Well Data Manager / Well Summary / 211/12a-M4

211/12a-M4

Present

Well Header

Well No
211/12a-M4
NSTA DEN No
2531
Well Name
--
Drill Seq No
4
Quadrant / Block
211 / 12 a
Surface Location
61.619625, 1.305427
Source Datum
ED50
Subsea Well
Unknown
Platform
M
Slot No
C-2
Operator
ENQUEST HEATHER LIMITED
Original Operator
--
Sub Area Operator
ENQUEST HEATHER LIMITED
Licence No
P193
Licence Type
Production
Spud Date
1984-11-21
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

211/12a-M4 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
CB
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
57.000
Ground Elev (m)
--
Water Depth (m)
185.00
TD MD (m)
4614.000
TD TVDSS (m)
363.000
TD Datum Depth (m)
56.967
TD Datum Type
Kelly Bushing
Spud Date
1984-11-21
TD Reached
1984-12-04
Completion Date
1984-12-18
Release Date
1988-12-18

Formation Tops (5)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/12a-M4 Shetland D 4175.000 2743.741 BGS LithoStrat Upper
Cromer Knoll Mesozoic 4308.000 2837.780 BGS LithoStrat Upper
Upper Kimmeridge Clay Mesozoic 4317.000 2844.535 BGS LithoStrat Upper
Magnus Sandstone Mesozoic 4319.000 2846.036 BGS LithoStrat Upper
Lower Kimmeridge Clay Mesozoic 4544.000 3026.260 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
211/12a-M4 0 0 0 5 5 0 0 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
211/12a-M4 Oil O Magnus Sandstone Member 4318.711200000001 -- 225 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/12a-M4 Cuttings 399.99 4605.95 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/12a-M4 4174.845703125 4627.6259765625 11 0 2026-08-08 01:17:26.753656+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/12a-M4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density CDEN Energective CorrectedLOGS 4188.86621712 4623.81054408 2855
caliper CLD Energective CorrectedLOGS 4188.86621712 4627.62048312 2880
comp_sonic DT OGA Batch Unzipped 4176.52148 4604.46045 2809
comp_sonic DTC Energective CorrectedLOGS 4188.86621712 4604.60835744 2729
deep_resistivity ILD Energective CorrectedLOGS 4188.86621712 4610.24709648 2766
density_correction DENC OGA Batch Unzipped 4177.89308 4604.46045 2800
density_correction CDRH Energective CorrectedLOGS 4188.86621712 4623.81054408 2855
gamma_ray GRI Energective CorrectedLOGS 4174.845600000001 4621.98177456 2935
med_resistivity ILM Energective CorrectedLOGS 4188.86621712 4611.16149648 2772
neutron_por CNEU Energective CorrectedLOGS 4176.67436952 4627.62048312 2960
porosity PHIT OGA Batch Unzipped 4318.25341 4604.46045 1879
tvdss SS Energective CorrectedLOGS 4174.5408 4627.77288312 2975
vshale VSH OGA Batch Unzipped 4318.25341 4604.46045 1879
water_sat SWT OGA Batch Unzipped 4318.25341 4604.46045 1879

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/12a-M4 159 4606.000 3078.258 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_12a-M4\WELL_PATH\WDD_QC\211_12a-M4_wdd_WDD_FILE_1683610_DATACO_MAPPED.csv

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