Well Data Manager / Well Summary / 13/21a- 1

13/21a- 1

Decommissioned

Well Header

Well No
13/21a- 1
NSTA DEN No
4131
Well Name
--
Drill Seq No
1
Quadrant / Block
13 / 21 a
Surface Location
58.288439, -1.832479
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
ITHACA ENERGY (UK) LIMITED
Original Operator
--
Sub Area Operator
ITHACA ENERGY (UK) LIMITED
Licence No
P185
Licence Type
Production
Spud Date
1990-08-05
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

13/21a- 1 Original
Abandoned Phase 3 Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
22.860
Ground Elev (m)
--
Water Depth (m)
103.63
TD MD (m)
176.784
TD TVDSS (m)
0.000
TD Datum Depth (m)
22.860
TD Datum Type
Kelly Bushing
Spud Date
1990-08-05
TD Reached
1990-08-06
Completion Date
1990-08-11
Release Date
1994-08-11
13/21a- 1A Sidetrack A parent: 13/21a- 1
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas and Oil Well
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
23.165
Ground Elev (m)
--
Water Depth (m)
103.63
TD MD (m)
1372.210
TD TVDSS (m)
0.000
TD Datum Depth (m)
23.165
TD Datum Type
Kelly Bushing
Spud Date
1990-08-12
TD Reached
1990-08-27
Completion Date
1990-09-03
Release Date
1994-09-03

Formation Tops (10)

Wellbore Formation Era MD (m) TVDSS (m) Provider
13/21a- 1A Chalk Mesozoic 411.000 387.835 Lloyds Register
Upper Cretaceous Chalk Mesozoic 412.000 388.835 Lloyds Register
Lower Cretaceous Undifferentiated Mesozoic 877.000 853.792 Lloyds Register
Cromer Knoll Mesozoic 877.000 853.792 Lloyds Register
Captain Sandstone Mesozoic 885.000 861.790 Lloyds Register
Wick Sandstone 885.000 861.790 Lloyds Register
Humber Mesozoic 1293.000 1269.674 Lloyds Register
Kimmeridge Clay 1293.000 1269.674 Lloyds Register
Burns Sandstone Mesozoic 1303.000 1279.670 Lloyds Register
Ross Sandstone 1363.000 1339.649 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
13/21a- 1 0 0 0 0 0 0 0 0 0
13/21a- 1A 3 5 2 9 10 2 0 1 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
13/21a- 1A Oil shows OS Wick Sandstone Formation 885.4440000000001 -- 408 m thick

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
13/21a- 1A Cuttings 585.22 1392.94 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
13/21a- 1A 121.46279907226562 1395.52685546875 12 0 2026-08-06 07:43:29.649918+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
13/21a- 1A
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 576.2244000000001 1395.5268 5377
caliper CALI CGG Digital Well Logs 576.072 1395.3744000000002 5377
comp_sonic DT CGG Digital Well Logs 576.5292000000001 1384.554 5303
deep_resistivity LLG CGG Digital Well Logs 821.2836000000001 1392.0216 3746
deep_resistivity ILD CGG Digital Well Logs 576.9864 1393.8504 5361
deep_resistivity LLD CGG Digital Well Logs 820.8264 1392.0216 3749
density_correction DRHO CGG Digital Well Logs 576.2244000000001 1395.3744000000002 5376
gamma_ray GR CGG Digital Well Logs 121.4628 1385.6208000000001 8296
gamma_ray CGR CGG Digital Well Logs 542.0868 1386.9924 5545
med_resistivity ILM CGG Digital Well Logs 576.8340000000001 1394.9172 5369
micro_resistivity MSFL CGG Digital Well Logs 820.8264 1381.2012 3678
neutron_por NPHI CGG Digital Well Logs 576.2244000000001 1391.2596 5349
pef PEF CGG Digital Well Logs 576.3768 1395.5268 5376
shallow_resistivity LLS CGG Digital Well Logs 820.8264 1392.0216 3749
shallow_resistivity SFLU CGG Digital Well Logs 576.5292000000001 1394.6124 5369
sp SP CGG Digital Well Logs 576.3768 1395.0696 5373
thorium THOR CGG Digital Well Logs 542.0868 1386.9924 5545
uranium URAN CGG Digital Well Logs 542.0868 1386.9924 5545

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
13/21a- 1 0 -- -- --
13/21a- 1A 30 1395.370 1372.010 D:\BigSpatial\nsta_raw\CGG_Deviation\13-21a-1A 11877bj_CGG-Deviation.xlsx

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