30/10-3
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General information
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Wellbore history
GeneralWell 30/10-3 was drilled on the Odin Discovery just north of the Frigg area. The main objective was to evaluate the Early Eocene sand ("Frigg Field Clastic Tongue") and appraise the 30/10-2 Odin gas Discovery.Operations and resultsAppraisal well 30/10-3 well was spudded with the semi-submersible installation Drillmaster on 8 August 1974 and drilled to TD at 2255 m in sands of the Paleocene Hermod Formation. Some anchor problems were experienced due to the sandy sea floor; otherwise no drilling problems were encountered during the operations. The mud used was a seawater, lignosulphonate system.Cuttings from 177 m to 704 m (Pliocene-Miocene undifferentiated) consisted of sand and shells (coquina). From 704 m to 1213 m (Oligocene) the section consisted of sand, coquina and traces of lignite between 780 m and 1213 m. From 1213 m to 1594 m the section is grey shale with stringers of thin micritic limestone. From 1594 m to 1823 m the section is predominantly grey shale with minor traces of micritic limestone. From 1824 m to 2030 m a green shale unit is present. At 2030 m (Top Frigg Clastic Tongue) the lithology changed to sand and continued to a depth of 2073 m. From 2073 m to 2182 m the section consisted of red brown shales and sands. From 2182 m to TD (Paleocene) the section is predominantly sand with some thin grey shales.The Paleocene sand was void of hydrocarbon shows. The Frigg Clastic Tongue was 43 m thick. Logs and cores indicated approximately 24 m of this interval contained oil and gas down to an oil-water contact at 2054 m. Net pay was 18 m of which 14 m was good clean gas sand and 4 m oil sand.Six cores were cut from 2010 m in the "Green shale unit" down to 2064 m, 34 m into the Frigg sand. Eight Formation Interval Test (FIT) fluid samples were recovered from four different depths in the Frigg sand. A sample from 2068.1 m 9.75 l water and 0.5 l mud; a sample from 2052.8 m contained 0.6 cf gas and 1.25 l oil; a sample from 2049.2 m contained 1 cf gas and 0.4 l oil; and a sample from 2040.6 m contained 32.5 cf of gas. The well was permanently abandoned on 31 August 1974 as an oil and gas 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]182.882254.61 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom16594.06624.0[ft ]26620.06655.0[ft ]36653.06683.0[ft ]46682.06712.0[ft ]56712.06745.0[ft ]66742.06772.0[ft ]Cores at the Norwegian Offshore Directorate Total core sample length [m]57.3Cores 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 typeLaboratory2080.0[ft]DC2200.0[ft]DC2320.0[ft]DC2370.0[ft]DCGEOCHEM2410.0[ft]DC2530.0[ft]DC2650.0[ft]DC2770.0[ft]DC2890.0[ft]DC3010.0[ft]DC3130.0[ft]DC3250.0[ft]DC3370.0[ft]DC3490.0[ft]DC3500.0[ft]SWC3550.0[ft]DC3670.0[ft]DC3760.0[ft]DCGEOCHEM3790.0[ft]DC3880.0[ft]DCGEOCHEM3910.0[ft]DC4000.0[ft]DCGEOCHEM4000.0[ft]DC4120.0[ft]DCGEOCHEM4120.0[ft]DC4200.0[ft]SWC4210.0[ft]DCGEOCHEM4240.0[ft]DC4300.0[ft]DCGEOCHEM4330.0[ft]DC4390.0[ft]DCGEOCHEM4420.0[ft]DC4480.0[ft]DCGEOCHEM4510.0[ft]DC4570.0[ft]DCGEOCHEM4600.0[ft]SWC4600.0[ft]DC4660.0[ft]DCGEOCHEM4690.0[ft]DC4720.0[ft]DCGEOCHEM4810.0[ft]DC4840.0[ft]DCGEOCHEM4900.0[ft]DC4960.0[ft]DCGEOCHEM5020.0[ft]DC5080.0[ft]DCGEOCHEM5140.0[ft]DC5200.0[ft]SWC5200.0[ft]DCGEOCHEM5260.0[ft]DC5320.0[ft]DCGEOCHEM5380.0[ft]DC5440.0[ft]DCGEOCHEM5500.0[ft]DC5560.0[ft]DCGEOCHEM5620.0[ft]DC5650.0[ft]DCGEOCHEM5710.0[ft]DC5740.0[ft]DCGEOCHEM5800.0[ft]SWC5800.0[ft]DC5830.0[ft]DCGEOCHEM5890.0[ft]DC5920.0[ft]DCGEOCHEM5980.0[ft]DC6010.0[ft]DCGEOCHEM6070.0[ft]DC6100.0[ft]DCGEOCHEM6160.0[ft]DC6190.0[ft]DCGEOCHEM6250.0[ft]DC6280.0[ft]DCGEOCHEM6340.0[ft]DC6430.0[ft]DC6460.0[ft]DCGEOCHEM6520.0[ft]DC6550.0[ft]DCGEOCHEM6597.0[ft]C6600.0[ft]CGEOCHEM6602.0[ft]C6602.0[ft]C6605.0[ft]C6607.0[ft]C6610.0[ft]C6614.0[ft]C6617.0[ft]C6620.0[ft]C6622.0[ft]C6626.0[ft]C6630.0[ft]C6633.0[ft]C6639.0[ft]C6643.0[ft]C6645.0[ft]C6645.0[ft]CGEOCHEM6646.0[ft]C6651.0[ft]C6654.0[ft]C6655.0[ft]C6705.0[ft]CGEOCHEM6765.0[ft]CGEOCHEM6770.0[ft]DC6860.0[ft]DCGEOCHEM6860.0[ft]DC6950.0[ft]DCGEOCHEM6950.0[ft]DC7040.0[ft]DCGEOCHEM7040.0[ft]DC7130.0[ft]DCGEOCHEM7130.0[ft]DC7220.0[ft]DCGEOCHEM7250.0[ft]DC7310.0[ft]DCGEOCHEM7310.0[ft]DC7380.0[ft]DC7397.0[ft]DCGEOCHEM -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit1303541135203020732164216421822188 -
Composite logs
Composite logs Document nameDocument formatDocument size [MB]pdf0.19 -
Geochemical information
Geochemical information Document nameDocument formatDocument size [MB]pdf0.06pdf0.96 -
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]pdf3.88 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]FDC CNT19372237GR1292235HDT15242238IES7012235SGR-C7012235VEL20402071 -
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 typeCONDUCTOR30166.036170.00.00LOTSURF.COND.13 3/8699.017 1/2700.00.00LOTOPEN HOLE2255.012 1/42255.00.00LOT -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured7201.02seawater16451.14seawater20541.30seawater22551.28seawater -
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]pdf0.20