Well Data Manager / Well Summary / 49/21- 4

49/21- 4

Decommissioned

Well Header

Well No

49/21- 4

NSTA DEN No

407

Well Name

Drill Seq No

Quadrant / Block

49 / 21

Surface Location

53.318415, 2.071068

Source Datum

ED50

Subsea Well

Platform

Slot No

Operator

CHRYSAOR PRODUCTION (U.K.) LIMITED

Original Operator

Sub Area Operator

CHRYSAOR PRODUCTION (U.K.) LIMITED

Licence No

P39

Licence Type

Production

Spud Date

1972-05-22

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

49/21- 4 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Gas Well

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

31.699

Ground Elev (m)

Water Depth (m)

32.92

TD MD (m)

2587.450

TD TVDSS (m)

2552.700

TD Datum Depth (m)

31.699

TD Datum Type

Kelly Bushing

Spud Date

1972-05-22

TD Reached

1972-06-22

Completion Date

1972-07-04

Release Date

1976-07-04

Formation Tops (31)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
49/21- 4	Unknown		65.000	33.301	BGS LithoStrat Upper
	Unknown		107.000	75.301	BGS LithoStrat Upper
	Chalk	Mesozoic	280.000	248.301	BGS LithoStrat Upper
	Unknown		280.000	248.301	BGS LithoStrat Upper
	Unknown		369.000	337.301	BGS LithoStrat Upper
	Haisborough	Mesozoic	620.000	588.301	BGS LithoStrat Upper
	Rhaetic Undifferentiated		620.000	588.301	BGS LithoStrat Upper
	Upper Keuper Member		675.000	643.301	BGS LithoStrat Upper
	Keuper Salt		800.000	768.301	BGS LithoStrat Upper
	Lower Keuper Member		902.000	870.301	BGS LithoStrat Upper
	Upper Muschelkalk	Cenozoic	1040.000	1008.301	BGS LithoStrat Upper
	Muschelkalk Halite Member	Mesozoic	1103.000	1071.301	BGS LithoStrat Upper
	Lower Muschelkalk	Cenozoic	1163.000	1131.301	BGS LithoStrat Upper
	Upper Bunter		1223.000	1191.301	BGS LithoStrat Upper
	Rot Halite Member		1317.000	1285.301	BGS LithoStrat Upper
	Bunter Sandstone	Mesozoic	1346.000	1314.301	BGS LithoStrat Upper
	Bunter Sandstone	Mesozoic	1346.000	1314.301	BGS LithoStrat Upper
	Lower Bunter		1682.000	1650.301	BGS LithoStrat Upper
	Bunter Shale	Mesozoic	1682.000	1650.301	BGS LithoStrat Upper
	Principal Oolite Zone		1751.000	1719.301	BGS LithoStrat Upper
	Bunter Shale	Mesozoic	1787.000	1755.301	BGS LithoStrat Upper
	Basal Bunter Siltstone		1974.000	1942.301	BGS LithoStrat Upper
	Zechstein	Palaeozoic	2002.000	1970.301	BGS LithoStrat Upper
	Zechstein Z4		2002.000	1970.301	BGS LithoStrat Upper
	Upper Magnesian Limestone		2077.000	2045.301	BGS LithoStrat Upper
	Zechstein Z2		2151.000	2119.301	BGS LithoStrat Upper
	Lower Magnesian Limestone	Palaeozoic	2192.000	2160.301	BGS LithoStrat Upper
	Rotliegendes		2281.000	2249.301	BGS LithoStrat Upper
	Rotliegendes		2281.000	2249.301	BGS LithoStrat Upper
	Kupferschiefer	Palaeozoic	2281.000	2249.301	BGS LithoStrat Upper
	Unknown		2562.000	2530.301	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
49/21- 4	5	1	0	25	31	4	0	1	5	View

Hydrocarbon Occurrence (8)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
49/21- 4	Gas shows	GS	Upper Magnesian Limestone [Obsolete: use SEH, ROD, CNCL]	2076.6024	--	74 m thick
49/21- 4	DST	DST 1	--	2085.8	2141.2	Label / Zechstein
49/21- 4	Gas shows	GS	Lower Magnesian Limestone (Durham) [Obsolete: use CDF, RML]	2191.8168	--	89 m thick
49/21- 4	DST	DST 3	--	2257.7	2382.0	Not used for labelling, multiple DSTs in same play / Zechstein
49/21- 4	DST	DST 2	--	2267.7	2298.2	Not used for labelling, multiple DSTs in same play / Zechstein
49/21- 4	Gas	G	Rotliegend Group	2281.1232	--	281 m thick
49/21- 4	DST	DST 4	--	2383.5	2447.5	Label / Rotliegend
49/21- 4	DST	DST 4A	--	2383.6	2447.6	Not used for labelling, multiple DSTs in same play / Rotliegend

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
49/21- 4	Cuttings	100.58	2587.14	--	--	.

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
49/21- 4	0	--	--	--

49/21- 4

Well Header

Wellbores (1)

Formation Tops (31)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (8)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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