Well Data Manager / Well Summary / 211/21- 4

211/21- 4

Decommissioned

Well Header

Well No
211/21- 4
NSTA DEN No
--
Well Name
--
Drill Seq No
4
Quadrant / Block
211 / 21
Surface Location
61.277226, 1.129574
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
P232
Licence Type
Production
Spud Date
1975-11-30
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

211/21- 4 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
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
1975-11-30
TD Reached
1975-12-02
Completion Date
1975-12-02
Release Date
1979-12-02
211/21- 4A Sidetrack A
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.908
Ground Elev (m)
--
Water Depth (m)
159.72
TD MD (m)
3026.091
TD TVDSS (m)
2999.671
TD Datum Depth (m)
25.908
TD Datum Type
Kelly Bushing
Spud Date
1975-12-03
TD Reached
1976-01-21
Completion Date
1976-02-02
Release Date
1980-02-02

Formation Tops (5)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/21- 4A Shetland Mesozoic 1652.000 1626.063 Ternan
Brent Mesozoic 2847.000 2820.684 Ternan
Cook Mesozoic 2933.000 2906.648 Ternan
Nansen Mesozoic 2981.000 2954.617 Ternan
Cormorant Mesozoic 2988.000 2961.611 Ternan

Lithology Intervals

211/21- 4A Curve: SANDCOUNT 87 intervals  ·  MD 542.392 – 3011.119 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NNS, ESP, ...
Limestone (60)
Sandstone (27)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
211/21- 4 0 0 0 1 0 0 0 0 0 View
211/21- 4A 0 0 0 27 5 0 2 1 0 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
211/21- 4A Oil O Tarbert Formation 2847.4416 -- 18 m thick
211/21- 4A Oil O Ness Formation 2865.1200000000003 -- 21 m thick

Rock Samples (21)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/21- 4A Cuttings 536.45 3025.44 -- -- .
211/21- 4A Core #1 2882.8 2889.81 φ 19.3% (n=7) · Kh 565.3 mD (n=7) · Density 2.65 (n=7) · CORE LABORATORIES. INC. SS, LT GY, CG, MOD STD, QTZ SLT MX, NON-CALC, TR MICA.; SS, PA GY/BF, F-MG, W STD, QTZ SLT MX, NON-CALC, TR MICA,; SS, PA GY/BF, MG, W STD, FRI FRI, NON-CALC, TR MICA.; SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. .
211/21- 4A ↳ Plug 01 2883.356 -- φ 21.1% · Kh 1348.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI FRI, NON-CALC, TR MICA. --
211/21- 4A ↳ Plug 02 2884.981 -- φ 15.8% · Kh 91.0 mD · Density 2.66 · CORE LABORATORIES. INC. SS, LT GY, CG, MOD STD, QTZ SLT MX, NON-CALC, TR MICA. --
211/21- 4A ↳ Plug 03 2885.895 -- φ 16.0% · Kh 105.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, F-MG, W STD, QTZ SLT MX, NON-CALC, TR MICA, --
211/21- 4A ↳ Plug 04 2886.962 -- φ 21.3% · Kh 519.0 mD · Density 2.64 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. --
211/21- 4A ↳ Plug 05 2888.105 -- φ 20.2% · Kh 756.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. --
211/21- 4A ↳ Plug 06 2888.943 -- φ 21.5% · Kh 577.0 mD · Density 2.64 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. --
211/21- 4A ↳ Plug 07 2889.781 -- φ 19.2% · Kh 561.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. --
211/21- 4A Core #2 2889.81 2910.23 φ 19.6% (n=11) · Kh 250.8 mD (n=11) · Density 2.65 (n=11) · CORE LABORATORIES. INC. SS, PA GY/BF, F-MG, FR W STD, QTZ SLT MX, NON-CALC, FNTLY BNDD MICA W/CR BND.; SS, PA GY/BF, F-MG, FR W STD, QTZ SLT MX, NON-CALC, FNTLY BNDD MICA.; SS, PA GY/BF, FG, W STD, QTZ SLT MX, NON-CALC, TR MICA.; SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY.; SS, PA GY/BF, MG, W STD, QTZ SLT MX, NON-CALC, TR MICA.; SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY.; SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, TR PY. .
211/21- 4A ↳ Plug 08 2890.723 -- φ 21.9% · Kh 501.0 mD · Density 2.64 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, FRI, NON-CALC, TR MICA, TR PY. --
211/21- 4A ↳ Plug 09 2891.485 -- φ 22.7% · Kh 153.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, FG, W STD, QTZ SLT MX, NON-CALC, TR MICA. --
211/21- 4A ↳ Plug 10 2892.677 -- φ 25.1% · Kh 843.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, MG, W STD, QTZ SLT MX, NON-CALC, TR MICA. --
211/21- 4A ↳ Plug 11 2894.329 -- φ 22.5% · Kh 172.0 mD · Density 2.64 · CORE LABORATORIES. INC. SS, PA GY/BF, F-MG, FR W STD, QTZ SLT MX, NON-CALC, FNTLY BNDD MICA. --
211/21- 4A ↳ Plug 12 2895.981 -- φ 24.5% · Kh 1010.0 mD · Density 2.64 · CORE LABORATORIES. INC. SS, PA GY/BF, F-MG, FR W STD, QTZ SLT MX, NON-CALC, FNTLY BNDD MICA W/CR BND. --
211/21- 4A ↳ Plug 13 2897.758 -- φ 15.7% · Kh 7.2 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, TR PY. --
211/21- 4A ↳ Plug 14 2900.297 -- φ 15.5% · Kh 7.2 mD · Density 2.66 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY. --
211/21- 4A ↳ Plug 15 2901.973 -- φ 15.5% · Kh 13.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY. --
211/21- 4A ↳ Plug 16 2905.277 -- φ 17.9% · Kh 19.0 mD · Density 2.66 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY. --
211/21- 4A ↳ Plug 17 2907.765 -- φ 17.9% · Kh 15.0 mD · Density 2.66 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY. --
211/21- 4A ↳ Plug 18 2909.24 -- φ 16.9% · Kh 18.0 mD · Density 2.65 · CORE LABORATORIES. INC. SS, PA GY/BF, VFG, W STD, QTZ SLT MX, NON-CALC, EXT MICA, ALSO MICA LAMS, TR PY. --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/21- 4A 211.2263946533203 3019.95849609375 10 0 2026-08-06 11:13:43.491064+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/21- 4A
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
apparent_water_resistivity RWA Energective CorrectedLOGS 526.0848 3010.2048 1377
bulk_density CDEN Energective CorrectedLOGS 519.6840000000001 3019.6536 13932
bulk_density DEN OGA Batch Unzipped 493.776 3047.0856000000003 16755
caliper CALI OGA Batch Unzipped 493.776 1144.9812 4274
caliper CLD Energective CorrectedLOGS 493.776 1136.7516 4220
comp_sonic DT OGA Batch Unzipped 511.1496 3038.856 16587
comp_sonic DTC Energective CorrectedLOGS 531.7236 3019.9584 13766
deep_resistivity RES_DEP OGA Batch Unzipped 2847.4416 2925.6228 514
deep_resistivity ILD Energective CorrectedLOGS 524.4084 3019.9584 13728
density_correction CDRH Energective CorrectedLOGS 1526.7432000000001 3019.3488 9795
density_correction DENC OGA Batch Unzipped 1516.2276000000002 3019.3488 9864
gamma_ray GRI Energective CorrectedLOGS 211.2264 3010.6620000000003 18370
gamma_ray GR OGA Batch Unzipped 493.776 3016.9104 16557
neutron_por NEU OGA Batch Unzipped 1666.9512 3015.6912 8851
neutron_por CNEU Energective CorrectedLOGS 2683.4592000000002 3015.2340000000004 2178
porosity POR Energective CorrectedLOGS 524.4084 3010.2048 13664
tvdss SS Energective CorrectedLOGS 211.2264 3020.2632000000003 18433
vshale VSH Energective CorrectedLOGS 518.4648000000001 3010.2048 16351
vshale VSGR Energective CorrectedLOGS 518.4648000000001 3010.2048 16351
water_sat SW Energective CorrectedLOGS 524.4084 3010.2048 13664
water_sat_xo SXO Energective CorrectedLOGS 524.4084 3010.2048 13664

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/21- 4 0 -- -- --
211/21- 4A 95 3022.397 2995.984 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_21- 4A\WELL_PATH\WDD_QC\211_21-_4A_wdd_WDD_FILE_1672433_DATACO_MAPPED.csv

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