18/11-1
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
- 18/11-1
- Borehole / source record ID
- 343
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- Elf Petroleum Norge AS
- Recorded spud date
- 1974-02-17
- Recorded completion date
- 1974-03-31
- Latitude / longitude (WGS84)
- 58.071991 / 4.531822
- Source-reported measurements
- 2086 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 DRILLER
Company roles reported by source
- Drilling operatorElf Petroleum Norge ASOpen source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 2,086.00 m | RKB |
| wlbWaterDepth | 116.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 50.00 °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 |
|---|---|---|---|
| 9/2-11 | 16.75 km | 2,861 m | Norwegian Offshore Directorate — Wellbores |
| 18/10-U-2 | 21.36 km | 130 m | Norwegian Offshore Directorate — Wellbores |
| 18/10-U-4 | 21.37 km | Not reported / not verified m | Norwegian Offshore Directorate — Wellbores |
| 18/10-U-1 | 21.42 km | 139 m | Norwegian Offshore Directorate — Wellbores |
| 18/10-U-3 | 21.43 km | 131 m | Norwegian Offshore Directorate — Wellbores |
| 9/2-12 | 22.04 km | 3,155 m | Norwegian Offshore Directorate — Wellbores |
| 9/2-U-7 | 22.04 km | 696 m | Norwegian Offshore Directorate — Wellbores |
| 9/2-2 | 22.92 km | 3,550 m | Norwegian Offshore Directorate — Wellbores |
| 18/10-1 | 24.50 km | 2,800 m | Norwegian Offshore Directorate — Wellbores |
| 9/2-1 | 26.67 km | 3,756 m | Norwegian Offshore Directorate — Wellbores |
| 9/2-U-6 | 28.18 km | Not reported / not verified m | Norwegian Offshore Directorate — Wellbores |
| 9/2-U-4 | 28.23 km | Not reported / not verified m | Norwegian Offshore Directorate — Wellbores |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 2086
- True vertical depth (RKB)
- —
- Water depth
- 116
- Bottom-hole temperature
- 50
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 141 / 373 |
| GROUP | HORDALAND GP | 373 / 463 |
| GROUP | ROGALAND GP | 463 / 498 |
| FORMATION | BALDER FM | 463 / 486 |
| FORMATION | SELE FM | 486 / 492 |
| FORMATION | LISTA FM | 492 / 496 |
| FORMATION | VÅLE FM | 496 / 498 |
| GROUP | SHETLAND GP | 498 / 985 |
| FORMATION | EKOFISK FM | 498 / 572 |
| FORMATION | TOR FM | 572 / 860 |
| FORMATION | HOD FM | 860 / 985 |
| GROUP | CROMER KNOLL GP | 985 / 1,609 |
| FORMATION | RØDBY FM | 985 / 1,135 |
| FORMATION | SOLA FM | 1,135 / 1,325 |
| FORMATION | ÅSGARD FM | 1,325 / 1,609 |
| GROUP | BOKNFJORD GP | 1,609 / 1,878 |
| FORMATION | FLEKKEFJORD FM | 1,609 / 1,650 |
| FORMATION | SAUDA FM | 1,650 / 1,747 |
| FORMATION | TAU FM | 1,747 / 1,800 |
| FORMATION | EGERSUND FM | 1,800 / 1,878 |
| GROUP | VESTLAND GP | 1,878 / 2,060 |
| FORMATION | SANDNES FM | 1,878 / 1,964 |
| FORMATION | BRYNE FM | 1,964 / 2,086 |
| GROUP | BASEMENT | 2,060 / 2,086 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|---|---|
| 823 | 1.23 | observation-date-unreported |
| 1503 | 1.28 | observation-date-unreported |
| 1815 | 1.3 | observation-date-unreported |
| 2082 | 1.32 | observation-date-unreported |
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 | 18/11-1 | 9/2-11 | 9/2-12 | 9/2-2 | 18/10-1 |
|---|---|---|---|---|---|
| NORDLAND GP | 141 | 127 | 133 | 121 | 121 |
| HORDALAND GP | 373 | 453 | 462 | 406 | 369 |
| ROGALAND GP | 463 | 620 | 626 | 747 | 709 |
| SHETLAND GP | 498 | 671 | 677 | 803 | 744 |
| CROMER KNOLL GP | 985 | 1159 | 1319 | 1445 | 1326 |
| BOKNFJORD GP | 1609 | 2101 | 2530 | 2381 | 1991 |
| VESTLAND GP | 1878 | 2629 | 2991 | 3123 | 2405 |
| BASEMENT | 2060 | — | — | — | — |
| NO GROUP DEFINED | — | — | — | 3475 | 2506 |
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-P031366 | 107.96 km | 66.50 mW/m2 | {"qualityScores":["U1.M3.SXXP-X-"]} |
| R24-P065076 | 109.02 km | 21.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P065077 | 109.02 km | 20.00 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.