Well Data Manager / Well Summary / 21/06b- 4

21/06b- 4

Decommissioned

Well Header

Well No

21/06b- 4

NSTA DEN No

4380

Well Name

Drill Seq No

Quadrant / Block

21 / 6 b

Surface Location

57.737671, 0.112796

Source Datum

ED50

Subsea Well

Unknown

Platform

Slot No

Operator

HESS LIMITED

Original Operator

Sub Area Operator

HESS LIMITED

Licence No

P647

Licence Type

Production

Spud Date

1991-03-17

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

21/06b- 4 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Oil Show

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

28.956

Ground Elev (m)

Water Depth (m)

122.22

TD MD (m)

3360.720

TD TVDSS (m)

3331.210

TD Datum Depth (m)

28.956

TD Datum Type

Kelly Bushing

Spud Date

1991-03-17

TD Reached

1991-04-22

Completion Date

1991-04-23

Release Date

1995-04-23

Formation Tops (25)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
21/06b- 4	Balder	Cenozoic	1329.000	1300.044	Lloyds Register
	Moray	Mesozoic	1329.000	1300.044	Lloyds Register
	Balder Tuff	Cenozoic	1330.000	1301.044	Lloyds Register
	Dornoch	Mesozoic	1342.000	1313.044	Lloyds Register
	Sele	Mesozoic	1379.000	1350.044	Lloyds Register
	Forties Sandstone	Mesozoic	1588.000	1559.044	Lloyds Register
	Lista	Mesozoic	1718.000	1689.044	Lloyds Register
	Montrose	Mesozoic	1718.000	1689.044	Lloyds Register
	Balmoral Sandstone	Cenozoic	1783.000	1754.044	Lloyds Register
	Glamis Tuff		1939.000	1910.044	Lloyds Register
	Andrew Sandstone	Cenozoic	1957.000	1928.044	Lloyds Register
	Maureen	Mesozoic	2132.000	2103.044	Lloyds Register
	Maureen Sandstone	Mesozoic	2135.000	2106.044	Lloyds Register
	Ekofisk	Mesozoic	2194.000	2165.044	Lloyds Register
	Chalk	Mesozoic	2194.000	2165.044	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2217.000	2188.044	Lloyds Register
	Cromer Knoll	Mesozoic	2541.000	2512.044	Lloyds Register
	Rodby	Mesozoic	2541.000	2512.044	Lloyds Register
	Sola		2595.000	2566.044	Lloyds Register
	Valhall	Mesozoic	2663.000	2634.044	Lloyds Register
	Kimmeridge Clay		2825.000	2796.044	Lloyds Register
	Humber	Mesozoic	2825.000	2796.044	Lloyds Register
	Piper	Mesozoic	2921.000	2892.044	Lloyds Register
	Heron	Palaeozoic	2923.000	2894.044	Lloyds Register
	Smith Bank	Mesozoic	2923.000	2894.044	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
21/06b- 4	6	13	6	21	25	2	0	1	0	View

Hydrocarbon Occurrence (1)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
21/06b- 4	Gas shows	GS	Lista Formation	1717.8528000000001	--	65 m thick

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
21/06b- 4	Cuttings	728.47	3352.8	--	--	.

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
21/06b- 4	0	--	--	--

21/06b- 4

Well Header

Wellbores (1)

Formation Tops (25)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (1)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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