Well Data Manager / Well Summary / 211/21a-N21

211/21a-N21

Present

Well Header

Well No
211/21a-N21
NSTA DEN No
2928
Well Name
--
Drill Seq No
21
Quadrant / Block
211 / 21
Surface Location
61.239914, 1.147645
Source Datum
ED50
Subsea Well
Unknown
Platform
N
Slot No
39
Operator
TAQA BRATANI LIMITED
Original Operator
--
Sub Area Operator
TAQA BRATANI LIMITED
Licence No
P258
Licence Type
Production
Spud Date
1986-03-26
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

211/21a-N21 Original
Abandoned Phase 2 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
50.902
Ground Elev (m)
--
Water Depth (m)
160.94
TD MD (m)
5378.261
TD TVDSS (m)
2743.102
TD Datum Depth (m)
50.902
TD Datum Type
Kelly Bushing
Spud Date
1986-03-26
TD Reached
1986-05-01
Completion Date
1986-05-11
Release Date
1990-05-11

Formation Tops (12)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/21a-N21 Unknown 212.000 160.669 BGS LithoStrat Upper
Unknown 5014.000 2566.171 BGS LithoStrat Upper
Kimmeridge Clay 5027.000 2572.399 BGS LithoStrat Upper
Upper Heather 5093.000 2603.768 BGS LithoStrat Upper
Lower Ness Member Mesozoic 5151.000 2630.997 BGS LithoStrat Upper
Etive Mesozoic 5170.000 2640.092 BGS LithoStrat Upper
Rannoch Mesozoic 5218.000 2663.344 BGS LithoStrat Upper
Broom Mesozoic 5267.000 2687.834 BGS LithoStrat Upper
Drake Mesozoic 5274.000 2691.382 BGS LithoStrat Upper
Cook Mesozoic 5284.000 2696.535 BGS LithoStrat Upper
Burton Mesozoic 5298.000 2703.750 BGS LithoStrat Upper
Amundsen 5318.000 2714.221 BGS LithoStrat Upper

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
211/21a-N21 0 0 0 12 12 0 0 0 0 View

Hydrocarbon Occurrence (4)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
211/21a-N21 Oil O Ness Formation 5150.5104 -- 20 m thick
211/21a-N21 Oil O Etive Formation 5170.3224 -- 47 m thick
211/21a-N21 Oil O Rannoch Formation 5217.566400000001 -- 49 m thick
211/21a-N21 Oil O Broom Formation 5266.944 -- 7 m thick

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/21a-N21 16.611600875854492 5381.548828125 8 0 2026-08-06 11:18:50.137553+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/21a-N21
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bit_size BIT Energective CorrectedLOGS 16.6116 4825.8984 31558
bulk_density DEN OGA Batch Unzipped 5013.96 5351.2212 2214
caliper CALI OGA Batch Unzipped 4992.624000000001 5351.2212 2354
comp_sonic DT OGA Batch Unzipped 5014.874400000001 5362.4988 2282
deep_resistivity RES_DEP OGA Batch Unzipped 5014.5696 5368.899600000001 2326
density_correction DENC OGA Batch Unzipped 4986.8328 5381.5488000000005 2591
gamma_ray GR OGA Batch Unzipped 4992.624000000001 5353.6596 2370
gamma_ray GRI Energective CorrectedLOGS 16.6116 4822.698 31537
med_resistivity RES_MED OGA Batch Unzipped 5014.5696 5369.814 2332
neutron_por NEU OGA Batch Unzipped 5014.5696 5355.4884 2238
tvdss SS Energective CorrectedLOGS 16.4592 4826.2032 31561

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/21a-N21 525 5378.196 2746.257 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_21a-N21\WELL_PATH\WDD_QC\211_21-N21_wdd_WDD_FILE_1673891_DATACO_MAPPED.csv
211/21a-N21 525 5378.196 2746.257 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_21a-N21\WELL_PATH\WDD_QC\211_21-N21_wdd_WDD_FILE_1684403_DATACO_MAPPED.csv

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