31/1-1
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
- 31/1-1
- Borehole / source record ID
- 5765
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- Marathon Petroleum Norge AS
- Recorded spud date
- 2008-01-02
- Recorded completion date
- 2008-02-15
- Latitude / longitude (WGS84)
- 60.818624 / 3.313331
- Source-reported measurements
- 2920 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
- BREDFORD DOLPHIN
Company roles reported by source
- Drilling operatorMarathon Petroleum Norge ASOpen source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 2,920.00 m | RKB |
| wlbFinalVerticalDepth | 2,920.00 m | RKB |
| wlbWaterDepth | 341.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 103.00 °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 |
|---|---|---|---|
| 31/2-11 | 5.99 km | 1,744 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-24 | 6.42 km | 2,588 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-U-13 | 6.42 km | 860 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-24 A | 6.43 km | Not reported / not verified m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-4 H | 7.25 km | 4,000 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-4 AY1H | 7.25 km | 5,757 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-4 AY2H | 7.25 km | 6,039 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-4 AY3H | 7.25 km | 5,778 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-1 H | 7.27 km | 2,100 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-1 AH | 7.27 km | 3,919 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-1 BY1H | 7.27 km | 4,603 m | Norwegian Offshore Directorate — Wellbores |
| 31/2-E-1 BY2H | 7.27 km | 4,613 m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 2920
- True vertical depth (RKB)
- 2920
- Water depth
- 341
- Bottom-hole temperature
- 103
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 366 / 840 |
| FORMATION | UTSIRA FM | 822 / 1,670 |
| GROUP | HORDALAND GP | 840 / 1,670 |
| GROUP | ROGALAND GP | 1,670 / 1,993 |
| FORMATION | BALDER FM | 1,670 / 1,736 |
| FORMATION | SELE FM | 1,736 / 1,803 |
| FORMATION | LISTA FM | 1,803 / 1,993 |
| GROUP | SHETLAND GP | 1,993 / 2,040 |
| FORMATION | JORSALFARE FM | 1,993 / 2,051 |
| GROUP | CROMER KNOLL GP | 2,040 / 2,051 |
| GROUP | VIKING GP | 2,051 / 2,415 |
| FORMATION | DRAUPNE FM | 2,051 / 2,055 |
| FORMATION | SOGNEFJORD FM | 2,055 / 2,068 |
| FORMATION | HEATHER FM | 2,068 / 2,415 |
| GROUP | BRENT GP | 2,415 / 2,634 |
| FORMATION | TARBERT FM | 2,415 / 2,450 |
| FORMATION | NESS FM | 2,450 / 2,514 |
| FORMATION | ETIVE FM | 2,514 / 2,564 |
| FORMATION | RANNOCH FM | 2,564 / 2,634 |
| GROUP | DUNLIN GP | 2,634 / 2,882 |
| FORMATION | DRAKE FM | 2,634 / 2,691 |
| FORMATION | COOK FM | 2,691 / 2,767 |
| FORMATION | AMUNDSEN FM | 2,767 / 2,787 |
| FORMATION | JOHANSEN FM | 2,787 / 2,920 |
| GROUP | STATFJORD GP | 2,882 / 2,920 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|---|---|
| 1686 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 1845 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 2015 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 2020 | 1.3 | observation-date-unreported, zero-meaning-unresolved |
| 2023 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 2062 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 2272 | 1.25 | observation-date-unreported, zero-meaning-unresolved |
| 2586 | 1.25 | 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 | 31/1-1 | 31/2-11 | 31/2-24 |
|---|---|---|---|
| NORDLAND GP | 366 | 361 | 363 |
| HORDALAND GP | 840 | 788 | 816 |
| ROGALAND GP | 1669.5 | 1341.5 | 1552 |
| SHETLAND GP | 1993 | 1536.5 | 1846 |
| CROMER KNOLL GP | 2040 | 1550 | — |
| VIKING GP | 2051 | 1558 | 1882 |
| BRENT GP | 2414.5 | — | 2402 |
| DUNLIN GP | 2633.5 | — | 2538 |
| STATFJORD GP | 2881.5 | — | — |
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 | 119.88 km | 50.00 mW/m2 | {"qualityScores":["U3.Mx.-------"]} |
| R24-P038356 | 129.11 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P060200 | 165.24 km | 60.30 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.