Well Data Manager / Well Summary / 16/26-A4

16/26-A4

Present

Well Header

Well No
16/26-A4
NSTA DEN No
4900
Well Name
--
Drill Seq No
4
Quadrant / Block
16 / 26
Surface Location
58.058180, 1.079341
Source Datum
ED50
Subsea Well
Unknown
Platform
A
Slot No
5
Operator
ITHACA OIL AND GAS LIMITED
Original Operator
--
Sub Area Operator
ITHACA OIL AND GAS LIMITED
Licence No
P213
Licence Type
Production
Spud Date
1992-06-29
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (4)

16/26-A4 Original
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Injector
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
59.741
Ground Elev (m)
--
Water Depth (m)
138.07
TD MD (m)
3897.173
TD TVDSS (m)
0.000
TD Datum Depth (m)
59.741
TD Datum Type
Kelly Bushing
Spud Date
1992-06-29
TD Reached
1992-12-14
Completion Date
1994-01-22
Release Date
1998-01-22
16/26-A4X Sidetrack X parent: 16/26-A4Y
Completed (Operating) View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Injector
Convention
--
Primary Target
Y
Well Seq
WB4
Datum Type
Kelly Bushing
Datum Elev (m)
60.350
Ground Elev (m)
--
Water Depth (m)
138.07
TD MD (m)
3714.598
TD TVDSS (m)
-1959.559
TD Datum Depth (m)
60.350
TD Datum Type
Kelly Bushing
Spud Date
2004-07-02
TD Reached
2004-08-02
Completion Date
2004-08-17
Release Date
2008-08-17
16/26-A4Y Sidetrack Y parent: 16/26-A4Z
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
--
Dev Type
Injector
Convention
--
Primary Target
Y
Well Seq
WB3
Datum Type
Kelly Bushing
Datum Elev (m)
60.350
Ground Elev (m)
--
Water Depth (m)
138.07
TD MD (m)
3642.360
TD TVDSS (m)
1931.518
TD Datum Depth (m)
60.350
TD Datum Type
Kelly Bushing
Spud Date
2004-06-15
TD Reached
2004-07-03
Completion Date
2004-07-03
Release Date
2008-07-03
16/26-A4Z Sidetrack Z parent: 16/26-A4
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Injector
Convention
--
Primary Target
--
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
59.741
Ground Elev (m)
--
Water Depth (m)
138.07
TD MD (m)
3757.574
TD TVDSS (m)
2049.170
TD Datum Depth (m)
59.741
TD Datum Type
Kelly Bushing
Spud Date
1992-12-21
TD Reached
1992-12-26
Completion Date
2004-06-15
Release Date
2008-06-15

Formation Tops (0)

No formation tops ingested for this well.

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
16/26-A4 0 0 0 0 0 0 0 1 0 View
16/26-A4X 0 0 0 0 0 0 0 1 0 View
16/26-A4Y 0 0 0 0 0 0 0 1 0 View
16/26-A4Z 0 0 0 0 0 0 0 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (4)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
16/26-A4 Cuttings 1341.12 3950.21 -- -- .
16/26-A4X Cuttings 3627.12 3714.6 -- -- set D
16/26-A4Y Cuttings 3398.52 3642.36 -- -- set D
16/26-A4Z Cuttings 3145.54 3721.61 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
16/26-A4 3092.8056640625 3897.1728515625 6 0 2026-08-06 09:27:47.5246+00 View Log
16/26-A4X 3375.05029296875 3605.631591796875 4 0 2026-08-06 09:27:55.54947+00 View Log
16/26-A4Y 3375.05029296875 3635.806884765625 4 0 2026-08-06 09:27:55.687738+00 View Log
16/26-A4Z 3078.784912109375 3708.958740234375 6 0 2026-08-06 09:27:55.900797+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
16/26-A4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 3092.8056 3897.1728000000003 5279
deep_resistivity RES_DEP OGA Batch Unzipped 3101.6448 3897.1728000000003 5221
density_correction DENC OGA Batch Unzipped 3092.8056 3897.1728000000003 5279
gamma_ray GR OGA Batch Unzipped 3100.1208 3897.1728000000003 5231
med_resistivity RES_MED OGA Batch Unzipped 3101.6448 3897.1728000000003 5221
neutron_por NEU OGA Batch Unzipped 3094.6344000000004 3897.1728000000003 5267
16/26-A4X
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
deep_resistivity RES_DEP OGA Batch Unzipped 3375.0504 3604.7172 1507
gamma_ray GR OGA Batch Unzipped 3376.2696 3605.6316 1506
med_resistivity RES_MED OGA Batch Unzipped 3375.0504 3604.7172 1507
shallow_resistivity RES_SLW OGA Batch Unzipped 3375.0504 3604.7172 1507
16/26-A4Y
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
deep_resistivity RES_DEP OGA Batch Unzipped 3375.0504 3634.8924 1706
gamma_ray GR OGA Batch Unzipped 3376.2696 3635.8068000000003 1704
med_resistivity RES_MED OGA Batch Unzipped 3375.0504 3634.8924 1706
shallow_resistivity RES_SLW OGA Batch Unzipped 3375.0504 3634.8924 1706
16/26-A4Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 3078.7848000000004 3700.7292 4082
deep_resistivity RES_DEP OGA Batch Unzipped 3081.2232000000004 3708.9588000000003 4120
density_correction DENC OGA Batch Unzipped 3078.7848000000004 3700.7292 4082
gamma_ray GR OGA Batch Unzipped 3079.6992 3707.7396000000003 4122
med_resistivity RES_MED OGA Batch Unzipped 3081.2232000000004 3708.9588000000003 4120
neutron_por NEU OGA Batch Unzipped 3078.7848000000004 3702.558 4094

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
16/26-A4 761 3992.270 2036.803 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4\WELL_PATH\WDD_QC\16_26-A4_wdd_WDD_FILE_1915275_DATACO_MAPPED.csv
16/26-A4 381 3956.914 2010.324 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4\WELL_PATH\WDD_QC\16_26-A4_wdd_WDD_FILE_237235840_DATACO_MAPPED.csv
16/26-A4X 392 3714.598 1960.063 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4X\WELL_PATH\WDD_QC\16_26-A4X_wdd_WDD_FILE_237235849_DATACO_MAPPED.csv
16/26-A4Y 388 3642.360 1931.535 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4Y\WELL_PATH\WDD_QC\16_26-A4Y_wdd_WDD_FILE_237235852_DATACO_MAPPED.csv
16/26-A4Z 424 3757.574 2027.900 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4Z\WELL_PATH\WDD_QC\16_26-A4Z_wdd_WDD_FILE_1915276_DATACO_MAPPED.csv
16/26-A4Z 424 3722.218 1992.654 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_26-A4Z\WELL_PATH\WDD_QC\16_26-A4Z_wdd_WDD_FILE_237235855_DATACO_MAPPED.csv

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