Well Data Manager / Well Summary / 211/18-A31

211/18-A31

Present

Well Header

Well No
211/18-A31
NSTA DEN No
1640
Well Name
--
Drill Seq No
31
Quadrant / Block
211 / 18
Surface Location
61.362691, 1.577578
Source Datum
ED50
Subsea Well
Unknown
Platform
A
Slot No
A-34
Operator
ENQUEST HEATHER LIMITED
Original Operator
--
Sub Area Operator
ENQUEST HEATHER LIMITED
Licence No
P236
Licence Type
Production
Spud Date
1981-02-08
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

211/18-A31 Original
Abandoned Phase 2 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
--
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
45.110
Ground Elev (m)
--
Water Depth (m)
165.81
TD MD (m)
3170.225
TD TVDSS (m)
1954.378
TD Datum Depth (m)
44.958
TD Datum Type
Kelly Bushing
Spud Date
1981-02-08
TD Reached
1981-03-14
Completion Date
2015-04-19
Release Date
2019-04-19

Formation Tops (13)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/18-A31 Unknown 2865.000 2819.890 BGS LithoStrat Upper
Unknown 2911.000 2865.890 BGS LithoStrat Upper
Red Claystone 2924.000 2878.890 BGS LithoStrat Upper
Basal Limestone Palaeozoic 2933.000 2887.890 BGS LithoStrat Upper
Kimmeridge Clay 2951.000 2905.890 BGS LithoStrat Upper
Heather Mesozoic 2967.000 2921.890 BGS LithoStrat Upper
Brent Mesozoic 2992.000 2946.890 BGS LithoStrat Upper
Brent Mesozoic 3037.000 2991.890 BGS LithoStrat Upper
Brent Mesozoic 3066.000 3020.890 BGS LithoStrat Upper
Brent Mesozoic 3087.000 3041.890 BGS LithoStrat Upper
Brent Mesozoic 3113.000 3067.890 BGS LithoStrat Upper
Brent Mesozoic 3125.000 3079.890 BGS LithoStrat Upper
Drake Mesozoic 3151.000 3105.890 BGS LithoStrat Upper

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
211/18-A31 0 0 0 13 13 0 8 0 0 View

Hydrocarbon Occurrence (5)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
211/18-A31 Oil shows OS Heather Formation 2967.228 -- 25 m thick
211/18-A31 Oil shows OS Brent Group 2992.2216000000003 -- 45 m thick
211/18-A31 Oil shows OS Brent Group 3036.7224 -- 29 m thick
211/18-A31 Oil O Brent Group 3065.9832 -- 21 m thick
211/18-A31 Oil O Brent Group 3086.7096 -- 26 m thick

Rock Samples (8)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/18-A31 Core #1 2953.21 2963.88 -- -- well re-boxed (originally curated Aug'81)
211/18-A31 Core #2 2964.79 2982.77 -- -- --
211/18-A31 Core #3 2983.08 3001.37 -- -- --
211/18-A31 Core #4 3001.37 3019.65 -- -- --
211/18-A31 Core #5 3019.65 3035.2 -- -- --
211/18-A31 Core #6 3035.2 3053.49 -- -- --
211/18-A31 Core #7 3053.49 3080.16 -- -- --
211/18-A31 Core #8 3080.31 3101.04 -- -- --

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/18-A31 1895.2464599609375 3174.94921875 9 0 2026-08-06 11:00:50.146193+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/18-A31
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 2864.0532000000003 3175.5588000000002 2045
bulk_density CDEN Energective CorrectedLOGS 2864.0532000000003 3174.9492 2041
caliper CALI OGA Batch Unzipped 2864.0532000000003 3175.5588000000002 2045
caliper CLD Energective CorrectedLOGS 2864.0532000000003 3170.9868 2015
comp_sonic DTC Energective CorrectedLOGS 1903.7808 3159.5568000000003 8241
comp_sonic DT OGA Batch Unzipped 1903.476 3176.7780000000002 8356
deep_resistivity RES_DEP OGA Batch Unzipped 1903.476 3176.7780000000002 8356
deep_resistivity ILD Energective CorrectedLOGS 1903.0188 3168.0912000000003 8302
density_correction DENC OGA Batch Unzipped 2864.0532000000003 3175.5588000000002 2045
density_correction CDRH Energective CorrectedLOGS 2864.0532000000003 3174.7968 2040
gamma_ray GR OGA Batch Unzipped 1895.2464 3176.7780000000002 8410
gamma_ray GRI Energective CorrectedLOGS 1895.2464 3167.9388000000004 8352
med_resistivity RES_MED OGA Batch Unzipped 1903.476 3176.7780000000002 8356
med_resistivity ILM Energective CorrectedLOGS 1903.0188 3169.1580000000004 8309
neutron_por CNEU Energective CorrectedLOGS 2864.0532000000003 3170.9868 2015
neutron_por NEU OGA Batch Unzipped 2864.0532000000003 3175.5588000000002 2045
pef CPEF Energective CorrectedLOGS 2864.0532000000003 3169.4628000000002 2005
tvdss SS Energective CorrectedLOGS 1895.2464 3175.1016 8399

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/18-A31 0 -- -- --

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