Well Data Manager / Well Summary / 3/21- 1

3/21- 1

Decommissioned

Well Header

Well No
3/21- 1
NSTA DEN No
1916
Well Name
--
Drill Seq No
1
Quadrant / Block
3 / 21
Surface Location
60.316181, 1.155737
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
P332
Licence Type
Production
Spud Date
1982-05-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

3/21- 1 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.080
Ground Elev (m)
--
Water Depth (m)
147.22
TD MD (m)
1933.350
TD TVDSS (m)
1909.270
TD Datum Depth (m)
24.079
TD Datum Type
Kelly Bushing
Spud Date
1982-05-10
TD Reached
1982-05-21
Completion Date
1982-05-27
Release Date
1986-05-27

Formation Tops (3)

Wellbore Formation Era MD (m) TVDSS (m) Provider
3/21- 1 Shetland Mesozoic 1437.000 1412.858 Ternan
Upper Jurassic Shelf Ssts Mesozoic 1846.000 1821.818 Ternan
Old Red Sandstone 1887.000 1862.814 Ternan

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
3/21- 1 0 0 0 12 3 0 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
3/21- 1 Cuttings 649.22 1932.43 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
3/21- 1 623.01123046875 1925.421630859375 13 0 2026-08-06 20:43:49.991802+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
3/21- 1
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density CDEN Energective CorrectedLOGS 630.6312 1923.8976 8487
bulk_density DENS UKCS JDWL 30th Round 630.936 1922.0688 8473
bulk_density DEN OGA Batch Unzipped 625.1448 1924.9644 8530
caliper CLD Energective CorrectedLOGS 630.0216 1924.5072 8495
caliper CALI UKCS JDWL 30th Round 627.888 1922.0688 8493
comp_sonic DT OGA Batch Unzipped 619.6584 1914.144 8490
comp_sonic DTC Energective CorrectedLOGS 630.936 1912.6200000000001 8411
deep_resistivity ILD Energective CorrectedLOGS 630.0216 1923.7452 8490
deep_resistivity RES_DEP OGA Batch Unzipped 623.6208 1924.8120000000001 8539
deep_resistivity RDEP UKCS JDWL 30th Round 630.936 1923.288 8481
density_correction DENC UKCS JDWL 30th Round 630.936 1922.0688 8473
density_correction CDRH Energective CorrectedLOGS 632.0028 1923.8976 8478
gamma_ray GR UKCS JDWL 30th Round 623.6208 1915.9728 8481
gamma_ray GRI Energective CorrectedLOGS 623.0112 1916.43 8488
med_resistivity ILM Energective CorrectedLOGS 630.0216 1924.5072 8495
med_resistivity RES_MED OGA Batch Unzipped 623.6208 1924.8120000000001 8539
med_resistivity RMED UKCS JDWL 30th Round 630.936 1923.8976 8485
neutron_por CNEU Energective CorrectedLOGS 624.5352 1923.4404000000002 8524
neutron_por NEU OGA Batch Unzipped 625.1448 1924.8120000000001 8529
neutron_por NEUT UKCS JDWL 30th Round 630.936 1922.0688 8473
pef PEF UKCS JDWL 30th Round 641.2992 1922.0688 8405
pef CPEF Energective CorrectedLOGS 630.0216 1924.8120000000001 8490
porosity PHIE OGA Batch Unzipped 1464.2592 1491.6912 181
shallow_resistivity RSHAL UKCS JDWL 30th Round 630.936 1923.8976 8485
shallow_resistivity RES_SLW OGA Batch Unzipped 623.6208 1924.6596000000002 8538
shallow_resistivity SFL Energective CorrectedLOGS 630.0216 1924.5072 8495
sp SP Energective CorrectedLOGS 630.0216 1925.4216000000001 8501
tvdss SS Energective CorrectedLOGS 623.0112 1925.7264 8549
water_sat SW OGA Batch Unzipped 1464.2592 1889.76 782

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
3/21- 1 36 1933.346 1909.156 G:\NSTA_BigFiles\NSTA_Packages\UKCS_JDWL_30thRound\NNS\OGA_Additional_Deviation_NNS.xlsx

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