Well Data Manager / Well Summary / 21/01a- 21

21/01a- 21

Decommissioned

Well Header

Well No
21/01a- 21
NSTA DEN No
10295
Well Name
--
Drill Seq No
21
Quadrant / Block
21 / 1 a
Surface Location
57.946104, 0.177296
Source Datum
ED50
Subsea Well
Unknown
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
2004-04-07
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/01a- 21 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
JU
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
131.37
TD MD (m)
5188.306
TD TVDSS (m)
4498.114
TD Datum Depth (m)
24.994
TD Datum Type
Rotary Table
Spud Date
2004-04-07
TD Reached
2004-06-20
Completion Date
2015-09-30
Release Date
2019-09-30

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/01a- 21 Sele Mesozoic 156.000 131.006 Lloyds Register
Moray Mesozoic 156.000 131.006 Lloyds Register
Montrose Mesozoic 2006.000 1981.006 Lloyds Register
Lista Mesozoic 2006.000 1981.006 Lloyds Register
Balmoral Sandstone Cenozoic 2038.000 2013.006 Lloyds Register
Glamis Tuff 2322.000 2297.006 Lloyds Register
Andrew Sandstone Cenozoic 2412.000 2387.006 Lloyds Register
Maureen Reworked Unit Mesozoic 2539.000 2514.006 Lloyds Register
Maureen Mesozoic 2539.000 2514.006 Lloyds Register
Ekofisk Mesozoic 2612.000 2587.006 Lloyds Register
Chalk Mesozoic 2612.000 2587.006 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2688.000 2663.006 Lloyds Register
Rodby Mesozoic 3536.000 3511.006 Lloyds Register
Cromer Knoll Mesozoic 3536.000 3511.006 Lloyds Register
Sola 3637.000 3612.006 Lloyds Register
Valhall Mesozoic 3731.000 3706.006 Lloyds Register
Kimmeridge Clay 4822.000 4797.006 Lloyds Register
Humber Mesozoic 4822.000 4797.006 Lloyds Register
Claymore Sandstone Mesozoic 4883.000 4858.006 Lloyds Register

Lithology Intervals

21/01a- 21 Curve: SANDCOUNT 144 intervals  ·  MD 783.488 – 5036.058 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (141)
Limestone (3)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
21/01a- 21 5 9 5 20 19 1 2 1 2 View

Hydrocarbon Occurrence (3)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/01a- 21 DST DST 1a -- 4989.3 5025.5 Label / Upper Jurassic
21/01a- 21 Mixed shows OWGS Burns Sandstone Member 4989.576 -- 54 m thick
21/01a- 21 DST DST 1 -- 5020.1 5044.1 Not used for labelling, multiple DSTs in same play / Upper Jurassic

Rock Samples (3)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/01a- 21 Cuttings 792.48 5188.31 -- -- wet samples
21/01a- 21 Core #1 4994.45 4998.69 -- -- --
21/01a- 21 Core #2 5004.51 5009.08 -- -- --

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- 21 0 -- -- --

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