31/5-4 AR2
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
- 31/5-4
- Borehole / source record ID
- 5335
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- Statoil ASA (old)
- Recorded spud date
- 2003-08-24
- Recorded completion date
- 2003-09-05
- Latitude / longitude (WGS84)
- 60.720660 / 3.560268
- Source-reported measurements
- 2610 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
- BIDEFORD DOLPHIN
Company roles reported by source
- Drilling operatorStatoil ASA (old)Open source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 2,610.00 m | RKB |
| wlbFinalVerticalDepth | 1,586.00 m | RKB |
| wlbWaterDepth | 316.00 m | 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 |
|---|---|---|---|
| 31/5-4 S | 0.00 km | 1,909 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-4 A | 0.00 km | 2,603 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-4 AR | 0.00 km | 2,603 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-1 | 0.87 km | 860 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-2 | 0.93 km | 2,500 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-2 R | 0.93 km | 2,500 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-23 H | 1.18 km | 2,040 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-23 AH | 1.18 km | 4,798 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-23 BY1H | 1.18 km | 5,594 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-23 BY2H | 1.18 km | 5,372 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-23 BY3H | 1.18 km | 6,723 m | Norwegian Offshore Directorate — Wellbores |
| 31/5-I-22 H | 1.18 km | 2,002 m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 2610
- True vertical depth (RKB)
- 1586
- Water depth
- 316
- Bottom-hole temperature
- —
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 347 / 661 |
| GROUP | HORDALAND GP | 661 / 1,212 |
| GROUP | ROGALAND GP | 1,212 / 1,456 |
| FORMATION | BALDER FM | 1,212 / 1,299 |
| FORMATION | SELE FM | 1,299 / 1,400 |
| FORMATION | LISTA FM | 1,400 / 1,456 |
| GROUP | SHETLAND GP | 1,456 / 1,477 |
| FORMATION | HARDRÅDE FM | 1,456 / 1,468 |
| FORMATION | UNDIFFERENTIATED | 1,468 / 1,477 |
| GROUP | CROMER KNOLL GP | 1,477 / 1,522 |
| FORMATION | RØDBY FM | 1,477 / 1,514 |
| FORMATION | ÅSGARD FM | 1,514 / 1,522 |
| GROUP | VIKING GP | 1,522 / 2,610 |
| FORMATION | DRAUPNE FM | 1,522 / 1,628 |
| FORMATION | SOGNEFJORD FM | 1,628 / 2,610 |
| 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 | 31/5-4 AR2 | 31/5-4 S | 31/5-4 A | 31/5-4 AR | 31/5-1 |
|---|---|---|---|---|---|
| NORDLAND GP | 347 | 339.5 | 339.5 | 339.5 | 342 |
| HORDALAND GP | 661 | 654 | 654 | 654 | 670 |
| ROGALAND GP | 1212 | 1205 | 1205 | 1205 | — |
| SHETLAND GP | 1456 | 1449 | 1449 | 1449 | — |
| CROMER KNOLL GP | 1477 | 1470 | 1470 | 1470 | — |
| VIKING GP | 1522 | 1515 | 1515 | 1515 | — |
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 | 103.16 km | 50.00 mW/m2 | {"qualityScores":["U3.Mx.-------"]} |
| R24-P038356 | 112.27 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P038365 | 154.56 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.