21/03b- 3

Decommissioned

Well Header

Well No
21/03b- 3
NSTA DEN No
1672
Well Name
--
Drill Seq No
3
Quadrant / Block
21 / 3 b
Surface Location
57.952195, 0.509942
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
CALEDONIA NORTH SEA LIMITED
Original Operator
--
Sub Area Operator
CALEDONIA NORTH SEA LIMITED
Licence No
P346
Licence Type
Production
Spud Date
1981-04-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/03b- 3 Original
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
C
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.079
Ground Elev (m)
--
Water Depth (m)
116.74
TD MD (m)
4567.430
TD TVDSS (m)
0.000
TD Datum Depth (m)
24.079
TD Datum Type
Kelly Bushing
Spud Date
1981-04-10
TD Reached
1981-06-29
Completion Date
1981-07-04
Release Date
1985-07-04

Formation Tops (26)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/03b- 3 Balder Cenozoic 1792.000 1767.921 Lloyds Register
Moray Mesozoic 1792.000 1767.921 Lloyds Register
Balder Tuff Cenozoic 1849.000 1824.921 Lloyds Register
Sele Mesozoic 1870.000 1845.921 Lloyds Register
Forties Sandstone Mesozoic 1960.000 1935.921 Lloyds Register
Montrose Mesozoic 2054.000 2029.921 Lloyds Register
Lista Mesozoic 2054.000 2029.921 Lloyds Register
Balmoral Sandstone Cenozoic 2094.000 2069.921 Lloyds Register
Glamis Tuff 2185.000 2160.921 Lloyds Register
Andrew Sandstone Cenozoic 2211.000 2186.921 Lloyds Register
Maureen Mesozoic 2327.000 2302.921 Lloyds Register
Maureen Sandstone Mesozoic 2327.000 2302.921 Lloyds Register
Ekofisk Mesozoic 2421.000 2396.921 Lloyds Register
Chalk Mesozoic 2421.000 2396.921 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2469.000 2444.921 Lloyds Register
Cromer Knoll Mesozoic 2911.000 2886.921 Lloyds Register
Rodby Mesozoic 2911.000 2886.921 Lloyds Register
Sola 2916.000 2891.921 Lloyds Register
Valhall Mesozoic 2922.000 2897.921 Lloyds Register
Fladen Mesozoic 2940.000 2915.921 Lloyds Register
Pentland Mesozoic 2940.000 2915.921 Lloyds Register
Rattray Volcanics Mesozoic 2940.000 2915.921 Lloyds Register
Halibut Carbonate Palaeozoic 4410.000 4385.921 Lloyds Register
Zechstein Palaeozoic 4410.000 4385.921 Lloyds Register
Rotliegend 4433.000 4408.921 Lloyds Register
Auk 4433.000 4408.921 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
21/03b- 3 7 12 7 15 26 3 1 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (2)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/03b- 3 Cuttings 484.63 4559.81 -- -- .
21/03b- 3 Core #1 4282.44 4299.81 -- -- well re-boxed (originally curated Jan`82)

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/03b- 3 137.16000366210938 4567.123046875 10 0 2026-08-06 10:09:09.358267+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/03b- 3
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 2959.4556000000002 4567.1232 10550
caliper CALI CGG Digital Well Logs 2958.3888 4567.1232 10557
comp_sonic DT CGG Digital Well Logs 473.6592 4556.3028 26680
deep_resistivity ILD CGG Digital Well Logs 473.0496 4566.3612 26798
density_correction DRHO CGG Digital Well Logs 2958.0840000000003 4567.1232 10559
gamma_ray GR CGG Digital Well Logs 137.16 4562.856000000001 29041
gamma_ray GRD CGG Digital Well Logs 2951.0736 4561.332 10567
neutron_por NPHI CGG Digital Well Logs 2959.608 4560.417600000001 10505
pef PEF CGG Digital Well Logs 2959.4556000000002 4567.1232 10550
shallow_resistivity SFLU CGG Digital Well Logs 472.7448 4565.904 26812
sp SP CGG Digital Well Logs 472.5924 4567.1232 26821

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/03b- 3 0 -- -- --

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