14/25a- 4

Decommissioned

Well Header

Well No
14/25a- 4
NSTA DEN No
5412
Well Name
--
Drill Seq No
4
Quadrant / Block
14 / 25 a
Surface Location
58.331150, -0.016978
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Licence No
P257
Licence Type
Production
Spud Date
1994-12-16
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

14/25a- 4 Original
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
21.031
Ground Elev (m)
--
Water Depth (m)
136.55
TD MD (m)
4688.129
TD TVDSS (m)
--
TD Datum Depth (m)
21.031
TD Datum Type
Kelly Bushing
Spud Date
1994-12-16
TD Reached
1995-03-07
Completion Date
1995-03-07
Release Date
1999-03-07

Formation Tops (9)

Wellbore Formation Era MD (m) TVDSS (m) Provider
14/25a- 4 Chalk Mesozoic 2380.000 2265.912 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2406.000 2288.078 Lloyds Register
Cromer Knoll Mesozoic 3066.000 2857.088 Lloyds Register
Valhall Mesozoic 3066.000 2857.088 Lloyds Register
Scapa Sandstone Mesozoic 3408.000 3156.347 Lloyds Register
Humber Mesozoic 4167.000 3807.880 Lloyds Register
Kimmeridge Clay 4167.000 3807.880 Lloyds Register
Claymore Sandstone Mesozoic 4167.000 3807.880 Lloyds Register
Piper Mesozoic 4437.000 4047.315 Lloyds Register

Lithology Intervals

No lithology intervals ingested for this well.

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
14/25a- 4 3 4 2 22 9 3 0 1 0 View

Hydrocarbon Occurrence (6)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
14/25a- 4 Oil shows OS SCAP 3408.2736 -- 149 m thick
14/25a- 4 Gas shows GS Kimmeridge Clay Formation 3557.016 -- 50 m thick
14/25a- 4 Mixed shows OGS LVAA 3607.308 -- 559 m thick
14/25a- 4 Oil shows OS JKSU 4166.616 -- 177 m thick
14/25a- 4 Gas shows GS Kimmeridge Clay Formation 4343.400000000001 -- 94 m thick
14/25a- 4 Mixed shows OGS Piper Formation 4436.9736 -- 272 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
14/25a- 4 Cuttings 926.59 4709.16 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
14/25a- 4 116.58599853515625 4716.47509765625 9 0 2026-08-06 07:58:45.320345+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
14/25a- 4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 915.6192000000001 4695.5964 24737
caliper CALI CGG Digital Well Logs 915.6192000000001 4695.5964 24737
comp_sonic DTCO CGG Digital Well Logs 915.7716 4705.9596 24871
comp_sonic DTLF CGG Digital Well Logs 916.8384000000001 4705.9596 24833
deep_resistivity ILD CGG Digital Well Logs 916.2288000000001 4715.1036 24928
deep_resistivity IDPH CGG Digital Well Logs 916.2288000000001 4716.4752 24937
density_correction DRHO CGG Digital Well Logs 915.6192000000001 4695.5964 24737
gamma_ray SGR CGG Digital Well Logs 3170.5296000000003 4687.062 9929
gamma_ray CGR CGG Digital Well Logs 3170.5296000000003 4687.062 9929
gamma_ray GR CGG Digital Well Logs 116.58600000000001 4687.062 29966
med_resistivity ILM CGG Digital Well Logs 916.2288000000001 4716.4752 24937
med_resistivity IMPH CGG Digital Well Logs 916.2288000000001 4716.4752 24937
neutron_por NPHI CGG Digital Well Logs 915.3144000000001 4689.5004 24662
pef PEF CGG Digital Well Logs 915.6192000000001 4695.5964 24737
potassium POTA CGG Digital Well Logs 3170.5296000000003 4687.062 9929
shear_sonic DTSM CGG Digital Well Logs 3289.7064 4705.9596 9269
thorium THOR CGG Digital Well Logs 3170.5296000000003 4687.062 9929
uranium URAN CGG Digital Well Logs 3170.5296000000003 4687.062 9929

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
14/25a- 4 170 4709.160 4270.850 D:\BigSpatial\nsta_raw\CGG_Deviation\14-25a-4 22083j_CGG-Deviation.xlsx

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