16/2-19
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General information
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Wellbore history
GeneralThe 16/2-19 Geitungen well was drilled on the northern part of the Johan Sverdrup Field on the Utsira High in the North Sea. The primary objectives were to investigate the reservoir distribution, facies and quality in a more distal and down flank position and different seismic response than the Geitungen discovery well 16/2-12. The well was targeting possible Intra Draupne Formation sandstones to find the oil-water contact and to take water samples to aid the design of Johan Sverdrup production facilities.Operations and resultsAppraisal well 16/2-19 was spudded with the semi-submersible installation Ocean Vanguard on 1 March 2014 and drilled to TD at 2023 m in the granitic basement rock. The well was drilled and cored without any major problems. The well was drilled with spud mud down to 902 m and with XP-07 oil based mud from 902 m to TD.Intra Draupne sandstone was not encountered in the well. Top Statfjord Group sandstone came in at 1945 m and the upper 5 m was oil filled. Shows were observed from the well site description in the Draupne Formation above the Statfjord reservoir and in the Skagerrak Formation below the OWC, but no shows are observed in the Basement. Gas readings were generally low through the entire well.Three cores were cut with a total of 68.38 m recovery, starting from lower part of Cromer Knoll Group, through Viking Group, Statfjord Group, Hegre Group and down into the Basement. MDT samples were taken at 1945.13 m (oil with ca 4% OBM contamination), 1949.03 m (oil with ca 18% OBM contamination), and 1951.21 m (water).Since no Intra Draupne Formation sandstone was encountered in the well, it was decided to drill a sidetrack, 16/2-19 A.Well bore 16/2-19 was plugged back and prepared for sidetracking on 3 March 2016. It is classified 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]913.002023.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom11926.01952.0[m ]21952.01967.8[m ]31967.81994.4[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]68.4Cores 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 availableMDT1949.030.00OIL16.06.2014 - 00:00YESMDT1945.130.00OIL16.06.2014 - 00:00NO -
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 typeCONDUCTOR30199.436204.00.00PILOT HOLE718.09 7/8718.00.00INTERM.13 3/8890.517 1/2902.01.44FITLINER9 5/81891.012 1/41894.01.74LOTOPEN HOLE2023.08 1/22023.00.00 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]AIT PEX HNGS18642024CMR LSC GR18912024DUAL OBMI PPC MSIP PPC GR12722024MDT19341974MDT MINIDST19371967MDT MINIDST19481949MWD LWD - ARCVIS202902MWD LWD - ARCVRES6 ARC6 TELE67518501923MWD LWD - PD ARC TELE8801894USIT CBL GR417816USIT CBL GR13401888ZOVSP1851953 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit13880487295910431562156215861618169717031703172617771817182318381838190719201932193219451945195219521989 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3501.0328.0Spud Mud6171.2217.0XP-07 - Yellow8561.0324.0Spud Mud9021.1513.0XP-07 - #1417001.1718.0XP-07 - #1417631.2019.0XP-07 - Yellow18421.2520.0XP-07 - #1418941.2521.0XP-07 - #1419231.2019.0XP-07 - #1420231.2118.0XP-07 - #14 -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1029.0[m]DCROBERTSO1038.0[m]DCROBERT1047.0[m]DCROBERT1059.0[m]DCROBERT1071.0[m]DCROBERT1080.0[m]DCROBERT1092.0[m]DCROBERT1101.0[m]DCROBERT1113.0[m]DCROBERT1122.0[m]DCROBERT1131.0[m]DCROBERT1143.0[m]DCROBERT1163.0[m]DCROBERT1183.0[m]DCROBERT1203.0[m]DCROBERT1223.0[m]DCROBERT1243.0[m]DCROBERT1263.0[m]DCROBERT1283.0[m]DCROBERT1303.0[m]DCROBERT1313.0[m]DCROBERT1343.0[m]DCROBERT1363.0[m]DCROBERT1383.0[m]DCROBERT1403.0[m]DCROBERT1423.0[m]DCROBERT1443.0[m]DCROBERT1463.0[m]DCROBERT1483.0[m]DCROBERT1503.0[m]DCROBERT1523.0[m]DCROBERT1543.0[m]DCROBERT1563.0[m]DCROBERT1583.0[m]DCROBERT1623.0[m]DCROBERT1643.0[m]DCROBERT1663.0[m]DCROBERT1683.0[m]DCROBERT1703.0[m]DCROBERT1723.0[m]DCROBERT1743.0[m]DCROBERT1763.0[m]DCROBERT1783.0[m]DCROBERT1803.0[m]DCROBERT1823.0[m]DCROBERT1843.0[m]DCROBERT1863.0[m]DCROBERT1883.0[m]DCROBERT1903.0[m]DCROBERT1921.0[m]DCROBERT1930.4[m]CROBERT1933.3[m]CROBERT1935.4[m]CROBERT1937.5[m]CROBERT1940.2[m]CROBERT1941.5[m]CROBERT1942.5[m]CROBERT1944.2[m]CROBERT1944.5[m]CROBERT1948.0[m]CROBERT1950.0[m]CROBERT1952.2[m]CROBERT1955.3[m]CROBERT1957.6[m]CROBERT1962.9[m]CROBERT1965.7[m]CROBERT1968.1[m]CROBERT1990.0[m]DCROBERT