Well Data Manager / Well Summary / 211/28a-H20

211/28a-H20

H20/09

Decommissioned

Well Header

Well No
211/28a-H20
NSTA DEN No
2929
Well Name
H20/09
Drill Seq No
20
Quadrant / Block
211 / 28 a
Surface Location
61.068608, 1.401049
Source Datum
ED50
Subsea Well
No
Platform
H
Slot No
9
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
1986-04-12
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

211/28a-H20 Original parent: 211/28a-H20J
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
Conventional
Primary Target
U
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
25.603
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
4227.881
TD TVDSS (m)
3016.606
TD Datum Depth (m)
25.603
TD Datum Type
Kelly Bushing
Spud Date
1986-04-12
TD Reached
1986-04-25
Completion Date
1986-05-02
Release Date
1990-05-02
211/28a-H20J Sidetrack J
Abandoned Phase 3 Survey
Current Intent
Development
Original Intent
Development
Flow Class
--
Dev Type
Other
Convention
Conventional
Primary Target
--
Well Seq
--
Datum Type
Rotary Table
Datum Elev (m)
25.603
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
--
TD TVDSS (m)
--
TD Datum Depth (m)
--
TD Datum Type
--
Spud Date
1986-03-29
TD Reached
1986-04-10
Completion Date
--
Release Date
1990-04-10
211/28a-H20Z Sidetrack Z parent: 211/28a-H20
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Development
Original Intent
Development
Flow Class
Oil Well
Dev Type
Producer
Convention
Conventional
Primary Target
U
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
25.603
Ground Elev (m)
--
Water Depth (m)
148.13
TD MD (m)
4261.104
TD TVDSS (m)
3010.814
TD Datum Depth (m)
25.603
TD Datum Type
Kelly Bushing
Spud Date
1986-05-01
TD Reached
1986-05-04
Completion Date
1988-09-07
Release Date
1992-09-07

Formation Tops (14)

Wellbore Formation Era MD (m) TVDSS (m) Provider
211/28a-H20 Unknown 174.000 148.397 BGS LithoStrat Upper
Unknown 4084.000 4058.397 BGS LithoStrat Upper
Kimmeridge Clay 4112.000 4086.397 BGS LithoStrat Upper
Heather Mesozoic 4146.000 4120.397 BGS LithoStrat Upper
Brent Mesozoic 4157.000 4131.397 BGS LithoStrat Upper
211/28a-H20Z Unknown 174.000 148.397 BGS LithoStrat Upper
Unknown 4023.000 3997.397 BGS LithoStrat Upper
Kimmeridge Clay 4108.000 4082.397 BGS LithoStrat Upper
Heather Mesozoic 4136.000 4110.397 BGS LithoStrat Upper
Lower Middle Shaly Unit 4141.000 4115.397 BGS LithoStrat Upper
Jurassic Massive Sand 4165.000 4139.397 BGS LithoStrat Upper
Jurassic Mica Sand 4178.000 4152.397 BGS LithoStrat Upper
Jurassic Basal Sand 4195.000 4169.397 BGS LithoStrat Upper
Dunlin Mesozoic 4208.000 4182.397 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-H20 0 0 0 5 5 0 2 1 0 View
211/28a-H20J 0 0 0 0 0 0 0 0 0
211/28a-H20Z 0 0 0 9 9 0 0 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
211/28a-H20 Cuttings 3941.06 4255.01 -- -- in as 211/28 -H20 / includes sidetrack .
211/28a-H20 Core #1 4172.71 4192.28 -- -- came in as 211/28A H20/09Z .
211/28a-H20 Core #2 4193.44 4216.3 -- -- .

Wireline Log Inventory (Ingested Curves)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
211/28a-H20Z 3920.794921875 4268.57177734375 13 0 2026-08-06 11:38:12.061009+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
211/28a-H20Z
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density CDEN Energective CorrectedLOGS 4021.5312000000004 4268.5716 1622
bulk_density DEN OGA Batch Unzipped 4022.1408 4235.5008 1401
caliper CALI OGA Batch Unzipped 4022.1408 4235.5008 1401
caliper CLD Energective CorrectedLOGS 4021.5312000000004 4263.2376 1587
comp_sonic DT OGA Batch Unzipped 3921.4044000000004 4235.5008 2062
comp_sonic DTC Energective CorrectedLOGS 3935.4252 4255.008 2098
deep_resistivity ILD Energective CorrectedLOGS 3935.4252 4264.3044 2159
deep_resistivity RES_DEP OGA Batch Unzipped 3921.4044000000004 4235.5008 2062
density_correction DENC OGA Batch Unzipped 4022.1408 4235.5008 1401
density_correction CDRH Energective CorrectedLOGS 4021.5312000000004 4268.5716 1622
gamma_ray GR OGA Batch Unzipped 3921.4044000000004 4235.5008 2062
gamma_ray GRI Energective CorrectedLOGS 3920.7948 4265.3712000000005 2262
med_resistivity RES_MED OGA Batch Unzipped 3921.4044000000004 4235.5008 2062
med_resistivity ILM Energective CorrectedLOGS 3935.4252 4267.2 2178
neutron_por CNEU Energective CorrectedLOGS 4021.5312000000004 4263.8472 1591
porosity PHIE OGA Batch Unzipped 4130.04 4221.4800000000005 601
shallow_resistivity RES_SLW OGA Batch Unzipped 3921.4044000000004 4235.5008 2062
sp SP Energective CorrectedLOGS 3936.9492 4268.5716 2177
tvdss SS Energective CorrectedLOGS 3920.6424 4268.724 2285
vshale VSGR Energective CorrectedLOGS 3934.206 4264.7616 2170
vshale VSH Energective CorrectedLOGS 3934.206 4264.7616 2170
water_sat SW OGA Batch Unzipped 4130.04 4221.4800000000005 601

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
211/28a-H20 0 -- -- --
211/28a-H20J 0 -- -- --
211/28a-H20Z 0 -- -- --

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