16/1-19 S

Exploration · Wildcat · P&A · Dry · Wintershall Norge AS · Ivar Aasen · PL 457

16/1-19 S is a wildcat exploration wellbore in the North Sea, drilled by Wintershall Norge AS, entered Aug 13, 2013, to 1,995 m in the Basement.

Discovery 16/1-9 Ivar Aasen · On the map →

1,995: m total depth · 1,984 m vertical
113: m water depth
Aug 13, 2013: entered · completed Oct 25, 2013
Basement: at total depth · Pre-Devonian
44.8: m of core in 3 cores
—: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED OCT 25, 2015

On file for this wellbore

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Drilling

Drilling facility: BORGLAND DOLPHIN · Semisub steel
Drilling days: 32
Kelly bushing elevation: 31 m
Maximum inclination: 10.10000038°
Drilling permit: 1458-L
Licensing round: TFO2007
Plugged and abandoned: Oct 25, 2013
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 58.90678° N, 2.30393° E

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 16/1-19 S was drilled on the Amol prospect about two and a half kilometres east of appraisal wells 16/1-16 and 16/1-16 A at the Ivar Aasen field, and about three kilometres north of the Edvard Grieg field in the central part of the North Sea. The primary objective was to prove petroleum in Early Cretaceous reservoir rocks (the Åsgard formation) in the western part of the Utsira High. The secondary target was to prove petroleum in fractured and/or weathered basement rocks.

Operations and results

Wildcat well 16/1-19 S was spudded with the semi-submersible installation Borgland Dolphin on 13 August 2013 and drilled to TD at 1995 in the Basement rock. A 9 7/8" pilot hole was drilled to 604 m without any indication of shallow gas. Operations were suspended twice to accommodate sidetrack operations on the Asha East prospect. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis pills down to 604 m, with Carbo-Sea oil based mud from 604 m to 1862 m, and with Aquadril mud from 1862 m to TD.

The Åsgard Formation was encountered at 1878 m and proved to contain only half a metre of tight sandstone/clay stone. The fractured basement was encountered at 1891 m with oil in the fractures. Live oil was sampled from the fractures, but the reservoir quality was poorer than expected.

Three cores were cut in the interval 1865 to 1910 m with 100% recovery. RCI oil samples were taken at 1929.5 m. The samples proved a GOR in the range 106 to 135 Sm3/Sm3, an oil density of ca 0.857 g/cm3, and a gas gravity of ca 0.97 (air = 1).

The well was permanently abandoned on 25 October 2013 as a well wit

Around this wellbore

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About this data

Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Depths are metres along the wellbore from the kelly bushing unless a row gives its own unit; older cores are filed in feet. A zero the Directorate files for an unmeasured pressure, density, or temperature is shown as a dash.

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