21/13b- 1Z
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
- 21/13b- 1A
- Borehole / source record ID
- 21/13b- 1Z
- Sector
- Oil and gas
- Derived purpose group
- Exploration
- Operator in source snapshot
- SHELL U.K. LIMITED
- Recorded spud date
- 1982-01-21
- Recorded completion date
- 1982-04-18
- Latitude / longitude (WGS84)
- 57.513007 / 0.539406
- Source-reported measurements
- Not reported / not verified
- 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
- 1982-03-17
- Source completion status
- Abandoned Phase 3
- Source wellbore status
- EXTANT
- Source well-origin status
- Decommissioned
- Parent well
- 21/13b- 1A
- Parent-well relationship
- Sidetrack
- Licence number
- P349
Company roles reported by source
- Responsible wellbore operatorSHELL U.K. LIMITED
- Licence operator at well originSHELL U.K. LIMITED
- Licence operator at total depthSHELL U.K. LIMITED
| Source-reported measurements | Value | Reference |
|---|---|---|
| WATDEP_M | 88.09 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 |
|---|---|---|---|
| 21/13b- 1A | 0.00 km | 4,803 m | NSTA — UK offshore wellbore top holes |
| 21/18- 3 | 4.52 km | 3,325 m | NSTA — UK offshore wellbore top holes |
| 21/18- 4 | 4.66 km | 3,444 m | NSTA — UK offshore wellbore top holes |
| 21/18- 4Z | 4.66 km | 3,420 m | NSTA — UK offshore wellbore top holes |
| 21/18- 2 | 4.87 km | Not reported / not verified m | NSTA — UK offshore wellbore top holes |
| 21/18- 2A | 4.87 km | 3,255 m | NSTA — UK offshore wellbore top holes |
| 21/18- 2AJ | 4.87 km | 2,137 m | NSTA — UK offshore wellbore top holes |
| KA-16S1 | 5.32 km | 4,161 m | NSTA — UK offshore wellbore top holes |
| KA-16 | 5.32 km | 2,783 m | NSTA — UK offshore wellbore top holes |
| 21/18a-K2 | 5.33 km | 4,617 m | NSTA — UK offshore wellbore top holes |
| 21/18a-K3 | 5.33 km | 3,999 m | NSTA — UK offshore wellbore top holes |
| KA-14 | 5.33 km | 3,814 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 | 27.11 km | 51.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003230 | 30.77 km | 44.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003224 | 30.79 km | 63.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003229 | 34.60 km | 58.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P003220 | 35.47 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.