21/28a- 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
- 21/28a- 4
- Borehole / source record ID
- 21/28a- 4
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- NEO NEXT+ ENERGY (ZNI) LIMITED
- Recorded spud date
- 1987-06-12
- Recorded completion date
- 1987-06-25
- Latitude / longitude (WGS84)
- 57.130971 / 0.533255
- Source-reported measurements
- 1609.95 m MD · Kelly Bushing
- Status reported by source
- Decomissioned
- Source accessed
- 2026-10-02
- Source snapshot date
- Not reported / not verified
- Original coordinate reference system
- EPSG:4326 WGS84 service geometry; source TOPHOLEDTM attributes vary
- Total depth reached date
- 1987-06-21
- Source completion status
- Abandoned Phase 3
- Source wellbore status
- EXTANT
- Source well-origin status
- Decommissioned
- Flow class
- Oil Show
- Source fluid types
- Oil
- Licence number
- P77
- Total-depth licence number
- P77
Company roles reported by source
- Responsible wellbore operatorNEO NEXT+ ENERGY (ZNI) LIMITED
- Licence operator at well originNEO NEXT+ ENERGY (ZNI) LIMITED
- Licence operator at total depthNEO NEXT+ ENERGY (ZNI) LIMITED
| Source-reported measurements | Value | Reference |
|---|---|---|
| TDMDDEPM | 1,609.95 m | Kelly Bushing |
| TDTVDSSM | 1,584.04 m | subsea |
| WATDEP_M | 89.92 m | Not reported / not verified |
NSTA — UK offshore wellbore top holes ↗
Source accessed:
Reuse terms: unconfirmed
Contains information provided by the North Sea Transition Authority and/or other third parties.
ArcGIS item metadata does not specify a reuse licence; public access alone is not a licence.
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 |
|---|---|---|---|
| 21/28a- 9 | 1.90 km | 1,625 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 9Y | 1.90 km | 1,798 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 9Z | 1.90 km | 1,919 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 2 | 2.54 km | 1,875 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 3 | 2.85 km | 1,661 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 8 | 2.85 km | 5,216 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 8Z | 2.85 km | 5,029 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 10 | 2.87 km | 1,487 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 10Z | 2.87 km | 1,454 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 6 | 3.49 km | 1,585 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 5 | 4.04 km | 1,597 m | NSTA — UK offshore wellbore top holes |
| 21/28a- 11 | 4.19 km | 1,530 m | NSTA — UK offshore wellbore top holes |
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-P003232 | 8.04 km | 49.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003216 | 22.44 km | 102.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003233 | 26.94 km | 64.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003231 | 28.39 km | 62.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003236 | 39.33 km | 53.00 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.