205/21- 1

Decommissioned

Well Header

Well No
205/21- 1
NSTA DEN No
--
Well Name
--
Drill Seq No
1
Quadrant / Block
205 / 21
Surface Location
60.181888, -3.844858
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
SHELL U.K. LIMITED
Original Operator
SHELL/EXXON MOBIL
Sub Area Operator
SHELL U.K. LIMITED
Licence No
P178
Licence Type
Production
Spud Date
1974-01-25
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

205/21- 1 Original
Abandoned Phase 3 Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
--
Dev Type
--
Convention
--
Primary Target
--
Well Seq
--
Datum Type
--
Datum Elev (m)
--
Ground Elev (m)
--
Water Depth (m)
--
TD MD (m)
--
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1974-01-25
TD Reached
1974-01-27
Completion Date
1974-01-27
Release Date
1978-01-27
205/21- 1A Sidetrack A
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
152.10
TD MD (m)
1342.949
TD TVDSS (m)
1367.942
TD Datum Depth (m)
24.994
TD Datum Type
Kelly Bushing
Spud Date
1974-01-30
TD Reached
1974-03-29
Completion Date
1974-04-28
Release Date
1978-04-28

Formation Tops (4)

Wellbore Formation Era MD (m) TVDSS (m) Provider
205/21- 1A Shetland Mesozoic 361.000 336.006 Ternan Atlantic Margin
Cromer Knoll Mesozoic 1247.000 1222.006 Ternan Atlantic Margin
Judd 1343.000 1318.006 Ternan Atlantic Margin
Precambrian Basement 1353.000 1328.006 Ternan Atlantic Margin

Lithology Intervals

205/21- 1A Curve: SANDCOUNT 6 intervals  ·  MD 261.823 – 1360.627 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/WoS_ArcGIS...
Sandstone (3)
Limestone (2)
Metamorphic (1)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
205/21- 1 0 0 0 0 0 0 0 0 0
205/21- 1A 5 2 0 18 4 3 2 1 5 View

Hydrocarbon Occurrence (8)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
205/21- 1A Oil shows OS * 1292.9616 -- 31 m thick
205/21- 1A DST DST 1 -- 1293.27 1367.94 Not used for labelling, multiple DSTs in same play / Lower Cretaceous
205/21- 1A DST DST 1 -- 1293.28 1367.96 Label / Middle Jurassic
205/21- 1A DST DST 1 -- 1293.3 1367.97 Label / Basement
205/21- 1A DST DST 2 -- 1293.31 1309.12 Not used for labelling, multiple DSTs in same play / Lower Cretaceous
205/21- 1A DST DST 3 -- 1293.33 1309.13 Label / Lower Cretaceous
205/21- 1A Oil shows OS * 1342.644 -- 10 m thick
205/21- 1A Oil shows OS BSMT 1353.0072 -- 15 m thick

Rock Samples (84)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
205/21- 1A Cuttings 280.42 1301.5 -- -- .
205/21- 1A Core #1 1303.63 1317.16 φ 16.3% (n=28) · Kh 0.2 mD (n=27) · So 7.8% (n=6) · Sw 87.3% (n=6) · Density 2.64 (n=28) · UNKNOWN LIMESTONE UNSPECIFIED .
205/21- 1A ↳ Plug 01 1303.66 -- φ 13.1% · Kh 0.1 mD · Density 2.68 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 02 1304.331 -- φ 19.1% · Kh 0.4 mD · Density 2.62 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 03 1304.879 -- φ 21.5% · Kh 0.9 mD · So 13.0% · Sw 67.0% · Density 2.63 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 04 1305.245 -- φ 22.4% · Kh 0.4 mD · Density 2.63 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 05 1305.672 -- φ 22.2% · Kh 0.2 mD · Density 2.61 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 06 1306.281 -- φ 15.7% · Kh 0.0 mD · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 07 1306.739 -- φ 12.5% · Kh 0.0 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 08 1307.043 -- φ 21.2% · Kh 0.2 mD · So 1.0% · Sw 99.0% · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 09 1307.653 -- φ 13.1% · Kh 0.3 mD · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 10 1308.019 -- φ 10.0% · Kh 0.2 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 11 1308.445 -- φ 13.3% · Kh 0.1 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 12 1308.964 -- φ 13.4% · Kh 0.0 mD · So 7.0% · Sw 89.0% · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 13 1309.573 -- φ 24.6% · Kh 0.1 mD · Density 2.60 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 14 1309.878 -- φ 27.1% · Kh 0.5 mD · Density 2.61 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 15 1310.457 -- φ 17.8% · Kh 0.2 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 16 1310.914 -- φ 15.1% · Kh 0.2 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 17 1311.341 -- φ 16.4% · So 22.0% · Sw 81.0% · Density 2.63 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 18 1311.585 -- φ 7.9% · Kh 0.0 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 19 1312.103 -- φ 9.2% · Kh 0.1 mD · Density 2.67 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 20 1312.591 -- φ 21.7% · Kh 1.7 mD · So 1.0% · Sw 97.0% · Density 2.63 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 21 1313.231 -- φ 13.8% · Kh 0.0 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 22 1313.932 -- φ 10.4% · Kh 0.0 mD · Density 2.57 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 23 1314.48 -- φ 15.9% · Kh 0.0 mD · Density 2.63 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 24 1314.999 -- φ 15.6% · Kh 0.0 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 25 1315.182 -- φ 16.9% · Kh 0.1 mD · So 3.0% · Sw 91.0% · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 26 1315.791 -- φ 17.5% · Kh 0.0 mD · Density 2.64 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 27 1316.37 -- φ 12.7% · Kh 0.0 mD · Density 2.67 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 28 1317.132 -- φ 17.4% · Kh 0.0 mD · Density 2.64 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A Core #2 1317.16 1365.5 φ 9.6% (n=53) · Kh 2.2 mD (n=50) · So 12.5% (n=13) · Sw 60.1% (n=13) · Density 2.65 (n=53) · UNKNOWN COARSE CLASTICS UNSPECIFIED; IGENEOUS, METAMORPHIC AND VOLCANIC ROCKS; IMPERVIOUS ROCKS IN GENERAL; LIMESTONE UNSPECIFIED .
205/21- 1A ↳ Plug 29 1317.315 -- φ 16.5% · Kh 0.1 mD · So 12.0% · Sw 44.0% · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 30 1318.047 -- φ 23.0% · Kh 0.0 mD · Density 2.62 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 31 1318.809 -- φ 6.8% · Kh 0.0 mD · Density 2.68 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 32 1319.022 -- φ 15.6% · Kh 0.2 mD · So 23.0% · Sw 60.0% · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 33 1319.571 -- φ 16.2% · Kh 0.0 mD · So 21.0% · Sw 59.0% · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 34 1320.881 -- φ 10.5% · Kh 0.0 mD · So 4.0% · Sw 49.0% · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 35 1321.095 -- φ 15.8% · Kh 0.0 mD · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 36 1321.643 -- φ 16.1% · Kh 0.0 mD · Density 2.65 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 37 1321.765 -- φ 14.5% · Kh 0.3 mD · Density 2.64 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 38 1322.558 -- φ 22.2% · Kh 0.1 mD · So 7.0% · Sw 77.0% · Density 2.62 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 39 1323.259 -- φ 5.2% · Kh 0.0 mD · Density 2.68 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 40 1323.838 -- φ 15.8% · Kh 0.0 mD · Density 2.61 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 41 1324.265 -- φ 13.3% · Kh 0.3 mD · So 0.0% · Sw 100.0% · Density 2.63 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 42 1324.752 -- φ 11.0% · Kh 4.9 mD · Density 2.66 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 43 1325.667 -- φ 12.7% · Density 2.65 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 44 1326.185 -- φ 15.2% · Density 2.64 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 45 1327.16 -- φ 13.5% · Kh 22.0 mD · Density 2.71 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 46 1327.556 -- φ 14.7% · Kh 18.0 mD · Density 2.64 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 47 1328.166 -- φ 12.8% · Kh 12.0 mD · Density 2.57 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 48 1332.281 -- φ 7.9% · Kh 0.5 mD · So 7.0% · Sw 85.0% · Density 2.62 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 49 1332.708 -- φ 7.5% · Kh 0.0 mD · Density 2.68 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 50 1333.195 -- φ 7.7% · Density 2.69 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 51 1334.353 -- φ 10.5% · Kh 0.5 mD · Density 2.67 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 52 1334.963 -- φ 9.6% · Kh 0.0 mD · Density 2.68 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 53 1335.695 -- φ 13.6% · Kh 0.1 mD · Density 2.66 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 54 1336.335 -- φ 5.4% · Kh 0.0 mD · Density 2.69 · UNKNOWN LIMESTONE UNSPECIFIED --
205/21- 1A ↳ Plug 55 1337.005 -- φ 8.2% · Kh 0.0 mD · Density 2.68 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 56 1337.645 -- φ 8.9% · Kh 0.0 mD · Density 2.70 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 57 1338.407 -- φ 15.5% · Kh 0.7 mD · Density 2.67 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 58 1338.925 -- φ 18.1% · Kh 31.0 mD · Density 2.66 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 59 1339.566 -- φ 16.9% · Kh 12.0 mD · So 0.0% · Sw 100.0% · Density 2.72 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 60 1339.748 -- φ 13.1% · Kh 0.1 mD · Density 2.64 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 61 1343.985 -- φ 8.4% · Kh 0.5 mD · Density 2.63 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 62 1344.168 -- φ 7.5% · Kh 0.1 mD · So 8.0% · Sw 92.0% · Density 2.63 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 63 1344.869 -- φ 9.4% · Kh 3.5 mD · Density 2.68 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 64 1345.57 -- φ 6.9% · Kh 0.1 mD · So 15.0% · Sw 38.0% · Density 2.67 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 65 1345.844 -- φ 5.7% · Kh 0.1 mD · Density 2.62 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 66 1346.454 -- φ 7.0% · Kh 0.5 mD · Density 2.62 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 67 1346.972 -- φ 5.2% · Kh 0.1 mD · Density 2.64 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 68 1347.307 -- φ 3.1% · Kh 0.0 mD · Density 2.66 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 69 1347.826 -- φ 11.0% · Kh 1.0 mD · So 12.0% · Sw 32.0% · Density 2.60 · UNKNOWN COARSE CLASTICS UNSPECIFIED --
205/21- 1A ↳ Plug 70 1348.313 -- φ 5.9% · Kh 0.4 mD · Density 2.59 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 71 1348.984 -- φ 3.4% · Kh 0.0 mD · Density 2.64 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 72 1349.411 -- φ 3.1% · Kh 0.0 mD · So 38.0% · Sw 20.0% · Density 2.66 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 73 1350.051 -- φ 2.4% · Kh 0.0 mD · Density 2.65 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 74 1350.843 -- φ 1.6% · Kh 0.1 mD · Density 2.63 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 75 1351.361 -- φ 3.0% · Kh 0.0 mD · Density 2.60 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 76 1351.544 -- φ 6.5% · Kh 0.1 mD · So 15.0% · Sw 25.0% · Density 2.67 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 77 1352.306 -- φ 1.4% · Kh 0.0 mD · Density 2.64 · UNKNOWN IMPERVIOUS ROCKS IN GENERAL --
205/21- 1A ↳ Plug 78 1353.464 -- φ 2.2% · Kh 0.0 mD · Density 2.66 · UNKNOWN IGENEOUS, METAMORPHIC AND VOLCANIC ROCKS --
205/21- 1A ↳ Plug 79 1354.226 -- φ 0.4% · Kh 0.0 mD · Density 2.67 · UNKNOWN IGENEOUS, METAMORPHIC AND VOLCANIC ROCKS --
205/21- 1A ↳ Plug 80 1355.049 -- φ 0.3% · Kh 0.0 mD · Density 2.70 · UNKNOWN IGENEOUS, METAMORPHIC AND VOLCANIC ROCKS --
205/21- 1A ↳ Plug 81 1356.421 -- φ 0.8% · Kh 0.0 mD · Density 2.67 · UNKNOWN IGENEOUS, METAMORPHIC AND VOLCANIC ROCKS --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
205/21- 1A 259.0799865722656 1360.017578125 10 0 2026-08-06 10:01:42.1186+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
205/21- 1A
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DENS UKCS JDWL 30th Round 270.6624 1360.0176000000001 6555
caliper CALI UKCS JDWL 30th Round 270.6624 1360.0176000000001 6484
comp_sonic DTC UKCS JDWL 30th Round 259.99440000000004 1356.9696000000001 6983
deep_resistivity RDEP UKCS JDWL 30th Round 259.99440000000004 1356.3600000000001 7192
deep_resistivity LLD UKCS JDWL 30th Round 1178.3568 1356.3600000000001 1168
density_correction DENC UKCS JDWL 30th Round 259.68960000000004 1360.0176000000001 7217
gamma_ray GR UKCS JDWL 30th Round 259.08000000000004 1356.9696000000001 7202
micro_resistivity RMIC UKCS JDWL 30th Round 259.68960000000004 1357.2744 7175
neutron_por NEUT UKCS JDWL 30th Round 259.68960000000004 1360.0176000000001 7208
shallow_resistivity LLS UKCS JDWL 30th Round 1178.3568 1356.3600000000001 1168
shallow_resistivity SFL UKCS JDWL 30th Round 259.99440000000004 1179.2712000000001 6032
sp SP UKCS JDWL 30th Round 259.99440000000004 1350.5688 7138

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
205/21- 1 0 -- -- --
205/21- 1A 0 -- -- --

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