21/10-A4

Present

Well Header

Well No
21/10-A4
NSTA DEN No
785
Well Name
--
Drill Seq No
4
Quadrant / Block
21 / 10
Surface Location
57.731389, 0.971238
Source Datum
ED50
Subsea Well
No
Platform
A
Slot No
5-3
Operator
APACHE NORTH SEA LIMITED
Original Operator
--
Sub Area Operator
APACHE NORTH SEA LIMITED
Licence No
P246
Licence Type
Production
Spud Date
1975-11-24
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/10-A4 Original
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)
44.200
Ground Elev (m)
--
Water Depth (m)
105.80
TD MD (m)
2810.000
TD TVDSS (m)
2324.900
TD Datum Depth (m)
44.200
TD Datum Type
Kelly Bushing
Spud Date
1975-11-24
TD Reached
1975-12-20
Completion Date
1975-12-31
Release Date
1979-12-31

Formation Tops (4)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/10-A4 Unknown 150.000 105.800 BGS LithoStrat Upper
Sele Mesozoic 2525.000 2480.800 BGS LithoStrat Upper
Forties Sandstone Member Mesozoic 2562.000 2517.800 BGS LithoStrat Upper
Forties Shale Member Mesozoic 2757.000 2712.800 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
21/10-A4 0 0 0 4 4 0 0 0 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/10-A4 Oil O Forties Sandstone Member 2561.5239600000004 -- 196 m thick

Rock Samples (0)

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

Wireline Log Inventory (Ingested Curves)

No wireline log curves ingested for this well.

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

No scanned LAS source files matched to this well.

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/10-A4 0 -- -- --

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