Well Data Manager / Well Summary / 15/21a-A2

15/21a-A2

Present

Well Header

Well No
15/21a-A2
NSTA DEN No
4550
Well Name
--
Drill Seq No
2
Quadrant / Block
15 / 21 a
Surface Location
58.284148, 0.169696
Source Datum
ED50
Subsea Well
Yes
Platform
A
Slot No
AG
Operator
CNOOC PETROLEUM EUROPE LIMITED
Original Operator
--
Sub Area Operator
CNOOC PETROLEUM EUROPE LIMITED
Licence No
P218
Licence Type
Production
Spud Date
1991-05-23
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

15/21a-A2 Original
Completed (Shut In) View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
G
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.823
Ground Elev (m)
--
Water Depth (m)
139.29
TD MD (m)
4311.400
TD TVDSS (m)
3967.890
TD Datum Depth (m)
26.822
TD Datum Type
Kelly Bushing
Spud Date
1991-05-23
TD Reached
1992-01-14
Completion Date
1992-04-14
Release Date
1996-04-14

Formation Tops (0)

No formation tops ingested for this well.

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
15/21a-A2 0 0 0 0 0 0 3 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (4)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
15/21a-A2 Cuttings 740.66 4311.4 -- -- .
15/21a-A2 Core #1 4033.72 4061.76 -- -- .
15/21a-A2 Core #2 4061.76 4078.71 -- -- .
15/21a-A2 Core #3 4077.92 4105.81 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
15/21a-A2 164.8968048095703 4311.39599609375 8 0 2026-08-06 08:24:55.682646+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
15/21a-A2
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 164.8968 4311.396000000001 27204
caliper CALI OGA Batch Unzipped 164.8968 4300.728 9983
comp_sonic DT OGA Batch Unzipped 164.8968 4311.396000000001 27204
deep_resistivity RES_DEP OGA Batch Unzipped 164.8968 4311.396000000001 27204
gamma_ray GR OGA Batch Unzipped 164.8968 4311.396000000001 27204
med_resistivity RES_MED OGA Batch Unzipped 164.8968 4311.396000000001 9283
neutron_por NEU OGA Batch Unzipped 164.8968 4307.4336 27178
sp SP OGA Batch Unzipped 164.8968 4311.396000000001 27204

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
15/21a-A2 707 4311.396 3943.311 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_15\15_21a-A2\WELL_PATH\WDD_QC\15_21a-A2_wdd_WDD_FILE_1678377_DATACO_MAPPED.csv

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