Well Data Manager / Well Summary / 204/26- 1

204/26- 1

Decommissioned

Well Header

Well No

204/26- 1

NSTA DEN No

5591

Well Name

Drill Seq No

Quadrant / Block

204 / 26

Surface Location

60.157428, -4.892058

Source Datum

ED50

Subsea Well

Unknown

Platform

Slot No

Operator

HESS LIMITED

Original Operator

Sub Area Operator

HESS LIMITED

Licence No

P801

Licence Type

Production

Spud Date

1995-08-20

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (2)

204/26- 1 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)

24.994

Ground Elev (m)

Water Depth (m)

632.76

TD MD (m)

1158.240

TD TVDSS (m)

TD Datum Depth (m)

24.994

TD Datum Type

Kelly Bushing

Spud Date

1995-08-20

TD Reached

1995-08-30

Completion Date

1995-09-01

Release Date

1999-09-01

204/26- 1A Sidetrack A parent: 204/26- 1

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Exploration

Original Intent

Exploration

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

24.994

Ground Elev (m)

Water Depth (m)

632.16

TD MD (m)

2652.370

TD TVDSS (m)

2627.376

TD Datum Depth (m)

24.994

TD Datum Type

Kelly Bushing

Spud Date

1995-09-01

TD Reached

1995-10-04

Completion Date

1995-10-08

Release Date

1999-10-08

Formation Tops (26)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
204/26- 1A	Unknown		657.000	632.006	BGS LithoStrat Upper
	Nordland	Cenozoic	686.000	661.005	BGS LithoStrat Upper
	Westray Group	Cenozoic	988.000	962.968	BGS LithoStrat Upper
	Stronsay	Cenozoic	1041.000	1015.944	Ternan Atlantic Margin
	Stronsay Group	Cenozoic	1041.000	1015.944	BGS LithoStrat Upper
	Stronsay Group	Cenozoic	1158.000	1132.891	BGS LithoStrat Upper
	B2 Unit		1644.000	1618.709	BGS LithoStrat Upper
	B1 Unit		1654.000	1628.707	BGS LithoStrat Upper
	F3 Unit		1660.000	1634.706	BGS LithoStrat Upper
	F2 Unit		1663.000	1637.706	BGS LithoStrat Upper
	F1b Unit		1674.000	1648.704	BGS LithoStrat Upper
	F1a Unit		1679.000	1653.704	BGS LithoStrat Upper
	L2 Unit		1700.000	1674.701	BGS LithoStrat Upper
	L1 Unit		1723.000	1697.698	BGS LithoStrat Upper
	Vaila Formation V4	Cenozoic	2297.000	2271.674	BGS LithoStrat Upper
	Vaila Formation V3	Cenozoic	2329.000	2303.673	BGS LithoStrat Upper
	V2 Unit		2387.000	2361.669	BGS LithoStrat Upper
	V1 Unit		2417.000	2391.668	BGS LithoStrat Upper
	Sullom Formation	Mesozoic	2477.000	2451.667	BGS LithoStrat Upper
	Cruiser		2508.000	2482.665	Ternan Atlantic Margin
	Rodby	Mesozoic	2509.000	2483.665	BGS LithoStrat Upper
	Neptune Formation	Mesozoic	2512.000	2486.664	BGS LithoStrat Upper
	Sandstone Unit	Cenozoic	2522.000	2496.662	BGS LithoStrat Upper
	Neptune Formation	Mesozoic	2560.000	2534.654	BGS LithoStrat Upper
	Lewisian		2575.000	2549.651	BGS LithoStrat Upper
	Precambrian Basement		2575.000	2549.651	Ternan Atlantic Margin

Lithology Intervals

204/26- 1A Curve: SANDCOUNT 42 intervals · MD 1157.326 – 2637.587 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/WoS_ArcGIS...

Sandstone (33)

Limestone (6)

Coal (1)

Metamorphic (1)

Tuff (1)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log

Wellbore	Groups	Formations	Members	Strat Intervals	Tops	HC Occ	Core	Cuttings	DSTs
204/26- 1	0	0	0	0	0	1	0	0	0	View
204/26- 1A	6	6	4	23	26	2	0	1	0	View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
204/26- 1A	Cuttings	1170.43	2648.71	--	--	--

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
204/26- 1A	691.1339721679688	2638.501220703125	11	0	2026-08-06 17:17:43.719586+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

204/26- 1A

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	DENS	UKCS JDWL 30th Round	1552.1940000000002	2617.7748	6990
bulk_density	RHOB	CGG Digital Well Logs	1552.1940000000002	2617.4700000000003	6991
caliper	CALI	CGG Digital Well Logs	1141.0188	2612.5932000000003	9597
comp_sonic	DT4P	CGG Digital Well Logs	1550.9748000000002	2626.0044000000003	6978
comp_sonic	DTLF	CGG Digital Well Logs	1141.0188	1555.2420000000002	2719
comp_sonic	DTC	CGG Digital Well Logs	1140.8664	2626.0044000000003	9669
deep_resistivity	RDEP	UKCS JDWL 30th Round	1142.0856	2638.0440000000003	9789
deep_resistivity	RESD	CGG Digital Well Logs	1142.3904	2638.5012	9799
deep_resistivity	AT90	CGG Digital Well Logs	1553.8704	2638.5012	7099
deep_resistivity	IDPH	CGG Digital Well Logs	1142.3904	1563.4716	2764
deep_resistivity	ILD	CGG Digital Well Logs	1142.6952	1563.4716	2662
density_correction	DRHO	CGG Digital Well Logs	1552.1940000000002	2617.4700000000003	6991
density_correction	DENC	UKCS JDWL 30th Round	1552.1940000000002	2617.7748	6990
gamma_ray	CGR	CGG Digital Well Logs	1552.1940000000002	2607.1068	6923
gamma_ray	GR	CGG Digital Well Logs	691.134	2608.326	12544
gamma_ray	SGR	CGG Digital Well Logs	1478.5848	2607.1068	7406
med_resistivity	AT20	CGG Digital Well Logs	1552.0416	2638.5012	7111
med_resistivity	RMED	UKCS JDWL 30th Round	1142.0856	2638.0440000000003	9789
med_resistivity	AT30	CGG Digital Well Logs	1553.2608	2638.5012	7103
med_resistivity	AT60	CGG Digital Well Logs	1554.1752000000001	2638.5012	7097
med_resistivity	ILM	CGG Digital Well Logs	1142.3904	1564.6908	2672
med_resistivity	IMPH	CGG Digital Well Logs	1142.8476	1564.6908	2769
neutron_por	NPHI	CGG Digital Well Logs	1552.1940000000002	2612.5932000000003	6959
neutron_por	NEUT	UKCS JDWL 30th Round	1552.1940000000002	2612.4408000000003	6955
pef	PEF	CGG Digital Well Logs	1552.1940000000002	2617.4700000000003	6989
potassium	POTA	CGG Digital Well Logs	1552.1940000000002	2607.1068	6923
shallow_resistivity	AT10	CGG Digital Well Logs	1551.8892	2638.5012	7112
shear_sonic	DTSM	CGG Digital Well Logs	2314.8036	2626.0044000000003	2043
shear_sonic	DT4S	CGG Digital Well Logs	1550.9748000000002	2626.0044000000003	6929
shear_sonic	DTS	UKCS JDWL 30th Round	1550.3652000000002	2629.3572	6955
shear_sonic	DTS1	UKCS JDWL 30th Round	2287.2192	2653.5888	2405
shear_sonic	DTS2	UKCS JDWL 30th Round	1550.2128	2630.424	7089
sp	SP	CGG Digital Well Logs	1141.0188	1564.0812	2777
thorium	THOR	CGG Digital Well Logs	1552.1940000000002	2607.1068	6923
uranium	URAN	CGG Digital Well Logs	1552.1940000000002	2607.1068	6923

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
204/26- 1	0	--	--	--
204/26- 1A	66	2652.370	2627.015	D:\BigSpatial\nsta_raw\CGG_Deviation\204-26-1A 23413am-CGG_Deviation.xlsx
204/26- 1A	64	2632.862	1953.560	G:\NSTA_BigFiles\NSTA_Packages\UKCS_JDWL_30thRound\WOS\204_26-1A_DEVIATION_SURVEY_QC.xlsm

204/26- 1

Well Header

Wellbores (2)

Formation Tops (26)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (0)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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