Well Data Manager / Well Summary / 204/25a- 8

204/25a- 8

Decommissioned

Well Header

Well No

204/25a- 8

NSTA DEN No

18866

Well Name

Drill Seq No

Quadrant / Block

204 / 25 a

Surface Location

60.308476, -4.048581

Source Datum

ED50

Subsea Well

Unknown

Platform

Slot No

Operator

ADURA ENERGY LIMITED

Original Operator

Sub Area Operator

ADURA ENERGY LIMITED

Licence No

P559

Licence Type

Production

Spud Date

2008-01-22

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (3)

204/25a- 8 Original

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

23.500

Ground Elev (m)

Water Depth (m)

326.00

TD MD (m)

1892.000

TD TVDSS (m)

1508.000

TD Datum Depth (m)

23.500

TD Datum Type

Kelly Bushing

Spud Date

2008-01-22

TD Reached

2008-02-19

Completion Date

2008-02-24

Release Date

2012-02-24

204/25a- 8Y Sidetrack Y parent: 204/25a- 8Z

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

Kelly Bushing

Datum Elev (m)

23.500

Ground Elev (m)

Water Depth (m)

326.00

TD MD (m)

2349.000

TD TVDSS (m)

1791.000

TD Datum Depth (m)

23.500

TD Datum Type

Kelly Bushing

Spud Date

2008-03-16

TD Reached

2008-03-24

Completion Date

2008-04-10

Release Date

2012-04-10

204/25a- 8Z Sidetrack Z parent: 204/25a- 8

Abandoned Phase 3 Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Oil Well

Dev Type

Convention

Primary Target

Well Seq

WB2

Datum Type

Kelly Bushing

Datum Elev (m)

23.500

Ground Elev (m)

Water Depth (m)

326.00

TD MD (m)

2890.000

TD TVDSS (m)

2142.000

TD Datum Depth (m)

23.500

TD Datum Type

Kelly Bushing

Spud Date

2008-02-24

TD Reached

2008-03-01

Completion Date

2008-03-16

Release Date

2012-03-16

Formation Tops (10)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
204/25a- 8Y	Stronsay Group	Cenozoic	349.000	325.500	BGS LithoStrat Upper
	Balder	Cenozoic	946.000	921.526	BGS LithoStrat Upper
	Lista Formation Equivalent	Mesozoic	1025.000	997.820	BGS LithoStrat Upper
	Vaila Formation	Cenozoic	1715.000	1425.563	BGS LithoStrat Upper
204/25a- 8Z	Stronsay Group	Cenozoic	349.000	325.500	BGS LithoStrat Upper
	Balder	Cenozoic	944.000	920.500	BGS LithoStrat Upper
	Lista Formation Equivalent	Mesozoic	1022.000	998.500	BGS LithoStrat Upper
	Vaila Formation	Cenozoic	1593.000	1569.500	BGS LithoStrat Upper
	Sullom Formation	Mesozoic	2722.000	2698.500	BGS LithoStrat Upper
	Shetland	Mesozoic	2870.000	2846.500	BGS LithoStrat Upper

Lithology Intervals

No lithology intervals ingested for this well.

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log

Wellbore	Strat Intervals	Tops	HC Occ
204/25a- 8	0	0	2	View
204/25a- 8Y	4	4	1	View
204/25a- 8Z	6	6	3	View

Hydrocarbon Occurrence (3)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
204/25a- 8Y	Oil shows	OS	Balder Formation	945.9999999999999	--	79 m thick
204/25a- 8Y	Oil shows	OS	Lista Formation	1025.0	--	79 m thick
204/25a- 8Y	Oil shows	OS	Vaila Formation	1715.0	--	310 m thick

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
204/25a- 8Y	762.0	2332.48193359375	8	0	2026-08-06 17:17:40.832694+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

204/25a- 8Y

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOZ	CGG Additional JDWLs	1969.3128	2332.482	2384
caliper	HCAL	CGG Additional JDWLs	1977.5424	2320.8996	2254
comp_sonic	DTCO	CGG Additional JDWLs	1968.8556	2323.9476	2331
density_correction	HDRA	CGG Additional JDWLs	1969.3128	2332.482	2384
gamma_ray	GR	CGG Additional JDWLs	762.0	2326.9956	10270
gamma_ray	HSGR	CGG Additional JDWLs	1914.144	2312.9748	2618
gamma_ray	HCGR	CGG Additional JDWLs	1914.144	2312.9748	2618
neutron_por	TNPH	CGG Additional JDWLs	1914.144	2327.91	2716
pef	PEFZ	CGG Additional JDWLs	1969.3128	2332.482	2384
shear_sonic	DTSM	CGG Additional JDWLs	1968.8556	2323.9476	2331
sp	SP	CGG Additional JDWLs	1970.532	2331.8724	2372

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
204/25a- 8	0	--	--	--
204/25a- 8Y	69	2349.000	1791.535	D:\BigSpatial\nsta_raw\CGG_Deviation\29926bb-CGG-deviation.xlsx
204/25a- 8Z	0	--	--	--

204/25a- 8

Well Header

Wellbores (3)

Formation Tops (10)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (3)

Rock Samples (0)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

Related Documents