NORWAY · WELLBORES · NPDID 9061
34/4-15 A
Exploration · Wildcat · Plugged · Oil · Neptune Energy Norge AS · PL 882
34/4-15 A is a wildcat exploration wellbore in the North Sea, drilled by Neptune Energy Norge AS, entered Jul 16, 2020, to 3,844 m in the Drake Fm.
Discovery 34/4-15 A (Sjøpølse) · On the map →
- 3,844
- m total depth · 3,600 m vertical
- 332.4
- m water depth
- Jul 16, 2020
- entered · completed Aug 12, 2020
- Drake Fm
- at total depth · Early Jurassic
- 118.4
- m of core in 3 cores
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 12, 2022
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- DEEPSEA YANTAI · Semisub steel
- Drilling days
- 28
- Kelly bushing elevation
- 27.3 m
- Maximum inclination
- 0°
- Drilling permit
- 1821-L
- Licensing round
- TFO2016
- Plugged and abandoned
- Aug 12, 2020
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.56273° N, 2.04376° E
- Hydrocarbons in
- Draupne Fm · Late Jurassic
- Hydrocarbons in
- Rannoch Fm · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
The 34/4-15 A Sjøpølse well is a geological side-track to well 34/4-15 S west of the Snorre field on Tampen Spur in the North Sea. The primary wellbore found oil in the Middle Jurassic Rannoch Formation (Dugong prospect) and good hydrocarbon indications in a thin and poor reservoir quality Intra Draupne Formation sandstone. The primary objective of well 34/4-15 A was to appraise the Rannoch Formation discovery in well 34/4-15 S. The secondary objective was to prove petroleum in the Late Jurassic Intra Draupne Formation sandstone (Sjøpølse prospect).
Operations and results
Wildcat well 34/4-15 A was kicked off at 2012 m in the main well on 16 July 2020. The well was drilled with the semi-submersible installation Deepsea Yantai to TD at 3844 m (3600 m TVD) m in the Early Jurassic Drake Formation. Operations proceeded without significant problems. The well was drilled with Versatec oil-based mud from kick-off to TD.
Top of the Intra Draupne sandstone reservoir was penetrated at 3563 m (3320.6 m TVD). The reservoir is oil-filled with an ODT at 3663 m (3419.3 m TVD). The lower part is a better reservoir than the upper, and fluid sampling proved two separate oils at 0.705 g/cc and 0.65 g/cc in differing pressure regimes.
The Rannoch Formation was encountered at 3704 m. Pressure points gave an oil gradient that indicated 80 m oil column in the Rannoch Formation. However, logs and flowing fluid during sampling concluded on an oil-water contact at 3721 m (3477.3 m TVD), which represent an oil column of 21 m.
Three cores were cut in succession from 3569 to 3687 m in the Intra Draupne sandstones. The recoveries were 98.14 %, 98.
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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