Well Data Manager / Well Summary / 23/26a- 19

23/26a- 19

Decommissioned

Well Header

Well No

23/26a- 19

NSTA DEN No

4915

Well Name

Drill Seq No

Quadrant / Block

23 / 26 a

Surface Location

57.060807, 2.074726

Source Datum

ED50

Subsea Well

Unknown

Platform

Slot No

Operator

BP EXPLORATION OPERATING COMPANY LIMITED

Original Operator

Sub Area Operator

BP EXPLORATION OPERATING COMPANY LIMITED

Licence No

P57

Licence Type

Production

Spud Date

1993-01-06

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (3)

23/26a- 19 Original

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB1

Datum Type

Rotary Table

Datum Elev (m)

26.000

Ground Elev (m)

Water Depth (m)

89.00

TD MD (m)

2939.000

TD TVDSS (m)

2909.000

TD Datum Depth (m)

26.000

TD Datum Type

Kelly Bushing

Spud Date

1993-01-06

TD Reached

1993-02-10

Completion Date

1993-02-13

Release Date

1997-02-13

23/26a- 19Y Sidetrack Y parent: 23/26a- 19Z

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB3

Datum Type

Rotary Table

Datum Elev (m)

26.000

Ground Elev (m)

Water Depth (m)

89.00

TD MD (m)

5100.000

TD TVDSS (m)

5030.800

TD Datum Depth (m)

26.000

TD Datum Type

Kelly Bushing

Spud Date

1993-04-30

TD Reached

1993-06-14

Completion Date

1993-06-21

Release Date

1997-06-21

23/26a- 19Z Sidetrack Z parent: 23/26a- 19

Abandoned Phase 3 View Log Interpreted Data Survey

Current Intent

Appraisal

Original Intent

Appraisal

Flow Class

Dry Hole

Dev Type

Convention

Primary Target

Well Seq

WB2

Datum Type

Rotary Table

Datum Elev (m)

26.000

Ground Elev (m)

Water Depth (m)

89.00

TD MD (m)

4505.000

TD TVDSS (m)

4436.640

TD Datum Depth (m)

26.000

TD Datum Type

Kelly Bushing

Spud Date

1993-02-15

TD Reached

1993-04-19

Completion Date

1993-04-28

Release Date

1997-04-28

Formation Tops (72)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
23/26a- 19	Unknown		115.000	89.000	BGS LithoStrat Upper
	Nordland	Cenozoic	1000.000	973.655	BGS LithoStrat Upper
	Nordland	Cenozoic	1005.000	978.651	BGS LithoStrat Upper
	Hordaland	Cenozoic	1482.000	1455.355	BGS LithoStrat Upper
	Balder	Cenozoic	2597.000	2568.331	BGS LithoStrat Upper
	Balder	Cenozoic	2597.000	2568.331	BGS LithoStrat Upper
	Sele	Mesozoic	2604.000	2575.294	BGS LithoStrat Upper
	Sele	Mesozoic	2604.000	2575.294	BGS LithoStrat Upper
	Forties	Mesozoic	2659.000	2630.009	BGS LithoStrat Upper
	Forties	Mesozoic	2659.000	2630.009	BGS LithoStrat Upper
	Andrew	Cenozoic	2772.000	2742.493	BGS LithoStrat Upper
	Andrew	Cenozoic	2772.000	2742.493	BGS LithoStrat Upper
	Maureen	Mesozoic	2821.000	2791.307	BGS LithoStrat Upper
	Maureen	Mesozoic	2821.000	2791.307	BGS LithoStrat Upper
	Tor	Mesozoic	2869.000	2839.201	BGS LithoStrat Upper
	Chalk	Mesozoic	2869.000	2839.201	BGS LithoStrat Upper
	Tor	Mesozoic	2871.000	2841.197	BGS LithoStrat Upper
23/26a- 19Y	Balder	Cenozoic	3016.000	2951.166	Lloyds Register
	Balder Tuff	Cenozoic	3016.000	2951.166	Lloyds Register
	Moray	Mesozoic	3016.000	2951.166	Lloyds Register
	Sele	Mesozoic	3029.000	2964.163	Lloyds Register
	Forties Sandstone	Mesozoic	3039.000	2974.162	Lloyds Register
	Lista	Mesozoic	3257.000	3192.139	Lloyds Register
	Montrose	Mesozoic	3257.000	3192.139	Lloyds Register
	Balmoral Sandstone	Cenozoic	3272.000	3207.135	Lloyds Register
	Maureen	Mesozoic	3289.000	3224.132	Lloyds Register
	Ekofisk	Mesozoic	3368.000	3303.111	Lloyds Register
	Chalk	Mesozoic	3368.000	3303.111	Lloyds Register
	Upper Cretaceous Chalk	Mesozoic	3451.000	3386.074	Lloyds Register
	Rodby	Mesozoic	4228.000	4161.874	Lloyds Register
	Cromer Knoll	Mesozoic	4228.000	4161.874	Lloyds Register
	Sola		4400.000	4333.845	Lloyds Register
	Valhall	Mesozoic	4464.000	4397.807	Lloyds Register
	Kimmeridge Clay		4683.000	4616.411	Lloyds Register
	Humber	Mesozoic	4683.000	4616.411	Lloyds Register
23/26a- 19Z	Unknown		115.000	89.000	BGS LithoStrat Upper
	Nordland	Cenozoic	1039.000	1012.626	BGS LithoStrat Upper
	Hordaland	Cenozoic	1505.000	1473.360	BGS LithoStrat Upper
	Balder	Cenozoic	3017.000	2952.165	BGS LithoStrat Upper
	Balder	Cenozoic	3017.000	2952.165	BGS LithoStrat Upper
	Sele	Mesozoic	3029.000	2964.163	BGS LithoStrat Upper
	Sele	Mesozoic	3029.000	2964.163	BGS LithoStrat Upper
	Forties	Mesozoic	3039.000	2974.162	BGS LithoStrat Upper
	Forties	Mesozoic	3039.000	2974.162	BGS LithoStrat Upper
	Andrew	Cenozoic	3259.000	3194.138	BGS LithoStrat Upper
	Andrew	Cenozoic	3259.000	3194.138	BGS LithoStrat Upper
	Maureen	Mesozoic	3289.000	3224.132	BGS LithoStrat Upper
	Maureen	Mesozoic	3289.000	3224.132	BGS LithoStrat Upper
	Ekofisk	Mesozoic	3368.000	3303.111	BGS LithoStrat Upper
	Chalk	Mesozoic	3368.000	3303.111	BGS LithoStrat Upper
	Tor	Mesozoic	3451.000	3386.074	BGS LithoStrat Upper
	Tor	Mesozoic	3451.000	3386.074	BGS LithoStrat Upper
	Hod	Mesozoic	3927.000	3860.743	BGS LithoStrat Upper
	Hod	Mesozoic	3927.000	3860.743	BGS LithoStrat Upper
	Hod	Mesozoic	3955.000	3888.501	BGS LithoStrat Upper
	Hod	Mesozoic	4037.000	3969.938	BGS LithoStrat Upper
	Herring	Mesozoic	4134.000	4066.443	BGS LithoStrat Upper
	Herring	Mesozoic	4134.000	4066.443	BGS LithoStrat Upper
	Herring	Mesozoic	4156.000	4088.355	BGS LithoStrat Upper
	Herring	Mesozoic	4165.000	4097.331	BGS LithoStrat Upper
	Herring	Mesozoic	4219.000	4151.183	BGS LithoStrat Upper
	Cromer Knoll	Mesozoic	4233.000	4165.145	BGS LithoStrat Upper
	Rodby	Mesozoic	4233.000	4165.145	BGS LithoStrat Upper
	Rodby	Mesozoic	4240.000	4172.126	BGS LithoStrat Upper
	Rodby	Mesozoic	4402.000	4333.804	BGS LithoStrat Upper
	Rodby	Mesozoic	4411.000	4342.791	BGS LithoStrat Upper
	Sola Formation		4414.000	4345.787	BGS LithoStrat Upper
	Sola Formation		4414.000	4345.787	BGS LithoStrat Upper
	Sola Formation		4423.000	4354.773	BGS LithoStrat Upper
	Sola Formation		4456.000	4387.719	BGS LithoStrat Upper
	Valhall	Mesozoic	4480.000	4411.679	BGS LithoStrat Upper
	Valhall	Mesozoic	4481.000	4412.677	BGS LithoStrat Upper

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	Cuttings
23/26a- 19	0	0	0	10	17	0	1	View
23/26a- 19Y	5	10	3	32	18	2	1	View
23/26a- 19Z	0	0	0	26	37	0	1	View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (3)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
23/26a- 19	Cuttings	1009.0	2935.0	--	--	--
23/26a- 19Y	Cuttings	3622.0	5100.0	--	--	--
23/26a- 19Z	Cuttings	1068.0	4505.0	--	--	--

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Ingested
23/26a- 19	64.31279754638672	2934.3095703125	5	2026-08-06 12:24:30.515545+00	View Log
23/26a- 19Y	3328.12939453125	5084.38720703125	8	2026-08-06 18:03:19.29793+00	View Log
23/26a- 19Z	772.315185546875	4501.0859375	9	2026-08-06 18:03:21.80176+00	View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

23/26a- 19

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
caliper	CAL	CGG Digital Well Logs	993.0384	2920.8984	12651
comp_sonic	AC	CGG Digital Well Logs	1001.4204	2928.0612	12643
deep_resistivity	RILD	CGG Digital Well Logs	995.0196	2932.176	12712
gamma_ray	GR	CGG Digital Well Logs	64.3128	2922.27	18754
med_resistivity	RILM	CGG Digital Well Logs	994.7148	2934.3096	12728

23/26a- 19Y

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	ZDEN	CGG Digital Well Logs	3498.665	5075.3954	8608
caliper	CAL	CGG Digital Well Logs	3498.5126	5075.3954	9305
comp_sonic	AC	CGG Digital Well Logs	3498.9698	5084.387	9503
density_correction	ZCOR	CGG Digital Well Logs	3498.9698	5075.243	8596
gamma_ray	GR	CGG Digital Well Logs	3328.1294	5066.5562	11408
med_resistivity	RIPM	CGG Digital Well Logs	4622.0054	5097.9506	3110
med_resistivity	RILM	CGG Digital Well Logs	3500.189	4495.8182	6534
neutron_por	CNC	CGG Digital Well Logs	4620.0242	5069.7566	2799
pef	PE	CGG Digital Well Logs	3498.665	5075.243	8599
potassium	K	CGG Digital Well Logs	4720.151	5066.4038	2273
thorium	TH	CGG Digital Well Logs	4720.151	5066.4038	2273
uranium	URAN	CGG Digital Well Logs	4720.151	5066.4038	2273

23/26a- 19Z

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	ZDEN	CGG Digital Well Logs	996.0384	3488.8452	16358
caliper	CAL	CGG Digital Well Logs	996.0384	3488.8452	16358
comp_sonic	AC	CGG Digital Well Logs	995.5812	3498.9036	16427
deep_resistivity	RESD	CGG Digital Well Logs	996.8004	4501.086	21960
deep_resistivity	RILD	CGG Digital Well Logs	996.8004	3504.8472	16458
density_correction	ZCOR	CGG Digital Well Logs	996.0384	3488.8452	16358
gamma_ray	GR	CGG Digital Well Logs	772.3152	4497.7332	23352
med_resistivity	RILM	CGG Digital Well Logs	996.648	3505.914	16466
med_resistivity	ATR	CGG Digital Well Logs	3600.0972	4501.086	4993
med_resistivity	PSR	CGG Digital Well Logs	3600.0972	4501.086	5502
neutron_por	CNC	CGG Digital Well Logs	2950.5684	3493.1124	3561
pef	PE	CGG Digital Well Logs	996.0384	3488.8452	16358

Survey Inventory (Deviation)

Open full Survey detail

Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
23/26a- 19	420	2937.960	2908.081	D:\BigSpatial\nsta_raw\CGG_Deviation\23-26a-19 17649ab_CGG-Deviation.xlsx
23/26a- 19Y	1793	5099.940	5030.778	D:\BigSpatial\nsta_raw\CGG_Deviation\23-26a-19Y 17860cq_CGG-Deviation.xlsx
23/26a- 19Z	1401	4504.950	4436.588	D:\BigSpatial\nsta_raw\CGG_Deviation\23-26a-19Z 17700ae_CGG-Deviation.xlsx

23/26a- 19

Well Header

Wellbores (3)

Formation Tops (72)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (0)

Rock Samples (3)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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