NORWAY · WELLBORES · NPDID 7414
7220/7-3 S
Exploration · Wildcat · P&A · Oil/gas · Statoil Petroleum AS · Johan Castberg · PL 532
7220/7-3 S is a wildcat exploration wellbore in the Barents Sea, drilled by Statoil Petroleum AS, entered Feb 28, 2014, to 2,097 m in the Fruholmen Fm.
Discovery 7220/7-3 S (Drivis) · On the map →
- 2,097
- m total depth · 2,059 m vertical
- 345
- m water depth
- Feb 28, 2014
- entered · completed May 5, 2014
- Fruholmen Fm
- at total depth · Late Triassic
- 140.6
- m of core in 2 cores
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED MAY 5, 2016
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- WEST HERCULES · Semisub steel
- Drilling days
- 66
- Kelly bushing elevation
- 31 m
- Maximum inclination
- 34.59999847°
- Drilling permit
- 1509-L
- Licensing round
- 20
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 72.40242° N, 20.13408° E
- Hydrocarbons in
- Stø Fm · Middle Jurassic
- Hydrocarbons in
- Nordmela Fm · Early Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 7220/7-3 S was drilled to test the Drivis prospect on the Bjørnøyrenna Fault Complex in the Barents Sea, about 15 kilometres southwest of the 7220/8-1 Johan Castberg discovery. The primary exploration target was to prove petroleum in reservoir rocks from the Middle and Early Jurassic Age (the Stø and Nordmela formations). Flat spots at these levels were believed to be gas-oil and oil-water contacts. The secondary exploration target was to prove petroleum in reservoir rocks from the Late Triassic Age (the Fruholmen formation).
Operations and results
Wildcat well 7220/7-3 S was spudded with the semi-submersible installation West Hercules on 28 February 2014 and drilled to TD at 2097 m (2059 m TVD) in the Late Triassic Fruholmen Formation. No shallow gas was observed even though a shallow gas warning Class 2 was given through the Tertiary Torsk Formation. TD of the 17 1/2" section was set shallower than planned due to stuck pipe. Otherwise, no significant problem was encountered in the operations. The well was drilled with seawater and sweeps down to 736 m and with KCl/GEM/Polymer mud from 736 m to TD.
Top Stø Formation was encountered at 1448 m and top Nordmela Formation at 1525 m. There was a 68-metre gross gas column in the Stø Formation and an 86-metre gross oil column in the Stø and Nordmela formations. The GOC is at 1516 m and the OWC is at 1604 m. The reservoir quality in the Stø formation is very good. The reservoir quality in the Nordmela Formation is variable, but about half of the oil zone was encountered in sandstone with very good reservoir quality. Oil shows of variable quality are described from the OWC and down to 1766 in the Tubåen Formation. The Fruholmen Formation has poor reservoir properties, and is
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.
Developers: this page as JSON is GET /v1/data/norway/wells/7414, documented in the API reference.