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21/23a- 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
21/23a- 4
Borehole / source record ID
21/23a- 4
Sector
Oil and gas
Derived purpose group
Exploration
Operator in source snapshot
EQUINOR UK LIMITED
Recorded spud date
1990-12-15
Recorded completion date
1991-01-22
Latitude / longitude (WGS84)
57.225218 / 0.561030
Source-reported measurements
2194.56 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
1991-01-13
Source completion status
Abandoned Phase 3
Source wellbore status
EXTANT
Source well-origin status
Decommissioned
Flow class
Dry Hole
Licence number
P21
Total-depth licence number
P21

Company roles reported by source

Source-reported measurements
Source-reported measurementsValueReference
TDMDDEPM2,194.56 mKelly Bushing
TDTVDSSM2,169.57 msubsea
WATDEP_M85.95 mNot 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.

Open source record ↗

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.

Nearby wells and heat flow
NameDistanceSource-reported measurementsSource catalogues
21/24- 63.59 km2,393 mNSTA — UK offshore wellbore top holes
21/23b- 34.03 km2,018 mNSTA — UK offshore wellbore top holes
21/24-C44.44 km3,688 mNSTA — UK offshore wellbore top holes
21/24-C4Z4.44 km3,450 mNSTA — UK offshore wellbore top holes
21/24-C24.47 km3,929 mNSTA — UK offshore wellbore top holes
21/24-C14.47 km1,515 mNSTA — UK offshore wellbore top holes
21/24-C1Z4.47 km3,028 mNSTA — UK offshore wellbore top holes
21/24- 74.51 km2,359 mNSTA — UK offshore wellbore top holes
21/24- 7Y4.51 km2,722 mNSTA — UK offshore wellbore top holes
21/24- 7Z4.51 km2,353 mNSTA — UK offshore wellbore top holes
21/23b- 76.18 km1,925 mNSTA — UK offshore wellbore top holes
21/23b- 7Y6.18 km2,065 mNSTA — 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.

Subsurface temperature and heat flow
NameDistanceSubsurface temperature and heat flowQuality flags
R24-P00323215.60 km49.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00323329.21 km64.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00321632.51 km102.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00323133.48 km62.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00323635.16 km53.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
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