Well Data Manager / Well Summary / 204/21- 1

204/21- 1

Decommissioned

Well Header

Well No
204/21- 1
NSTA DEN No
11097
Well Name
--
Drill Seq No
1
Quadrant / Block
204 / 21
Surface Location
60.263022, -4.929686
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
SHELL GLOBAL LNG LIMITED
Original Operator
--
Sub Area Operator
SHELL GLOBAL LNG LIMITED
Licence No
P1027
Licence Type
Production
Spud Date
2004-08-22
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

204/21- 1 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Gas Show
Dev Type
--
Convention
--
Primary Target
A
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
24.994
Ground Elev (m)
--
Water Depth (m)
861.36
TD MD (m)
3753.002
TD TVDSS (m)
3728.009
TD Datum Depth (m)
24.994
TD Datum Type
Rotary Table
Spud Date
2004-08-22
TD Reached
2004-09-18
Completion Date
2004-09-22
Release Date
2008-09-22

Formation Tops (1)

Wellbore Formation Era MD (m) TVDSS (m) Provider
204/21- 1 Shetland Mesozoic 3532.000 3506.416 Ternan Atlantic Margin

Lithology Intervals

204/21- 1 Curve: SANDCOUNT 195 intervals  ·  MD 1834.439 – 3685.337 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/WoS_ArcGIS...
Sandstone (170)
Limestone (9)
Coal (8)
Tuff (8)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
204/21- 1 4 6 9 16 1 3 0 0 0 View

Hydrocarbon Occurrence (1)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
204/21- 1 Gas shows GS Vaila Formation 2427.5 -- 653 m thick

Rock Samples (0)

No cuttings, core, or plug samples recorded for this well.

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
204/21- 1 861.4572143554688 3740.90283203125 12 0 2026-08-06 20:37:03.099086+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
204/21- 1
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DENS UKCS JDWL 30th Round 1821.882 3725.8152 12199
caliper CALI UKCS JDWL 30th Round 1804.9656 3728.8632 12419
comp_sonic DTC UKCS JDWL 30th Round 1808.4708 3740.9028 12610
deep_resistivity RDEP UKCS JDWL 30th Round 1821.882 3726.882 12209
deep_resistivity P40H UKCS JDWL 30th Round 1822.9488 3734.9592 11964
density_correction DENC UKCS JDWL 30th Round 1821.882 3725.8152 12200
gamma_ray GR UKCS JDWL 30th Round 861.4572 3721.8528 18765
med_resistivity P28H UKCS JDWL 30th Round 1822.9488 3734.9592 11964
med_resistivity P34H UKCS JDWL 30th Round 1822.9488 3734.9592 11964
med_resistivity RMED UKCS JDWL 30th Round 1821.882 3726.882 12209
micro_resistivity RMIC UKCS JDWL 30th Round 1821.882 3726.882 12209
neutron_por NEUT UKCS JDWL 30th Round 1808.928 3725.8152 12259
pef PEF UKCS JDWL 30th Round 1811.976 3725.8152 12265
shallow_resistivity RSHAL UKCS JDWL 30th Round 1821.882 3726.882 12209
shallow_resistivity P22H UKCS JDWL 30th Round 1822.9488 3734.9592 11964
shallow_resistivity P16H UKCS JDWL 30th Round 1822.9488 3734.9592 11964
shear_sonic DTS UKCS JDWL 30th Round 1822.9488 3740.9028 12389
sp SP UKCS JDWL 30th Round 1808.928 3726.882 12363

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
204/21- 1 93 3753.000 3727.321 G:\NSTA_BigFiles\NSTA_Packages\UKCS_JDWL_30thRound\WOS\204_21-1_DEVIATION_SURVEY_QC.xlsm

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