NORWAY · WELLBORES · NPDID 8411
6506/9-4 A
Exploration · Appraisal · P&A · Gas · Spirit Energy Norge AS · PL 433
6506/9-4 A is an appraisal exploration wellbore in the Norwegian Sea, drilled by Spirit Energy Norge AS, entered Apr 28, 2018, to 4,497 m in the Tofte Fm.
Discovery 6506/9-2 S (Fogelberg) · On the map →
- 4,497
- m total depth · 4,458 m vertical
- 301
- m water depth
- Apr 28, 2018
- entered · completed Jul 13, 2018
- Tofte Fm
- at total depth · Jurassic
- 46.2
- m of core in 2 cores
- 159
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JUL 13, 2020
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- ISLAND INNOVATOR · Semisub steel
- Drilling days
- 78
- Kelly bushing elevation
- 30 m
- Maximum inclination
- 11.19999981°
- Drilling permit
- 1694-L
- Licensing round
- TFO2006
- Plugged and abandoned
- Jul 14, 2018
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 65.26059° N, 6.70989° E
- Hydrocarbons in
- Garn Fm · Jurassic
- Hydrocarbons in
- Ile Fm · Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 6506/9-4 A is a geological side-track to well 6506/9-4 S, drilled on The Fogelberg Discovery on a small fault block on the Halten Terrace, north-northwest of the Smørbukk Field and northeast of the Morvin Field. The side-track was drilled up-flank to the crestal part of the structure where future production wells would be located. The primary objective of the side-track was to perform a DST and collect representative fluid samples.
Operations and results
Appraisal well 6506/9-4 A was kicked off in 14” casing at 2201 m on 28 April 2018. It was drilled with the semi-submersible installation Island Innovator to TD at 4497 m (4458 m TVD) m in the Early Jurassic Tofte Formation. Low penetration rate was experienced in the Lange Formation shales in the 12 ¼” section. The well was drilled with RheGuard Prime oil-based mud from kick-off to TD.
The Garn Formation was encountered at 4289.5 m (4254 m TVD), 13.5 m shallower than prognosis and top Ile Formation was picked at 4350.5 m (4313.8 m TVD), 13 m shallower than the prognosis. Approximately 57 m TVD gross sandstone of moderate to high quality was encountered in the Garn Formation and 66 m TVD gross moderate quality sandstone in the Ile Formation. Both formations were gas bearing.
Shows in the form of cut fluorescence was observed in several Intra-Lange sandstones, but not significantly different from the fluorescence caused by the oil-based mud.
Two cores were cut in succession from 4288.9 to 4341 m in the Garn Formation. The core recovery was 80.04% and 98.38% fore core 1 and 2, respectively. The core-log depth shifts were +1.8
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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