Well Data Manager / Well Summary / 211/21-N4

211/21-N4

Present

Well Header

Well No
211/21-N4
NSTA DEN No
1983
Well Name
--
Drill Seq No
4
Quadrant / Block
211 / 21
Surface Location
61.239969, 1.147846
Source Datum
ED50
Subsea Well
Unknown
Platform
N
Slot No
27
Operator
TAQA BRATANI LIMITED
Original Operator
--
Sub Area Operator
TAQA BRATANI LIMITED
Licence No
P258
Licence Type
Production
Spud Date
1982-08-21
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

211/21-N4 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)
4536.088
TD TVDSS (m)
2898.238
TD Datum Depth (m)
53.950
TD Datum Type
Kelly Bushing
Spud Date
1982-08-21
TD Reached
1982-09-30
Completion Date
1982-10-16
Release Date
1986-10-16

Formation Tops (18)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/21-N4 Unknown 142.000 91.094 BGS LithoStrat Upper
Shetland Mesozoic 3840.000 2486.331 BGS LithoStrat Upper
Kimmeridge Clay 4021.000 2583.487 BGS LithoStrat Upper
Heather Mesozoic 4093.000 2624.547 BGS LithoStrat Upper
Heather Mesozoic 4157.000 2661.604 BGS LithoStrat Upper
Heather Mesozoic 4169.000 2668.597 BGS LithoStrat Upper
Upper Ness Member Mesozoic 4187.000 2679.207 BGS LithoStrat Upper
Mid Ness Shale 4227.000 2703.162 BGS LithoStrat Upper
Lower Ness Member Mesozoic 4240.000 2711.045 BGS LithoStrat Upper
Etive Mesozoic 4271.000 2730.100 BGS LithoStrat Upper
Rannoch Mesozoic 4302.000 2749.427 BGS LithoStrat Upper
Broom Mesozoic 4331.000 2767.691 BGS LithoStrat Upper
Drake Mesozoic 4350.000 2779.738 BGS LithoStrat Upper
Cook Mesozoic 4359.000 2785.446 BGS LithoStrat Upper
Burton Mesozoic 4378.000 2797.608 BGS LithoStrat Upper
Amundsen 4409.000 2817.545 BGS LithoStrat Upper
Statfjord Mesozoic 4431.000 2831.708 BGS LithoStrat Upper
Cormorant Mesozoic 4438.000 2836.207 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
211/21-N4 0 0 0 18 18 0 13 0 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (13)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/21-N4 Core #1 4130.34 4158.02 -- -- jumbled .
211/21-N4 Core #2 4158.08 4166.92 -- -- jumbled .
211/21-N4 Core #3 4168.44 4184.72 -- -- jumbled .
211/21-N4 Core #4 4184.9 4202.83 -- -- jumbled .
211/21-N4 Core #5 4203.19 4206.94 -- -- jumbled .
211/21-N4 Core #6 4207.46 4224.83 -- -- jumbled .
211/21-N4 Core #7 4224.83 4243.03 -- -- .
211/21-N4 Core #8 4244.34 4256.23 -- -- jumbled .
211/21-N4 Core #9 4256.99 4275.31 -- -- .
211/21-N4 Core #10 4276.34 4297.86 -- -- .
211/21-N4 Core #11 4298.59 4325.45 -- -- .
211/21-N4 Core #12 4326.03 4353.0 -- -- jumbled .
211/21-N4 Core #13 4353.46 4374.79 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/21-N4 3852.672119140625 4531.15673828125 8 0 2026-08-06 11:14:57.781438+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/21-N4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 3852.9768000000004 4461.2052 3992
bulk_density CDEN Energective CorrectedLOGS 3852.9768000000004 4461.2052 3992
caliper CALI OGA Batch Unzipped 3852.672 4098.950400000001 1617
caliper CLD Energective CorrectedLOGS 3852.672 4093.7688000000003 1583
comp_sonic DTC Energective CorrectedLOGS 3855.1104 4526.1276 4404
comp_sonic DT OGA Batch Unzipped 3855.1104 4539.996 4495
deep_resistivity RES_DEP OGA Batch Unzipped 4073.652 4540.3008 3063
deep_resistivity ILD Energective CorrectedLOGS 4073.652 4527.804 2981
density_correction DENC OGA Batch Unzipped 4061.46 4463.4912 2639
density_correction CDRH Energective CorrectedLOGS 4074.2616000000003 4460.595600000001 2536
gamma_ray GR OGA Batch Unzipped 3855.1104 4540.3008 4497
gamma_ray GRI Energective CorrectedLOGS 3855.1104 4531.156800000001 4437
neutron_por CNEU Energective CorrectedLOGS 4062.6792 4460.443200000001 2611
neutron_por NEU OGA Batch Unzipped 4061.0028 4463.4912 2642
tvdss SS Energective CorrectedLOGS 3852.672 4531.4616000000005 4455
vshale VSH Energective CorrectedLOGS 4060.0884 4530.2424 3086
vshale VSGR Energective CorrectedLOGS 4060.0884 4530.2424 3086

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/21-N4 309 4536.034 2898.260 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_21-N4\WELL_PATH\WDD_QC\211_21-N4_wdd_WDD_FILE_1673945_DATACO_MAPPED.csv

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