0[m]DCROBERT1060.0[m]DCROBERT1066.0[m]DCROBERT1072.0[m]DCROBERT1078.0[m]DCROBERT1084.0[m]DCROBERT1090.0[m]DCROBERT1096.0[m]DCROBERT1102.0[m]DCROBERT1123.0[m]DCROBERT1144.0[m]DCROBERT1160.0[m]DCROBERT1180.0[m]DCROBERT1200.0[m]DCROBERT1220.0[m]DCROBERT1240.0[m]DCROBERT1260.0[m]DCROBERT1280.0[m]DCROBERT1300.0[m]DCROBERT1320.0[m]DCROBERT1340.0[m]DCROBERT1360.0[m]DCROBERT1380.0[m]DCROBERT1400.0[m]DCROBERT1420.0[m]DCROBERT1440.0[m]DCROBERT1460.0[m]DCROBERT1480.0[m]DCROBERT1500.0[m]DCROBERT1520.0[m]DCROBERT1540.0[m]DCROBERT1799.0[m]DCROBERT1820.0[m]DCROBERT1841.0[m]DCROBERT1859.0[m]DCROBERT1865.0[m]DCROBERT1871.0[m]DCROBERT1877.0[m]DCROBERT1883.0[m]DCROBERT1889.0[m]DCROBERT1894.0[m]DCROBERT1900.5[m]CROBERT1901.7[m]CROBERT1912.1[m]CROBERT1912.7[m]CROBERT1914.2[m]CROBERT1914.8[m]CROBERT1915.7[m]CROBERT1916.7[m]CROBERT1917.8[m]CROBERT1918.3[m]CROBERT1919.5[m]CROBERT1920.6[m]CROBERT1920.9[m]CROBERT1921.2[m]CROBERT1922.9[m]CROBERT1925.0[m]CROBERT1940.3[m]CROBERT1943.2[m]CROBERT1946.2[m]CROBERT1947.3[m]CROBERT1951.3[m]CROBERT1959.0[m]CROBERT1963.0[m]CROBERT1964.1[m]CROBERT1965.8[m]CROBERT1969.9[m]CROBERT1997.0[m]DCROBERT2006.4[m]DCROBERT