211/12a- 20

Present

Well Header

Well No
211/12a- 20
NSTA DEN No
5465
Well Name
--
Drill Seq No
20
Quadrant / Block
211 / 12 a
Surface Location
61.630528, 1.279743
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
4
Operator
ENQUEST HEATHER LIMITED
Original Operator
--
Sub Area Operator
ENQUEST HEATHER LIMITED
Licence No
P193
Licence Type
Production
Spud Date
1995-02-21
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

211/12a- 20 Original
Abandoned Phase 2 Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
LW2
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
188.00
TD MD (m)
1023.000
TD TVDSS (m)
834.000
TD Datum Depth (m)
0.000
TD Datum Type
Mean Sea Level
Spud Date
1995-02-21
TD Reached
1995-04-06
Completion Date
1995-04-09
Release Date
1999-04-09
211/12a- 20Y Sidetrack Y parent: 211/12a- 20Z
Plugged Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
LW2
Well Seq
WB3
Datum Type
Kelly Bushing
Datum Elev (m)
26.000
Ground Elev (m)
--
Water Depth (m)
188.00
TD MD (m)
5020.000
TD TVDSS (m)
3007.600
TD Datum Depth (m)
26.000
TD Datum Type
Kelly Bushing
Spud Date
1995-06-19
TD Reached
1995-07-07
Completion Date
1995-07-24
Release Date
1999-07-24
211/12a- 20Z Sidetrack Z parent: 211/12a- 20
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
LW2
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
26.300
Ground Elev (m)
--
Water Depth (m)
188.00
TD MD (m)
4980.000
TD TVDSS (m)
4791.000
TD Datum Depth (m)
26.300
TD Datum Type
Kelly Bushing
Spud Date
1995-04-04
TD Reached
1995-05-30
Completion Date
1995-06-19
Release Date
1999-06-19

Formation Tops (0)

No formation tops ingested for this well.

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
211/12a- 20 0 0 0 0 0 0 0 0 0
211/12a- 20Y 0 0 0 0 0 0 0 0 0
211/12a- 20Z 0 0 0 0 0 0 3 0 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (3)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/12a- 20Z Core #1 4944.8 4962.1 -- -- --
211/12a- 20Z Core #2 4962.3 4974.25 -- -- --
211/12a- 20Z Core #3 4976.0 4980.5 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/12a- 20Z 4460.443359375 4933.0625 2 0 2026-08-06 10:43:57.389855+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/12a- 20Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
gamma_ray GRLW Energective CorrectedLOGS 4460.443200000001 4933.062452880001 3782
tvdss SS Energective CorrectedLOGS 4460.443200000001 4933.1874513600005 3783
vshale VSGR Energective CorrectedLOGS 4462.81817112 4932.9374544 3762
vshale VSH Energective CorrectedLOGS 4462.81817112 4932.9374544 3762

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/12a- 20 191 1402.994 789.695 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_12a- 20\WELL_PATH\WDD_QC\211_12a-_20_wdd_WDD_FILE_1683566_DATACO_MAPPED.csv
211/12a- 20Y 380 5020.000 2812.807 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_12a- 20Y\WELL_PATH\WDD_QC\211_12a-_20Y_wdd_WDD_FILE_1683567_DATACO_MAPPED.csv
211/12a- 20Z 378 4980.000 2753.070 G:\NSTA_BigFiles\OGA_Batch_Unzipped\UK_211\211_12a- 20Z\WELL_PATH\WDD_QC\211_12a-_20Z_wdd_WDD_FILE_1683568_DATACO_MAPPED.csv

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