Well Data Manager / Well Summary / 16/28-A11

16/28-A11

Present

Well Header

Well No
16/28-A11
NSTA DEN No
6309
Well Name
--
Drill Seq No
11
Quadrant / Block
16 / 28
Surface Location
58.046945, 1.402681
Source Datum
ED50
Subsea Well
Unknown
Platform
A
Slot No
9
Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Original Operator
--
Sub Area Operator
BP EXPLORATION OPERATING COMPANY LIMITED
Licence No
P92
Licence Type
Production
Spud Date
1998-01-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

16/28-A11 Original
Abandoned Phase 1 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
LC
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
48.670
Ground Elev (m)
--
Water Depth (m)
116.03
TD MD (m)
3273.000
TD TVDSS (m)
2820.500
TD Datum Depth (m)
48.670
TD Datum Type
Kelly Bushing
Spud Date
1998-01-03
TD Reached
1998-03-01
Completion Date
1998-08-03
Release Date
2002-08-03
16/28-A11Z Sidetrack Z parent: 16/28-A11
Completed (Operating) View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
LC
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
48.670
Ground Elev (m)
--
Water Depth (m)
116.03
TD MD (m)
4310.000
TD TVDSS (m)
3803.000
TD Datum Depth (m)
48.670
TD Datum Type
Kelly Bushing
Spud Date
1998-03-01
TD Reached
1998-05-04
Completion Date
1998-12-21
Release Date
2002-12-21

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
16/28-A11 Claret Sand 558.000 340.758 BGS LithoStrat Upper
Claret Sand 564.000 346.598 BGS LithoStrat Upper
Blue Sand 862.000 625.502 BGS LithoStrat Upper
Miocene Sand 1141.000 873.843 BGS LithoStrat Upper
Miocene Sand 1220.000 944.579 BGS LithoStrat Upper
Miocene Sand 2221.000 1844.012 BGS LithoStrat Upper
Miocene Sand 2414.000 2002.685 BGS LithoStrat Upper
Balder Cenozoic 2661.000 2183.146 BGS LithoStrat Upper
Sele Mesozoic 2694.000 2206.960 BGS LithoStrat Upper
Forties Mesozoic 2736.000 2237.249 BGS LithoStrat Upper
Andrew Shale Unit Palaeozoic 2752.000 2248.790 BGS LithoStrat Upper
Andrew Sands A1 Mesozoic 2787.000 2273.981 BGS LithoStrat Upper
Andrew Sands A2 Mesozoic 2797.000 2281.134 BGS LithoStrat Upper
Andrew Sands A3 Mesozoic 2850.000 2318.708 BGS LithoStrat Upper
Andrew Sands B1 Mesozoic 2856.000 2322.914 BGS LithoStrat Upper
Andrew Sands B2 Mesozoic 2911.000 2361.029 BGS LithoStrat Upper
Andrew Sands C Mesozoic 2991.000 2415.543 BGS LithoStrat Upper
Maureen Mesozoic 3123.000 2505.062 BGS LithoStrat Upper
Ekofisk Mesozoic 3258.000 2597.732 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
16/28-A11 0 0 0 19 19 0 0 1 0 View
16/28-A11Z 0 0 0 0 0 0 4 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (6)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
16/28-A11 Cuttings 2670.0 3120.0 -- -- wet samples - curated June'98 to fill gap
16/28-A11Z Cuttings 2260.0 4310.0 -- -- wet samples - curated June'98 to fill gap
16/28-A11Z Core #1 4092.0 4120.8 -- -- --
16/28-A11Z Core #2 4123.0 4133.7 -- -- --
16/28-A11Z Core #3 4134.0 4164.9 -- -- --
16/28-A11Z Core #4 4165.0 4176.2 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
16/28-A11 137.9219970703125 3248.253662109375 4 0 2026-08-06 09:33:41.240628+00 View Log
16/28-A11Z 137.9219970703125 4335.01806640625 11 0 2026-08-08 00:58:05.6082+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
16/28-A11
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
comp_sonic DT OGA Batch Unzipped 1285.0368 2346.198 6698
deep_resistivity RES_DEP OGA Batch Unzipped 1285.0368 2346.198 6964
gamma_ray GR OGA Batch Unzipped 137.922 3248.2536 20410
med_resistivity RES_MED OGA Batch Unzipped 1285.0368 2346.198 6964
shear_sonic DTSM OGA Batch Unzipped 1285.0368 2346.198 169
16/28-A11Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB OGA Batch Unzipped 4037.053347053 4309.984319333 1792
bulk_density DEN OGA Batch Unzipped 3184.7028 4335.018 7549
caliper CALI OGA Batch Unzipped 3184.7028 4335.018 7549
comp_sonic DT OGA Batch Unzipped 3166.5672 4302.5568 7376
deep_resistivity RES_DEP OGA Batch Unzipped 1269.3396 4335.018 20054
density_correction DENC OGA Batch Unzipped 3184.7028 4335.018 7549
gamma_ray GR OGA Batch Unzipped 137.922 4335.018 27541
med_resistivity RES_MED OGA Batch Unzipped 1269.3396 4335.018 20054
pef PEF OGA Batch Unzipped 3184.7028 4335.018 7549
porosity PHIE OGA Batch Unzipped 4037.053347053 4297.94548806 1713
porosity PHIT OGA Batch Unzipped 4037.66290813 4309.222367987 1709
shear_sonic DTSM OGA Batch Unzipped 3184.398 4302.8616 7040
tvdss TVDSS OGA Batch Unzipped 4037.053347053 4309.984319333 1792
vshale VSH OGA Batch Unzipped 4037.053347053 4309.984319333 1792
water_sat SWE OGA Batch Unzipped 4037.053347053 4307.546075025 1776
water_sat SWT OGA Batch Unzipped 4088.256477531 4267.619824473 1140

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
16/28-A11 184 3273.000 2608.103 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_28-A11\WELL_PATH\WDD_QC\16_28-A11_wdd_WDD_FILE_1683449_DATACO_MAPPED.csv
16/28-A11Z 346 4310.000 3631.113 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_16\16_28-A11Z\WELL_PATH\WDD_QC\16_28-A11Z_wdd_WDD_FILE_1683450_DATACO_MAPPED.csv

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