Well Data Manager / Well Summary / 21/05b- 1

21/05b- 1

Decommissioned

Well Header

Well No
21/05b- 1
NSTA DEN No
3374
Well Name
--
Drill Seq No
1
Quadrant / Block
21 / 5 b
Surface Location
57.870314, 0.955921
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
FINA PETROLEUM DEVELOPMENT LIMITED
Original Operator
--
Sub Area Operator
FINA PETROLEUM DEVELOPMENT LIMITED
Licence No
P594
Licence Type
Production
Spud Date
1988-02-10
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/05b- 1 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
131.06
TD MD (m)
3070.560
TD TVDSS (m)
2467.610
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1988-02-10
TD Reached
1988-03-21
Completion Date
1988-03-30
Release Date
1992-03-30

Formation Tops (8)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/05b- 1 Horda Cenozoic 2322.000 2296.092 Lloyds Register
Stronsay Cenozoic 2322.000 2296.092 Lloyds Register
Caran Sanstone 2577.000 2551.092 Lloyds Register
Moray Mesozoic 2921.000 2895.092 Lloyds Register
Balder Cenozoic 2921.000 2895.092 Lloyds Register
Balder Tuff Cenozoic 2931.000 2905.092 Lloyds Register
Sele Mesozoic 2964.000 2938.092 Lloyds Register
Forties Sandstone Mesozoic 3030.000 3004.092 Lloyds Register

Lithology Intervals

21/05b- 1 Curve: SANDCOUNT 22 intervals  ·  MD 590.550 – 3062.935 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (22)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
21/05b- 1 2 3 3 12 8 2 1 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (2)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/05b- 1 Cuttings 469.39 3063.24 -- -- .
21/05b- 1 Core #1 2591.1 2606.5 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/05b- 1 157.42919921875 3071.164794921875 9 0 2026-08-06 10:10:42.939393+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/05b- 1
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 462.99120000000005 3071.1648 16848
caliper CALS CGG Digital Well Logs 2291.4864000000002 3051.0480000000002 4985
caliper CALI CGG Digital Well Logs 462.99120000000005 3071.1648 16846
comp_sonic DT CGG Digital Well Logs 463.75320000000005 3058.9728 16775
deep_resistivity IDPH CGG Digital Well Logs 2291.4864000000002 3068.1168000000002 5097
deep_resistivity ILD CGG Digital Well Logs 462.99120000000005 3068.1168000000002 16917
density_correction DRHO CGG Digital Well Logs 463.14360000000005 3071.1648 16847
gamma_ray GRD CGG Digital Well Logs 448.81800000000004 3050.4384 16845
gamma_ray GR CGG Digital Well Logs 157.4292 3052.1148000000003 18995
med_resistivity ILM CGG Digital Well Logs 462.99120000000005 3068.8788 16928
med_resistivity IMPH CGG Digital Well Logs 2291.4864000000002 3068.8788 5102
neutron_por NPHI CGG Digital Well Logs 462.99120000000005 3064.6116 16760
pef PEF CGG Digital Well Logs 463.14360000000005 3071.1648 16846

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/05b- 1 0 -- -- --

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