NORWAY · WELLBORES · NPDID 8228
7435/12-1
Exploration · Wildcat · P&A · Gas · Statoil Petroleum AS · PL 859
7435/12-1 is a wildcat exploration wellbore in the Barents Sea, drilled by Statoil Petroleum AS, entered Aug 9, 2017, to 1,540 m in the Kobbe Fm.
Discovery 7435/12-1 (Korpfjell) · On the map →
- 1,540
- m total depth · 1,539 m vertical
- 253
- m water depth
- Aug 9, 2017
- entered · completed Sep 1, 2017
- Kobbe Fm
- at total depth · Middle Triassic
- 44.8
- m of core in 1 core
- 54
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED SEP 1, 2019
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- SONGA ENABLER · Semisub steel
- Drilling days
- 24
- Kelly bushing elevation
- 32 m
- Maximum inclination
- 3.0999999°
- Drilling permit
- 1667-L
- Licensing round
- 23
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 74.07173° N, 35.80863° E
- Hydrocarbons in
- Stø Fm · Middle Jurassic
- Hydrocarbons in
- Kobbe Fm · Middle Triassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 7435/12-1 was drilled to test the Korpfjell prospect on the Haapet Dome far east on the Bjarmeland Platform in the Barents Sea. The primary objective was to test the hydrocarbon potential, phase and source in the Realgrunnen Subgroup (Stø-Tubåen-Fruholmen formations). Secondary objective was to test the hydrocarbon potential in the Triassic Snadd and Kobbe formations.
Operations and results
The Korpfjell pilot well 7435/12-U-1 was spudded on 7 August 2017 and drilled as a vertical 9 7/8" hole. TD was set at 547 m in the Hekkingen Formation. The pilot hole confirmed the geological prognosis and proved no shallow hydrocarbons above the setting depth of the 10 3/4" surface casing in the main well.
Wildcat well 7435/12-1 was spudded with the semi-submersible installation Songa Enabler on 9 August 2017 and drilled to TD at 1540 m in the Middle Triassic Kobbe Formation. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis pills down to 306 m and with KCL Polymer/Gem water-based mud from 306 m to TD.
The Hekkingen Formation was drilled without riser and no samples were available for analysis. However, high gamma ray readings indicate source rock with elevated organic content. Coal samples from the Nordmela and Snadd formations show very high TOC concentrations >50 wt% and together with elevated HI of 230 – 340 mg HC/g TOC, they have potential for gas and possibly some oil.
Sandstones in the primary target, in the Realgrunnen Subgroup, was encountered at 576.5 m. The reservoir proved to be hydrocarbon bearing, with a 34 m gas column in sandstones of good to moderate reser
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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