Well Data Manager / Well Summary / 16/21a- 23

16/21a- 23

Decommissioned

Well Header

Well No
16/21a- 23
NSTA DEN No
4396
Well Name
--
Drill Seq No
23
Quadrant / Block
16 / 21 a
Surface Location
58.205934, 1.111363
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
PREMIER OIL E&P UK LIMITED
Original Operator
--
Sub Area Operator
PREMIER OIL E&P UK LIMITED
Licence No
P201
Licence Type
Production
Spud Date
1991-05-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

16/21a- 23 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
JB
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
144.17
TD MD (m)
2875.790
TD TVDSS (m)
2849.882
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1991-05-22
TD Reached
1991-06-24
Completion Date
1991-06-29
Release Date
1995-06-29

Formation Tops (21)

Wellbore Formation Era MD (m) TVDSS (m) Provider
16/21a- 23 Horda Cenozoic 1617.000 1591.022 Lloyds Register
Stronsay Cenozoic 1617.000 1591.022 Lloyds Register
Caran Sanstone 1818.000 1792.008 Lloyds Register
Balder Cenozoic 2132.000 2105.949 Lloyds Register
Moray Mesozoic 2132.000 2105.949 Lloyds Register
Balder Tuff Cenozoic 2146.000 2119.946 Lloyds Register
Sele Mesozoic 2164.000 2137.943 Lloyds Register
Lista Mesozoic 2217.000 2190.933 Lloyds Register
Montrose Mesozoic 2217.000 2190.933 Lloyds Register
Balmoral Sandstone Cenozoic 2245.000 2218.928 Lloyds Register
Andrew Sandstone Cenozoic 2301.000 2274.917 Lloyds Register
Maureen Reworked Unit Mesozoic 2463.000 2436.889 Lloyds Register
Maureen Mesozoic 2463.000 2436.889 Lloyds Register
Ekofisk Mesozoic 2530.000 2503.878 Lloyds Register
Chalk Mesozoic 2530.000 2503.878 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2587.000 2560.871 Lloyds Register
Kimmeridge Clay 2796.000 2769.851 Lloyds Register
Humber Mesozoic 2796.000 2769.851 Lloyds Register
Piper Mesozoic 2808.000 2781.850 Lloyds Register
Old Red Sandstone 2835.000 2808.846 Lloyds Register
Old Red Palaeozoic 2835.000 2808.846 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
16/21a- 23 6 10 5 16 21 1 0 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
16/21a- 23 Oil shows OS * 2834.6400000000003 -- 44 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
16/21a- 23 Cuttings 490.73 2875.79 -- -- wet samples .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
16/21a- 23 140.6652069091797 2878.68359375 11 0 2026-08-06 09:19:23.490156+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
16/21a- 23
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 1096.0608 2875.788 11679
bulk_density RHOB CGG Digital Well Logs 2626.1568 2878.6836000000003 1658
caliper CALS CGG Digital Well Logs 471.5256 2878.2264 15756
caliper CALI OGA Batch Unzipped 446.53200000000004 2875.788 15841
comp_sonic DT CGG Digital Well Logs 478.3836 2866.1868 15627
comp_sonic DTLF CGG Digital Well Logs 478.6884 1077.6204 3931
deep_resistivity ILD CGG Digital Well Logs 1078.0776 2876.0928000000004 11799
deep_resistivity LLD CGG Digital Well Logs 471.8304 1087.9836 4044
deep_resistivity RES_DEP OGA Batch Unzipped 446.53200000000004 2875.788 15936
density_correction DENC OGA Batch Unzipped 1096.0608 2875.788 11679
density_correction DRHO CGG Digital Well Logs 2624.7852000000003 2878.5312000000004 1666
gamma_ray GR CGG Digital Well Logs 140.6652 2869.0824000000002 17904
gamma_ray SGR CGG Digital Well Logs 2606.4972000000002 2869.8444 1729
gamma_ray CGR CGG Digital Well Logs 2606.4972000000002 2869.8444 1729
med_resistivity ILM CGG Digital Well Logs 1078.23 2877.0072 11804
med_resistivity RES_MED OGA Batch Unzipped 1041.5016 2875.788 12037
neutron_por NPHI CGG Digital Well Logs 2613.6600000000003 2872.8924 1702
neutron_por NEU OGA Batch Unzipped 1038.4536 2875.788 12052
pef PEF CGG Digital Well Logs 2624.7852000000003 2878.2264 1664
shallow_resistivity LLS CGG Digital Well Logs 471.678 1087.8312 4044
shallow_resistivity RES_SLW OGA Batch Unzipped 446.53200000000004 2875.788 15936
sp SP CGG Digital Well Logs 471.678 1063.4472 3884
thorium THOR CGG Digital Well Logs 2606.4972000000002 2869.692 1728
uranium URAN CGG Digital Well Logs 2606.4972000000002 2869.8444 1729

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
16/21a- 23 23 2879.446 2853.276 D:\BigSpatial\nsta_raw\CGG_Deviation\16-21a-23 14672am_CGG-Deviation.xlsx

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