7/8-4
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
- 7/8-4
- Borehole / source record ID
- 448
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- Conoco Norway Inc.
- Recorded spud date
- 1984-12-11
- Recorded completion date
- 1985-02-20
- Latitude / longitude (WGS84)
- 57.257139 / 2.427947
- Source-reported measurements
- 4400 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
- NORTRYM
Company roles reported by source
- Drilling operatorConoco Norway Inc.Open source record ↗
| Source-reported measurements | Value | Reference |
|---|---|---|
| wlbTotalDepth | 4,400.00 m | RKB |
| wlbFinalVerticalDepth | 4,398.00 m | RKB |
| wlbWaterDepth | 82.00 m | Not reported / not verified |
| wlbBottomHoleTemperature | 160.00 °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 |
|---|---|---|---|
| 7/11-13 | 2.06 km | 3,800 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-U-1 | 4.78 km | 124 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-6 S | 4.80 km | 3,220 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-U-2 | 4.84 km | 124 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-U-3 | 4.84 km | 124 m | Norwegian Offshore Directorate — Wellbores |
| 7/11-9 | 6.13 km | 4,271 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-3 | 7.01 km | 4,320 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-1 | 7.68 km | 3,334 m | Norwegian Offshore Directorate — Wellbores |
| 7/11-8 | 7.75 km | 4,750 m | Norwegian Offshore Directorate — Wellbores |
| 7/8-5 S | 8.47 km | 4,168 m | Norwegian Offshore Directorate — Wellbores |
| 23/22b- 4 | 9.27 km | 4,320 m | NSTA — UK offshore wellbore top holes |
| 23/27- 4 | 13.08 km | 3,695 m | NSTA — UK offshore wellbore top holes |
Digital well log
SODIR formation tops, drilling-mud samples and well tests on one measured-depth section.
- Total depth
- 4400
- True vertical depth (RKB)
- 4398
- Water depth
- 82
- Bottom-hole temperature
- 160
| Group | Formation | Depth (m MD, RKB) |
|---|---|---|
| GROUP | NORDLAND GP | 107 / 1,450 |
| GROUP | HORDALAND GP | 1,450 / 2,955 |
| GROUP | ROGALAND GP | 2,955 / 3,125 |
| FORMATION | BALDER FM | 2,955 / 2,989 |
| FORMATION | SELE FM | 2,989 / 3,040 |
| FORMATION | LISTA FM | 3,040 / 3,099 |
| FORMATION | MAUREEN FM | 3,099 / 3,125 |
| GROUP | SHETLAND GP | 3,125 / 3,728 |
| FORMATION | EKOFISK FM | 3,125 / 3,187 |
| FORMATION | TOR FM | 3,187 / 3,529 |
| FORMATION | HOD FM | 3,529 / 3,629 |
| FORMATION | BLODØKS FM | 3,629 / 3,705 |
| FORMATION | HIDRA FM | 3,705 / 3,728 |
| GROUP | CROMER KNOLL GP | 3,728 / 3,817 |
| FORMATION | RØDBY FM | 3,728 / 3,817 |
| GROUP | TYNE GP | 3,817 / 3,826 |
| FORMATION | MANDAL FM | 3,817 / 3,826 |
| GROUP | HEGRE GP | 3,826 / 4,400 |
| FORMATION | SMITH BANK FM | 3,826 / 4,400 |
| Depth (m MD, RKB) | Mud density (g/cm³) | Quality flags |
|---|---|---|
| 175 | 1.07 | zero-meaning-unresolved |
| 205 | 1.07 | zero-meaning-unresolved |
| 619 | zero-meaning-unresolved | |
| 619 | 1.09 | |
| 619 | 1.13 | zero-meaning-unresolved |
| 830 | 1.19 | |
| 830 | 1.19 | |
| 1241 | 1.39 | |
| 1534 | 1.5 | |
| 1694 | 1.5 | |
| 1915 | 1.5 | |
| 1963 | 1.57 | |
| 1963 | 1.61 | |
| 1963 | 1.61 | |
| 1970 | 1.6 | |
| 2119 | 1.54 | |
| 2194 | 1.48 | |
| 2293 | 1.48 | |
| 2354 | 1.48 | |
| 2592 | 1.48 | |
| 2642 | 1.48 | |
| 2919 | 1.48 | |
| 2994 | 1.48 | |
| 3105 | 1.48 | |
| 3128 | 1.47 | |
| 3196 | 1.48 | |
| 3254 | 1.48 | |
| 3342 | 1.48 | |
| 3424 | 1.48 | |
| 3438 | 1.48 | |
| 3453 | 1.48 | |
| 3559 | 1.48 | |
| 3571 | 1.44 | |
| 3617 | 1.54 | |
| 3660 | 1.54 | |
| 3684 | 1.54 | |
| 3783 | 1.71 | |
| 3808 | 1.54 | |
| 3825.5 | 1.74 | |
| 3857 | 1.74 | |
| 3859 | 1.74 | |
| 3911 | 1.74 | |
| 3943 | 1.74 | |
| 4092 | 1.74 | |
| 4092 | 1.74 | |
| 4092 | 1.74 | |
| 4130 | 1.72 | |
| 4140 | 1.71 | |
| 4192 | 1.74 | |
| 4192 | 1.69 | |
| 4192 | 1.69 | |
| 4192 | 1.74 | |
| 4347 | 1.68 | |
| 4400 | 1.67 | |
| 4400 | 1.66 | |
| 4400 | 1.66 | |
| 4400 | 1.69 | |
| 4400 | 1.69 | |
| 4400 | 1.71 | |
| 4400 | 1.71 | |
| 4400 | 1.71 |
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 | 7/8-4 | 7/11-13 | 7/8-6 S | 7/11-9 | 7/8-3 |
|---|---|---|---|---|---|
| NORDLAND GP | 107 | 122 | 127 | 106 | 106 |
| HORDALAND GP | 1450 | 1434 | 1351 | 1451.5 | 1334 |
| ROGALAND GP | 2954.5 | 2922 | 2837 | 2965.5 | 2716.5 |
| SHETLAND GP | 3125 | 3076.5 | 3027 | 3162 | 2858 |
| CROMER KNOLL GP | 3728 | 3641 | — | 3899 | 3393 |
| TYNE GP | 3816.5 | 3680 | — | 4027 | 3638.5 |
| HEGRE GP | 3826 | 3697 | — | 4182.6 | — |
| VESTLAND GP | — | — | — | 4168.5 | 3723.5 |
| NO GROUP DEFINED | — | — | — | — | 3767 |
| ZECHSTEIN GP | — | — | — | — | 4237 |
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-P003215 | 36.04 km | 56.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003246 | 42.44 km | 68.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003234 | 62.74 km | 66.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003222 | 64.03 km | 56.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003235 | 65.13 km | 61.00 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.