205/21a- 4Z
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
- 205/21a- 4
- Borehole / source record ID
- 205/21a- 4Z
- Sector
- Oil and gas
- Derived purpose group
- Appraisal
- Operator in source snapshot
- PRAX UPSTREAM LIMITED
- Recorded spud date
- 2010-06-09
- Recorded completion date
- 2010-08-06
- Latitude / longitude (WGS84)
- 60.187613 / -3.858352
- Source-reported measurements
- 1579.47 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
- 2010-07-07
- Source completion status
- Abandoned Phase 3
- Source wellbore status
- EXTANT
- Source well-origin status
- Decommissioned
- Flow class
- Oil Well
- Source fluid types
- Oil
- Parent well
- 205/21a- 4
- Parent-well relationship
- Sidetrack
- Sidetrack type
- Geological
- Licence number
- P1368
Company roles reported by source
- Responsible wellbore operatorPRAX UPSTREAM LIMITED
- Licence operator at well originPRAX UPSTREAM LIMITED
- Licence operator at total depthPRAX UPSTREAM LIMITED
| Source-reported measurements | Value | Reference |
|---|---|---|
| TDMDDEPM | 1,579.47 m | Kelly Bushing |
| TDTVDSSM | 1,508.76 m | subsea |
| WATDEP_M | 156.67 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 |
|---|---|---|---|
| 205/21a- 4 | 0.00 km | 2,021 m | NSTA — UK offshore wellbore top holes |
| 205/21- 1A | 0.98 km | 1,343 m | NSTA — UK offshore wellbore top holes |
| 205/21- 1 | 0.98 km | Not reported / not verified m | NSTA — UK offshore wellbore top holes |
| 205/21a-G | 1.34 km | 1,820 m | NSTA — UK offshore wellbore top holes |
| 205/21a- 7Z | 1.34 km | 2,625 m | NSTA — UK offshore wellbore top holes |
| 205/21a- 6 | 1.35 km | 2,745 m | NSTA — UK offshore wellbore top holes |
| 205/21- 2 | 5.91 km | 3,623 m | NSTA — UK offshore wellbore top holes |
| 205/26b-A | 6.50 km | 2,547 m | NSTA — UK offshore wellbore top holes |
| C | 7.09 km | 2,437 m | NSTA — UK offshore wellbore top holes |
| C | 7.09 km | 3,047 m | NSTA — UK offshore wellbore top holes |
| 205/26b_B | 8.38 km | 2,857 m | NSTA — UK offshore wellbore top holes |
| 205/27- 2 | 8.54 km | 2,648 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-P004061 | 210.93 km | 45.00 mW/m2 | {"qualityScores":["Ux.Mx.-------"]} |
| R24-P004063 | 211.13 km | 60.00 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.