16/2-19 A
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General information
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Wellbore history
GeneralWell 16/2-19 A is a geological sidetrack to the 16/2-19 Geitungen well. The well is drilled on the northern part of the Johan Sverdrup Field on the Utsira High in the North Sea. The sidetrack 16/2-19 A targeted Intra Draupne Formation Sandstones in an assumed depocentre in a more distal position than the 16/2-12 but in a more proximal position than 16/2-19. The objectives were to investigate the reservoir distribution, facies and quality of the Draupne sandstone, and to find the oil-water contact.Operations and resultsAppraisal well 16/2-19 A was kicked off through 13 3/8" casing at 625.5 m in the primary well on 3 April 2014. It was drilled with the semi-submersible installation Ocean Vanguard to TD at 2347 m (1979 m TVD) in granitic basement rock. No significant problem was encountered in the operations. The well was drilled with XP-07 oil based mud from kick-off to TD.Draupne Formation claystone was penetrated at 2265 m, while Intra Draupne Formation Sandstone came in at 2271 m. A 13 m gross oil column was encountered in Intra Draupne Formation sandstone and Triassic Skagerrak Formation sandstone, the upper 3 m of which were in sandstone with very good reservoir quality. An oil-down-to situation was encountered. Oil shows described in in the reservoir section from 2270 m to 2289 m; otherwise, no shows are reported from the well.Two cores were cut across the reservoir section. Core 1 was cut from 2256.5 m in the Åsgard Formation, through Draupne formation claystone and Intra Draupne Formation Sandstone to 2283.2 m in the uppermost Hegre Group with 100% recovery. Core 2 was cut from 2283.2 m to 2305.1 m in the Skagerrak Formation with 99% recovery. MDT fluid samples were taken at 2281.04 m (oil with trace OBM contamination) and 2291.74 m (oil with ca 30% OBM contamination).The well was permanently abandoned on 3 May 2014 as an oil appraisal well. A CATS system was installed for long term monitoring of pressure and temperature.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]630.002348.00 -
Cores at the Norwegian Offshore Directorate
Cores at the Norwegian Offshore Directorate Core sample numberCore sample - top depthCore sample - bottom depthCore sample depth - uom12256.52283.2[m ]22283.22304.8[m ]Cores at the Norwegian Offshore Directorate Total core sample length [m]48.2Cores 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 availableMDT2291.700.00OIL18.09.2014 - 00:00YESMDT2281.000.00OIL18.09.2014 - 00:00YES -
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 typeINTERM.9 5/82120.012 1/42126.01.40FITLINER72335.08 1/22347.00.00 -
Logs
Logs Log typeLog top depth [m]Log bottom depth [m]AIT PEX HNGS21202345DUAL OBMI PPC MSIP PPC21202345EXPRO CPST10051005MDT MINIDST22702292MWD LWD - ARCVIS202902MWD LWD - ARCVRES6 TELE67521202131MWD LWD - ARCVRES6 TELE67522622347MWD LWD - PD ARC TELE6252126PERFO22772283USIT CBL GR16102120XPT ECS CMR21202345 -
Lithostratigraphy
Lithostratigraphy Top depth [mMD RKB]Lithostrat. unit1388158981003111117781778180718291936194819481965205321332144216821682247225022652265228322832310 -
Drilling mud
Drilling mud Depth MD [m]Mud weight [g/cm3]Visc. [mPa.s]Yield point [Pa]Mud typeDate measured7151.2317.0XP-07 - Yellow14941.3924.0XP-07 - Yellow21261.3923.0XP-07 - Yellow21261.4123.0XP-07 - Yellow21271.2218.0XP-07 - Yellow23051.2418.0XP-07 - Yellow23221.2116.0XP-07 - Yellow23471.1717.0XP-07 - Yellow23481.2117.0XP-07 - Yellow -
Palynological slides at the Norwegian Offshore Directorate
Palynological slides at the Norwegian Offshore Directorate Sample depthDepth unitSample typeLaboratory650.0[m]DCROBERTSO660.0[m]DCROBERT670.0[m]DCROBERT680.0[m]DCROBERT690.0[m]DCROBERT700.0[m]DCROBERT710.0[m]DCROBERT720.0[m]DCROBERT730.0[m]DCROBERT740.0[m]DCROBERT750.0[m]DCROBERT760.0[m]DCROBERT770.0[m]DCROBERT780.0[m]DCROBERT790.0[m]DCROBERT800.0[m]DCROBERT810.0[m]DCROBERT820.0[m]DCROBERT830.0[m]DCROBERT840.0[m]DCROBERT850.0[m]DCROBERT870.0[m]DCROBERT880.0[m]DCROBERT890.0[m]DCROBERT900.0[m]DCROBERT910.0[m]DCROBERT920.0[m]DCROBERT930.0[m]DCROBERT940.0[m]DCROBERT950.0[m]DCROBERT960.0[m]DCROBERT970.0[m]DCROBERT980.0[m]DCROBERT990.0[m]DCROBERT1000.0[m]DCROBERT1010.0[m]DCROBERT1020.0[m]DCROBERT1030.0[m]DCROBERT1040.0[m]DCROBERT1050.0[m]DCROBERT1070.0[m]DCROBERT1080.0[m]DCROBERT1090.0[m]DCROBERT1100.0[m]DCROBERT1110.0[m]DCROBERT1120.0[m]DCROBERT1130.0[m]DCROBERT1140.0[m]DCROBERT1150.0[m]DCROBERT1160.0[m]DCROBERT1170.0[m]DCROBERT1180.0[m]DCROBERT1190.0[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]DCROBERT1560.0[m]DCROBERT1580.0[m]DCROBERT1600.0[m]DCROBERT1620.0[m]DCROBERT1640.0[m]DCROBERT1680.0[m]DCROBERT1700.0[m]DCROBERT1720.0[m]DCROBERT1740.0[m]DCROBERT1760.0[m]DCROBERT1780.0[m]DCROBERT1800.0[m]DCROBERT1820.0[m]DCROBERT1840.0[m]DCROBERT1880.0[m]DCROBERT1900.0[m]DCROBERT1920.0[m]DCROBERT1940.0[m]DCROBERT1960.0[m]DCROBERT1980.0[m]DCROBERT2000.0[m]DCROBERT2020.0[m]DCROBERT2060.0[m]DCROBERT2080.0[m]DCROBERT2100.0[m]DCROBERT2120.0[m]DCROBERT2126.5[m]CROBERT2133.0[m]DCROBERT2139.0[m]DCROBERT2145.0[m]DCROBERT2169.0[m]DCROBERT2175.0[m]DCROBERT2181.0[m]DCROBERT2187.0[m]DCROBERT2196.0[m]DCROBERT2208.0[m]DCROBERT2214.0[m]DCROBERT2226.0[m]DCROBERT2232.0[m]DCROBERT2238.0[m]DCROBERT2244.0[m]DCROBERT2250.0[m]DCROBERT2263.7[m]CROBERT2267.5[m]CROBERT2269.5[m]CROBERT2272.1[m]CROBERT2272.9[m]CROBERT2274.9[m]CROBERT2275.9[m]CROBERT2280.6[m]CROBERT2283.2[m]CROBERT2285.9[m]CROBERT2307.0[m]DCROBERT2313.0[m]DCROBERT2319.0[m]DCROBERT2325.0[m]DCROBERT