Well Data Manager / Well Summary / 43/25a- 2

43/25a- 2

Decommissioned

Well Header

Well No
43/25a- 2
NSTA DEN No
11657
Well Name
--
Drill Seq No
2
Quadrant / Block
43 / 25 a
Surface Location
54.271940, 1.979066
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
ITHACA ENERGY (UK) LIMITED
Original Operator
--
Sub Area Operator
ITHACA ENERGY (UK) LIMITED
Licence No
P449
Licence Type
Production
Spud Date
2004-12-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (5)

43/25a- 2 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
N
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
42.977
Ground Elev (m)
--
Water Depth (m)
38.71
TD MD (m)
2361.895
TD TVDSS (m)
2318.309
TD Datum Depth (m)
42.977
TD Datum Type
Rotary Table
Spud Date
2004-12-03
TD Reached
2004-12-24
Completion Date
2005-01-16
Release Date
2009-01-16
43/25a- 2W Sidetrack W parent: 43/25a- 2X
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Gas Well
Dev Type
--
Convention
--
Primary Target
NST
Well Seq
WB5
Datum Type
Rotary Table
Datum Elev (m)
42.977
Ground Elev (m)
--
Water Depth (m)
38.71
TD MD (m)
4511.040
TD TVDSS (m)
3952.037
TD Datum Depth (m)
42.977
TD Datum Type
Rotary Table
Spud Date
2005-05-12
TD Reached
2005-05-25
Completion Date
2005-05-29
Release Date
2009-05-29
43/25a- 2X Sidetrack X parent: 43/25a- 2Y
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Gas Well
Dev Type
--
Convention
--
Primary Target
N
Well Seq
WB4
Datum Type
Rotary Table
Datum Elev (m)
42.977
Ground Elev (m)
--
Water Depth (m)
38.71
TD MD (m)
4442.155
TD TVDSS (m)
4213.860
TD Datum Depth (m)
42.977
TD Datum Type
Rotary Table
Spud Date
2005-03-07
TD Reached
2005-04-28
Completion Date
2005-05-12
Release Date
2009-05-12
43/25a- 2Y Sidetrack Y parent: 43/25a- 2Z
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
N
Well Seq
WB3
Datum Type
Rotary Table
Datum Elev (m)
42.977
Ground Elev (m)
--
Water Depth (m)
38.71
TD MD (m)
3764.280
TD TVDSS (m)
3574.390
TD Datum Depth (m)
42.977
TD Datum Type
Rotary Table
Spud Date
2005-02-10
TD Reached
2005-02-27
Completion Date
2005-03-07
Release Date
2009-03-07
43/25a- 2Z Sidetrack Z parent: 43/25a- 2
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
N
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
42.977
Ground Elev (m)
--
Water Depth (m)
38.71
TD MD (m)
2338.426
TD TVDSS (m)
2292.706
TD Datum Depth (m)
42.977
TD Datum Type
Rotary Table
Spud Date
2005-01-16
TD Reached
2005-02-03
Completion Date
2005-02-10
Release Date
2009-02-10

Formation Tops (137)

Wellbore Formation Era MD (m) TVDSS (m) Provider
43/25a- 2 North Sea Group 82.000 39.023 BGS LithoStrat Upper
Chalk Mesozoic 276.000 233.022 BGS LithoStrat Upper
Red Chalk Mesozoic 902.000 859.002 BGS LithoStrat Upper
Lias Mesozoic 912.000 869.001 BGS LithoStrat Upper
Winterton 1058.000 1014.999 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1082.000 1038.998 BGS LithoStrat Upper
Keuper Anhydrite Member Mesozoic 1099.000 1055.997 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1148.000 1104.995 BGS LithoStrat Upper
Dudgeon Saliferous 1220.000 1176.990 BGS LithoStrat Upper
Dowsing Dolomite 1338.000 1294.978 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1404.000 1360.968 BGS LithoStrat Upper
Dowsing Dolomite 1447.000 1403.961 BGS LithoStrat Upper
Rot Halite Member 1596.000 1552.926 BGS LithoStrat Upper
Solling Claystone Member Cenozoic 1710.000 1666.875 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1729.000 1685.865 BGS LithoStrat Upper
Bunter Shale Mesozoic 1923.000 1879.760 BGS LithoStrat Upper
Brockelschiefer Member 2284.000 2240.471 BGS LithoStrat Upper
Aller Halite Palaeozoic 2306.000 2262.444 BGS LithoStrat Upper
43/25a- 2W North Sea Group 82.000 39.023 BGS LithoStrat Upper
Chalk Mesozoic 276.000 233.022 BGS LithoStrat Upper
Chalk Mesozoic 857.000 814.000 BGS LithoStrat Upper
Red Chalk Mesozoic 902.000 858.893 BGS LithoStrat Upper
Lias Mesozoic 912.000 868.842 BGS LithoStrat Upper
Winterton 1060.000 1015.516 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1084.000 1039.306 BGS LithoStrat Upper
Keuper Anhydrite Member Mesozoic 1102.000 1057.156 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1152.000 1106.797 BGS LithoStrat Upper
Dudgeon Saliferous 1223.000 1177.506 BGS LithoStrat Upper
Dowsing Dolomite 1341.000 1295.365 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1408.000 1362.360 BGS LithoStrat Upper
Dowsing Dolomite 1450.000 1404.358 BGS LithoStrat Upper
Rot Halite Member 1599.000 1553.352 BGS LithoStrat Upper
Solling Claystone Member Cenozoic 1714.000 1668.350 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1734.000 1688.350 BGS LithoStrat Upper
Bunter Shale Mesozoic 1927.000 1881.349 BGS LithoStrat Upper
Brockelschiefer Member 2286.000 2240.338 BGS LithoStrat Upper
Aller Halite Palaeozoic 2308.000 2262.336 BGS LithoStrat Upper
Roter Salzton Palaeozoic 2422.000 2376.243 BGS LithoStrat Upper
Leine Halite Member Palaeozoic 2431.000 2385.223 BGS LithoStrat Upper
Hauptanhydrit Palaeozoic 2953.000 2898.701 BGS LithoStrat Upper
Plattendolomit Equivalent 3051.000 2991.249 BGS LithoStrat Upper
Grauer Salzton Palaeozoic 3062.000 3001.527 BGS LithoStrat Upper
Stassfurt Halite Palaeozoic 3071.000 3009.916 BGS LithoStrat Upper
Basalanhydrit Palaeozoic 3720.000 3537.385 BGS LithoStrat Upper
Hauptdolomit Palaeozoic 3732.000 3546.580 BGS LithoStrat Upper
Werraanhydrit Palaeozoic 3742.000 3554.175 BGS LithoStrat Upper
Zechsteinkalk Palaeozoic 3770.000 3574.835 BGS LithoStrat Upper
Kupferschiefer Palaeozoic 3773.000 3576.986 BGS LithoStrat Upper
Upper Leman Sandstone Fm 3777.000 3579.839 BGS LithoStrat Upper
Silverpit 3784.000 3584.770 BGS LithoStrat Upper
Silverpit Halite Cenozoic 4124.000 3775.800 BGS LithoStrat Upper
Upper Ketch Member 4405.000 3895.526 BGS LithoStrat Upper
Lower Ketch 2 Member 4409.000 3897.318 BGS LithoStrat Upper
43/25a- 2X North Sea Group 82.000 39.023 BGS LithoStrat Upper
Chalk Mesozoic 276.000 233.023 BGS LithoStrat Upper
Chalk Mesozoic 857.000 814.023 BGS LithoStrat Upper
Red Chalk Mesozoic 902.000 859.023 BGS LithoStrat Upper
Lias Mesozoic 912.000 869.023 BGS LithoStrat Upper
Winterton 1060.000 1017.023 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1084.000 1041.023 BGS LithoStrat Upper
Keuper Anhydrite Member Mesozoic 1102.000 1059.023 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1152.000 1109.023 BGS LithoStrat Upper
Dudgeon Saliferous 1223.000 1180.023 BGS LithoStrat Upper
Dowsing Dolomite 1341.000 1298.023 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1408.000 1365.023 BGS LithoStrat Upper
Dowsing Dolomite 1450.000 1407.023 BGS LithoStrat Upper
Rot Halite Member 1599.000 1556.023 BGS LithoStrat Upper
Solling Claystone Member Cenozoic 1714.000 1671.023 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1734.000 1691.023 BGS LithoStrat Upper
Bunter Shale Mesozoic 1927.000 1884.023 BGS LithoStrat Upper
Brockelschiefer Member 2286.000 2243.023 BGS LithoStrat Upper
Aller Halite Palaeozoic 2308.000 2265.023 BGS LithoStrat Upper
Roter Salzton Palaeozoic 2422.000 2379.023 BGS LithoStrat Upper
Leine Halite Member Palaeozoic 2431.000 2388.023 BGS LithoStrat Upper
Hauptanhydrit Palaeozoic 2953.000 2910.023 BGS LithoStrat Upper
Plattendolomit Equivalent 3051.000 3008.023 BGS LithoStrat Upper
Grauer Salzton Palaeozoic 3062.000 3019.023 BGS LithoStrat Upper
Stassfurt Halite Palaeozoic 3071.000 3028.023 BGS LithoStrat Upper
Basalanhydrit Palaeozoic 3720.000 3677.023 BGS LithoStrat Upper
Hauptdolomit Palaeozoic 3731.000 3688.023 BGS LithoStrat Upper
Werraanhydrit Palaeozoic 3745.000 3702.023 BGS LithoStrat Upper
Zechsteinkalk Palaeozoic 3774.000 3731.023 BGS LithoStrat Upper
Kupferschiefer Palaeozoic 3776.000 3733.023 BGS LithoStrat Upper
Upper Leman Sandstone Fm 3780.000 3737.023 BGS LithoStrat Upper
Silverpit 3786.000 3743.023 BGS LithoStrat Upper
Silverpit Halite Cenozoic 4003.000 3960.023 BGS LithoStrat Upper
Upper Ketch Member 4127.000 4084.023 BGS LithoStrat Upper
Lower Ketch 2 Member 4172.000 4129.023 BGS LithoStrat Upper
Lower Ketch 1 Member 4234.000 4191.023 BGS LithoStrat Upper
Upper Cleaver Member Cenozoic 4301.000 4258.023 BGS LithoStrat Upper
Aegiranum Marine Band 4385.000 4342.023 BGS LithoStrat Upper
Lower Cleaver Member Cenozoic 4396.000 4353.023 BGS LithoStrat Upper
43/25a- 2Y North Sea Group 82.000 39.023 BGS LithoStrat Upper
Chalk Mesozoic 276.000 233.022 BGS LithoStrat Upper
Chalk Mesozoic 857.000 814.000 BGS LithoStrat Upper
Red Chalk Mesozoic 902.000 858.893 BGS LithoStrat Upper
Lias Mesozoic 912.000 868.842 BGS LithoStrat Upper
Winterton 1060.000 1015.516 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1084.000 1039.306 BGS LithoStrat Upper
Keuper Anhydrite Member Mesozoic 1102.000 1057.156 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1152.000 1106.797 BGS LithoStrat Upper
Dudgeon Saliferous 1223.000 1177.506 BGS LithoStrat Upper
Dowsing Dolomite 1341.000 1295.365 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1408.000 1362.360 BGS LithoStrat Upper
Dowsing Dolomite 1450.000 1404.358 BGS LithoStrat Upper
Rot Halite Member 1599.000 1553.352 BGS LithoStrat Upper
Solling Claystone Member Cenozoic 1714.000 1668.350 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1734.000 1688.350 BGS LithoStrat Upper
Bunter Shale Mesozoic 1927.000 1881.349 BGS LithoStrat Upper
Brockelschiefer Member 2286.000 2240.338 BGS LithoStrat Upper
Aller Halite Palaeozoic 2308.000 2262.336 BGS LithoStrat Upper
Roter Salzton Palaeozoic 2423.000 2377.249 BGS LithoStrat Upper
Leine Halite Member Palaeozoic 2431.000 2385.240 BGS LithoStrat Upper
Hauptanhydrit Palaeozoic 3081.000 3028.126 BGS LithoStrat Upper
Stassfurt Halite Palaeozoic 3228.000 3158.777 BGS LithoStrat Upper
Basalanhydrit Palaeozoic 3715.000 3536.304 BGS LithoStrat Upper
Hauptdolomit Palaeozoic 3727.000 3545.499 BGS LithoStrat Upper
Werraanhydrit Palaeozoic 3741.000 3556.305 BGS LithoStrat Upper
43/25a- 2Z North Sea Group 82.000 39.023 BGS LithoStrat Upper
Chalk Mesozoic 276.000 233.022 BGS LithoStrat Upper
Chalk Mesozoic 857.000 814.002 BGS LithoStrat Upper
Red Chalk Mesozoic 902.000 858.893 BGS LithoStrat Upper
Lias Mesozoic 912.000 868.842 BGS LithoStrat Upper
Winterton 1060.000 1015.516 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1084.000 1039.306 BGS LithoStrat Upper
Keuper Anhydrite Member Mesozoic 1102.000 1057.156 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1152.000 1106.797 BGS LithoStrat Upper
Dudgeon Saliferous 1223.000 1177.506 BGS LithoStrat Upper
Dowsing Dolomite 1341.000 1295.365 BGS LithoStrat Upper
Muschelkalk Halite Member Mesozoic 1408.000 1362.360 BGS LithoStrat Upper
Dowsing Dolomite 1450.000 1404.358 BGS LithoStrat Upper
Rot Halite Member 1599.000 1553.352 BGS LithoStrat Upper
Solling Claystone Member Cenozoic 1714.000 1668.350 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1734.000 1688.350 BGS LithoStrat Upper
Bunter Shale Mesozoic 1927.000 1881.349 BGS LithoStrat Upper
Brockelschiefer Member 2286.000 2240.338 BGS LithoStrat Upper
Aller Halite Palaeozoic 2308.000 2262.336 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
43/25a- 2 5 1 0 18 18 0 0 1 0 View
43/25a- 2W 7 6 0 35 35 1 0 0 0 View
43/25a- 2X 7 6 0 39 39 1 0 1 0 View
43/25a- 2Y 5 2 0 26 26 0 0 1 0 View
43/25a- 2Z 5 1 0 19 19 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
43/25a- 2 Cuttings 201.17 2361.9 -- -- set DD
43/25a- 2X Cuttings 2340.86 4442.16 -- -- --
43/25a- 2Y Cuttings 2325.62 3761.23 -- -- part set
43/25a- 2Z Cuttings 856.49 2328.67 -- -- set DD

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
43/25a- 2 28.04159927368164 1007.2116088867188 2 0 2026-08-06 14:10:45.189749+00 View Log
43/25a- 2W 3719.931640625 4507.38232421875 1 0 2026-08-06 14:10:45.69809+00 View Log
43/25a- 2Y 1894.0272216796875 2431.5419921875 1 0 2026-08-06 14:10:46.010493+00 View Log
43/25a- 2Z 725.7288208007812 2316.47998046875 3 0 2026-08-06 14:10:46.278941+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
43/25a- 2
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
comp_sonic DT4P CGG Digital Well Logs 846.2772 1007.2116000000001 1057
comp_sonic DTCO CGG Digital Well Logs 846.2772 1007.2116000000001 1057
gamma_ray GR CGG Digital Well Logs 28.041600000000003 996.5436000000001 6356
shear_sonic DT4S CGG Digital Well Logs 824.9412000000001 1004.6208 649
shear_sonic DTSM CGG Digital Well Logs 824.9412000000001 911.3520000000001 568
43/25a- 2W
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
gamma_ray GRC CGG Digital Well Logs 3719.9316000000003 4507.3824 5168
43/25a- 2Y
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
gamma_ray GR CGG Digital Well Logs 1894.0272 2431.542 3528
43/25a- 2Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
caliper CAL CGG Digital Well Logs 846.1248 2306.4216 9583
comp_sonic DTCO CGG Digital Well Logs 846.1248 2316.48 9649
gamma_ray GR CGG Digital Well Logs 725.7288000000001 2299.1064 10325
shear_sonic DT4S CGG Digital Well Logs 846.8868 2316.48 8278
shear_sonic DTSM CGG Digital Well Logs 846.1248 2316.48 9649

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
43/25a- 2 100 2361.895 2318.216 D:\BigSpatial\nsta_raw\CGG_Deviation\43-25a-2 12281q-CGG-Deviation.xls
43/25a- 2W 201 4511.040 3952.150 D:\BigSpatial\nsta_raw\CGG_Deviation\43-25a-2W 29166m-CGG-Deviation.xls
43/25a- 2X 0 -- -- --
43/25a- 2Y 168 3764.280 3574.475 D:\BigSpatial\nsta_raw\CGG_Deviation\43-25a-2Y 29108j-CGG-Deviation.xls
43/25a- 2Z 101 2338.426 2292.759 D:\BigSpatial\nsta_raw\CGG_Deviation\43-25a-2Z 29076n-CGG-Deviation.xls

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