31/4-12
Partial source coverage. Status and company roles are reported by each source, not independently verified as current. Unknown does not mean zero.
- Name / source ID
- 31/4-12
- Borehole / source record ID
- 5051
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- Norsk Hydro Produksjon AS
- Recorded spud date
- 2005-02-06
- Recorded completion date
- 2005-03-14
- Latitude / longitude (WGS84)
- 60.595430 / 3.162735
- Source-reported measurements
- 2226 m MD · RKB
- Status reported by source
- P&A
- Source accessed
- 2026-10-02
- Source snapshot date
- Not reported / not verified
- Original coordinate reference system
- ED50 / service geometry EPSG:4326
- Drilling facility reported by source
- DEEPSEA TRYM
Company roles reported by source
- Drilling operatorNorsk Hydro Produksjon ASOpen source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 2,226.00 m | RKB |
| wlbFinalVerticalDepth | 2,226.00 m | RKB |
| wlbWaterDepth | 210.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 92.00 °C | Not reported / not verified |
Norwegian Offshore Directorate — Wellbores ↗
Source accessed:
Reuse terms: review-source-terms
Source terms and attribution ↗Norwegian Offshore Directorate (NOD/SODIR), NLOD 2.0. Normalized by Wellficent.
Nearby wells and heat flow
These tools are descriptive: not forecasts, reserve estimates or investment advice. Source coverage is partial; unknown does not mean zero.
| Name | Distance | Source-reported measurements | Source catalogues |
|---|---|---|---|
| 31/4-12 A | 0.00 km | Not reported / not verified m | Norwegian Offshore Directorate — Wellbores |
| 31/4-10 | 3.47 km | 2,350 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-11 | 3.91 km | 3,271 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-3 | 3.99 km | 4,981 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-5 | 7.19 km | 2,930 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-9 | 7.98 km | 2,480 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-4 | 8.35 km | 3,150 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-7 | 8.53 km | 2,505 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-1 | 8.55 km | 1,000 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-2 | 8.62 km | 2,900 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-U-6 | 8.67 km | 76 m | Norwegian Offshore Directorate — Wellbores |
| 31/4-U-9 | 8.67 km | 26 m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 2226
- True vertical depth (RKB)
- 2226
- Water depth
- 210
- Bottom-hole temperature
- 92
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 235 / 895 |
| FORMATION | UTSIRA FM | 767 / 1,719 |
| GROUP | HORDALAND GP | 895 / 1,719 |
| GROUP | ROGALAND GP | 1,719 / 1,977 |
| FORMATION | BALDER FM | 1,719 / 1,775 |
| FORMATION | SELE FM | 1,775 / 1,821 |
| FORMATION | LISTA FM | 1,821 / 1,904 |
| FORMATION | VÅLE FM | 1,904 / 1,977 |
| GROUP | SHETLAND GP | 1,977 / 1,995 |
| FORMATION | JORSALFARE FM | 1,977 / 1,995 |
| GROUP | CROMER KNOLL GP | 1,995 / 2,043 |
| FORMATION | RØDBY FM | 1,995 / 2,025 |
| FORMATION | ÅSGARD FM | 2,025 / 2,043 |
| GROUP | VIKING GP | 2,043 / 2,226 |
| FORMATION | DRAUPNE FM | 2,043 / 2,089 |
| FORMATION | SOGNEFJORD FM | 2,089 / 2,125 |
| FORMATION | HEATHER FM | 2,125 / 2,172 |
| FORMATION | FENSFJORD FM | 2,172 / 2,226 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|---|---|
| 310 | 1.5 | observation-date-unreported, zero-meaning-unresolved |
| 500 | 1.54 | observation-date-unreported, zero-meaning-unresolved |
| 1184 | 1.39 | observation-date-unreported, zero-meaning-unresolved |
| 1670 | 1.5 | observation-date-unreported, zero-meaning-unresolved |
| 2052 | 1.2 | observation-date-unreported, zero-meaning-unresolved |
| 2226 | 1.16 | observation-date-unreported, zero-meaning-unresolved |
Group tops in offset wells
Group tops below each borehole's own RKB. Not TVD below sea level; deviation and kelly-bushing elevations affect apparent depths.
| Group | 31/4-12 | 31/4-10 | 31/4-11 | 31/4-3 | 31/4-5 |
|---|---|---|---|---|---|
| NORDLAND GP | 235 | 256 | 209 | 195 | 168 |
| HORDALAND GP | 895 | 836 | 802 | 906 | 911 |
| ROGALAND GP | 1718.5 | 1681 | 1725 | 1723 | 1772 |
| SHETLAND GP | 1977 | 1944 | 2019 | 1965 | 2011 |
| CROMER KNOLL GP | 1995 | 1990.5 | 2098 | — | 2050 |
| VIKING GP | 2042.5 | 2004.5 | 2130 | 2010 | 2060 |
| BRENT GP | — | — | 2644 | 2327 | 2278 |
| DUNLIN GP | — | — | 2785 | 2411 | 2356 |
| STATFJORD GP | — | — | 3178 | 2702 | 2645 |
| HEGRE GP | — | — | — | 2879 | 2849 |
Subsurface temperature and heat flow
Compare bottom-hole temperatures with depth and see measured heat flow near wells: context for geothermal reuse.
| Name | Distance | Subsurface temperature and heat flow | Quality flags |
|---|---|---|---|
| R24-P055259 | 119.47 km | 50.00 mW/m2 | {"qualityScores":["U3.Mx.-------"]} |
| R24-P038356 | 127.81 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P038365 | 176.13 km | 57.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
IHFC · Global Heat Flow Database, Release 2024 (v. 2026.03) ↗
Source accessed:
Reuse terms: CC-BY-4.0
Source terms and attribution ↗Global Heat Flow Data Assessment Group et al. (2024): The Global Heat Flow Database: Release 2024. V. 2026.03. GFZ Data Services. https://doi.org/10.5880/fidgeo.2024.014 Licensed under CC BY 4.0. Wellficent shows parent-level site values and selected metadata; values are not modified.