Well Data Manager / Well Summary / 13/28- 4

13/28- 4

Decommissioned

Well Header

Well No

13/28- 4

NSTA DEN No

2496

Well Name

Drill Seq No

Quadrant / Block

13 / 28

Surface Location

58.117175, -1.570698

Source Datum

ED50

Subsea Well

Platform

Slot No

Operator

CALEDONIA NORTH SEA LIMITED

Original Operator

Sub Area Operator

CALEDONIA NORTH SEA LIMITED

Licence No

P297

Licence Type

Production

Spud Date

1984-09-21

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

13/28- 4 Original

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)

73.15

TD MD (m)

3013.253

TD TVDSS (m)

2987.033

TD Datum Depth (m)

25.298

TD Datum Type

Kelly Bushing

Spud Date

1984-09-21

TD Reached

1984-10-29

Completion Date

1984-11-09

Release Date

1988-11-09

Formation Tops (18)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
13/28- 4	Ekofisk	Mesozoic	834.000	808.671	Lloyds Register
	Chalk	Mesozoic	834.000	808.671	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	888.000	862.670	Lloyds Register
	Rodby	Mesozoic	1385.000	1359.629	Lloyds Register
	Cromer Knoll	Mesozoic	1385.000	1359.629	Lloyds Register
	Sola		1409.000	1383.626	Lloyds Register
	Valhall	Mesozoic	1525.000	1499.605	Lloyds Register
	Wick Sandstone		1933.000	1907.482	Lloyds Register
	Kimmeridge Clay		1966.000	1940.475	Lloyds Register
	Humber	Mesozoic	1966.000	1940.475	Lloyds Register
	Burns Sandstone	Mesozoic	1974.000	1948.473	Lloyds Register
	Ross Sandstone		2550.000	2524.187	Lloyds Register
	Smith Bank	Mesozoic	2586.000	2560.164	Lloyds Register
	Heron	Palaeozoic	2586.000	2560.164	Lloyds Register
	Rotliegend		2678.000	2652.110	Lloyds Register
	Auk		2678.000	2652.110	Lloyds Register
	Old Red	Palaeozoic	2966.000	2939.996	Lloyds Register
	Old Red Sandstone		2966.000	2939.996	Lloyds Register

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
13/28- 4	6	11	1	23	18	2	0	1	2	View

Hydrocarbon Occurrence (4)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
13/28- 4	Oil shows	OS	Kimmeridge Clay Formation	2133.6	--	310 m thick
13/28- 4	Mixed shows	OGS	Rotliegend Group	2677.668	--	288 m thick
13/28- 4	DST	DST 1	--	2761.5	2785.9	Not used for labelling, multiple DSTs in same play / Rotliegend
13/28- 4	DST	DST 1A	--	2761.5	2785.9	Label / Rotliegend

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
13/28- 4	Cuttings	292.61	3011.42	--	--	.

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
13/28- 4	282.3971862792969	3014.92919921875	9	0	2026-08-06 07:48:22.247543+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

13/28- 4

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	1828.9524000000001	3014.9292	7783
caliper	CALI	CGG Digital Well Logs	1828.9524000000001	3014.9292	7783
comp_sonic	DT	CGG Digital Well Logs	283.0068	3003.0420000000004	17816
deep_resistivity	ILD	CGG Digital Well Logs	282.3972	3013.2528	17920
density_correction	DRHO	CGG Digital Well Logs	1828.9524000000001	3014.9292	7783
gamma_ray	SGR	CGG Digital Well Logs	1828.8000000000002	3005.1756	7720
gamma_ray	CGR	CGG Digital Well Logs	1828.8000000000002	3005.1756	7720
gamma_ray	GR	CGG Digital Well Logs	282.3972	3006.2424	17874
med_resistivity	ILM	CGG Digital Well Logs	282.8544	3014.1672000000003	17918
neutron_por	NPHI	CGG Digital Well Logs	1828.9524000000001	3008.2236000000003	7739
pef	PEF	CGG Digital Well Logs	1828.9524000000001	3014.9292	7783
potassium	POTA	CGG Digital Well Logs	1828.8000000000002	3005.1756	7720
thorium	THOR	CGG Digital Well Logs	1828.8000000000002	3005.1756	7720
uranium	URAN	CGG Digital Well Logs	1828.8000000000002	3005.1756	7720

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
13/28- 4	113	3016.148	2990.129	D:\BigSpatial\nsta_raw\CGG_Deviation\13-28-4 7226fg-CGG_Deviation.xlsx

13/28- 4

Well Header

Wellbores (1)

Formation Tops (18)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (4)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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