Well Data Manager / Well Summary / 31/21- 1

31/21- 1

Decommissioned

Well Header

Well No
31/21- 1
NSTA DEN No
2432
Well Name
--
Drill Seq No
1
Quadrant / Block
31 / 21
Surface Location
56.167328, 3.066443
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
HESS LIMITED
Original Operator
--
Sub Area Operator
HESS LIMITED
Licence No
P288
Licence Type
Production
Spud Date
1984-06-28
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

31/21- 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)
24.994
Ground Elev (m)
--
Water Depth (m)
71.93
TD MD (m)
3434.486
TD TVDSS (m)
0.000
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1984-06-28
TD Reached
1984-07-30
Completion Date
1984-08-05
Release Date
1988-08-05

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
31/21- 1 Horda Cenozoic 2206.000 2180.610 Lloyds Register
Stronsay Cenozoic 2206.000 2180.610 Lloyds Register
Balder Cenozoic 2761.000 2735.584 Lloyds Register
Balder Tuff Cenozoic 2761.000 2735.584 Lloyds Register
Moray Mesozoic 2761.000 2735.584 Lloyds Register
Sele Mesozoic 2778.000 2752.583 Lloyds Register
Montrose Mesozoic 2807.000 2781.582 Lloyds Register
Lista Mesozoic 2807.000 2781.582 Lloyds Register
Maureen Mesozoic 2836.000 2810.580 Lloyds Register
Chalk Mesozoic 2862.000 2836.577 Lloyds Register
Ekofisk Mesozoic 2862.000 2836.577 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2952.000 2926.573 Lloyds Register
Heron Palaeozoic 3256.000 3230.550 Lloyds Register
Smith Bank Mesozoic 3256.000 3230.550 Lloyds Register
Zechstein Palaeozoic 3360.000 3334.525 Lloyds Register
Turbot Anhydrite Palaeozoic 3360.000 3334.525 Lloyds Register
Kupferschiefer Palaeozoic 3426.000 3400.490 Lloyds Register
Rotliegend 3427.000 3401.490 Lloyds Register
Auk 3427.000 3401.490 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
31/21- 1 7 11 1 23 19 3 7 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (8)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
31/21- 1 Cuttings 173.74 3459.48 -- -- .
31/21- 1 Core #1 3199.79 3218.44 -- -- preserved samples taken .
31/21- 1 Core #2 3218.51 3236.15 -- -- .
31/21- 1 Core #3 3236.67 3237.59 -- -- .
31/21- 1 Core #4 3237.28 3255.57 -- -- .
31/21- 1 Core #5 3255.57 3273.86 -- -- .
31/21- 1 Core #6 3274.16 3292.21 -- -- .
31/21- 1 Core #7 3292.3 3309.37 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
31/21- 1 89.306396484375 3458.4130859375 8 0 2026-08-06 18:36:59.134116+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
31/21- 1
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN CGG Digital Well Logs 1704.594 3458.4132 11509
caliper CAL CGG Digital Well Logs 1704.594 3458.2608 11508
comp_sonic AC CGG Digital Well Logs 684.4284 3450.7932 18153
deep_resistivity RILD CGG Digital Well Logs 684.5808000000001 3456.1272000000004 18187
density_correction COR CGG Digital Well Logs 1704.7464 3458.2608 11507
gamma_ray GR CGG Digital Well Logs 89.30640000000001 3446.9832 21981
gamma_ray GRD CGG Digital Well Logs 1685.2392 3454.2984 11609
med_resistivity RILM CGG Digital Well Logs 684.4284 3455.9748 18187
neutron_por CNC CGG Digital Well Logs 1702.6128 3455.5176 11503

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
31/21- 1 109 3459.480 3433.948 D:\BigSpatial\nsta_raw\CGG_Deviation\31-21-1 7250y_CGG-Deviation.xlsx

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