Well Data Manager / Well Summary / 15/21b- 50

15/21b- 50

Decommissioned

Well Header

Well No
15/21b- 50
NSTA DEN No
5059
Well Name
--
Drill Seq No
50
Quadrant / Block
15 / 21 b
Surface Location
58.226320, 0.132203
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
HESS LIMITED
Original Operator
--
Sub Area Operator
HESS LIMITED
Licence No
P588
Licence Type
Production
Spud Date
1993-08-16
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/21b- 50 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
SEA
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
140.82
TD MD (m)
2913.888
TD TVDSS (m)
2886.605
TD Datum Depth (m)
25.908
TD Datum Type
Rotary Table
Spud Date
1993-08-16
TD Reached
1993-09-13
Completion Date
1993-09-22
Release Date
1997-09-22

Formation Tops (33)

Wellbore Formation Era MD (m) TVDSS (m) Provider
15/21b- 50 Horda Cenozoic 673.000 647.060 Lloyds Register
Stronsay Cenozoic 673.000 647.060 Lloyds Register
Grid Sandstone Cenozoic 748.000 722.058 Lloyds Register
Balder Tuff Cenozoic 1174.000 1148.023 Lloyds Register
Balder Cenozoic 1174.000 1148.023 Lloyds Register
Moray Mesozoic 1174.000 1148.023 Lloyds Register
Dornoch Mesozoic 1226.000 1200.012 Lloyds Register
Upper Dornoch Sandstone Cenozoic 1226.000 1200.012 Lloyds Register
Lower Dornoch Sandstone Cenozoic 1417.000 1390.977 Lloyds Register
Lista Mesozoic 1490.000 1463.960 Lloyds Register
Montrose Mesozoic 1490.000 1463.960 Lloyds Register
Balmoral Sandstone Cenozoic 1565.000 1538.941 Lloyds Register
Glamis Tuff 1769.000 1742.881 Lloyds Register
Andrew Sandstone Cenozoic 1823.000 1796.866 Lloyds Register
Maureen Sandstone Mesozoic 2093.000 2066.723 Lloyds Register
Maureen Mesozoic 2093.000 2066.723 Lloyds Register
Maureen Reworked Unit Mesozoic 2159.000 2132.699 Lloyds Register
Ekofisk Mesozoic 2235.000 2208.675 Lloyds Register
Chalk Mesozoic 2235.000 2208.675 Lloyds Register
Tor Mesozoic 2259.000 2232.667 Lloyds Register
Mackerel Mesozoic 2365.000 2338.627 Lloyds Register
Herring Mesozoic 2489.000 2462.527 Lloyds Register
Hidra Mesozoic 2500.000 2473.514 Lloyds Register
Cromer Knoll Mesozoic 2527.000 2500.479 Lloyds Register
Valhall Mesozoic 2527.000 2500.479 Lloyds Register
Humber Mesozoic 2545.000 2518.451 Lloyds Register
Kimmeridge Clay 2545.000 2518.451 Lloyds Register
Claymore Sandstone Mesozoic 2621.000 2594.310 Lloyds Register
Piper Mesozoic 2737.000 2710.090 Lloyds Register
Sgiath Mesozoic 2855.000 2827.860 Lloyds Register
Fladen Mesozoic 2861.000 2833.847 Lloyds Register
Pentland Mesozoic 2861.000 2833.847 Lloyds Register
Rattray Volcanics Mesozoic 2861.000 2833.847 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
15/21b- 50 7 15 11 30 33 1 4 1 1 View

Hydrocarbon Occurrence (3)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
15/21b- 50 Oil OW Claymore Sandstone Member 2621.28 -- 44 m thick
15/21b- 50 DST DST 1 -- 2627.4 2959.6 Label / Upper Jurassic
15/21b- 50 Oil shows OS SCOS 2776.1184000000003 -- 68 m thick

Rock Samples (5)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/21b- 50 Cuttings 493.78 2913.89 -- -- --
15/21b- 50 Core #1 2640.18 2660.9 -- -- --
15/21b- 50 Core #2 2664.26 2681.33 -- -- --
15/21b- 50 Core #3 2680.41 2708.45 -- -- --
15/21b- 50 Core #4 2708.45 2735.88 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/21b- 50 64.61759948730469 2903.98193359375 7 0 2026-08-06 08:25:25.173061+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/21b- 50
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 1326.7944 2901.5436 10334
cable_tension TENS OGA Batch Unzipped 64.6176 2916.174 18712
caliper CALI OGA Batch Unzipped 1326.1848 2898.8004 10320
comp_sonic DT OGA Batch Unzipped 1328.0136 2903.982 10342
density_correction DENC OGA Batch Unzipped 1326.7944 2901.5436 10334
gamma_ray GR OGA Batch Unzipped 64.6176 2892.3996 18556
neutron_por NEU OGA Batch Unzipped 1292.9616 2895.1428 10514
pef PEF OGA Batch Unzipped 1326.7944 2901.5436 10334

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/21b- 50 104 2913.888 2886.617 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_21b- 50\WELL_PATH\WDD_QC\15_21b-_50_wdd_WDD_FILE_1678398_DATACO_MAPPED.csv

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