Well Data Manager / Well Summary / 21/04- 2

21/04- 2

Decommissioned

Well Header

Well No
21/04- 2
NSTA DEN No
2566
Well Name
--
Drill Seq No
2
Quadrant / Block
21 / 4
Surface Location
57.880139, 0.759332
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
CHRYSAOR PRODUCTION (U.K.) LIMITED
Original Operator
--
Sub Area Operator
CHRYSAOR PRODUCTION (U.K.) LIMITED
Licence No
P347
Licence Type
Production
Spud Date
1984-12-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/04- 2 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
B
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
140.21
TD MD (m)
4084.320
TD TVDSS (m)
4056.310
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1984-12-10
TD Reached
1985-02-18
Completion Date
1985-02-21
Release Date
1989-02-21

Formation Tops (24)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/04- 2 Horda Cenozoic 1792.000 1765.985 Lloyds Register
Stronsay Cenozoic 1792.000 1765.985 Lloyds Register
Balder Cenozoic 2220.000 2193.857 Lloyds Register
Moray Mesozoic 2220.000 2193.857 Lloyds Register
Balder Tuff Cenozoic 2230.000 2203.856 Lloyds Register
Sele Mesozoic 2256.000 2229.852 Lloyds Register
Forties Sandstone Mesozoic 2320.000 2293.841 Lloyds Register
Lista Mesozoic 2396.000 2369.835 Lloyds Register
Montrose Mesozoic 2396.000 2369.835 Lloyds Register
Balmoral Sandstone Cenozoic 2401.000 2374.835 Lloyds Register
Glamis Tuff 2456.000 2429.832 Lloyds Register
Andrew Sandstone Cenozoic 2513.000 2486.832 Lloyds Register
Maureen Sandstone Mesozoic 2630.000 2603.830 Lloyds Register
Maureen Mesozoic 2630.000 2603.830 Lloyds Register
Chalk Mesozoic 2799.000 2772.811 Lloyds Register
Ekofisk Mesozoic 2799.000 2772.811 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2882.000 2855.805 Lloyds Register
Cromer Knoll Mesozoic 3572.000 3545.355 Lloyds Register
Valhall Mesozoic 3572.000 3545.355 Lloyds Register
Humber Mesozoic 3943.000 3915.454 Lloyds Register
Kimmeridge Clay 3943.000 3915.454 Lloyds Register
Fladen Mesozoic 4015.000 3987.234 Lloyds Register
Rattray Volcanics Mesozoic 4015.000 3987.234 Lloyds Register
Pentland Mesozoic 4015.000 3987.234 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
21/04- 2 7 10 7 36 24 2 0 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/04- 2 Cuttings 243.84 4084.32 -- -- including S.T. .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/04- 2 131.36880493164062 4093.464111328125 9 0 2026-08-06 10:09:37.022729+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/04- 2
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 2284.476 4093.1592 6237
caliper CALI CGG Digital Well Logs 619.9632 4093.4640000000004 22793
comp_sonic DT CGG Digital Well Logs 619.9632 4081.7292 22637
deep_resistivity ILD CGG Digital Well Logs 619.9632 4091.0256000000004 22777
density_correction DRHO CGG Digital Well Logs 3800.2464 4093.4640000000004 1925
gamma_ray SGR CGG Digital Well Logs 3787.1400000000003 4071.2136 1865
gamma_ray CGR CGG Digital Well Logs 3787.1400000000003 4071.2136 1865
gamma_ray GR CGG Digital Well Logs 131.3688 4084.1676 25938
gamma_ray GRD CGG Digital Well Logs 2284.476 4071.366 6035
med_resistivity ILM CGG Digital Well Logs 620.1156000000001 4092.2448000000004 22784
neutron_por NPHI CGG Digital Well Logs 2284.6284 4087.0632 6153
pef PEF CGG Digital Well Logs 2284.476 4093.1592 6247
potassium POTA CGG Digital Well Logs 3787.1400000000003 4070.9088 1863
thorium THOR CGG Digital Well Logs 3787.1400000000003 4071.0612 1864
uranium URAN CGG Digital Well Logs 3787.1400000000003 4070.9088 1863

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/04- 2 136 4084.320 4056.316 D:\BigSpatial\nsta_raw\CGG_Deviation\21-4-2 5247l-CGG_Deviation.xlsx

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