Well Data Manager / Well Summary / 15/23- 4

15/23- 4

Decommissioned

Well Header

Well No
15/23- 4
NSTA DEN No
966
Well Name
--
Drill Seq No
4
Quadrant / Block
15 / 23
Surface Location
58.307456, 0.430623
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT + ENERGY RESOURCES UK LIMITED
Licence No
P324
Licence Type
Production
Spud Date
1977-02-25
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/23- 4 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.079
Ground Elev (m)
--
Water Depth (m)
144.78
TD MD (m)
4138.270
TD TVDSS (m)
4111.289
TD Datum Depth (m)
24.079
TD Datum Type
Kelly Bushing
Spud Date
1977-02-25
TD Reached
1977-07-25
Completion Date
1977-08-01
Release Date
1981-08-01

Formation Tops (28)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/23- 4 Stronsay Cenozoic 799.000 774.895 Lloyds Register
Horda Cenozoic 887.000 862.891 Lloyds Register
Caran Sanstone 1551.000 1526.848 Lloyds Register
Moray Mesozoic 1808.000 1783.842 Lloyds Register
Balder Cenozoic 1808.000 1783.842 Lloyds Register
Balder Tuff Cenozoic 1831.000 1806.842 Lloyds Register
Sele Mesozoic 1846.000 1821.841 Lloyds Register
Forties Sandstone Mesozoic 2000.000 1975.837 Lloyds Register
Lista Mesozoic 2021.000 1996.835 Lloyds Register
Montrose Mesozoic 2021.000 1996.835 Lloyds Register
Balmoral Sandstone Cenozoic 2064.000 2039.832 Lloyds Register
Andrew Sandstone Cenozoic 2158.000 2133.823 Lloyds Register
Maureen Sandstone Mesozoic 2415.000 2390.799 Lloyds Register
Maureen Mesozoic 2415.000 2390.799 Lloyds Register
Ekofisk Mesozoic 2571.000 2546.790 Lloyds Register
Chalk Mesozoic 2571.000 2546.790 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2601.000 2576.789 Lloyds Register
Rodby Mesozoic 3438.000 3413.690 Lloyds Register
Cromer Knoll Mesozoic 3438.000 3413.690 Lloyds Register
Sola 3547.000 3522.621 Lloyds Register
Valhall Mesozoic 3593.000 3568.586 Lloyds Register
Kimmeridge Clay 4073.000 4046.452 Lloyds Register
Humber Mesozoic 4073.000 4046.452 Lloyds Register
Claymore Sandstone Mesozoic 4134.000 4107.048 Lloyds Register
Piper Mesozoic 4447.000 4111.289 Lloyds Register
Pentland Mesozoic 4517.000 4111.289 Lloyds Register
Fladen Mesozoic 4517.000 4111.289 Lloyds Register
Rattray Volcanics Mesozoic 4517.000 4111.289 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
15/23- 4 7 13 8 25 28 1 1 1 2 View

Hydrocarbon Occurrence (11)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/23- 4 Gas shows GS * 451.10400000000004 -- 168 m thick
15/23- 4 Gas shows GS * 619.3536 -- 63 m thick
15/23- 4 Gas shows GS * 682.7520000000001 -- 103 m thick
15/23- 4 Gas shows GS * 785.7744 -- 888 m thick
15/23- 4 Gas shows GS * 1673.352 -- 339 m thick
15/23- 4 Oil shows OS * 4072.7376000000004 -- 61 m thick
15/23- 4 Oil O UKSS 4133.6976 -- 129 m thick
15/23- 4 DST DST 1 -- 4182.8 4308.7 Not used for labelling, multiple DSTs in same play / Upper Jurassic
15/23- 4 DST DST 2 -- 4182.8 4308.7 Label / Upper Jurassic
15/23- 4 Oil O UKSS 4262.628000000001 -- 32 m thick
15/23- 4 Oil shows OS * 4294.6320000000005 -- 153 m thick

Rock Samples (34)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/23- 4 Cuttings 451.1 4541.52 -- -- --
15/23- 4 Core #1 4146.96 4156.86 φ 11.6% (n=30) · Kh 213.3 mD (n=30) · So 20.4% (n=30) · Sw 30.0% (n=30) · Density 2.68 (n=30) · FSP 12.9 (n=30) · CORE LABORATORIES UK LTD. SAMPLE REMOVED; SHALE NO ANALYSIS POSSIBLE | SS, GY MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG.; SS, GY MOT, M-FG, MOD/W STD, V/ HD, W SIL CMT, ABNT DISS PY.; SS, GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, TR F CARB MX.; SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, PTCH PY, SL VUG, F CARB MX.; SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, GD SIL CMT, DISS PY.; SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG.; SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG, TR ANH.; SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG.; SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, DISS PY.; SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG.; SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG, GD SIL CMT PTCHS.; SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG, TR ANH.; SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG.; SS, PA GY, M-FG, MOD/W STD, V/ HD, GD SIL CMT, TR PY, SL VUG.; SS, PA GY, M-FG, MOD/W STD, V/ HD, MOD SIL CMT, TR PY, SL VUG.; SS, PA GY, MG, W STD, V/ HD, SL PTCHY SIL CMT, SL VUG, TR PY, FEW CG.; SS, PA GY, MG, W STD, V/ HD, SL PTCHY SIL CMT, SL VUG, TR PY. well re-boxed (originally curated Nov`77)
15/23- 4 ↳ Core Plug #1 4147.109 -- φ 14.0% · Kh 603.0 mD · So 20.8% · Sw 61.1% · Density 2.67 · FSP 15.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4147.414 -- φ 11.7% · Kh 134.0 mD · So 20.8% · Sw 35.2% · Density 2.68 · FSP 15.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4147.718 -- φ 14.1% · Kh 613.0 mD · So 22.2% · Sw 55.5% · Density 2.68 · FSP 14.2 · CORE LABORATORIES UK LTD. SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG, TR ANH. --
15/23- 4 ↳ Core Plug #1 4148.023 -- φ 14.5% · Kh 584.0 mD · So 21.8% · Sw 60.1% · Density 2.69 · FSP 14.5 · CORE LABORATORIES UK LTD. SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4148.328 -- φ 12.5% · Kh 557.0 mD · So 20.7% · Sw 62.2% · Density 2.69 · FSP 14.4 · CORE LABORATORIES UK LTD. SS, PA GY, C-MG, MOD W STD, V/ HD, TR SIL CMT, TR PY, SL VUG, GD SIL CMT PTCHS. --
15/23- 4 ↳ Core Plug #1 4148.633 -- φ 12.2% · Kh 417.0 mD · So 19.8% · Sw 60.8% · Density 2.66 · FSP 15.3 · CORE LABORATORIES UK LTD. SS, PA GY, MG, W STD, V/ HD, SL PTCHY SIL CMT, SL VUG, TR PY. --
15/23- 4 ↳ Core Plug #1 4148.938 -- φ 12.1% · Kh 152.0 mD · So 16.5% · Sw 41.8% · Density 2.67 · FSP 15.5 · CORE LABORATORIES UK LTD. SS, PA GY, MG, W STD, V/ HD, SL PTCHY SIL CMT, SL VUG, TR PY, FEW CG. --
15/23- 4 ↳ Core Plug #1 4149.242 -- φ 13.3% · Kh 200.0 mD · So 18.2% · Sw 51.7% · Density 2.69 · FSP 13.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4149.547 -- φ 13.7% · Kh 393.0 mD · So 32.6% · Sw 14.8% · Density 2.68 · FSP 7.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4149.852 -- φ 13.9% · Kh 582.0 mD · So 19.7% · Sw 49.2% · Density 2.69 · FSP 16.2 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG, TR ANH. --
15/23- 4 ↳ Core Plug #1 4150.157 -- φ 12.0% · Kh 138.0 mD · So 21.5% · Sw 14.9% · Density 2.69 · FSP 12.2 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4150.462 -- φ 12.4% · Kh 133.0 mD · So 15.0% · Sw 16.5% · Density 2.68 · FSP 13.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL PTCHY SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4150.766 -- φ 13.8% · Kh 261.0 mD · So 18.0% · Sw 39.7% · Density 2.66 · FSP 16.4 · CORE LABORATORIES UK LTD. SS, GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, TR F CARB MX. --
15/23- 4 ↳ Core Plug #1 4151.071 -- φ 13.4% · Kh 251.0 mD · So 15.1% · Sw 22.1% · Density 2.66 · FSP 16.6 · CORE LABORATORIES UK LTD. SS, GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, TR F CARB MX. --
15/23- 4 ↳ Core Plug #1 4151.376 -- φ 11.8% · Kh 135.0 mD · So 13.8% · Sw 16.5% · Density 2.65 · FSP 14.2 · CORE LABORATORIES UK LTD. SS, GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, TR F CARB MX. --
15/23- 4 ↳ Core Plug #1 4151.681 -- φ 7.7% · Kh 2.6 mD · So 21.2% · Sw 5.6% · Density 2.64 · FSP 13.6 · CORE LABORATORIES UK LTD. SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, PTCH PY, SL VUG, F CARB MX. --
15/23- 4 ↳ Core Plug #1 4151.986 -- CORE LABORATORIES UK LTD. SAMPLE REMOVED --
15/23- 4 ↳ Core Plug #1 4152.29 -- φ 8.0% · Kh 2.5 mD · So 14.2% · Sw 22.8% · Density 2.71 · FSP 13.8 · CORE LABORATORIES UK LTD. SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4152.595 -- φ 5.6% · Kh 0.1 mD · So 44.2% · Sw 15.6% · Density 2.73 · FSP 8.1 · CORE LABORATORIES UK LTD. SS, GY/WH MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, GD SIL CMT, DISS PY. --
15/23- 4 ↳ Core Plug #1 4152.9 -- φ 3.3% · Kh 0.0 mD · So 18.7% · Sw 11.9% · Density 2.77 · FSP 11.9 · CORE LABORATORIES UK LTD. SS, GY MOT, M-FG, MOD/W STD, V/ HD, W SIL CMT, ABNT DISS PY. --
15/23- 4 ↳ Core Plug #1 4153.205 -- φ 13.1% · Kh 133.0 mD · So 17.9% · Sw 28.8% · Density 2.69 · FSP 14.2 · CORE LABORATORIES UK LTD. SS, GY MOT, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4153.51 -- φ 7.1% · Kh 1.2 mD · So 19.2% · Sw 15.3% · Density 2.66 · FSP 10.5 · CORE LABORATORIES UK LTD. SS, PA GY, M-FG, MOD/W STD, V/ HD, MOD SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4153.814 -- φ 3.8% · Kh 0.1 mD · So 23.2% · Sw 14.8% · Density 2.65 · FSP 9.7 · CORE LABORATORIES UK LTD. SS, PA GY, M-FG, MOD/W STD, V/ HD, MOD SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4154.119 -- φ 13.1% · Kh 83.0 mD · So 21.3% · Sw 25.5% · Density 2.68 · FSP 14.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4154.424 -- CORE LABORATORIES UK LTD. SHALE NO ANALYSIS POSSIBLE --
15/23- 4 ↳ Core Plug #1 4154.729 -- φ 14.7% · Kh 416.0 mD · So 22.9% · Sw 20.9% · Density 2.67 · FSP 10.7 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4155.034 -- φ 5.8% · Kh 0.1 mD · So 19.9% · Sw 11.9% · Density 2.63 · FSP 10.2 · CORE LABORATORIES UK LTD. SS, PA GY, M-FG, MOD/W STD, V/ HD, GD SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4155.338 -- φ 11.0% · Kh 43.0 mD · So 11.4% · Sw 13.7% · Density 2.63 · FSP 8.9 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4155.643 -- φ 14.1% · Kh 139.0 mD · So 23.3% · Sw 23.3% · Density 2.63 · FSP 8.9 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4155.948 -- φ 13.4% · Kh 100.0 mD · So 19.4% · Sw 30.3% · Density 2.68 · FSP 16.0 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --
15/23- 4 ↳ Core Plug #1 4156.253 -- φ 16.8% · Kh 108.0 mD · So 23.0% · Sw 25.3% · Density 2.71 · FSP 9.1 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG, DISS PY. --
15/23- 4 ↳ Core Plug #1 4156.558 -- φ 15.6% · Kh 218.0 mD · So 15.5% · Sw 31.0% · Density 2.68 · FSP 13.9 · CORE LABORATORIES UK LTD. SS, PA GY, C-FG, MOD STD, V/ HD, SL SIL CMT, TR PY, SL VUG. --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/23- 4 426.2627868652344 4538.47216796875 10 0 2026-08-06 08:30:10.802219+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/23- 4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 3939.6924000000004 4538.1672 3928
bulk_density DEN OGA Batch Unzipped 3939.2352 4138.2696000000005 1307
caliper CALI CGG Digital Well Logs 3938.4732000000004 4538.472000000001 3938
caliper MCAL CGG Digital Well Logs 4174.9980000000005 4538.472000000001 2354
comp_sonic DT CGG Digital Well Logs 441.35040000000004 4527.4992 26747
deep_resistivity RES_DEP OGA Batch Unzipped 415.1376 4138.2696000000005 24426
deep_resistivity ILD CGG Digital Well Logs 438.30240000000003 4537.1004 26869
density_correction DENC OGA Batch Unzipped 3939.2352 4138.2696000000005 1307
density_correction DRHO CGG Digital Well Logs 3940.1496 4538.472000000001 3927
gamma_ray GRD CGG Digital Well Logs 3937.4064000000003 4533.138 3909
gamma_ray GR CGG Digital Well Logs 426.2628 4533.2904 26950
micro_resistivity MINV CGG Digital Well Logs 4180.4844 4538.3196 2349
micro_resistivity MLL CGG Digital Well Logs 4180.0272 4538.472000000001 2353
micro_resistivity MNOR CGG Digital Well Logs 4180.4844 4538.472000000001 2350
neutron_por NPHI CGG Digital Well Logs 3939.6924000000004 4534.8144 3886
neutron_por NEU OGA Batch Unzipped 3939.2352 4138.2696000000005 1307
shallow_resistivity RES_SLW OGA Batch Unzipped 415.1376 4138.2696000000005 24426
shallow_resistivity SFLU CGG Digital Well Logs 439.06440000000003 4536.948 26877
sp SP CGG Digital Well Logs 438.30240000000003 4537.2528 26519

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/23- 4 161 4138.269 4111.289 D:\BigSpatial\nsta_raw\CGG_Deviation\15-23-4 10147n_CGG-Deviation.xlsx

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