Well Data Manager / Well Summary / 211/26-A12

211/26-A12

CA35

Present

Well Header

Well No

211/26-A12

NSTA DEN No

2108

Well Name

CA35

Drill Seq No

Quadrant / Block

211 / 26

Surface Location

61.102154, 1.071082

Source Datum

ED50

Subsea Well

Platform

Slot No

A-35

Operator

TAQA BRATANI LIMITED

Original Operator

Sub Area Operator

TAQA BRATANI LIMITED

Licence No

P232

Licence Type

Production

Spud Date

1983-03-29

Source File

nsta_feature_service

Imported

2026-05-22 15:28

Wellbores (2)

211/26-A12 Original

Abandoned Phase 2 View Log Interpreted Data Survey

Current Intent

Development

Original Intent

Development

Flow Class

Dev Type

Producer

Convention

Primary Target

Well Seq

WB1

Datum Type

Kelly Bushing

Datum Elev (m)

47.549

Ground Elev (m)

Water Depth (m)

152.10

TD MD (m)

3391.205

TD TVDSS (m)

2936.443

TD Datum Depth (m)

47.549

TD Datum Type

Kelly Bushing

Spud Date

1983-03-29

TD Reached

1983-05-03

Completion Date

1983-05-09

Release Date

1987-05-09

211/26-A12Z Sidetrack Z parent: 211/26-A12

Abandoned Phase 2 View Log Interpreted Data Survey

Current Intent

Development

Original Intent

Development

Flow Class

Oil Well

Dev Type

Producer

Convention

Primary Target

Well Seq

WB2

Datum Type

Kelly Bushing

Datum Elev (m)

47.549

Ground Elev (m)

Water Depth (m)

152.10

TD MD (m)

4308.653

TD TVDSS (m)

3362.432

TD Datum Depth (m)

47.549

TD Datum Type

Kelly Bushing

Spud Date

1983-05-09

TD Reached

1983-05-23

Completion Date

1983-08-11

Release Date

1987-08-11

Formation Tops (23)

Wellbore	Formation	Era	MD (m)	TVDSS (m)	Provider
211/26-A12	Lower Heather		3292.000	2804.215	BGS LithoStrat Upper
	Upper Ness Member	Mesozoic	3313.000	2822.691	BGS LithoStrat Upper
	Middle Ness	Mesozoic	3321.000	2829.860	BGS LithoStrat Upper
	Lower Ness Member	Mesozoic	3327.000	2835.223	BGS LithoStrat Upper
	Etive	Mesozoic	3343.000	2849.529	BGS LithoStrat Upper
	Rannoch	Mesozoic	3368.000	2871.929	BGS LithoStrat Upper
	Broom	Mesozoic	3384.000	2886.304	BGS LithoStrat Upper
	Drake	Mesozoic	3398.000	2898.945	BGS LithoStrat Upper
	Cook	Mesozoic	3405.000	2905.268	BGS LithoStrat Upper
	Burton	Mesozoic	3420.000	2918.847	BGS LithoStrat Upper
211/26-A12Z	Unknown		3622.000	2842.999	BGS LithoStrat Upper
	Upper Ness Member	Mesozoic	3675.000	2877.484	BGS LithoStrat Upper
	Middle Ness	Mesozoic	3704.000	2896.574	BGS LithoStrat Upper
	Lower Ness Member	Mesozoic	3715.000	2903.877	BGS LithoStrat Upper
	Etive	Mesozoic	3735.000	2917.295	BGS LithoStrat Upper
	Rannoch	Mesozoic	3769.000	2940.334	BGS LithoStrat Upper
	Broom	Mesozoic	3799.000	2960.960	BGS LithoStrat Upper
	Drake	Mesozoic	3818.000	2974.167	BGS LithoStrat Upper
	Cook	Mesozoic	3828.000	2981.177	BGS LithoStrat Upper
	Burton	Mesozoic	3849.000	2996.098	BGS LithoStrat Upper
	Amundsen		3879.000	3018.035	BGS LithoStrat Upper
	Statfjord	Mesozoic	3904.000	3036.788	BGS LithoStrat Upper
	Cormorant	Mesozoic	3911.000	3042.110	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	Core	Cuttings	DSTs
211/26-A12	0	0	0	10	10	0	4	0	0	View
211/26-A12Z	0	0	0	13	13	0	10	0	0	View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (14)

Wellbore	Sample	Top MD (m)	Base MD (m)	Key Lab Results	Comments	Notes
211/26-A12	Core #1	3329.33	3338.78	--	--	came in 211 26 A35 .
211/26-A12	Core #2	3338.78	3366.0	--	--	.
211/26-A12	Core #3	3366.21	3392.73	--	--	.
211/26-A12	Core #4	3393.64	3421.08	--	--	.
211/26-A12Z	Core #1	3693.57	3705.85	--	--	.
211/26-A12Z	Core #2	3706.98	3717.52	--	--	.
211/26-A12Z	Core #3	3717.52	3720.82	--	--	.
211/26-A12Z	Core #4	3721.0	3732.4	--	--	.
211/26-A12Z	Core #5	3731.67	3737.76	--	--	.
211/26-A12Z	Core #6	3737.76	3758.18	--	--	.
211/26-A12Z	Core #7	3758.18	3777.08	--	--	.
211/26-A12Z	Core #8	3777.08	3804.51	--	--	.
211/26-A12Z	Core #9	3804.51	3830.36	--	--	.
211/26-A12Z	Core #10	3962.4	3987.58	--	--	.

Wireline Log Inventory (Ingested Curves)

Wellbore	Depth Start (m)	Depth Stop (m)	Typed Curves	Auto-scaled	Ingested
211/26-A12	250.54559326171875	3622.2431640625	11	0	2026-08-06 11:25:35.940877+00	View Log
211/26-A12Z	3382.060791015625	4317.4921875	8	0	2026-08-06 11:25:40.742844+00	View Log

Source LAS Manifest (Best Curve per Type)

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211/26-A12

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	DEN	OGA Batch Unzipped	3082.29	3608.6796000000004	3455
bulk_density	CDEN	Energective CorrectedLOGS	3277.8192000000004	3438.906	1058
caliper	CALI	OGA Batch Unzipped	250.5456	3620.8716000000004	22116
caliper	CLD	Energective CorrectedLOGS	250.5456	3438.906	3537
comp_sonic	DTC	Energective CorrectedLOGS	261.2136	3431.286	11544
comp_sonic	DT	OGA Batch Unzipped	1892.808	3617.976	11321
deep_resistivity	CRSD	Energective CorrectedLOGS	3302.5080000000003	3435.2484	872
deep_resistivity	ILD	Energective CorrectedLOGS	250.5456	3129.9912	10751
deep_resistivity	RES_DEP	OGA Batch Unzipped	2895.9048000000003	3622.2432000000003	4767
density_correction	CDRH	Energective CorrectedLOGS	3278.2764	3438.906	1055
density_correction	DENC	OGA Batch Unzipped	3082.1376	3623.1576	3551
gamma_ray	GRI	Energective CorrectedLOGS	250.5456	3434.0292	12802
gamma_ray	GR	OGA Batch Unzipped	250.5456	3611.7276	22056
med_resistivity	RES_MED	OGA Batch Unzipped	2895.9048000000003	3622.2432000000003	4767
neutron_por	CNEU	Energective CorrectedLOGS	3277.9716000000003	3435.2484	1033
neutron_por	NEU	OGA Batch Unzipped	3082.1376	3620.8716000000004	3536
shallow_resistivity	SFL	Energective CorrectedLOGS	261.8232	644.3472	2511
sp	SP	Energective CorrectedLOGS	263.3472	3123.438	10801
tvdss	SS	Energective CorrectedLOGS	250.5456	3439.0584000000003	20923
vshale	VSGR	Energective CorrectedLOGS	263.4996	3433.7244	12512
vshale	VSH	Energective CorrectedLOGS	263.4996	3433.7244	12520

211/26-A12Z

Curve Type	Best Mnemonic	Source	Depth Start (m)	Depth Stop (m)	Samples
bulk_density	DEN	OGA Batch Unzipped	3382.9752000000003	4317.492	6133
bulk_density	LDL	Energective CorrectedLOGS	3382.9752000000003	4317.492	6133
caliper	CLD	Energective CorrectedLOGS	3382.9752000000003	4317.492	6133
caliper	CALI	OGA Batch Unzipped	3382.9752000000003	4317.492	6133
comp_sonic	DT	OGA Batch Unzipped	2534.2596000000003	4875.1236	15361
comp_sonic	DTC	Energective CorrectedLOGS	3388.9188000000004	4311.7008000000005	6054
deep_resistivity	LLD	Energective CorrectedLOGS	3630.0156	4306.3668	4439
deep_resistivity	RES_DEP	OGA Batch Unzipped	3562.5024000000003	4315.968	4945
density_correction	DENC	OGA Batch Unzipped	3382.9752000000003	4317.492	6133
density_correction	DRH	Energective CorrectedLOGS	3382.9752000000003	4317.492	6133
gamma_ray	GR	OGA Batch Unzipped	3382.0608	4317.492	6139
gamma_ray	GRI	Energective CorrectedLOGS	3382.0608	4308.8052	6082
neutron_por	NEU	OGA Batch Unzipped	3610.0512000000003	4317.1872	4641
neutron_por	CNLC	Energective CorrectedLOGS	3610.0512000000003	4304.8428	4560
tvdss	SS	Energective CorrectedLOGS	3382.0608	4317.7968	6141
vshale	VSGR	Energective CorrectedLOGS	3385.8708	4308.6528	6056
vshale	VSH	Energective CorrectedLOGS	3385.8708	4308.6528	6056

Survey Inventory (Deviation)

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Wellbore	Stations	Max MD (m)	Max TVDSS (m)	Survey File
211/26-A12	322	3438.754	2935.881	G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_26-A12\WELL_PATH\WDD_QC\211_26-A12_wdd_WDD_FILE_1673993_DATACO_MAPPED.csv
211/26-A12Z	351	4312.615	3361.936	G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_26-A12Z\WELL_PATH\WDD_QC\211_26-A12Z_wdd_WDD_FILE_1673994_DATACO_MAPPED.csv

211/26-A12

Well Header

Wellbores (2)

Formation Tops (23)

Lithology Intervals

Interpreted Data Inventory (LR / WellStrat)

Hydrocarbon Occurrence (0)

Rock Samples (14)

Wireline Log Inventory (Ingested Curves)

Source LAS Manifest (Best Curve per Type)

Survey Inventory (Deviation)

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