NORWAY · WELLBORES · NPDID 9430
36/1-4 S
Exploration · Wildcat · P&A · Shows · Wellesley Petroleum AS · PL 885
36/1-4 S is a wildcat exploration wellbore in the North Sea, drilled by Wellesley Petroleum AS, entered Dec 18, 2021, to 3,255 m in the Basement.
- 3,255
- m total depth · 3,254 m vertical
- 211
- m water depth
- Dec 18, 2021
- entered · completed Jan 30, 2022
- Basement
- at total depth · Pre-Devonian
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JAN 25, 2023
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- BORGLAND DOLPHIN · Semisub steel
- Drilling days
- 44
- Kelly bushing elevation
- 31 m
- Maximum inclination
- 6.30000019°
- Drilling permit
- 1876-L
- Licensing round
- TFO2016
- Plugged and abandoned
- Jan 30, 2022
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.90586° N, 4.04885° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 36/1-4 was drilled to test the Hemispheres prospect on the M l y slope in the north-east North Sea. The primary objective was to prove economic volumes of hydrocarbons in the Late Jurassic Krossfjord Formation.
Operations and results
Wildcat well 36/1-4 was spudded with the semi-submersible installation Borgland Dolphin on 18 December 2021 and drilled to TD at 3255 m (3254 m TVD) in basement rock. Total NPT for the well was 193.75 hours (14.8 %) and WOW was 267.25 hours (20.4%). The main cause for NPT was lack of personnel due to health situation and problems with running 13 3/8" casing. The well was drilled with seawater and hi-vis pills down to 307 m with Glydril mud from 307 m to 1057 m, and with Verstatec oil-based mud from 1057 m to TD.
The well encountered 33 m cemented sandstone within the Krossfjord Formation, with shows described as: "no stain, patchy, pale yellow direct fluorescence, slow blooming, yellow-white cut fluorescence, faint, yellow-white residual ring under UV light." Otherwise, there were no increased gas readings, no hydrocarbon signature on the logs and no significant hydrocarbon shows on the cuttings.
Due to dry well no cores were cut and no pressure measurements or wireline data or fluid samples were collected.
The well was permanently abandoned on 30 January 2022 as a dry well.
Testing
No drill stem test was performed.
Around this wellbore
This wellbore on Sodir FactPages → · Press release →
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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