Well Data Manager / Well Summary / 14/20b- 25

14/20b- 25

Decommissioned

Well Header

Well No

14/20b- 25

NSTA DEN No

4204

Well Name

Drill Seq No

Quadrant / Block

14 / 20 b

Surface Location

58.460818, -0.051124

Source Datum

ED50

Subsea Well

Platform

Slot No

Operator

DNO NORTH SEA (U.K.) LIMITED

Original Operator

Sub Area Operator

DNO NORTH SEA (U.K.) LIMITED

Licence No

P324

Licence Type

Production

Spud Date

1990-09-23

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (2)

14/20b- 25 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

24.384

Ground Elev (m)

Water Depth (m)

134.11

TD MD (m)

1174.394

TD TVDSS (m)

1105.510

TD Datum Depth (m)

24.384

TD Datum Type

Kelly Bushing

Spud Date

1990-09-23

TD Reached

1990-11-18

Completion Date

1990-11-27

Release Date

1994-11-27

14/20b- 25A Sidetrack A parent: 14/20b- 25

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Show

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

25.298

Ground Elev (m)

Water Depth (m)

135.03

TD MD (m)

3906.622

TD TVDSS (m)

3625.901

TD Datum Depth (m)

25.298

TD Datum Type

Kelly Bushing

Spud Date

1990-10-04

TD Reached

1990-11-18

Completion Date

2002-12-13

Release Date

2006-12-13

Formation Tops (42)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
14/20b- 25	Stronsay	Cenozoic	806.000	781.616	Lloyds Register
	Beauly	Cenozoic	858.000	833.616	Lloyds Register
	Moray	Mesozoic	858.000	833.616	Lloyds Register
	Dornoch	Mesozoic	983.000	958.616	Lloyds Register
	Upper Dornoch Sandstone	Cenozoic	983.000	958.616	Lloyds Register
	Sele	Mesozoic	1115.000	1090.616	Lloyds Register
	Lista	Mesozoic	1424.000	1399.616	Lloyds Register
	Montrose	Mesozoic	1424.000	1399.616	Lloyds Register
	Balmoral Sandstone	Cenozoic	1545.000	1520.616	Lloyds Register
	Glamis Tuff		1668.000	1643.616	Lloyds Register
	Andrew Sandstone	Cenozoic	1708.000	1683.616	Lloyds Register
	Maureen	Mesozoic	1964.000	1939.616	Lloyds Register
	Maureen Sandstone	Mesozoic	1964.000	1939.616	Lloyds Register
	Ekofisk	Mesozoic	2074.000	2049.616	Lloyds Register
	Chalk	Mesozoic	2074.000	2049.616	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2181.000	2156.616	Lloyds Register
	Cromer Knoll	Mesozoic	2986.000	2961.616	Lloyds Register
	Rodby	Mesozoic	2986.000	2961.616	Lloyds Register
14/20b- 25A	Nordland	Cenozoic	161.000	135.702	BGS LithoStrat Upper
	Nordland	Cenozoic	610.000	578.678	BGS LithoStrat Upper
	Beauly	Cenozoic	858.000	824.227	BGS LithoStrat Upper
	Dornoch	Mesozoic	983.000	948.549	BGS LithoStrat Upper
	Montrose	Mesozoic	1424.000	1387.997	BGS LithoStrat Upper
	Andrew	Cenozoic	1708.000	1671.433	BGS LithoStrat Upper
	Maureen	Mesozoic	1964.000	1926.977	BGS LithoStrat Upper
	Ekofisk	Mesozoic	2074.000	2036.784	BGS LithoStrat Upper
	Tor	Mesozoic	2181.000	2143.585	BGS LithoStrat Upper
	Flounder	Mesozoic	2407.000	2366.582	BGS LithoStrat Upper
	Flounder	Mesozoic	2783.000	2713.390	BGS LithoStrat Upper
	Herring	Mesozoic	2877.000	2789.444	BGS LithoStrat Upper
	Plenus Marl		2945.000	2841.229	BGS LithoStrat Upper
	Hidra	Mesozoic	2954.000	2848.209	BGS LithoStrat Upper
	Rodby	Mesozoic	2986.000	2873.252	BGS LithoStrat Upper
	Sola Formation		3046.000	2920.768	BGS LithoStrat Upper
	Valhall	Mesozoic	3126.000	2984.917	BGS LithoStrat Upper
	Valhall	Mesozoic	3155.000	3008.406	BGS LithoStrat Upper
	Valhall	Mesozoic	3478.000	3264.380	BGS LithoStrat Upper
	Lower Cretaceous Sands	Mesozoic	3672.000	3413.080	BGS LithoStrat Upper
	Valhall	Mesozoic	3700.000	3434.880	BGS LithoStrat Upper
	Kimmeridge Clay		3748.000	3472.710	BGS LithoStrat Upper
	Halibut Bank		3816.000	3527.691	BGS LithoStrat Upper
	Forth Formation	Cenozoic	3832.000	3540.748	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
14/20b- 25	5	8	5	1	18	1	3	0	0	View
14/20b- 25A	0	0	0	24	24	0	0	1	0	View

Hydrocarbon Occurrence (3)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
14/20b- 25A	Oil shows	OS	LCSD	3671.6208	--	29 m thick
14/20b- 25A	Oil shows	OS	Kimmeridge Clay Formation	3747.8208	--	69 m thick
14/20b- 25A	Oil shows	OS	FRTH	3831.9456	--	100 m thick

Rock Samples (4)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
14/20b- 25	Core #1	3674.36	3691.62	--	--	.
14/20b- 25	Core #2	3691.89	3703.66	--	--	.
14/20b- 25	Core #3	3861.21	3871.94	--	--	.
14/20b- 25A	Cuttings	612.65	3931.92	--	--	too small to sample .

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
14/20b- 25A	146.60879516601562	3934.6630859375	10	0	2026-08-06 07:57:38.466619+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

14/20b- 25A

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	3162.1476000000002	3934.6632000000004	5070
caliper	CALI	CGG Digital Well Logs	604.8756000000001	3934.5108	21664
comp_sonic	DT	CGG Digital Well Logs	606.0948000000001	3923.2332	21555
deep_resistivity	ILD	CGG Digital Well Logs	605.7900000000001	3932.3772000000004	21829
density_correction	DRHO	CGG Digital Well Logs	3162.1476000000002	3934.6632000000004	5070
gamma_ray	SGR	CGG Digital Well Logs	3151.632	3912.7176000000004	4995
gamma_ray	CGR	CGG Digital Well Logs	3151.632	3912.7176000000004	4995
gamma_ray	GR	CGG Digital Well Logs	146.6088	3923.9952000000003	24787
med_resistivity	ILM	CGG Digital Well Logs	605.6376	3933.4440000000004	21837
neutron_por	NPHI	CGG Digital Well Logs	3162.3	3928.5672000000004	5029
pef	PEF	CGG Digital Well Logs	3162.6048	3934.6632000000004	5067
potassium	POTA	CGG Digital Well Logs	3151.632	3912.7176000000004	4995
shallow_resistivity	SFLU	CGG Digital Well Logs	606.0948000000001	2219.4012000000002	10587
thorium	THOR	CGG Digital Well Logs	3151.632	3912.7176000000004	4995
uranium	URAN	CGG Digital Well Logs	3151.632	3912.7176000000004	4995

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
14/20b- 25	0	--	--	--
14/20b- 25A	225	3931.920	3625.671	D:\BigSpatial\nsta_raw\CGG_Deviation\14-20b-25A 25581au_CGG-Deviation.xlsx

14/20b- 25

Well Header

Wellbores (2)

Formation Tops (42)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (3)

Rock Samples (4)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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