21/01a- 11

Present

Well Header

Well No
21/01a- 11
NSTA DEN No
1243
Well Name
--
Drill Seq No
11
Quadrant / Block
21 / 1 a
Surface Location
57.902919, 0.030524
Source Datum
ED50
Subsea Well
Yes
Platform
--
Slot No
--
Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Licence No
P241
Licence Type
Production
Spud Date
1978-08-20
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/01a- 11 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)
24.994
Ground Elev (m)
--
Water Depth (m)
142.65
TD MD (m)
3509.162
TD TVDSS (m)
3148.656
TD Datum Depth (m)
24.900
TD Datum Type
Kelly Bushing
Spud Date
1978-08-20
TD Reached
1978-11-03
Completion Date
1979-11-24
Release Date
1983-11-24

Formation Tops (9)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/01a- 11 Chalk Mesozoic 2385.000 2360.006 Lloyds Register
Ekofisk Mesozoic 2385.000 2360.006 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2449.000 2424.006 Lloyds Register
Rodby Mesozoic 3013.000 2988.006 Lloyds Register
Cromer Knoll Mesozoic 3013.000 2988.006 Lloyds Register
Sola 3050.000 3025.006 Lloyds Register
Valhall Mesozoic 3084.000 3059.006 Lloyds Register
Old Red Sandstone 3176.000 3151.006 Lloyds Register
Old Red Palaeozoic 3176.000 3151.006 Lloyds Register

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
21/01a- 11 3 6 0 17 9 0 0 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/01a- 11 Oil shows OS Buchan Formation 3176.156208 -- 333 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/01a- 11 Cuttings 879.99 3508.95 -- -- .

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
21/01a- 11 0 -- -- --

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