21/15b- 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
- 21/15b- 4
- Borehole / source record ID
- 21/15b- 4
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- ENTERPRISE OIL LIMITED
- Recorded spud date
- 1984-09-08
- Recorded completion date
- 1984-09-20
- Latitude / longitude (WGS84)
- 57.627076 / 0.811325
- Source-reported measurements
- 3899.31 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
- 1984-09-17
- Source completion status
- Abandoned Phase 3
- Source wellbore status
- EXTANT
- Source well-origin status
- Decommissioned
- Flow class
- Oil and Gas Shows
- Source fluid types
- Gas, Oil
- Licence number
- P420
- Total-depth licence number
- P420
Company roles reported by source
- Responsible wellbore operatorENTERPRISE OIL LIMITED
- Licence operator at well originENTERPRISE OIL LIMITED
- Licence operator at total depthENTERPRISE OIL LIMITED
| Source-reported measurements | Value | Reference |
|---|---|---|
| TDMDDEPM | 3,899.31 m | Kelly Bushing |
| WATDEP_M | 118.87 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 |
|---|---|---|---|
| 21/15b- 4A | 0.04 km | 3,924 m | NSTA — UK offshore wellbore top holes |
| 21/15b- 5 | 4.23 km | 3,694 m | NSTA — UK offshore wellbore top holes |
| 21/14a- 4 | 5.32 km | 4,507 m | NSTA — UK offshore wellbore top holes |
| 21/15a- 2 | 5.96 km | 4,237 m | NSTA — UK offshore wellbore top holes |
| 21/10- 9 | 6.03 km | 3,387 m | NSTA — UK offshore wellbore top holes |
| 21/09- 5 | 6.71 km | 760 m | NSTA — UK offshore wellbore top holes |
| 21/09- 5A | 6.71 km | 2,276 m | NSTA — UK offshore wellbore top holes |
| 21/15a- 8 | 6.86 km | 3,642 m | NSTA — UK offshore wellbore top holes |
| 21/15a- 7 | 8.12 km | 3,744 m | NSTA — UK offshore wellbore top holes |
| 21/15a- 1 | 8.40 km | 4,921 m | NSTA — UK offshore wellbore top holes |
| 21/15a- 6 | 8.64 km | 4,447 m | NSTA — UK offshore wellbore top holes |
| 21/09- 1 | 9.07 km | 3,413 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-P003219 | 8.75 km | 51.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003230 | 11.82 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003229 | 14.74 km | 58.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003220 | 15.07 km | 53.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003218 | 15.48 km | 59.00 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.