Well Data Manager / Well Summary / 15/25b- 12

15/25b- 12

Decommissioned

Well Header

Well No

15/25b- 12

NSTA DEN No

11518

Well Name

Drill Seq No

Quadrant / Block

15 / 25 b

Surface Location

58.182782, 0.988632

Source Datum

ED50

Subsea Well

Unknown

Platform

Slot No

Operator

PREMIER OIL E&P UK LIMITED

Original Operator

Sub Area Operator

PREMIER OIL E&P UK LIMITED

Licence No

P1042

Licence Type

Production

Spud Date

2004-11-04

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (3)

15/25b- 12 Original

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Rotary Table

Datum Elev (m)

24.384

Ground Elev (m)

Water Depth (m)

149.66

TD MD (m)

2177.491

TD TVDSS (m)

2130.552

TD Datum Depth (m)

24.384

TD Datum Type

Rotary Table

Spud Date

2004-11-04

TD Reached

2004-11-13

Completion Date

2004-11-14

Release Date

2007-11-14

15/25b- 12Y Sidetrack Y parent: 15/25b- 12Z

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB3

Datum Type

Rotary Table

Datum Elev (m)

24.384

Ground Elev (m)

Water Depth (m)

149.66

TD MD (m)

2333.854

TD TVDSS (m)

2146.706

TD Datum Depth (m)

24.384

TD Datum Type

Rotary Table

Spud Date

2004-11-21

TD Reached

2004-11-27

Completion Date

2004-12-21

Release Date

2007-12-21

15/25b- 12Z Sidetrack Z parent: 15/25b- 12

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB2

Datum Type

Rotary Table

Datum Elev (m)

24.384

Ground Elev (m)

Water Depth (m)

149.66

TD MD (m)

2331.720

TD TVDSS (m)

2174.443

TD Datum Depth (m)

24.384

TD Datum Type

Rotary Table

Spud Date

2004-11-14

TD Reached

2004-11-18

Completion Date

2004-11-20

Release Date

2007-11-20

Formation Tops (21)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
15/25b- 12	Unknown		174.000	149.616	BGS LithoStrat Upper
	Nordland	Cenozoic	716.000	691.616	BGS LithoStrat Upper
	Hordaland	Cenozoic	1173.000	1148.616	BGS LithoStrat Upper
	Horda Formation	Cenozoic	1506.000	1481.616	BGS LithoStrat Upper
	Belton Member		1558.000	1533.616	BGS LithoStrat Upper
	Balder Claystone Member	Palaeozoic	2040.000	2015.616	BGS LithoStrat Upper
	Balder Tuff Member		2062.000	2037.616	BGS LithoStrat Upper
	Sele	Mesozoic	2082.000	2057.616	BGS LithoStrat Upper
	Lista	Mesozoic	2128.000	2103.616	BGS LithoStrat Upper
	Upper Balmoral Member		2132.000	2107.616	BGS LithoStrat Upper
	Balmoral Member		2156.000	2131.616	BGS LithoStrat Upper
15/25b- 12Y	Unknown		174.000	149.616	BGS LithoStrat Upper
	Nordland	Cenozoic	716.000	691.616	BGS LithoStrat Upper
	Hordaland	Cenozoic	1169.000	1144.616	BGS LithoStrat Upper
	Horda Formation	Cenozoic	1547.000	1522.616	BGS LithoStrat Upper
	Belton Member		1603.000	1578.616	BGS LithoStrat Upper
	Balder	Cenozoic	2151.000	2126.616	BGS LithoStrat Upper
	Sele	Mesozoic	2184.000	2159.616	BGS LithoStrat Upper
	Lista	Mesozoic	2244.000	2219.616	BGS LithoStrat Upper
	Upper Balmoral Member		2250.000	2225.616	BGS LithoStrat Upper
	Balmoral Member		2292.000	2267.616	BGS LithoStrat Upper

Lithology Intervals

15/25b- 12Z Curve: SANDCOUNT 23 intervals · MD 1511.503 – 2164.080 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...

Sandstone (23)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log

Wellbore	Groups	Formations	Members	Strat Intervals	Tops	HC Occ	Cuttings	DSTs
15/25b- 12	0	0	0	11	11	1	1	0	View
15/25b- 12Y	0	0	0	10	10	1	1	1	View
15/25b- 12Z	3	4	4	12	0	1	1	0	View

Hydrocarbon Occurrence (3)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
15/25b- 12Y	DST	DST 1	--	2245.8	2266.5	Label / Balmoral
15/25b- 12Y	Oil shows	OS	UBAL	2250.0336	--	42 m thick
15/25b- 12Z	Oil shows	OS	UBAL	2231.136	--	38 m thick

Rock Samples (3)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
15/25b- 12	Cuttings	746.76	2180.54	--	--	set B
15/25b- 12Y	Cuttings	746.76	2333.85	--	--	set B
15/25b- 12Z	Cuttings	853.44	2331.72	--	--	set B

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Ingested
15/25b- 12	701.9544067382812	2163.927734375	5	2026-08-06 08:34:19.148508+00	View Log
15/25b- 12Y	709.2695922851562	2318.461181640625	6	2026-08-06 08:34:19.772677+00	View Log
15/25b- 12Z	721.1567993164062	2318.004150390625	7	2026-08-06 16:59:13.436599+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

15/25b- 12

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	DEN	OGA Batch Unzipped	703.4784000000001	2147.6208	9435
caliper	CALI	OGA Batch Unzipped	701.9544000000001	2147.9256	9489
deep_resistivity	RES_DEP	OGA Batch Unzipped	715.9752000000001	2162.556	9493
gamma_ray	GR	OGA Batch Unzipped	717.8040000000001	2163.9276	9490
med_resistivity	RES_MED	OGA Batch Unzipped	715.9752000000001	2162.556	9493

15/25b- 12Y

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	DEN	OGA Batch Unzipped	2218.6392	2308.86	593
caliper	CALI	OGA Batch Unzipped	2217.7248	2309.1648	601
deep_resistivity	RES_DEP	OGA Batch Unzipped	730.758	2317.3944	10412
density_correction	DENC	OGA Batch Unzipped	2218.6392	2308.86	593
gamma_ray	GR	OGA Batch Unzipped	709.2696000000001	2318.4612	10560
med_resistivity	RES_MED	OGA Batch Unzipped	729.6912	2317.3944	10419

15/25b- 12Z

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	730.1484	2302.4592000000002	10318
bulk_density	DEN	OGA Batch Unzipped	723.2904000000001	2302.1544	10238
caliper	CALI	CGG Digital Well Logs	730.3008	2302.764	10319
deep_resistivity	RES_DEP	OGA Batch Unzipped	734.568	2316.1752	10297
density_correction	DENC	OGA Batch Unzipped	723.2904000000001	2302.1544	10238
density_correction	DRHO	CGG Digital Well Logs	730.1484	2302.4592000000002	10318
gamma_ray	GRC	CGG Digital Well Logs	735.7872	2318.004	10383
gamma_ray	GR	OGA Batch Unzipped	736.3968	2317.5468	10300
med_resistivity	RES_MED	OGA Batch Unzipped	734.568	2316.1752	10297
neutron_por	NLIM	CGG Digital Well Logs	721.1568000000001	2302.6116	10378

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
15/25b- 12	0	--	--	--
15/25b- 12Y	0	--	--	--
15/25b- 12Z	80	2331.720	2174.418	D:\BigSpatial\nsta_raw\CGG_Deviation\15-25b-12Z 29031s_CGG-Deviation.xlsx

15/25b- 12

Well Header

Wellbores (3)

Formation Tops (21)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (3)

Rock Samples (3)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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