Well Data Manager / Well Summary / 21/29a- 5

21/29a- 5

Decommissioned

Well Header

Well No
21/29a- 5
NSTA DEN No
2457
Well Name
--
Drill Seq No
5
Quadrant / Block
21 / 29 a
Surface Location
57.122291, 0.721852
Source Datum
ED50
Subsea Well
No
Platform
--
Slot No
--
Operator
EQUINOR UK LIMITED
Original Operator
--
Sub Area Operator
EQUINOR UK LIMITED
Licence No
P21
Licence Type
Production
Spud Date
1984-08-04
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/29a- 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
M
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.298
Ground Elev (m)
--
Water Depth (m)
89.00
TD MD (m)
2353.056
TD TVDSS (m)
2353.056
TD Datum Depth (m)
25.298
TD Datum Type
Kelly Bushing
Spud Date
1984-08-04
TD Reached
1984-08-30
Completion Date
1984-09-08
Release Date
1988-09-08

Formation Tops (22)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/29a- 5 Stronsay Cenozoic 1437.000 1411.655 Lloyds Register
Horda Cenozoic 1437.000 1411.655 Lloyds Register
Moray Mesozoic 1628.000 1602.640 Lloyds Register
Balder Cenozoic 1628.000 1602.640 Lloyds Register
Sele Mesozoic 1659.000 1633.637 Lloyds Register
Balmoral Sandstone Cenozoic 1750.000 1724.629 Lloyds Register
Montrose Mesozoic 1750.000 1724.629 Lloyds Register
Lista Mesozoic 1750.000 1724.629 Lloyds Register
Chalk Mesozoic 1837.000 1811.621 Lloyds Register
Upper Cretaceous Chalk Mesozoic 1837.000 1811.621 Lloyds Register
Rodby Mesozoic 2081.000 2055.584 Lloyds Register
Cromer Knoll Mesozoic 2081.000 2055.584 Lloyds Register
Sola 2100.000 2074.581 Lloyds Register
Valhall Mesozoic 2125.000 2099.579 Lloyds Register
Humber Mesozoic 2192.000 2166.571 Lloyds Register
Kimmeridge Clay 2192.000 2166.571 Lloyds Register
Heather Mesozoic 2233.000 2207.566 Lloyds Register
Fulmar Mesozoic 2272.000 2246.561 Lloyds Register
Smith Bank Mesozoic 2320.000 2294.555 Lloyds Register
Heron Palaeozoic 2320.000 2294.555 Lloyds Register
Turbot Anhydrite Palaeozoic 2348.000 2322.550 Lloyds Register
Zechstein Palaeozoic 2348.000 2322.550 Lloyds Register

Lithology Intervals

21/29a- 5 Curve: SANDCOUNT 11 intervals  ·  MD 1750.162 – 2314.194 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (10)
Limestone (1)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
21/29a- 5 8 13 1 12 22 2 0 1 0 View

Hydrocarbon Occurrence (4)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/29a- 5 Oil shows OS PALU 1750.1616000000001 -- 44 m thick
21/29a- 5 Oil shows OS * 1794.3576 -- 43 m thick
21/29a- 5 Oil shows OS * 2232.6600000000003 -- 39 m thick
21/29a- 5 Oil shows OS JSND 2271.6744000000003 -- 48 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/29a- 5 Cuttings 185.93 2353.06 -- -- wet samples came in as 21/29A-M 5 .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/29a- 5 126.94920349121094 2375.763671875 11 0 2026-08-06 10:24:02.597205+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/29a- 5
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 173.12640000000002 2373.0204000000003 3878
caliper CALI CGG Digital Well Logs 173.27880000000002 2373.3252 14248
comp_sonic DT CGG Digital Well Logs 417.8808 2362.5048 12651
deep_resistivity ILD CGG Digital Well Logs 418.0332 2374.5444 12839
density_correction DRHO CGG Digital Well Logs 172.97400000000002 2373.1728000000003 3883
gamma_ray GRD CGG Digital Well Logs 163.2204 2361.5904 3948
gamma_ray GR CGG Digital Well Logs 126.9492 2367.534 14703
gamma_ray CGR CGG Digital Well Logs 2022.1956 2361.2856 2226
med_resistivity ILM CGG Digital Well Logs 418.0332 2375.7636 12847
micro_resistivity MSFL CGG Digital Well Logs 417.4236 2356.7136 12556
neutron_por NPHI CGG Digital Well Logs 173.27880000000002 2366.772 3811
pef PEF CGG Digital Well Logs 173.12640000000002 2346.5028 3705
potassium POTA CGG Digital Well Logs 2041.3980000000001 2364.9432 2124
sp SP CGG Digital Well Logs 417.7284 2374.3920000000003 12840
thorium THOR CGG Digital Well Logs 2041.3980000000001 2364.7908 2123
uranium URAN CGG Digital Well Logs 2041.5504 2364.9432 2123

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/29a- 5 23 2378.354 2352.898 D:\BigSpatial\nsta_raw\CGG_Deviation\21-29a-5 4192ak_CGG-Deviation.xlsx

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