NORWAY · WELLBORES · NPDID 8071

16/3-U-1

Other · Appraisal · P&A · Oil · Statoil Petroleum AS · Johan Sverdrup · PL 501

16/3-U-1 is an appraisal wellbore in the North Sea, drilled by Statoil Petroleum AS, entered Dec 13, 2016, to 2,005 m in the Basement.

Discovery 16/2-6 Johan Sverdrup · On the map →

2,005
m total depth · 1,999 m vertical
118
m water depth
Dec 13, 2016
entered · completed Dec 24, 2016
Basement
at total depth · Pre-Devonian
18.3
m of core in 1 core
82
°C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED DEC 24, 2018

On file for this wellbore

What the Directorate holds from this wellbore. Each opens the section that lists it.

Drilling

Drilling facility
DEEPSEA ATLANTIC · Semisub steel
Drilling days
12
Kelly bushing elevation
30 m
Maximum inclination
11.39999962°
Drilling permit
778-G
Licensing round
TFO2008
Plugged and abandoned
Jan 16, 2017
Core samples available
Yes
Cuttings samples available
Yes
Position · ED50
58.76852° N, 2.78385° E
Hydrocarbons in
Intra Draupne Fm Ss · Late Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 16/3-U-1 was drilled on the south-eastern end of the Johan Sverdrup Field on the Utsira High in the North Sea. The reservoir in this part of the field is below seismic resolution. The primary objective was to investigate sand presence, thickness and quality. Side-tracks were planned to further investigate horizontal well drilling and high angle hole time-stability in Draupne shales.

Operations and results

Well 16/3-U-1 was spudded with the semi-submersible installation Deepsea Atlantic on 13 December 2016 and drilled to TD at 2005 m (1999 m TVD) m in Basement rocks. The well was designed with open hole below the 13 3/8” casing shoe at 1119 m in the Hordaland Group. This allowed for reservoir logging at TD to be extended to the overburden. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis pills down to down to 1130 m and with Carbosea oil-based mud from 1130 m to TD.

The Draupne Formation was encountered at 1938 m (1932 m TVD), the Intra-Draupne Formation sandstone at 1950 m (1944 m TVD), and top Basement at 1959 m (1953 m TVD). The Intra-Draupne Formation sandstone had excellent reservoir properties and was oil-filled all through. No oil shows were described outside of the oil-bearing reservoir. Pressure data show ca 0.9 bar depletion in the reservoir compared to the pressure in well 16/3-5

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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