21/19- 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
- 21/19- 4
- Borehole / source record ID
- 21/19- 4
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- ENQUEST HEATHER LIMITED
- Recorded spud date
- 1991-06-14
- Recorded completion date
- 1991-08-09
- Latitude / longitude (WGS84)
- 57.427457 / 0.785110
- Source-reported measurements
- 4176.06 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
- 1991-08-08
- Source completion status
- Abandoned Phase 3
- Source wellbore status
- EXTANT
- Source well-origin status
- Decommissioned
- Target field
- MALLARD
- Flow class
- Dry Hole
- Licence number
- P238
- Total-depth licence number
- P238
Company roles reported by source
- Responsible wellbore operatorENQUEST HEATHER LIMITED
- Licence operator at well originENQUEST HEATHER LIMITED
- Licence operator at total depthENQUEST HEATHER LIMITED
| Source-reported measurements | Value | Reference |
|---|---|---|
| TDMDDEPM | 4,176.06 m | Kelly Bushing |
| TDTVDSSM | 4,152.84 m | subsea |
| WATDEP_M | 92.96 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 |
|---|---|---|---|
| 21/19- 3 | 1.25 km | 4,058 m | NSTA — UK offshore wellbore top holes |
| 21/19- 5 | 1.57 km | 3,999 m | NSTA — UK offshore wellbore top holes |
| 21/19- 5Z | 1.57 km | 4,601 m | NSTA — UK offshore wellbore top holes |
| 21/19- 9 | 1.83 km | 4,299 m | NSTA — UK offshore wellbore top holes |
| 21/19- 7 | 1.89 km | 4,862 m | NSTA — UK offshore wellbore top holes |
| 21/19- 11 | 1.89 km | 4,420 m | NSTA — UK offshore wellbore top holes |
| 21/19- 8 | 1.89 km | 5,120 m | NSTA — UK offshore wellbore top holes |
| 21/19- 6 | 4.18 km | 3,880 m | NSTA — UK offshore wellbore top holes |
| 21/19- 6Y | 4.18 km | 3,938 m | NSTA — UK offshore wellbore top holes |
| 21/19- 6Z | 4.18 km | 2,682 m | NSTA — UK offshore wellbore top holes |
| 21/19- 10 | 4.21 km | 3,814 m | NSTA — UK offshore wellbore top holes |
| 21/19- 10Z | 4.21 km | 3,795 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-P003236 | 28.50 km | 53.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003229 | 30.33 km | 58.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003219 | 31.00 km | 51.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003225 | 33.22 km | 64.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003230 | 33.96 km | 44.00 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.