21/09- 5

Decommissioned

Well Header

Well No
21/09- 5
NSTA DEN No
4198
Well Name
--
Drill Seq No
5
Quadrant / Block
21 / 9
Surface Location
57.681958, 0.764513
Source Datum
ED50
Subsea Well
Yes
Platform
--
Slot No
--
Operator
APACHE NORTH SEA LIMITED
Original Operator
--
Sub Area Operator
APACHE NORTH SEA LIMITED
Licence No
P57
Licence Type
Production
Spud Date
1990-09-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

21/09- 5 Original
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
JA
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
116.90
TD MD (m)
760.000
TD TVDSS (m)
734.000
TD Datum Depth (m)
25.900
TD Datum Type
Kelly Bushing
Spud Date
1990-09-22
TD Reached
1990-10-08
Completion Date
1990-10-30
Release Date
1994-10-30
21/09- 5A Sidetrack A parent: 21/09- 5
Abandoned Phase 3 View Log Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
JA
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
--
Ground Elev (m)
--
Water Depth (m)
143.10
TD MD (m)
2276.000
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1990-09-30
TD Reached
1990-10-08
Completion Date
1990-10-13
Release Date
1994-10-13

Formation Tops (13)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/09- 5 Unknown 143.000 117.000 BGS LithoStrat Upper
Nordland Cenozoic 766.000 740.000 BGS LithoStrat Upper
Nordland Cenozoic 766.000 740.000 BGS LithoStrat Upper
Hordaland Cenozoic 2112.000 2086.000 BGS LithoStrat Upper
Hordaland Cenozoic 2112.000 2086.000 BGS LithoStrat Upper
Balder Cenozoic 2123.000 2097.000 BGS LithoStrat Upper
Balder Cenozoic 2124.000 2098.000 BGS LithoStrat Upper
Sele Mesozoic 2150.000 2124.000 BGS LithoStrat Upper
Sele Mesozoic 2150.000 2124.000 BGS LithoStrat Upper
Forties Mesozoic 2172.000 2146.000 BGS LithoStrat Upper
Forties Mesozoic 2172.000 2146.000 BGS LithoStrat Upper
Andrew Cenozoic 2219.000 2193.000 BGS LithoStrat Upper
Andrew Cenozoic 2219.000 2193.000 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
21/09- 5 0 0 0 7 13 1 1 1 0 View
21/09- 5A 0 0 0 0 0 0 0 0 0

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (44)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/09- 5 Core #1 673.88 2210.9 φ 29.9% (n=25) · Kh 404.3 mD (n=20) · Kv 347.7 mD (n=4) · So 11.8% (n=25) · Sw 65.6% (n=25) · Density 2.66 (n=25) · COREX SERVICES DAMAGED; Permeability Measured Using Corec Service's Digitial Probe Permeameter; Preserved Sample; Rubble; Shale | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 673.882 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Core Plug #1 674.004 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Plug ETA 32 674.023 -- φ 27.7% · Kh 119.0 mD · So 7.2% · Sw 82.4% · Density 2.64 · COREX SERVICES Permeability Measured Using Corec Service's Digitial Probe Permeameter | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 33 674.08 -- φ 31.4% · Kh 718.0 mD · Kv 446.0 mD · So 22.0% · Sw 44.3% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 34 674.163 -- φ 32.8% · Kh 323.0 mD · So 3.8% · Sw 83.8% · Density 2.65 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 674.19 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Core Plug #1 674.282 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Plug ETA 36 674.333 -- φ 29.6% · Kh 48.5 mD · So 30.3% · Sw 53.2% · Density 2.63 · COREX SERVICES Permeability Measured Using Corec Service's Digitial Probe Permeameter | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 37 674.394 -- φ 27.9% · Kh 12.9 mD · So 4.9% · Sw 66.6% · Density 2.56 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 38 674.458 -- φ 29.4% · Kh 17.4 mD · Kv 55.5 mD · So 3.0% · Sw 84.0% · Density 2.65 · COREX SERVICES Permeability Measured Using Corec Service's Digitial Probe Permeameter | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 39 674.528 -- φ 30.2% · Kh 235.0 mD · So 0.0% · Sw 91.6% · Density 2.65 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 40 674.62 -- φ 31.8% · Kh 708.0 mD · So 0.0% · Sw 56.5% · Density 2.63 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 41 674.684 -- φ 32.6% · Kh 1150.0 mD · So 19.2% · Sw 52.1% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 42 674.778 -- φ 34.1% · Kh 161.0 mD · So 0.0% · Sw 73.4% · Density 2.66 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 674.797 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Core Plug #1 674.885 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Plug ETA 44 674.925 -- φ 32.3% · Kh 1150.0 mD · Kv 889.0 mD · So 37.8% · Sw 55.3% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 45 675.004 -- φ 30.9% · Kh 666.0 mD · So 23.7% · Sw 72.7% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 46 675.077 -- φ 31.3% · Kh 719.0 mD · So 7.3% · Sw 79.6% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 675.098 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Core Plug #1 675.19 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Plug ETA 48 675.226 -- φ 13.6% · Kh 0.6 mD · Kv 0.3 mD · So 1.5% · Sw 58.8% · Density 2.66 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 49 675.306 -- φ 30.7% · Kh 78.5 mD · So 3.8% · Sw 81.6% · Density 2.65 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 50 675.385 -- φ 30.5% · Kh 292.0 mD · So 8.1% · Sw 71.3% · Density 2.68 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 51 675.467 -- φ 26.5% · Kh 25.7 mD · So 21.7% · Sw 55.0% · Density 2.67 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 52 675.543 -- φ 26.8% · Kh 44.3 mD · So 2.4% · Sw 71.0% · Density 2.82 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 53 675.595 -- φ 26.8% · So 0.0% · Sw 69.7% · Density 2.83 · COREX SERVICES DAMAGED | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 675.711 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Core Plug #1 675.803 -- COREX SERVICES Preserved Sample --
21/09- 5 ↳ Plug ETA 58 675.985 -- φ 31.2% · So 0.0% · Sw 76.8% · Density 2.77 · COREX SERVICES DAMAGED | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 59 676.089 -- φ 34.4% · Kh 957.0 mD · So 23.8% · Sw 55.5% · Density 2.63 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 60 676.123 -- COREX SERVICES Shale --
21/09- 5 ↳ Plug ETA 61 676.177 -- φ 34.2% · So 21.8% · Sw 61.4% · Density 2.63 · COREX SERVICES DAMAGED | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 62 676.278 -- φ 33.1% · Kh 660.0 mD · So 34.9% · Sw 48.9% · Density 2.64 · COREX SERVICES Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Plug ETA 63 676.369 -- φ 28.2% · So 0.0% · Sw 72.4% · Density 2.63 · COREX SERVICES DAMAGED | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 676.412 -- COREX SERVICES Shale --
21/09- 5 ↳ Core Plug #1 676.565 -- COREX SERVICES Shale --
21/09- 5 ↳ Plug ETA 66 676.58 -- φ 29.0% · So 18.1% · Sw 21.0% · Density 2.64 · COREX SERVICES DAMAGED | Klinkenberg Corrected Permeability Values. Obtained from Empirical Tables --
21/09- 5 ↳ Core Plug #1 676.595 -- COREX SERVICES Shale --
21/09- 5 ↳ Core Plug #1 676.894 -- COREX SERVICES Shale --
21/09- 5 ↳ Core Plug #1 676.897 -- COREX SERVICES Rubble --
21/09- 5 ↳ Core Plug #1 676.991 -- COREX SERVICES Rubble --
21/09- 5 Cuttings 768.0 2280.0 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/09- 5A 97.99320220947266 2266.03564453125 9 0 2026-08-06 10:11:39.061838+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/09- 5A
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 761.0856 2261.7684 9848
caliper CALI CGG Digital Well Logs 761.0856 2261.7684 9848
caliper CAL CGG Digital Well Logs 761.0856 2245.3092 9740
comp_sonic DT CGG Digital Well Logs 761.238 2253.996 9721
deep_resistivity ILD CGG Digital Well Logs 761.238 2265.2736 9870
density_correction DRHO CGG Digital Well Logs 761.0856 2261.7684 9848
gamma_ray GRD CGG Digital Well Logs 742.0356 2253.8436 9921
gamma_ray GR CGG Digital Well Logs 97.9932 2257.044 14168
med_resistivity ILM CGG Digital Well Logs 761.238 2266.0356 9875
neutron_por NPHI CGG Digital Well Logs 761.0856 2256.7392 9815
pef PEF CGG Digital Well Logs 761.0856 2261.7684 9848

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/09- 5 0 -- -- --
21/09- 5A 283 2276.000 2275.332 D:\BigSpatial\nsta_raw\CGG_Deviation\21-9-5A 11929an_CGG-Deviation.xlsx

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