Well Data Manager / Well Summary / 16/21a- 11

16/21a- 11

Present

Well Header

Well No
16/21a- 11
NSTA DEN No
2369
Well Name
--
Drill Seq No
11
Quadrant / Block
16 / 21 a
Surface Location
58.244602, 1.068699
Source Datum
ED50
Subsea Well
Yes
Platform
--
Slot No
--
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
1984-04-17
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

16/21a- 11 Original
Plugged View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Unknown
Dev Type
Injector
Convention
--
Primary Target
L
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.298
Ground Elev (m)
--
Water Depth (m)
147.22
TD MD (m)
2432.304
TD TVDSS (m)
2403.652
TD Datum Depth (m)
25.298
TD Datum Type
Kelly Bushing
Spud Date
1984-04-17
TD Reached
1984-05-13
Completion Date
1984-06-04
Release Date
1988-06-04

Formation Tops (14)

Wellbore Formation Era MD (m) TVDSS (m) Provider
16/21a- 11 Horda Cenozoic 1594.000 1568.702 Lloyds Register
Stronsay Cenozoic 1594.000 1568.702 Lloyds Register
Caran Sanstone 1757.000 1731.702 Lloyds Register
Balder Cenozoic 2050.000 2024.702 Lloyds Register
Moray Mesozoic 2050.000 2024.702 Lloyds Register
Balder Tuff Cenozoic 2061.000 2035.702 Lloyds Register
Sele Mesozoic 2079.000 2053.702 Lloyds Register
Montrose Mesozoic 2128.000 2102.702 Lloyds Register
Lista Mesozoic 2128.000 2102.702 Lloyds Register
Balmoral Sandstone Cenozoic 2173.000 2147.702 Lloyds Register
Maureen Mesozoic 2286.000 2260.702 Lloyds Register
Maureen Sandstone Mesozoic 2286.000 2260.702 Lloyds Register
Chalk Mesozoic 2423.000 2397.702 Lloyds Register
Ekofisk Mesozoic 2423.000 2397.702 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
16/21a- 11 4 6 4 18 14 0 4 1 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
16/21a- 11 Oil shows OS FORE 2132.076 -- 37 m thick
16/21a- 11 Oil shows OS Forties Sandstone Member 2169.5664 -- 115 m thick

Rock Samples (53)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
16/21a- 11 Cuttings 243.84 2432.3 -- -- one of various sets
16/21a- 11 Core #1 2147.32 2156.16 ROBERTSON RESEARCH INTERNATIONAL LIMTED NO ANALYSIS .
16/21a- 11 ↳ Core Plug #1 2156.155 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED NO ANALYSIS --
16/21a- 11 ↳ Core Plug #1 2156.155 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED NO ANALYSIS --
16/21a- 11 Core #2 2156.16 2164.81 -- -- .
16/21a- 11 Core #3 2165.3 2173.99 φ 23.0% (n=12) · Kh 271.8 mD (n=12) · Kv 183.0 mD (n=8) · So 36.4% (n=6) · Sw 37.5% (n=6) · Density 2.71 (n=12) · FSP 21.8 (n=6) · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP; RUBBLE; SHALE | SANDSTONE; GENERALLY, AS FOR 15 EXCEPT INCLUDES OCCASIONAL NODULAR PYRITE.; SANDSTONE; GENERALLY, AS FOR 15 EXCEPT INCLUDES OCCASIONAL PYRITE.; SANDSTONE; GENERALLY, AS FOR 15 EXCEPT POOR - MODERATELY CEMENTED; GOOD POROSITY AND INCLUDES PARTLY OPEN FRACTURE.; SANDSTONE; GENERALLY, AS FOR 19 EXCEPT INCLUDES MODERATE SMALL ARGILLACEOUS CLASTS AND OCCASIONAL NODULAR PYRITE.; SANDSTONE; GENERALLY, AS FOR 21 EXCEPT INCLUDES COMMON MICA AND OCCASIONAL ARGILLACEOUS MATERIAL..; SANDSTONE; GENERALLY, AS FOR 21 EXCEPT WELL CEMENTED MODERATELY CEMENTED, OCCASIONAL CARBONACEOUS MATERIAL, OCCASIONAL MICA; MODERATE POROSITY.; SANDSTONE; GREY FINE OCCASIONAL SILT - VERY FINE MATRIX, MODERATELY SORTED, POORLY CEMENTED, OCCASIONAL MICA, RARE CARBONACEOUS MATERIAL, RARE WHITE CLAY MINERAL; VERY GOOD POROSITY.; SANDSTONE; GREY, FINE, OCCASIONAL SILT - FINE MATRIX, MODERATELY SORTED, MODERATELY - WELL CEMENTED BY CALCITE, OCCASIONAL MICA, RARE GLUCONITE; MODERATE POROSITY.; SANDSTONE; GREY, FINE, OCCASIONAL SILTY - VERY FINE MATRIX, MODERATELY SORTED, MODERATELY CEMENTED, OCCASIONAL DARK GREEN MINERAL; MODERATE - GOOD POROSITY. .
16/21a- 11 ↳ Plug 15 2169.566 -- φ 20.0% · Kh 177.0 mD · Kv 125.0 mD · Density 2.66 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GREY, FINE, OCCASIONAL SILTY - VERY FINE MATRIX, MODERATELY SORTED, MODERATELY CEMENTED, OCCASIONAL DARK GREEN MINERAL; MODERATE - GOOD POROSITY. --
16/21a- 11 ↳ Plug 16 2169.871 -- φ 25.5% · Kh 588.0 mD · Kv 380.0 mD · So 46.8% · Sw 36.2% · Density 2.65 · FSP 20.7 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GENERALLY, AS FOR 15 EXCEPT POOR - MODERATELY CEMENTED; GOOD POROSITY AND INCLUDES PARTLY OPEN FRACTURE. --
16/21a- 11 ↳ Plug 17 2170.176 -- φ 18.9% · Kh 174.0 mD · Kv 125.0 mD · So 50.6% · Sw 30.2% · Density 2.77 · FSP 19.6 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GENERALLY, AS FOR 15 EXCEPT INCLUDES OCCASIONAL PYRITE. --
16/21a- 11 ↳ Plug 18 2170.481 -- φ 20.3% · Kh 197.0 mD · Kv 127.0 mD · So 48.1% · Sw 30.1% · Density 2.78 · FSP 18.3 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GENERALLY, AS FOR 15 EXCEPT INCLUDES OCCASIONAL NODULAR PYRITE. --
16/21a- 11 ↳ Plug 19 2170.786 -- φ 31.7% · Kh 397.0 mD · Kv 366.0 mD · Density 2.64 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GREY FINE OCCASIONAL SILT - VERY FINE MATRIX, MODERATELY SORTED, POORLY CEMENTED, OCCASIONAL MICA, RARE CARBONACEOUS MATERIAL, RARE WHITE CLAY MINERAL; VERY GOOD POROSITY. --
16/21a- 11 ↳ Plug 20 2171.09 -- φ 26.5% · Kh 41.0 mD · Kv 28.0 mD · Density 2.80 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GENERALLY, AS FOR 19 EXCEPT INCLUDES MODERATE SMALL ARGILLACEOUS CLASTS AND OCCASIONAL NODULAR PYRITE. --
16/21a- 11 ↳ Plug 21 2171.395 -- φ 17.7% · Kh 2.1 mD · Kv 8.1 mD · So 29.3% · Sw 23.8% · Density 2.71 · FSP 19.6 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GREY, FINE, OCCASIONAL SILT - FINE MATRIX, MODERATELY SORTED, MODERATELY - WELL CEMENTED BY CALCITE, OCCASIONAL MICA, RARE GLUCONITE; MODERATE POROSITY. --
16/21a- 11 ↳ Plug 22 2171.7 -- φ 20.0% · Kh 2.8 mD · Density 2.78 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GENERALLY, AS FOR 21 EXCEPT INCLUDES COMMON MICA AND OCCASIONAL ARGILLACEOUS MATERIAL.. --
16/21a- 11 ↳ Plug 23 2172.005 -- φ 7.7% · Kh 0.2 mD · Density 2.80 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GENERALLY, AS FOR 21 EXCEPT WELL CEMENTED MODERATELY CEMENTED, OCCASIONAL CARBONACEOUS MATERIAL, OCCASIONAL MICA; MODERATE POROSITY. --
16/21a- 11 ↳ Plug 24 2172.31 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED SHALE --
16/21a- 11 ↳ Plug 25 2172.614 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED SHALE --
16/21a- 11 ↳ Plug 26 2172.919 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED SHALE --
16/21a- 11 ↳ Plug 27 2173.224 -- φ 27.3% · Kh 386.0 mD · Kv 305.0 mD · So 24.8% · Sw 42.6% · Density 2.65 · FSP 28.0 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 28 2173.529 -- φ 29.5% · Kh 679.0 mD · Density 2.64 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 29 2173.834 -- φ 30.4% · Kh 617.0 mD · So 18.7% · Sw 62.4% · Density 2.65 · FSP 24.7 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 Core #4 2174.44 2183.59 φ 26.7% (n=29) · Kh 588.9 mD (n=29) · Kv 469.7 mD (n=21) · So 31.4% (n=19) · Sw 35.6% (n=19) · Density 2.65 (n=29) · FSP 27.0 (n=19) · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP; PRESERVED SAMPLE; RUBBLE | SANDSTONE; GENERALLY AS FOR 56 EXCEPT FINE- MEDIUM LOWER.; SANDSTONE; GENERALLY AS FOR 56 EXCEPT INCLUDES NO MICA AND NO CARBONACEOUS MATERIAL.; SANDSTONE; GENERALLY AS FOR 59 EXCEPT SLIGHTLY BETTER CEMENTED AND INCLUDES RARE MICA.; SANDSTONE; GENERALLY AS FOR 59.; SANDSTONE; GREY, FINE - MEDIUM , MODERATE SILTY MATRIX, POORLY SORTED, MODERATELY CEMENTED, RARE MICA, RARE CARBONACEOUS MATERIAL; GOOD POROSITY; OPEN FRACTURE.; SANDSTONE; GREY, FINE - MEDIUM, OCCASIONAL SILTY- VERY FINE MATRIX, POORLY CEMENTED; GOOD POROSITY. .
16/21a- 11 ↳ Plug 31 2174.443 -- φ 28.6% · Kh 392.0 mD · Kv 417.0 mD · So 44.3% · Sw 48.4% · Density 2.64 · FSP 27.3 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 32 2174.748 -- φ 23.7% · Kh 2.2 mD · Density 2.75 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE --
16/21a- 11 ↳ Plug 33 2175.053 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE --
16/21a- 11 ↳ Plug 34 2175.358 -- ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE --
16/21a- 11 ↳ Plug 35 2175.662 -- φ 33.0% · Kh 1320.0 mD · Density 2.64 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 36 2175.967 -- φ 33.7% · Kh 1360.0 mD · Kv 1490.0 mD · So 42.5% · Sw 41.3% · Density 2.64 · FSP 27.3 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 37 2176.272 -- φ 28.0% · Kh 795.0 mD · So 28.8% · Sw 50.2% · Density 2.64 · FSP 31.4 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 38 2176.577 -- φ 28.8% · Kh 1010.0 mD · So 25.4% · Sw 55.3% · Density 2.65 · FSP 26.7 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 39 2176.882 -- φ 29.2% · Kh 1020.0 mD · Density 2.65 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 40 2177.186 -- φ 28.6% · Kh 1096.0 mD · Kv 1120.0 mD · So 32.5% · Sw 40.0% · Density 2.64 · FSP 26.7 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 41 2177.491 -- φ 27.3% · Kh 990.0 mD · Density 2.62 · ROBERTSON RESEARCH INTERNATIONAL LIMTED PRESERVED SAMPLE --
16/21a- 11 ↳ Plug 42 2177.796 -- φ 26.3% · Kh 669.0 mD · Kv 688.0 mD · So 26.9% · Sw 50.0% · Density 2.65 · FSP 27.1 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 43 2178.101 -- φ 25.9% · Kh 588.0 mD · Density 2.65 · ROBERTSON RESEARCH INTERNATIONAL LIMTED PRESERVED SAMPLE --
16/21a- 11 ↳ Plug 44 2178.406 -- φ 26.6% · Kh 584.0 mD · Kv 574.0 mD · So 41.8% · Sw 44.5% · Density 2.65 · FSP 25.6 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 45 2178.71 -- φ 26.5% · Kh 783.0 mD · Kv 672.0 mD · So 35.6% · Sw 20.0% · Density 2.64 · FSP 29.6 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 46 2179.015 -- φ 27.2% · Kh 735.0 mD · Kv 701.0 mD · So 27.0% · Sw 26.4% · Density 2.64 · FSP 26.4 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 47 2179.32 -- φ 26.7% · Kh 627.0 mD · Kv 656.0 mD · So 35.2% · Sw 37.5% · Density 2.65 · FSP 29.2 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 48 2179.625 -- φ 26.0% · Kh 656.0 mD · Kv 665.0 mD · So 35.2% · Sw 27.5% · Density 2.64 · FSP 30.3 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 49 2179.93 -- φ 27.0% · Kh 745.0 mD · Kv 647.0 mD · So 37.6% · Sw 25.8% · Density 2.64 · FSP 28.4 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 50 2180.234 -- φ 26.4% · Kh 624.0 mD · Kv 586.0 mD · So 23.6% · Sw 27.1% · Density 2.65 · FSP 23.6 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 51 2180.539 -- φ 26.4% · Kh 524.0 mD · Kv 439.0 mD · Density 2.65 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 52 2180.844 -- φ 25.9% · Kh 639.0 mD · Kv 632.0 mD · So 44.2% · Sw 36.0% · Density 2.65 · FSP 24.2 · ROBERTSON RESEARCH INTERNATIONAL LIMTED -- --
16/21a- 11 ↳ Plug 53 2181.149 -- φ 27.5% · Kh 916.0 mD · So 13.1% · Sw 40.0% · Density 2.65 · FSP 24.2 · ROBERTSON RESEARCH INTERNATIONAL LIMTED NVP --
16/21a- 11 ↳ Plug 54 2181.454 -- φ 25.7% · Kh 384.0 mD · Kv 241.0 mD · Density 2.66 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE --
16/21a- 11 ↳ Plug 55 2181.758 -- φ 20.1% · Kh 1.9 mD · Kv 2.2 mD · Density 2.73 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE --
16/21a- 11 ↳ Plug 56 2182.063 -- φ 22.4% · Kh 9.4 mD · Kv 3.9 mD · So 16.7% · Sw 24.3% · Density 2.66 · FSP 23.8 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GREY, FINE - MEDIUM , MODERATE SILTY MATRIX, POORLY SORTED, MODERATELY CEMENTED, RARE MICA, RARE CARBONACEOUS MATERIAL; GOOD POROSITY; OPEN FRACTURE. --
16/21a- 11 ↳ Plug 57 2182.368 -- φ 23.7% · Kh 23.0 mD · Kv 16.0 mD · So 39.3% · Sw 20.5% · Density 2.65 · FSP 30.1 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GENERALLY AS FOR 56 EXCEPT FINE- MEDIUM LOWER. --
16/21a- 11 ↳ Plug 58 2182.673 -- φ 25.5% · Kh 142.0 mD · Kv 70.0 mD · So 26.0% · Sw 30.4% · Density 2.65 · FSP 23.4 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GENERALLY AS FOR 56 EXCEPT INCLUDES NO MICA AND NO CARBONACEOUS MATERIAL. --
16/21a- 11 ↳ Plug 59 2182.978 -- φ 26.8% · Kh 186.0 mD · Kv 133.0 mD · So 20.1% · Sw 32.0% · Density 2.64 · FSP 28.1 · ROBERTSON RESEARCH INTERNATIONAL LIMTED SANDSTONE; GREY, FINE - MEDIUM, OCCASIONAL SILTY- VERY FINE MATRIX, POORLY CEMENTED; GOOD POROSITY. --
16/21a- 11 ↳ Plug 60 2183.282 -- φ 27.1% · Kh 214.0 mD · Kv 85.0 mD · Density 2.65 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GENERALLY AS FOR 59. --
16/21a- 11 ↳ Plug 61 2183.587 -- φ 24.3% · Kh 44.0 mD · Kv 26.0 mD · Density 2.65 · ROBERTSON RESEARCH INTERNATIONAL LIMTED RUBBLE | SANDSTONE; GENERALLY AS FOR 59 EXCEPT SLIGHTLY BETTER CEMENTED AND INCLUDES RARE MICA. --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
16/21a- 11 174.04080200195312 2432.303955078125 11 0 2026-08-06 09:18:42.91942+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
16/21a- 11
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 472.1352 2432.304 12858
caliper CALI OGA Batch Unzipped 174.04080000000002 2432.304 14803
comp_sonic DT OGA Batch Unzipped 174.04080000000002 2425.1412 14762
deep_resistivity RES_DEP OGA Batch Unzipped 174.04080000000002 2432.304 14702
density_correction DENC OGA Batch Unzipped 1515.4656 2432.304 6017
gamma_ray GR OGA Batch Unzipped 174.04080000000002 2426.5128 14771
med_resistivity RES_MED OGA Batch Unzipped 174.04080000000002 2432.304 14814
micro_resistivity RES_MIC OGA Batch Unzipped 174.04080000000002 1512.8748 8786
neutron_por NEU OGA Batch Unzipped 1490.1672 2425.5984000000003 6134
shallow_resistivity RES_SLW OGA Batch Unzipped 174.04080000000002 2432.304 14702
sp SP OGA Batch Unzipped 174.04080000000002 2432.304 14814

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
16/21a- 11 0 -- -- --

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