Well Data Manager / Well Summary / 211/26-A5

211/26-A5

Present

Well Header

Well No
211/26-A5
NSTA DEN No
1419
Well Name
--
Drill Seq No
5
Quadrant / Block
211 / 26
Surface Location
61.102266, 1.071027
Source Datum
ED50
Subsea Well
No
Platform
A
Slot No
A-29
Operator
TAQA BRATANI LIMITED
Original Operator
--
Sub Area Operator
TAQA BRATANI LIMITED
Licence No
P232
Licence Type
Production
Spud Date
1979-10-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

211/26-A5 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)
53.950
Ground Elev (m)
--
Water Depth (m)
152.10
TD MD (m)
4087.063
TD TVDSS (m)
3177.845
TD Datum Depth (m)
53.950
TD Datum Type
Kelly Bushing
Spud Date
1979-10-03
TD Reached
1980-01-13
Completion Date
1980-02-04
Release Date
1984-02-04

Formation Tops (13)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/26-A5 Unknown 205.000 151.048 BGS LithoStrat Upper
Alwyn Marl Formation 3487.000 2425.314 BGS LithoStrat Upper
Kimmeridge Clay 3542.000 2456.928 BGS LithoStrat Upper
Heather Mesozoic 3567.000 2471.543 BGS LithoStrat Upper
Upper Ness Member Mesozoic 3577.000 2477.479 BGS LithoStrat Upper
Mid Ness Shale 3583.000 2481.041 BGS LithoStrat Upper
Lower Ness Member Mesozoic 3589.000 2484.603 BGS LithoStrat Upper
Rannoch Mesozoic 3615.000 2499.832 BGS LithoStrat Upper
Broom Mesozoic 3629.000 2507.977 BGS LithoStrat Upper
Dunlin Mesozoic 3635.000 2511.444 BGS LithoStrat Upper
Dunlin A Member Pre-Cambrian 3676.000 2535.361 BGS LithoStrat Upper
Statfjord Mesozoic 3689.000 2543.049 BGS LithoStrat Upper
Cormorant Mesozoic 3692.000 2544.872 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
211/26-A5 0 0 0 13 13 0 0 0 0 View

Hydrocarbon Occurrence (5)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
211/26-A5 Oil O Ness Formation 3576.828 -- 6 m thick
211/26-A5 Oil O Ness Formation 3588.7152 -- 27 m thick
211/26-A5 Oil O Rannoch Formation 3615.2328 -- 13 m thick
211/26-A5 Oil O Broom Formation 3628.6440000000002 -- 6 m thick
211/26-A5 Oil O Cormorant Formation 3692.3472 -- 49 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
211/26-A5 3750.25927734375 4084.16748046875 11 0 2026-08-06 11:27:44.606976+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/26-A5
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density CDEN Energective CorrectedLOGS 3750.2592 4084.1676 2192
bulk_density DEN OGA Batch Unzipped 3750.2592 4084.1676 2192
caliper CALI OGA Batch Unzipped 3749.04 4084.0152000000003 2199
caliper CLD Energective CorrectedLOGS 3756.3552 4076.3952000000004 2101
comp_sonic DTC Energective CorrectedLOGS 3751.0212 4065.27 2063
comp_sonic DT OGA Batch Unzipped 3749.04 4071.8232000000003 2119
deep_resistivity LLD Energective CorrectedLOGS 3768.2424 4065.27 1950
deep_resistivity RES_DEP OGA Batch Unzipped 3764.28 4071.8232000000003 2019
density_correction DENC OGA Batch Unzipped 3749.04 4060.3932 2044
density_correction CDRH Energective CorrectedLOGS 3757.7268000000004 4060.0884 1985
gamma_ray GRI Energective CorrectedLOGS 3750.8688 4071.8232000000003 2107
gamma_ray GR OGA Batch Unzipped 3749.04 4071.8232000000003 2119
med_resistivity RES_MED OGA Batch Unzipped 3764.28 4071.8232000000003 2019
micro_resistivity RES_MIC OGA Batch Unzipped 3986.9364 4071.8232000000003 558
micro_resistivity MLL Energective CorrectedLOGS 3986.9364 4070.7564 551
neutron_por NEU OGA Batch Unzipped 3749.04 4084.0152000000003 2199
neutron_por CNEU Energective CorrectedLOGS 3750.4116000000004 4084.0152000000003 2190
shallow_resistivity LLS Energective CorrectedLOGS 3767.7852000000003 4068.0132000000003 1971
tvdss SS Energective CorrectedLOGS 3750.2592 4084.32 2193
vshale VSGR Energective CorrectedLOGS 3766.8708 4071.366 1999
vshale VSH Energective CorrectedLOGS 3766.8708 4071.366 1999

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/26-A5 297 4076.700 2804.687 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_26-A5\WELL_PATH\WDD_QC\211_26-A5_wdd_WDD_FILE_1674016_DATACO_MAPPED.csv

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