Well Data Manager / Well Summary / 21/10- 7

21/10- 7

Decommissioned

Well Header

Well No

21/10- 7

NSTA DEN No

2819

Well Name

Drill Seq No

Quadrant / Block

21 / 10

Surface Location

57.812751, 0.923737

Source Datum

ED50

Subsea Well

Yes

Platform

Slot No

Operator

APACHE NORTH SEA LIMITED

Original Operator

Sub Area Operator

APACHE NORTH SEA LIMITED

Licence No

P246

Licence Type

Production

Spud Date

1985-10-28

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (1)

21/10- 7 Original

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)

25.000

Ground Elev (m)

Water Depth (m)

129.00

TD MD (m)

3774.000

TD TVDSS (m)

3645.000

TD Datum Depth (m)

25.000

TD Datum Type

Kelly Bushing

Spud Date

1985-10-28

TD Reached

1985-12-22

Completion Date

1985-12-28

Release Date

1989-12-28

Formation Tops (25)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
21/10- 7	Horda	Cenozoic	2102.000	2076.971	Lloyds Register
	Stronsay	Cenozoic	2102.000	2076.971	Lloyds Register
	Caran Sanstone		2187.000	2161.961	Lloyds Register
	Balder	Cenozoic	2301.000	2275.956	Lloyds Register
	Moray	Mesozoic	2301.000	2275.956	Lloyds Register
	Balder Tuff	Cenozoic	2308.000	2282.956	Lloyds Register
	Sele	Mesozoic	2336.000	2310.955	Lloyds Register
	Forties Sandstone	Mesozoic	2385.000	2359.954	Lloyds Register
	Montrose	Mesozoic	2502.000	2476.952	Lloyds Register
	Lista	Mesozoic	2502.000	2476.952	Lloyds Register
	Balmoral Sandstone	Cenozoic	2555.000	2529.948	Lloyds Register
	Andrew Sandstone	Cenozoic	2596.000	2570.946	Lloyds Register
	Maureen	Mesozoic	2686.000	2660.944	Lloyds Register
	Ekofisk	Mesozoic	2837.000	2811.901	Lloyds Register
	Chalk	Mesozoic	2837.000	2811.901	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	2902.000	2876.859	Lloyds Register
	Rodby	Mesozoic	3564.000	3538.358	Lloyds Register
	Cromer Knoll	Mesozoic	3564.000	3538.358	Lloyds Register
	Sola		3577.000	3551.353	Lloyds Register
	Valhall	Mesozoic	3598.000	3572.344	Lloyds Register
	Humber	Mesozoic	3633.000	3607.329	Lloyds Register
	Kimmeridge Clay		3633.000	3607.329	Lloyds Register
	Pentland	Mesozoic	3718.000	3692.293	Lloyds Register
	Rattray Volcanics	Mesozoic	3718.000	3692.293	Lloyds Register
	Fladen	Mesozoic	3718.000	3692.293	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
21/10- 7	7	12	6	21	25	1	0	1	0	View

Hydrocarbon Occurrence (3)

Wellbore	Category	Code	Formation / Litho	Top MD (m)	Base MD (m)	Notes
21/10- 7	Oil shows	OS	Herring Formation	3524.3	--	39 m thick
21/10- 7	Oil shows	OS	VALH	3620.0	--	13 m thick
21/10- 7	Gas shows	GS	Kimmeridge Clay Formation	3632.9000000000005	--	85 m thick

Rock Samples (1)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
21/10- 7	Cuttings	250.0	3769.95	--	--	.

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
21/10- 7	236.22000122070312	3773.881103515625	10	0	2026-08-06 10:11:53.625145+00	View Log

Source LAS Manifest (Best Curve per Type)

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21/10- 7

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	RHOB	CGG Digital Well Logs	3523.9452	3772.3572	1471
caliper	CAL	CGG Digital Well Logs	482.346	3772.3572	12842
caliper	CALI	CGG Digital Well Logs	3524.0976	3754.5264	1513
comp_sonic	DT	CGG Digital Well Logs	482.1936	3760.9272	21265
deep_resistivity	ILD	CGG Digital Well Logs	482.1936	3772.9668	21462
density_correction	DRHO	CGG Digital Well Logs	3523.9452	3772.3572	1471
gamma_ray	GR	CGG Digital Well Logs	236.22	3763.9752	23149
gamma_ray	GRD	CGG Digital Well Logs	3460.3944	3763.8228	1785
med_resistivity	ILM	CGG Digital Well Logs	482.1936	2208.4284	11328
neutron_por	NPHI	CGG Digital Well Logs	3524.0976	3766.1088	1403
shallow_resistivity	SFLU	CGG Digital Well Logs	2223.2112	3772.2048	10151
sp	SP	CGG Digital Well Logs	2222.9064	3773.8812	10155

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
21/10- 7	111	3770.010	3744.281	D:\BigSpatial\nsta_raw\CGG_Deviation\21-10-7 5246w_CGG-Deviation.xlsx

21/10- 7

Well Header

Wellbores (1)

Formation Tops (25)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (3)

Rock Samples (1)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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