15/12-2
Export: PDF
-
General information
-
Wellbore history
GeneralWell 15/12-2 was drilled in order to evaluate Jurassic formations on a seismic structure located in the eastern part of block 15/12. The principal objective of the 15/12-2 well was to test the Dogger (Hugin Formation) sandstone, where oil shows had been encountered in the 15/12-1 well. A secondary object was a possible sand in the Paleocene.Operations and resultsWildcat well 15/12-2 was spudded with the semi-submersible installation Ross Rig on 7 January 1976 and drilled to TD at 2924 m in Late Permian Zechstein anhydrite. The well was drilled with a lignosulphonate mud system.No sand was found in the Paleocene. The Hugin Formation sandstone was found 304 meters higher than in the 15/12-1 well. The sandstone proved to have very good reservoir qualities, but was completely water bearing. There were sandstone stringers in the lower part of the Heather Formation. The Hugin Formation sand was cored from 2823 m to 2835.4 m, with no show. No fluid sampling was attempted in the well.The well was permanently abandoned as a dry well on 27 February 1976.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]145.002924.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12823.02835.4[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]12.4Cores at the Norwegian Offshore Directorate Cores available for sampling?YES -
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 typeCONDUCTOR30143.036145.00.00LOTSURF.COND.20344.026370.00.00LOTINTERM.13 3/81787.017 1/21943.00.00LOTOPEN HOLE2924.012 1/42924.00.00LOT -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]CNL BHC GR33504448DIL BHC GR33504448FDC CNL GR5654448HDT WSS CST CBL21503361ISF BHC GR1713361VSP3254450 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit11199310381963196320452075222422342234226824252525254226502650266727032703276528182818286828682888 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.28 -
Geochemical information
Geochemical information Document nameDocument formatDocument size [MB]pdf2.18pdf1.66 -
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]pdf8.12pdf46.86pdf1.66pdf0.78pdf32.61pdf0.68pdf58.67pdf1.66pdf1.83 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured3501.10seawater26501.41seawater -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory1005.0[m]DC1035.0[m]DC1065.0[m]DC1095.0[m]DC1125.0[m]DC1155.0[m]DC1185.0[m]DC1215.0[m]DC1245.0[m]DC1275.0[m]DC1295.0[m]DC1335.0[m]DC1375.0[m]DC1415.0[m]DC1455.0[m]DC1495.0[m]DC1535.0[m]DC1575.0[m]DC1615.0[m]DC1655.0[m]DC1695.0[m]DC1735.0[m]DC1775.0[m]DC1815.0[m]DC1845.0[m]DC1875.0[m]DC1905.0[m]DC1935.0[m]DC1965.0[m]DC1995.0[m]DC2015.0[m]DC2025.0[m]DC2045.0[m]DC2055.0[m]DC2065.0[m]DC2075.0[m]DC2085.0[m]DC2115.0[m]DC2145.0[m]DC2175.0[m]DC2205.0[m]DC2235.0[m]DC2266.0[m]DC2294.0[m]DC2324.0[m]DC2354.0[m]DC2384.0[m]DC2390.0[m]SWC2414.0[m]DC2414.0[m]DC2444.0[m]DC2474.0[m]DC2475.0[m]DC2504.0[m]DC2505.0[m]DC2534.0[m]DC2555.0[m]DC2564.0[m]DC2575.0[m]DC2594.0[m]DC2624.0[m]DC2654.0[m]DC2660.0[m]DC2680.0[m]DC2684.0[m]DC2700.0[m]DC2714.0[m]DC2744.0[m]DC2760.0[m]DC2774.0[m]DC2804.0[m]DC2818.0[m]DC2820.0[m]DC2823.0[m]C2823.3[m]C2825.0[m]C2827.5[m]C2829.0[m]C2830.0[m]C2831.1[m]C2832.0[m]C2833.0[m]C2834.0[m]C2834.0[m]DC2834.5[m]C2835.0[m]C2836.0[m]DC2864.0[m]DC2890.0[m]DC2894.0[m]DC2918.0[m]DC