Well Data Manager / Well Summary / 21/15b- 5

21/15b- 5

Decommissioned

Well Header

Well No
21/15b- 5
NSTA DEN No
2791
Well Name
--
Drill Seq No
5
Quadrant / Block
21 / 15 b
Surface Location
57.658561, 0.851077
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
ENTERPRISE OIL LIMITED
Original Operator
--
Sub Area Operator
ENTERPRISE OIL LIMITED
Licence No
P420
Licence Type
Production
Spud Date
1985-10-08
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/15b- 5 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
E
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
117.65
TD MD (m)
3693.566
TD TVDSS (m)
0.000
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1985-10-08
TD Reached
1985-12-02
Completion Date
1985-12-07
Release Date
1989-12-07

Formation Tops (25)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/15b- 5 Horda Cenozoic 1980.000 1954.952 Lloyds Register
Stronsay Cenozoic 1980.000 1954.952 Lloyds Register
Balder Cenozoic 2224.000 2198.940 Lloyds Register
Moray Mesozoic 2224.000 2198.940 Lloyds Register
Balder Tuff Cenozoic 2228.000 2202.940 Lloyds Register
Sele Mesozoic 2260.000 2234.938 Lloyds Register
Forties Sandstone Mesozoic 2295.000 2269.935 Lloyds Register
Lista Mesozoic 2399.000 2373.926 Lloyds Register
Montrose Mesozoic 2399.000 2373.926 Lloyds Register
Balmoral Sandstone Cenozoic 2415.000 2389.924 Lloyds Register
Glamis Tuff 2551.000 2525.912 Lloyds Register
Andrew Sandstone Cenozoic 2624.000 2598.908 Lloyds Register
Maureen Sandstone Mesozoic 2697.000 2671.903 Lloyds Register
Maureen Mesozoic 2697.000 2671.903 Lloyds Register
Chalk Mesozoic 2776.000 2750.894 Lloyds Register
Ekofisk Mesozoic 2776.000 2750.894 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2836.000 2810.874 Lloyds Register
Valhall Mesozoic 3452.000 3426.278 Lloyds Register
Cromer Knoll Mesozoic 3452.000 3426.278 Lloyds Register
Humber Mesozoic 3483.000 3457.227 Lloyds Register
Kimmeridge Clay 3483.000 3457.227 Lloyds Register
Fulmar Mesozoic 3502.000 3476.196 Lloyds Register
Fladen Mesozoic 3543.000 3517.119 Lloyds Register
Pentland Mesozoic 3543.000 3517.119 Lloyds Register
Rattray Volcanics Mesozoic 3595.000 3568.986 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
21/15b- 5 7 11 7 35 25 3 3 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/15b- 5 Oil shows OS Pibroch Sandstone Member 3501.5424000000003 -- 42 m thick

Rock Samples (4)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/15b- 5 Cuttings 512.06 3718.56 -- -- .
21/15b- 5 Core #1 3511.3 3515.87 -- -- .
21/15b- 5 Core #2 3515.87 3519.53 -- -- preserved samples taken .
21/15b- 5 Core #4 3529.89 3557.32 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/15b- 5 136.09320068359375 3713.68310546875 8 0 2026-08-06 17:24:42.859519+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/15b- 5
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN CGG Digital Well Logs 1524.7620000000002 3713.0736 14320
caliper CAL CGG Digital Well Logs 1524.9144000000001 3713.0736 14321
comp_sonic AC CGG Digital Well Logs 1525.8288 3708.654 14182
deep_resistivity RILD CGG Digital Well Logs 1524.4572 3712.6164000000003 14308
density_correction CORR CGG Digital Well Logs 1524.6096 3713.0736 14319
gamma_ray GR CGG Digital Well Logs 136.0932 3713.6832000000004 23476
gamma_ray GRD CGG Digital Well Logs 2515.0572 3712.0068 2982
med_resistivity RILM CGG Digital Well Logs 1524.7620000000002 3712.9212 14302
neutron_por CN CGG Digital Well Logs 1524.9144000000001 3708.1968 14242
potassium K CGG Digital Well Logs 2514.9048000000003 3712.0068 2981
thorium TH CGG Digital Well Logs 2514.9048000000003 3712.3116 2985

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/15b- 5 15 3718.560 3692.232 D:\BigSpatial\nsta_raw\CGG_Deviation\21-15b-5 21-15b-5_7058_Deviation.xls

Related Documents

Open Document Search
Searching related documents...