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21/04a- 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
21/04a- 4
Borehole / source record ID
21/04a- 4
Sector
Oil and gas
Derived purpose group
Exploration
Operator in source snapshot
CHRYSAOR PRODUCTION (U.K.) LIMITED
Recorded spud date
1991-06-06
Recorded completion date
1991-07-22
Latitude / longitude (WGS84)
57.982505 / 0.753225
Source-reported measurements
2499.36 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
1991-07-11
Source completion status
Abandoned Phase 3
Source wellbore status
EXTANT
Source well-origin status
Decommissioned
Flow class
Oil Show
Source fluid types
Oil
Licence number
P347
Total-depth licence number
P347

Company roles reported by source

Source-reported measurements
Source-reported measurementsValueReference
TDMDDEPM2,499.36 mKelly Bushing
TDTVDSSM2,472.65 msubsea
WATDEP_M147.83 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
P1.06 km4,177 mNSTA — UK offshore wellbore top holes
15/29b- 132.22 km2,751 mNSTA — UK offshore wellbore top holes
15/29b-F22.68 km4,173 mNSTA — UK offshore wellbore top holes
15/29b-F2Z2.68 km4,476 mNSTA — UK offshore wellbore top holes
15/29b-F12.69 km4,602 mNSTA — UK offshore wellbore top holes
15/29b-F32.70 km3,673 mNSTA — UK offshore wellbore top holes
15/29b-F42.70 km3,659 mNSTA — UK offshore wellbore top holes
15/29b-F4Y2.70 km4,648 mNSTA — UK offshore wellbore top holes
15/29b-F4Z2.70 km3,485 mNSTA — UK offshore wellbore top holes
Q2.85 km4,422 mNSTA — UK offshore wellbore top holes
15/29b- 122.86 km2,164 mNSTA — UK offshore wellbore top holes
15/29- 14.62 km3,854 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-P00321424.24 km50.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00322826.07 km54.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00323028.75 km44.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00322030.92 km53.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
R24-P00321931.02 km51.00 mW/m2{"qualityScores":["Ux.Mx.-------"]}
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