Well Data Manager / Well Summary / 16/21a-B4

16/21a-B4

Present

Well Header

Well No
16/21a-B4
NSTA DEN No
2600
Well Name
--
Drill Seq No
4
Quadrant / Block
16 / 21 a
Surface Location
58.228685, 1.107362
Source Datum
ED50
Subsea Well
Yes
Platform
B
Slot No
10
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
1985-02-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

16/21a-B4 Original
Plugged View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
AO
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.298
Ground Elev (m)
--
Water Depth (m)
145.39
TD MD (m)
3564.940
TD TVDSS (m)
2269.846
TD Datum Depth (m)
25.298
TD Datum Type
Kelly Bushing
Spud Date
1985-02-03
TD Reached
1985-03-14
Completion Date
1986-04-27
Release Date
1990-04-27

Formation Tops (11)

Wellbore Formation Era MD (m) TVDSS (m) Provider
16/21a-B4 Hordaland Cenozoic 171.000 145.702 BGS LithoStrat Upper
Hordaland Cenozoic 232.000 206.702 BGS LithoStrat Upper
Hordaland Cenozoic 1728.000 1702.702 BGS LithoStrat Upper
Hordaland Cenozoic 2176.000 2150.702 BGS LithoStrat Upper
Hordaland Cenozoic 2286.000 2260.702 BGS LithoStrat Upper
Hordaland Cenozoic 2512.000 2486.702 BGS LithoStrat Upper
Hordaland Cenozoic 3152.000 3126.702 BGS LithoStrat Upper
Balder Cenozoic 3229.000 3203.702 BGS LithoStrat Upper
Sele Mesozoic 3274.000 3248.702 BGS LithoStrat Upper
Lista Mesozoic 3329.000 3303.702 BGS LithoStrat Upper
Andrew Cenozoic 3379.000 3353.702 BGS LithoStrat Upper

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-B4 0 0 0 11 11 0 0 0 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
16/21a-B4 Gas shows GS Andrew Sandstone unit 3378.708 -- 136 m thick

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
16/21a-B4 170.68800354003906 3478.834716796875 12 0 2026-08-06 09:20:03.007499+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
16/21a-B4
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 3076.0416 3476.8536000000004 2631
caliper CALI OGA Batch Unzipped 3076.0416 3476.8536000000004 2631
comp_sonic DT OGA Batch Unzipped 170.68800000000002 3468.0144 21637
deep_resistivity RES_DEP OGA Batch Unzipped 170.68800000000002 3474.4152000000004 21674
density_correction DENC OGA Batch Unzipped 3076.0416 3476.8536000000004 2631
gamma_ray GR OGA Batch Unzipped 170.68800000000002 3474.4152000000004 21674
med_resistivity RES_MED OGA Batch Unzipped 170.68800000000002 3474.4152000000004 16693
porosity PHIE OGA Batch Unzipped 3328.416 3459.48 861
shallow_resistivity RES_SLW OGA Batch Unzipped 170.68800000000002 3478.8348 21708
sp SP OGA Batch Unzipped 170.68800000000002 3478.8348 21708
vshale VCLAY OGA Batch Unzipped 3328.416 3459.48 861
water_sat SW OGA Batch Unzipped 3328.5684 3459.48 860

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
16/21a-B4 0 -- -- --

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