Well Data Manager / Well Summary / 21/23b- 2

21/23b- 2

Decommissioned

Well Header

Well No
21/23b- 2
NSTA DEN No
2270
Well Name
--
Drill Seq No
2
Quadrant / Block
21 / 23 b
Surface Location
57.286670, 0.429940
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
SHELL U.K. LIMITED
Original Operator
--
Sub Area Operator
SHELL U.K. LIMITED
Licence No
P353
Licence Type
Production
Spud Date
1983-12-12
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

21/23b- 2 Original
Abandoned Phase 3 Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
F
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
86.87
TD MD (m)
3419.246
TD TVDSS (m)
0.000
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1983-12-12
TD Reached
1983-12-14
Completion Date
1983-12-14
Release Date
1987-12-14
21/23b- 2B Sidetrack B parent: 21/23b- 2
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
F
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
86.87
TD MD (m)
3419.246
TD TVDSS (m)
0.000
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1983-12-19
TD Reached
1984-03-19
Completion Date
1984-03-20
Release Date
1988-03-20

Formation Tops (27)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/23b- 2B Stronsay Cenozoic 1382.000 1356.942 Lloyds Register
Horda Cenozoic 1382.000 1356.942 Lloyds Register
Upper Tay Sandstone 1537.000 1511.924 Lloyds Register
Lower Tay Sandstone 1599.000 1573.920 Lloyds Register
Moray Mesozoic 1604.000 1578.919 Lloyds Register
Forties Sandstone Mesozoic 1604.000 1578.919 Lloyds Register
Sele Mesozoic 1604.000 1578.919 Lloyds Register
Lista Mesozoic 1631.000 1605.916 Lloyds Register
Montrose Mesozoic 1631.000 1605.916 Lloyds Register
Maureen Mesozoic 1697.000 1671.907 Lloyds Register
Ekofisk Mesozoic 1757.000 1731.899 Lloyds Register
Chalk Mesozoic 1757.000 1731.899 Lloyds Register
Upper Cretaceous Chalk Mesozoic 1771.000 1745.898 Lloyds Register
Cromer Knoll Mesozoic 1967.000 1941.876 Lloyds Register
Rodby Mesozoic 1967.000 1941.876 Lloyds Register
Sola 1979.000 1953.875 Lloyds Register
Valhall Mesozoic 2029.000 2003.869 Lloyds Register
Kimmeridge Clay 2105.000 2079.861 Lloyds Register
Humber Mesozoic 2105.000 2079.861 Lloyds Register
Heron Palaeozoic 2162.000 2136.855 Lloyds Register
Skagerrak Mesozoic 2162.000 2136.855 Lloyds Register
Zechstein Palaeozoic 2198.000 2172.852 Lloyds Register
Shearwater Salt 2198.000 2172.852 Lloyds Register
Halibut Carbonate Palaeozoic 3229.000 3201.997 Lloyds Register
Kupferschiefer Palaeozoic 3301.000 3273.775 Lloyds Register
Auk 3302.000 3274.772 Lloyds Register
Rotliegend 3302.000 3274.772 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
21/23b- 2 0 0 0 0 0 0 0 0 0
21/23b- 2B 9 15 3 47 27 2 4 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (5)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/23b- 2B Cuttings 237.74 3444.24 -- -- .
21/23b- 2B Core #2 2170.48 2177.74 -- -- no core 1 .
21/23b- 2B Core #3 2178.71 2182.86 -- -- .
21/23b- 2B Core #4 2186.33 2196.08 -- -- .
21/23b- 2B Core #5 2196.08 2201.81 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/23b- 2B 103.02239990234375 3447.135498046875 9 0 2026-08-06 17:27:58.17432+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/23b- 2B
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN CGG Digital Well Logs 1465.6308000000001 3446.5260000000003 12987
caliper CAL CGG Digital Well Logs 2051.9136000000003 2285.5428 1534
caliper CALI CGG Digital Well Logs 1465.6308000000001 3447.1356 12992
comp_sonic AC CGG Digital Well Logs 220.67520000000002 3446.2212 21015
deep_resistivity RILD CGG Digital Well Logs 220.82760000000002 2052.3708 11928
deep_resistivity RD CGG Digital Well Logs 2052.0660000000003 3443.478 3236
density_correction CORR CGG Digital Well Logs 1465.7832 3446.6784000000002 12987
gamma_ray GRD CGG Digital Well Logs 2048.2560000000003 2269.998 1456
gamma_ray GR CGG Digital Well Logs 103.0224 3441.3444 21797
gamma_ray GRL CGG Digital Well Logs 2045.5128000000002 3447.1356 3383
micro_resistivity RMLL CGG Digital Well Logs 2051.7612 2285.5428 1535
neutron_por CN CGG Digital Well Logs 1465.4784 3443.478 7011
potassium K CGG Digital Well Logs 2048.4084000000003 2270.1504 1456
shallow_resistivity RS CGG Digital Well Logs 2051.9136000000003 3443.478 3237
thorium TH CGG Digital Well Logs 2048.2560000000003 2270.4552000000003 1459

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/23b- 2 3 228.600 203.605 D:\BigSpatial\nsta_raw\CGG_Deviation\21-23b-2 23336b_CGG-Deviation.xlsx
21/23b- 2B 27 3444.240 3416.573 D:\BigSpatial\nsta_raw\CGG_Deviation\21-23b-2B 1705be_CGG-Deviation.xlsx

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