Well Data Manager / Well Summary / 21/23c- 5

21/23c- 5

Decommissioned

Well Header

Well No
21/23c- 5
NSTA DEN No
4435
Well Name
--
Drill Seq No
5
Quadrant / Block
21 / 23 c
Surface Location
57.311926, 0.439222
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
EQUINOR UK LIMITED
Original Operator
--
Sub Area Operator
EQUINOR UK LIMITED
Licence No
P651
Licence Type
Production
Spud Date
1991-08-03
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/23c- 5 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
84.12
TD MD (m)
2371.954
TD TVDSS (m)
2346.960
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1991-08-03
TD Reached
1991-08-27
Completion Date
1991-09-02
Release Date
1995-09-02

Formation Tops (19)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/23c- 5 Horda Cenozoic 1447.000 764.501 Lloyds Register
Stronsay Cenozoic 1447.000 764.501 Lloyds Register
Upper Tay Sandstone 1619.000 936.495 Lloyds Register
Lower Tay Sandstone 1720.000 1037.495 Lloyds Register
Lista Mesozoic 1792.000 1109.493 Lloyds Register
Montrose Mesozoic 1792.000 1109.493 Lloyds Register
Balmoral Sandstone Cenozoic 1799.000 1116.493 Lloyds Register
Maureen Mesozoic 1871.000 1188.491 Lloyds Register
Ekofisk Mesozoic 1951.000 1268.490 Lloyds Register
Chalk Mesozoic 1951.000 1268.490 Lloyds Register
Upper Cretaceous Chalk Mesozoic 1989.000 1306.489 Lloyds Register
Rodby Mesozoic 2185.000 1502.486 Lloyds Register
Cromer Knoll Mesozoic 2185.000 1502.486 Lloyds Register
Sola 2222.000 1539.486 Lloyds Register
Valhall Mesozoic 2232.000 1549.486 Lloyds Register
Kimmeridge Clay 2305.000 1622.471 Lloyds Register
Humber Mesozoic 2305.000 1622.471 Lloyds Register
Heron Palaeozoic 2338.000 1655.454 Lloyds Register
Smith Bank Mesozoic 2338.000 1655.454 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
21/23c- 5 6 10 3 23 19 3 1 1 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (34)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
21/23c- 5 Cuttings 676.66 2371.34 -- -- .
21/23c- 5 Core #1 1622.15 1639.06 φ 35.9% (n=30) · Kh 8941.9 mD (n=21) · Kv 7846.0 mD (n=5) · Density 2.65 (n=30) · ROBERTSON GROUP PLC DAMAGED; SAMPLE FAILED .
21/23c- 5 ↳ Plug 03 1622.755 -- φ 37.4% · Kh 6920.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 3V 1622.862 -- φ 33.3% · Kv 8750.0 mD · Density 2.64 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 05 1623.411 -- φ 36.8% · Kh 11800.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 07 1624.127 -- ROBERTSON GROUP PLC SAMPLE FAILED --
21/23c- 5 ↳ Plug 09 1624.569 -- φ 36.6% · Kh 3480.0 mD · Density 2.64 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 11 1625.117 -- φ 36.6% · Kh 10500.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 13 1625.742 -- φ 36.6% · Kh 6220.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 13V 1625.895 -- φ 36.1% · Kv 5970.0 mD · Density 2.67 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 15 1626.428 -- φ 35.1% · Kh 9660.0 mD · Density 2.66 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 17 1627.099 -- φ 36.5% · Kh 10300.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 19 1627.754 -- φ 35.0% · Kh 6280.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 21 1628.12 -- φ 33.9% · Kh 9700.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 23 1628.775 -- φ 36.3% · Density 2.66 · ROBERTSON GROUP PLC DAMAGED --
21/23c- 5 ↳ Plug 23V 1629.004 -- φ 34.4% · Kv 7220.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 25 1629.369 -- φ 38.4% · Kh 13400.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 27 1630.07 -- φ 37.3% · Kh 13400.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 29 1630.71 -- φ 37.3% · Density 2.65 · ROBERTSON GROUP PLC DAMAGED --
21/23c- 5 ↳ Plug 31 1631.198 -- ROBERTSON GROUP PLC SAMPLE FAILED --
21/23c- 5 ↳ Plug 33V 1631.777 -- φ 36.7% · Kv 11800.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 33 1631.991 -- φ 38.1% · Density 2.64 · ROBERTSON GROUP PLC DAMAGED --
21/23c- 5 ↳ Plug 35 1632.555 -- φ 36.9% · Kh 9330.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 37 1632.981 -- φ 35.3% · Density 2.65 · ROBERTSON GROUP PLC DAMAGED --
21/23c- 5 ↳ Plug 39 1633.606 -- φ 36.2% · Kh 8280.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 41 1634.155 -- φ 32.8% · Kh 2960.0 mD · Density 2.66 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 43 1635.039 -- φ 34.6% · Kh 2740.0 mD · Density 2.66 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 45 1635.648 -- φ 36.1% · Kh 10500.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 48 1636.105 -- φ 35.3% · Kh 8630.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 50 1636.989 -- φ 35.4% · Kh 11500.0 mD · Density 2.66 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 53 1637.873 -- φ 36.1% · Kh 10500.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 53V 1638.026 -- φ 35.9% · Kv 5490.0 mD · Density 2.66 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 55 1638.498 -- φ 36.1% · Kh 11800.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --
21/23c- 5 ↳ Plug 56 1638.864 -- φ 34.3% · Kh 9880.0 mD · Density 2.65 · ROBERTSON GROUP PLC -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/23c- 5 93.57360076904297 2373.4775390625 11 0 2026-08-06 17:28:22.53636+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/23c- 5
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density ZDEN CGG Digital Well Logs 1530.2484000000002 2373.3252 5468
caliper CAL CGG Digital Well Logs 1530.2484000000002 2371.8012000000003 5396
comp_sonic AC CGG Digital Well Logs 656.5392 2363.1144 6798
deep_resistivity RILD CGG Digital Well Logs 657.3012 2369.6676 6880
density_correction ZCOR CGG Digital Well Logs 1530.8580000000002 2373.3252 5462
gamma_ray GR CGG Digital Well Logs 93.5736 2367.6864 14923
gamma_ray GRD CGG Digital Well Logs 1502.664 2367.6864 5677
med_resistivity RILM CGG Digital Well Logs 656.9964 2369.9724 6916
neutron_por CNC CGG Digital Well Logs 1530.2484000000002 2367.9912 5326
pef PE CGG Digital Well Logs 1530.4008000000001 2373.4776 5468
potassium K CGG Digital Well Logs 1502.5116 2367.6864 5678
shallow_resistivity RFOC CGG Digital Well Logs 656.6916 879.1956 1461
sp SP CGG Digital Well Logs 656.5392 876.1476 1442
thorium TH CGG Digital Well Logs 1502.5116 2367.9912 5680

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/23c- 5 65 2371.954 1689.381 D:\BigSpatial\nsta_raw\CGG_Deviation\21-23c-5 15129as_CGG-Deviation.xlsx

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