Well Data Manager / Well Summary / 12/21- 5

12/21- 5

Decommissioned

Well Header

Well No
12/21- 5
NSTA DEN No
3104
Well Name
--
Drill Seq No
5
Quadrant / Block
12 / 21
Surface Location
58.199826, -2.997605
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
BRITOIL LIMITED
Original Operator
--
Sub Area Operator
BRITOIL LIMITED
Licence No
P369
Licence Type
Production
Spud Date
1987-03-05
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

12/21- 5 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
E
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
35.050
Ground Elev (m)
--
Water Depth (m)
41.45
TD MD (m)
2759.960
TD TVDSS (m)
2721.530
TD Datum Depth (m)
34.747
TD Datum Type
Kelly Bushing
Spud Date
1987-03-05
TD Reached
1987-04-07
Completion Date
1987-04-08
Release Date
1991-04-08

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
12/21- 5 Chalk Mesozoic 76.000 40.950 Lloyds Register
Cromer Knoll Mesozoic 320.000 284.949 Lloyds Register
Valhall Mesozoic 610.000 574.948 Lloyds Register
Humber Mesozoic 956.000 920.944 Lloyds Register
Kimmeridge Clay 956.000 920.944 Lloyds Register
Burns Sandstone Mesozoic 992.000 956.943 Lloyds Register
Burns Sandstone Mesozoic 1392.000 1356.775 Lloyds Register
Heather Mesozoic 2007.000 1970.993 Lloyds Register
Alness Spiculite Mesozoic 2260.000 2223.281 Lloyds Register
Fladen Mesozoic 2389.000 2351.840 Lloyds Register
Beatrice 2389.000 2351.840 Lloyds Register
Brora Coal Mesozoic 2444.000 2406.652 Lloyds Register
Orrin 2554.000 2516.276 Lloyds Register
Dunrobin Bay Mesozoic 2554.000 2516.276 Lloyds Register
Lady's Walk 2611.000 2573.081 Lloyds Register
Mains 2633.000 2595.006 Lloyds Register
Golspie 2691.000 2652.808 Lloyds Register
Stotfield Calcrete Mesozoic 2744.000 2705.627 Lloyds Register
Heron Palaeozoic 2744.000 2705.627 Lloyds Register

Lithology Intervals

12/21- 5 Curve: SANDCOUNT 77 intervals  ·  MD 316.230 – 2757.221 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (75)
Limestone (2)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
12/21- 5 6 10 3 28 19 4 0 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
12/21- 5 Cuttings 320.04 2759.96 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
12/21- 5 73.60919952392578 2761.792724609375 11 0 2026-08-06 07:41:09.614522+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
12/21- 5
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 1070.3052 2761.7928 11100
caliper CALI CGG Digital Well Logs 300.5328 2761.3356000000003 16034
comp_sonic DT CGG Digital Well Logs 306.1716 2750.5152000000003 15984
deep_resistivity ILD CGG Digital Well Logs 302.9712 2759.6592 16121
density_correction DRHO CGG Digital Well Logs 1070.3052 2761.7928 11100
gamma_ray GR CGG Digital Well Logs 73.6092 2751.5820000000003 17573
gamma_ray GRD CGG Digital Well Logs 1040.2824 2751.5820000000003 11230
med_resistivity ILM CGG Digital Well Logs 302.9712 2759.964 16123
neutron_por NPHI CGG Digital Well Logs 1070.4576 2754.9348 11054
pef PEF CGG Digital Well Logs 1070.4576 2761.7928 11099
shallow_resistivity SFLU CGG Digital Well Logs 302.8188 1071.6768 5046
sp SP CGG Digital Well Logs 303.7332 1072.896 5048

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
12/21- 5 289 2761.793 2723.359 D:\BigSpatial\nsta_raw\CGG_Deviation\12-21-5 7466p-CGG_Deviation.xlsx

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