Well Data Manager / Well Summary / 9/23a- 23

9/23a- 23

Decommissioned

Well Header

Well No
9/23a- 23
NSTA DEN No
4157
Well Name
--
Drill Seq No
23
Quadrant / Block
9 / 23 a
Surface Location
59.220061, 1.574080
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Licence No
P257
Licence Type
Production
Spud Date
1990-08-17
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

9/23a- 23 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
114.00
TD MD (m)
2585.314
TD TVDSS (m)
2560.180
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1990-08-17
TD Reached
1990-09-10
Completion Date
1990-09-10
Release Date
1994-09-10

Formation Tops (6)

Wellbore Formation Era MD (m) TVDSS (m) Provider
9/23a- 23 Caran Sst 1082.000 1056.948 Ternan
Odin Sst Cenozoic 1817.000 1791.938 Ternan
Odin Sst Cenozoic 1817.000 1791.938 Ternan
Hermod Sst 1930.000 1904.933 Ternan
Maureen Sst Mesozoic 2435.000 2409.878 Ternan
Shetland Mesozoic 2545.000 2519.854 Ternan

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
9/23a- 23 0 0 0 15 6 0 2 1 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
9/23a- 23 Oil shows OS HUCF 1200.3024 -- 613 m thick
9/23a- 23 Oil shows OS Balder Formation 1816.6080000000002 -- 6 m thick

Rock Samples (3)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
9/23a- 23 Cuttings 393.19 2585.31 -- -- .
9/23a- 23 Core #1 1819.96 1837.03 -- -- .
9/23a- 23 Core #2 1838.55 1856.84 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
9/23a- 23 130.60679626464844 2587.294921875 15 0 2026-08-06 16:07:19.870377+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
9/23a- 23
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
apparent_water_resistivity RWA Energective CorrectedLOGS 415.1376 2575.4076 3837
bulk_density CDEN Energective CorrectedLOGS 1224.9912000000002 2587.2948 8937
bulk_density RHOB CGG Digital Well Logs 1214.1708 2581.1988 8971
bulk_density DEN OGA Batch Unzipped 1212.0372 2587.2948 9022
caliper CALI CGG Digital Well Logs 377.19 2581.3512 14384
caliper CLD Energective CorrectedLOGS 379.0188 2566.7208 14281
comp_sonic DTC Energective CorrectedLOGS 389.8392 2570.8356000000003 14295
comp_sonic DT CGG Digital Well Logs 377.3424 2570.0736 14353
deep_resistivity RES_DEP OGA Batch Unzipped 377.952 2584.0944 14471
deep_resistivity ILD Energective CorrectedLOGS 389.382 2580.7416000000003 14374
density_correction DRHO CGG Digital Well Logs 1214.6280000000002 2581.1988 8968
density_correction CDRH Energective CorrectedLOGS 1214.3232 2585.3136 8997
gamma_ray CGR CGG Digital Well Logs 1212.0372 2572.3596000000002 8927
gamma_ray GR CGG Digital Well Logs 129.08280000000002 2572.2072000000003 16032
gamma_ray GRI Energective CorrectedLOGS 130.6068 2575.7124000000003 15945
gamma_ray SGR CGG Digital Well Logs 1212.0372 2572.3596000000002 8927
med_resistivity RES_MED OGA Batch Unzipped 377.952 2584.0944 14471
med_resistivity ILM Energective CorrectedLOGS 386.4864 2580.132 14389
micro_resistivity RES_MIC OGA Batch Unzipped 130.6068 1222.4004 7162
neutron_por NPHI CGG Digital Well Logs 1214.0184000000002 2576.0172000000002 8938
neutron_por CNEU Energective CorrectedLOGS 1212.0372 2581.3512 8983
neutron_por NEU OGA Batch Unzipped 1212.0372 2587.2948 9022
pef PEF OGA Batch Unzipped 1212.0372 2587.2948 9022
pef CPEF Energective CorrectedLOGS 1224.534 2585.3136 8927
porosity POR Energective CorrectedLOGS 386.4864 2575.4076 14356
potassium POTA CGG Digital Well Logs 1212.0372 2572.3596000000002 8927
shallow_resistivity SFL Energective CorrectedLOGS 388.1628 1219.2 5454
shallow_resistivity SFLU CGG Digital Well Logs 378.1044 1218.7428 5517
sp SP Energective CorrectedLOGS 376.428 2584.0944 14486
thorium THOR CGG Digital Well Logs 1212.0372 2572.3596000000002 8927
tvdss SS Energective CorrectedLOGS 130.4544 2587.4472 16123
uranium URAN CGG Digital Well Logs 1212.0372 2572.3596000000002 8927
vshale VSH Energective CorrectedLOGS 130.6068 2575.4076 16043
vshale VSGR Energective CorrectedLOGS 130.6068 2575.4076 15943
water_sat SW Energective CorrectedLOGS 386.4864 2575.4076 14356
water_sat_xo SXO Energective CorrectedLOGS 386.4864 2575.4076 14356

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
9/23a- 23 58 2585.314 2560.161 D:\BigSpatial\nsta_raw\CGG_Deviation\9-23a-23 11888p-CGG_Deviation.xlsx

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