NORWAY · WELLBORES · NPDID 313
15/3-3
Exploration · Appraisal · P&A · Gas/condensate · Elf Petroleum Norge AS · Gudrun · PL 025
15/3-3 is an appraisal exploration wellbore in the North Sea, drilled by Elf Petroleum Norge AS, entered Jan 5, 1979, to 5,115 m in the Skagerrak Fm.
Discovery 15/3-1 S Gudrun · On the map →
- 5,115
- m total depth · 5,112 m vertical
- 109
- m water depth
- Jan 5, 1979
- entered · completed Aug 9, 1979
- Skagerrak Fm
- at total depth · Triassic
- 72.9
- m of core in 6 cores
- 169
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED AUG 9, 1981
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- PENTAGONE 84 · Semisub steel
- Drilling days
- 217
- Kelly bushing elevation
- 24 m
- Maximum inclination
- 4.5°
- Drilling permit
- 209-L
- Licensing round
- 2-A
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 58.87535° N, 1.77951° E
- Hydrocarbons in
- Intra Draupne Fm Ss · Late Jurassic
- Hydrocarbons in
- Hugin Fm · Middle Jurassic
- Hydrocarbons in
- Sleipner Fm · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 15/3-3 was drilled west of the Gudrun Terrace on the east flank of the North Sea Central Graben, about 4.5 km north-east of the 15/3-1 S discovery. The main objective of the 15/3-3 well was to appraise the complete Jurassic series up-dip of well 15/3-1 S drilled on the same structure in 1975.
Well 15/3-3 is type well for the Grid Formation.
Operations and results
Appraisal well 15/3-3 was spudded with the semi-submersible installation Pentagone 84 on 5 January 1979 and drilled to TD at 5115 m in the Triassic Skagerrak Formation.
Several water bearing sands with high porosity were encountered in the Tertiary section including the Grid, Heimdal and Ty formations. The Cretaceous had no reservoir sections and was drilled without gas shows. The Late Jurassic Draupne Formation was encountered at 4017 m. The Draupne Formation was 208 m thick and consisted of shales with only a few < 1 m sandstone beds. The Heather Formation was penetrated from 4225 to 4522 m and contained a main Intra Heather Formation sandstone from 4260 to 4369 m. This sandstone was gas and condensate bearing in the upper part down to a GOC at 4272 m. The Hugin Formation came in at 4522 m and then the Sleipner Formation at 4545 m. The Hugin Formation contained gas filled sandstone from 4522 to 4527 m. Several thinner sandstones with gas followed down to a main gas filled sandstone in the Sleipner Formation from 4588 to 4632 m. A second hydrocarbon filled Sleipner Formation sandy interval was penetrated from 4679 to 4693 m. The upper part down to 4687 m consisted of good sandstone, further down it was cemented.
The only oil shows in the well was rare pa
Around this wellbore
This wellbore on Sodir FactPages →
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.
Developers: this page as JSON is GET /v1/data/norway/wells/313, documented in the API reference.