Well Data Manager / Well Summary / 210/25a-A4

210/25a-A4

Present

Well Header

Well No
210/25a-A4
NSTA DEN No
4023
Well Name
--
Drill Seq No
4
Quadrant / Block
210 / 25 a
Surface Location
61.275753, 0.917382
Source Datum
ED50
Subsea Well
No
Platform
A
Slot No
3
Operator
TAQA BRATANI LIMITED
Original Operator
--
Sub Area Operator
TAQA BRATANI LIMITED
Licence No
P296
Licence Type
Production
Spud Date
1990-03-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

210/25a-A4 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
PJ
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
61.266
Ground Elev (m)
--
Water Depth (m)
167.64
TD MD (m)
3541.819
TD TVDSS (m)
2494.584
TD Datum Depth (m)
61.265
TD Datum Type
Kelly Bushing
Spud Date
1990-03-10
TD Reached
1990-04-21
Completion Date
1990-05-10
Release Date
1994-05-10

Formation Tops (8)

Wellbore Formation Era MD (m) TVDSS (m) Provider
210/25a-A4 Heather Mesozoic 3231.000 2298.520 BGS LithoStrat Upper
Upper Ness Member Mesozoic 3344.000 2370.844 BGS LithoStrat Upper
Mid Ness Shale 3370.000 2387.355 BGS LithoStrat Upper
Lower Ness Member Mesozoic 3382.000 2394.938 BGS LithoStrat Upper
Etive Mesozoic 3384.000 2396.195 BGS LithoStrat Upper
Rannoch Mesozoic 3425.000 2421.782 BGS LithoStrat Upper
Broom Mesozoic 3463.000 2445.398 BGS LithoStrat Upper
Dunlin Mesozoic 3471.000 2450.408 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
210/25a-A4 0 0 0 8 8 0 3 0 0 View

Hydrocarbon Occurrence (5)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
210/25a-A4 Oil O Ness Formation 3343.656 -- 27 m thick
210/25a-A4 Oil O Ness Formation 3381.7560000000003 -- 2 m thick
210/25a-A4 Oil O Etive Formation 3383.8896 -- 41 m thick
210/25a-A4 Oil O Rannoch Formation 3425.0376 -- 37 m thick
210/25a-A4 Oil O Broom Formation 3462.5280000000002 -- 9 m thick

Rock Samples (3)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
210/25a-A4 Core #1 3343.66 3364.08 -- -- in as Shell no. 210/25-TA-03
210/25a-A4 Core #2 3365.6 3378.25 -- -- --
210/25a-A4 Core #3 3378.71 3415.28 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
210/25a-A4 2369.667724609375 3566.159912109375 6 0 2026-08-06 10:34:14.614936+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
210/25a-A4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
caliper CALI OGA Batch Unzipped 3048.0 3566.1600000000003 3401
deep_resistivity RES_DEP OGA Batch Unzipped 3227.3748 3528.9744 1980
deep_resistivity ILD Energective CorrectedLOGS 3252.0636 3535.6800000000003 1862
gamma_ray GR OGA Batch Unzipped 3225.8508 3529.5840000000003 1994
gamma_ray GRI Energective CorrectedLOGS 3249.0156 3535.6800000000003 1882
gamma_ray GRLW Energective CorrectedLOGS 2369.6676 3340.1508000000003 6369
med_resistivity ILM Energective CorrectedLOGS 3257.0928000000004 3535.6800000000003 1829
med_resistivity RES_MED OGA Batch Unzipped 3227.3748 3528.9744 1980
shallow_resistivity SFL Energective CorrectedLOGS 3257.3976000000002 3534.7656 1821
sp SP Energective CorrectedLOGS 3256.9404 3535.6800000000003 1830
tvdss SS Energective CorrectedLOGS 2369.5152000000003 3535.9848 7655

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
210/25a-A4 403 3541.776 2494.756 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_210\210_25a-A4\WELL_PATH\WDD_QC\210_25a-A4_wdd_WDD_FILE_1673322_DATACO_MAPPED.csv

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