31/2-1 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
- 31/2-1
- Borehole / source record ID
- 505
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- A/S Norske Shell
- Recorded spud date
- 1981-10-26
- Recorded completion date
- 1981-11-09
- Latitude / longitude (WGS84)
- 60.771486 / 3.552712
- Source-reported measurements
- 2434 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
- BORGNY DOLPHIN
Company roles reported by source
- Drilling operatorA/S Norske ShellOpen source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 2,434.00 m | RKB |
| wlbFinalVerticalDepth | 2,434.00 m | RKB |
| wlbWaterDepth | 324.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 65.00 °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 |
|---|---|---|---|
| 31/2-1 | 0.00 km | 2,433 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 H | 1.46 km | 5,348 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 AY1H | 1.46 km | 5,262 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 AY2H | 1.46 km | 5,206 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 AY3H | 1.46 km | 4,920 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 BY1H | 1.46 km | 6,963 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 BY2H | 1.46 km | 5,908 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-13 BY3H | 1.46 km | 7,487 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-11 H | 1.46 km | 2,057 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-11 AH | 1.46 km | 4,710 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-11 BY1H | 1.46 km | 4,967 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-L-11 BY2H | 1.46 km | 4,747 m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 2434
- True vertical depth (RKB)
- 2434
- Water depth
- 324
- Bottom-hole temperature
- 65
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 349 / 526 |
| GROUP | HORDALAND GP | 526 / 1,185 |
| GROUP | ROGALAND GP | 1,185 / 1,406 |
| FORMATION | BALDER FM | 1,185 / 1,251 |
| FORMATION | SELE FM | 1,251 / 1,323 |
| FORMATION | LISTA FM | 1,323 / 1,394 |
| FORMATION | VÅLE FM | 1,394 / 1,415 |
| GROUP | CROMER KNOLL GP | 1,406 / 1,415 |
| GROUP | VIKING GP | 1,415 / 1,882 |
| FORMATION | DRAUPNE FM | 1,415 / 1,441 |
| FORMATION | SOGNEFJORD FM | 1,441 / 1,533 |
| FORMATION | HEATHER FM | 1,533 / 1,596 |
| FORMATION | FENSFJORD FM | 1,596 / 1,743 |
| FORMATION | KROSSFJORD FM | 1,743 / 1,881 |
| FORMATION | HEATHER FM | 1,881 / 1,986 |
| GROUP | BRENT GP | 1,882 / 1,986 |
| GROUP | DUNLIN GP | 1,986 / 2,294 |
| FORMATION | DRAKE FM | 1,986 / 2,094 |
| FORMATION | COOK FM | 2,094 / 2,135 |
| FORMATION | AMUNDSEN FM | 2,135 / 2,177 |
| FORMATION | JOHANSEN FM | 2,177 / 2,274 |
| FORMATION | AMUNDSEN FM | 2,274 / 2,434 |
| GROUP | STATFJORD GP | 2,294 / 2,382 |
| GROUP | HEGRE GP | 2,382 / 2,434 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|
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 | 31/2-1 R | 31/2-1 |
|---|---|---|
| NORDLAND GP | 349 | 348 |
| HORDALAND GP | 526 | 525 |
| ROGALAND GP | 1185 | 1184 |
| CROMER KNOLL GP | 1406 | 1405 |
| VIKING GP | 1415 | 1414 |
| BRENT GP | 1882 | 1881 |
| DUNLIN GP | 1986 | 1985 |
| STATFJORD GP | 2293.5 | 2292.5 |
| HEGRE GP | 2382 | 2381 |
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 | 105.90 km | 50.00 mW/m2 | {"qualityScores":["U3.Mx.-------"]} |
| R24-P038356 | 115.16 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P038365 | 155.37 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.