Well Data Manager / Well Summary / 211/28a-H18

211/28a-H18

Decommissioned

Well Header

Well No
211/28a-H18
NSTA DEN No
2825
Well Name
--
Drill Seq No
18
Quadrant / Block
211 / 28 a
Surface Location
61.068616, 1.401094
Source Datum
ED50
Subsea Well
No
Platform
H
Slot No
1
Operator
CNR INTERNATIONAL (U.K.) LIMITED
Original Operator
CONOCO UK Ltd
Sub Area Operator
CNR INTERNATIONAL (U.K.) LIMITED
Licence No
P204
Licence Type
Production
Spud Date
1985-11-05
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

211/28a-H18 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
Y
Well Seq
WB1
Datum Type
Kelly Bushing
Datum Elev (m)
25.603
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
4735.924
TD TVDSS (m)
3111.094
TD Datum Depth (m)
25.603
TD Datum Type
Kelly Bushing
Spud Date
1985-11-05
TD Reached
1985-12-07
Completion Date
1986-01-02
Release Date
1990-01-02
211/28a-H18Y Sidetrack Y parent: 211/28a-H18Z
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
--
Well Seq
WB3
Datum Type
Kelly Bushing
Datum Elev (m)
25.603
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
4709.160
TD TVDSS (m)
3100.426
TD Datum Depth (m)
25.603
TD Datum Type
Kelly Bushing
Spud Date
1986-01-17
TD Reached
1986-01-23
Completion Date
1986-02-03
Release Date
1990-02-03
211/28a-H18Z Sidetrack Z parent: 211/28a-H18
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
--
Primary Target
A
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
19.507
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
4721.657
TD TVDSS (m)
3104.998
TD Datum Depth (m)
19.507
TD Datum Type
Kelly Bushing
Spud Date
1986-01-02
TD Reached
1986-01-12
Completion Date
1986-01-14
Release Date
1990-01-14

Formation Tops (34)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/28a-H18 Unknown 174.000 148.397 BGS LithoStrat Upper
Unknown 4420.000 4394.397 BGS LithoStrat Upper
Unknown 4449.000 4423.397 BGS LithoStrat Upper
Kimmeridge Clay 4534.000 4508.397 BGS LithoStrat Upper
Heather Mesozoic 4554.000 4528.397 BGS LithoStrat Upper
Upper Middle Shaly Unit 4566.000 4540.397 BGS LithoStrat Upper
Mid Shale Member 4601.000 4575.397 BGS LithoStrat Upper
Lower Middle Shaly Unit 4608.000 4582.397 BGS LithoStrat Upper
Jurassic Massive Sand 4636.000 4610.397 BGS LithoStrat Upper
Jurassic Mica Sand 4652.000 4626.397 BGS LithoStrat Upper
Jurassic Basal Sand 4673.000 4647.397 BGS LithoStrat Upper
Dunlin Mesozoic 4687.000 4661.397 BGS LithoStrat Upper
211/28a-H18Y Unknown 174.000 148.397 BGS LithoStrat Upper
Unknown 4389.000 4363.397 BGS LithoStrat Upper
Kimmeridge Clay 4513.000 4487.397 BGS LithoStrat Upper
Heather Mesozoic 4530.000 4504.397 BGS LithoStrat Upper
Upper Middle Shaly Unit 4543.000 4517.397 BGS LithoStrat Upper
Mid Shale Member 4578.000 4552.397 BGS LithoStrat Upper
Lower Middle Shaly Unit 4583.000 4557.397 BGS LithoStrat Upper
Jurassic Massive Sand 4613.000 4587.397 BGS LithoStrat Upper
Jurassic Mica Sand 4632.000 4606.397 BGS LithoStrat Upper
Jurassic Basal Sand 4652.000 4626.397 BGS LithoStrat Upper
Dunlin Mesozoic 4666.000 4640.397 BGS LithoStrat Upper
211/28a-H18Z Unknown 174.000 154.493 BGS LithoStrat Upper
Unknown 4435.000 4415.493 BGS LithoStrat Upper
Kimmeridge Clay 4538.000 4518.493 BGS LithoStrat Upper
Heather Mesozoic 4561.000 4541.493 BGS LithoStrat Upper
Upper Middle Shaly Unit 4586.000 4566.493 BGS LithoStrat Upper
Mid Shale Member 4603.000 4583.493 BGS LithoStrat Upper
Lower Middle Shaly Unit 4608.000 4588.493 BGS LithoStrat Upper
Jurassic Massive Sand 4646.000 4626.493 BGS LithoStrat Upper
Jurassic Mica Sand 4666.000 4646.493 BGS LithoStrat Upper
Jurassic Basal Sand 4687.000 4667.493 BGS LithoStrat Upper
Dunlin Mesozoic 4702.000 4682.493 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
211/28a-H18 0 0 0 12 12 0 0 1 0 View
211/28a-H18Y 0 0 0 11 11 0 0 0 0 View
211/28a-H18Z 0 0 0 11 11 0 0 0 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (1)

Wellbore Sample Top MD (m) Base MD (m) Key Lab Results Comments Notes
211/28a-H18 Cuttings 4117.85 4741.16 -- -- including sidetrack .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/28a-H18 4263.39013671875 4744.3642578125 14 0 2026-08-06 11:38:07.271039+00 View Log
211/28a-H18Y 4106.11328125 4719.06591796875 13 0 2026-08-06 11:38:08.332134+00 View Log
211/28a-H18Z 4108.09423828125 4755.64208984375 11 0 2026-08-06 11:38:09.682233+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/28a-H18
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 4418.3808 4710.3792 1917
bulk_density CDEN Energective CorrectedLOGS 4417.6188 4744.3644 2136
caliper CALI OGA Batch Unzipped 4417.1616 4710.3792 1925
caliper CLD Energective CorrectedLOGS 4417.6188 4713.1224 1940
comp_sonic DT OGA Batch Unzipped 4264.152 4710.3792 2929
comp_sonic DTC Energective CorrectedLOGS 4276.8012 4675.6320000000005 2351
deep_resistivity RES_DEP OGA Batch Unzipped 4266.5904 4710.3792 2913
deep_resistivity ILD Energective CorrectedLOGS 4276.4964 4739.030400000001 3036
density_correction CDRH Energective CorrectedLOGS 4417.6188 4744.212 2135
density_correction DENC OGA Batch Unzipped 4418.3808 4710.3792 1917
gamma_ray GR OGA Batch Unzipped 4266.5904 4710.3792 2913
gamma_ray GRI Energective CorrectedLOGS 4263.39 4731.562800000001 3073
med_resistivity RES_MED OGA Batch Unzipped 4266.5904 4710.3792 2913
med_resistivity ILM Energective CorrectedLOGS 4275.582 4740.0972 3049
neutron_por CNEU Energective CorrectedLOGS 4417.6188 4739.7924 2115
pef CPEF Energective CorrectedLOGS 4416.399600000001 4744.3644 2153
porosity PHIE OGA Batch Unzipped 4541.6724 4709.16 1100
shallow_resistivity RES_SLW OGA Batch Unzipped 4266.5904 4710.3792 2913
sp SP Energective CorrectedLOGS 4277.410800000001 4744.3644 3065
tvdss SS Energective CorrectedLOGS 4263.2376 4744.5168 3159
vshale VSGR Energective CorrectedLOGS 4275.4296 4731.410400000001 2993
vshale VSH Energective CorrectedLOGS 4275.4296 4731.410400000001 2993
water_sat SW OGA Batch Unzipped 4541.52 4709.16 1101
211/28a-H18Y
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 4388.5104 4709.16 2105
bulk_density CDEN Energective CorrectedLOGS 4387.9008 4719.066 2174
caliper CLD Energective CorrectedLOGS 4387.9008 4712.5128 2131
caliper CALI OGA Batch Unzipped 244.4496 4709.16 2624
comp_sonic DT OGA Batch Unzipped 4106.8752 4709.16 3953
comp_sonic DTC Energective CorrectedLOGS 4116.6288 4702.4544000000005 3841
deep_resistivity RES_DEP OGA Batch Unzipped 4106.8752 4709.16 3953
deep_resistivity ILD Energective CorrectedLOGS 4152.747600000001 4711.903200000001 3670
density_correction CDRH Energective CorrectedLOGS 4387.9008 4719.066 2174
density_correction DENC OGA Batch Unzipped 4388.5104 4709.16 2105
gamma_ray GR OGA Batch Unzipped 244.4496 4709.16 2562
gamma_ray GRI Energective CorrectedLOGS 4106.1132 4713.4272 3986
med_resistivity ILM Energective CorrectedLOGS 4153.0524000000005 4711.903200000001 3668
med_resistivity RES_MED OGA Batch Unzipped 4106.8752 4709.16 3953
neutron_por CNEU Energective CorrectedLOGS 4387.9008 4713.4272 2137
porosity PHIE OGA Batch Unzipped 4526.432400000001 4678.5276 999
shallow_resistivity RES_SLW OGA Batch Unzipped 4106.8752 4709.16 3953
sp SP Energective CorrectedLOGS 4153.0524000000005 4715.256 3690
tvdss SS Energective CorrectedLOGS 4105.9608 4719.218400000001 4025
vshale VSGR Energective CorrectedLOGS 4114.0380000000005 4712.97 3931
vshale VSH Energective CorrectedLOGS 4114.0380000000005 4712.97 3931
water_sat SW OGA Batch Unzipped 4526.280000000001 4678.5276 1000
211/28a-H18Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density DEN OGA Batch Unzipped 4438.1928 4721.656800000001 1861
bulk_density CDEN Energective CorrectedLOGS 4437.4308 4755.642 2089
caliper CALI OGA Batch Unzipped 4438.1928 4721.656800000001 1861
caliper CLD Energective CorrectedLOGS 4437.4308 4745.736 2024
comp_sonic DTC Energective CorrectedLOGS 4108.0944 4732.4772 4054
comp_sonic DT OGA Batch Unzipped 4108.704000000001 4721.656800000001 4023
deep_resistivity ILD Energective CorrectedLOGS 4116.171600000001 4741.7736 4106
deep_resistivity RES_DEP OGA Batch Unzipped 4108.704000000001 4721.656800000001 4023
density_correction CDRH Energective CorrectedLOGS 4437.4308 4755.4896 2087
density_correction DENC OGA Batch Unzipped 4438.1928 4721.656800000001 1861
gamma_ray GRI Energective CorrectedLOGS 4108.0944 4744.8216 4179
gamma_ray GR OGA Batch Unzipped 4108.704000000001 4721.656800000001 4018
med_resistivity ILM Energective CorrectedLOGS 4115.562 4742.8404 4117
med_resistivity RES_MED OGA Batch Unzipped 4108.704000000001 4721.656800000001 4023
neutron_por CNEU Energective CorrectedLOGS 4437.4308 4751.222400000001 2060
shallow_resistivity RES_SLW OGA Batch Unzipped 4108.704000000001 4721.656800000001 4023
sp SP Energective CorrectedLOGS 4157.3196 4753.9656 3914
tvdss SS Energective CorrectedLOGS 4108.0944 4755.794400000001 4251
vshale VSGR Energective CorrectedLOGS 4121.3532000000005 4744.8216 4092
vshale VSH Energective CorrectedLOGS 4121.3532000000005 4744.8216 4092

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/28a-H18 0 -- -- --
211/28a-H18Y 0 -- -- --
211/28a-H18Z 0 -- -- --

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