Well Data Manager / Well Summary / 21/01- 4

21/01- 4

Decommissioned

Well Header

Well No

21/01- 4

NSTA DEN No

897

Well Name

Drill Seq No

Quadrant / Block

21 / 1

Surface Location

57.903036, 0.030308

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

1976-08-13

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

21/01- 4 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

23.470

Ground Elev (m)

Water Depth (m)

117.04

TD MD (m)

2626.162

TD TVDSS (m)

2585.528

TD Datum Depth (m)

23.470

TD Datum Type

Kelly Bushing

Spud Date

1976-08-13

TD Reached

1976-10-20

Completion Date

1976-12-12

Release Date

1980-12-12

Formation Tops (22)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
21/01- 4	Horda	Cenozoic	820.000	796.530	Lloyds Register
	Stronsay	Cenozoic	820.000	796.530	Lloyds Register
	Balder	Cenozoic	1032.000	1008.530	Lloyds Register
	Balder Tuff	Cenozoic	1032.000	1008.530	Lloyds Register
	Moray	Mesozoic	1032.000	1008.530	Lloyds Register
	Dornoch	Mesozoic	1058.000	1034.530	Lloyds Register
	Sele	Mesozoic	1334.000	1310.530	Lloyds Register
	Forties Sandstone	Mesozoic	1442.000	1418.530	Lloyds Register
	Lista	Mesozoic	1553.000	1529.530	Lloyds Register
	Montrose	Mesozoic	1553.000	1529.530	Lloyds Register
	Balmoral Sandstone	Cenozoic	1618.000	1594.530	Lloyds Register
	Glamis Tuff		1734.000	1710.530	Lloyds Register
	Andrew Sandstone	Cenozoic	1762.000	1738.530	Lloyds Register
	Maureen	Mesozoic	2068.000	2044.530	Lloyds Register
	Ekofisk	Mesozoic	2132.000	2108.530	Lloyds Register
	Chalk	Mesozoic	2132.000	2108.530	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2180.000	2156.530	Lloyds Register
	Cromer Knoll	Mesozoic	2597.000	2573.530	Lloyds Register
	Rodby	Mesozoic	2597.000	2573.530	Lloyds Register
	Sola		2600.000	2576.530	Lloyds Register
	Old Red	Palaeozoic	2612.000	2588.530	Lloyds Register
	Old Red Sandstone		2612.000	2588.530	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
21/01- 4	6	11	5	19	22	1	0	1	0	View

Hydrocarbon Occurrence (7)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
21/01- 4	Oil shows	OS	*	1569.72	--	562 m thick
21/01- 4	Gas shows	GS	*	2132.076	--	48 m thick
21/01- 4	Oil shows	OS	*	2197.608	--	70 m thick
21/01- 4	Oil shows	OS	*	2414.016	--	101 m thick
21/01- 4	Oil shows	OS	*	2514.6	--	52 m thick
21/01- 4	Oil shows	OS	*	2566.416	--	15 m thick
21/01- 4	Mixed shows	OGS	*	2611.5264	--	15 m thick

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
21/01- 4	Cuttings	234.7	2621.28	--	--	.

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
21/01- 4	0	--	--	--

21/01- 4

Well Header

Wellbores (1)

Formation Tops (22)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (7)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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