31/2-4 R
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
- 31/2-4
- Borehole / source record ID
- 502
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- A/S Norske Shell
- Recorded spud date
- 1980-10-09
- Recorded completion date
- 1981-04-06
- Latitude / longitude (WGS84)
- 60.856047 / 3.510612
- Source-reported measurements
- 5035 m MD · RKB
- Status reported by source
- SUSPENDED
- 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
- BORGNY DOLPHIN
Company roles reported by source
- Drilling operatorA/S Norske ShellOpen source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 5,035.00 m | RKB |
| wlbFinalVerticalDepth | 5,035.00 m | RKB |
| wlbWaterDepth | 336.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 141.00 °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 |
|---|---|---|---|
| 31/2-4 | 0.00 km | 815 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-4 R2 | 0.00 km | 5,035 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-D-10 H | 1.39 km | 1,723 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-W-23 H | 1.97 km | 1,765 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-W-24 H | 1.97 km | 1,577 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-W-22 H | 1.97 km | 1,593 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-W-21 H | 1.97 km | 1,604 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-12 | 2.42 km | 1,615 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-P-23 Y1H | 2.43 km | 4,916 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-P-23 Y2H | 2.43 km | 5,140 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-P-23 Y3H | 2.43 km | 4,160 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-P-23 AY1H | 2.43 km | 6,756 m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 5035
- True vertical depth (RKB)
- 5035
- Water depth
- 336
- Bottom-hole temperature
- 141
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 361 / 724 |
| FORMATION | NO FORMAL NAME | 494 / 528 |
| FORMATION | NO FORMAL NAME | 528 / 1,203 |
| GROUP | HORDALAND GP | 724 / 1,203 |
| GROUP | ROGALAND GP | 1,203 / 1,365 |
| FORMATION | BALDER FM | 1,203 / 1,234 |
| FORMATION | SELE FM | 1,234 / 1,256 |
| FORMATION | LISTA FM | 1,256 / 1,357 |
| FORMATION | VÅLE FM | 1,357 / 1,365 |
| GROUP | VIKING GP | 1,365 / 1,784 |
| FORMATION | SOGNEFJORD FM | 1,365 / 1,460 |
| FORMATION | HEATHER FM | 1,460 / 1,520 |
| FORMATION | FENSFJORD FM | 1,520 / 1,625 |
| FORMATION | KROSSFJORD FM | 1,625 / 1,710 |
| FORMATION | HEATHER FM | 1,710 / 1,902 |
| GROUP | BRENT GP | 1,784 / 1,902 |
| GROUP | DUNLIN GP | 1,902 / 2,256 |
| FORMATION | DRAKE FM | 1,902 / 2,008 |
| FORMATION | COOK FM | 2,008 / 2,107 |
| FORMATION | AMUNDSEN FM | 2,107 / 2,126 |
| FORMATION | JOHANSEN FM | 2,126 / 2,241 |
| FORMATION | AMUNDSEN FM | 2,241 / 5,035 |
| GROUP | STATFJORD GP | 2,256 / 2,422 |
| GROUP | HEGRE GP | 2,422 / 5,035 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|---|---|
| 820 | 1.56 | observation-date-unreported, zero-meaning-unresolved |
| 1665 | 1.62 | observation-date-unreported, zero-meaning-unresolved |
| 2000 | 1.46 | observation-date-unreported, zero-meaning-unresolved |
| 2310 | 1.46 | observation-date-unreported, zero-meaning-unresolved |
| 3480 | 1.46 | observation-date-unreported, zero-meaning-unresolved |
| 3640 | 1.44 | 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 | 31/2-4 R | 31/2-4 | 31/2-4 R2 | 31/2-12 |
|---|---|---|---|---|
| NORDLAND GP | 361 | 361 | 361 | 359 |
| HORDALAND GP | 724 | 724 | 724 | 730 |
| ROGALAND GP | 1203 | — | 1203 | 1180.5 |
| VIKING GP | 1364.5 | — | 1364.5 | 1365 |
| BRENT GP | 1784 | — | 1784 | — |
| DUNLIN GP | 1901.5 | — | 1901.5 | — |
| STATFJORD GP | 2256 | — | 2256 | — |
| HEGRE GP | 2422 | — | 2422 | — |
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 | 112.34 km | 50.00 mW/m2 | {"qualityScores":["U3.Mx.-------"]} |
| R24-P038356 | 121.79 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P038365 | 158.74 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.