Well Data Manager / Well Summary / 20/04a- 10

20/04a- 10

Decommissioned

Well Header

Well No
20/04a- 10
NSTA DEN No
23372
Well Name
--
Drill Seq No
10
Quadrant / Block
20 / 4 a
Surface Location
57.840615, -0.358452
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
CNOOC PETROLEUM EUROPE LIMITED
Original Operator
--
Sub Area Operator
CNOOC PETROLEUM EUROPE LIMITED
Licence No
P1100
Licence Type
Production
Spud Date
2011-07-27
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (3)

20/04a- 10 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
J
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
22.250
Ground Elev (m)
--
Water Depth (m)
105.46
TD MD (m)
3236.976
TD TVDSS (m)
3182.112
TD Datum Depth (m)
22.250
TD Datum Type
Rotary Table
Spud Date
2011-07-27
TD Reached
2011-08-19
Completion Date
2011-08-29
Release Date
2014-08-29
20/04a- 10Y Sidetrack Y parent: 20/04a- 10Z
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Show
Dev Type
--
Convention
--
Primary Target
S
Well Seq
WB3
Datum Type
Rotary Table
Datum Elev (m)
22.250
Ground Elev (m)
--
Water Depth (m)
105.46
TD MD (m)
3977.640
TD TVDSS (m)
3133.649
TD Datum Depth (m)
22.250
TD Datum Type
Rotary Table
Spud Date
2011-10-06
TD Reached
2011-10-21
Completion Date
2011-11-03
Release Date
2014-11-03
20/04a- 10Z Sidetrack Z parent: 20/04a- 10
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
N
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
22.250
Ground Elev (m)
--
Water Depth (m)
105.46
TD MD (m)
4275.125
TD TVDSS (m)
3151.327
TD Datum Depth (m)
22.250
TD Datum Type
Rotary Table
Spud Date
2011-09-01
TD Reached
2011-09-20
Completion Date
2011-10-02
Release Date
2014-10-02

Formation Tops (23)

Wellbore Formation Era MD (m) TVDSS (m) Provider
20/04a- 10 Sele Mesozoic 128.000 105.750 Lloyds Register
Moray Mesozoic 128.000 105.750 Lloyds Register
Lista Mesozoic 1163.000 1140.750 Lloyds Register
Montrose Mesozoic 1163.000 1140.750 Lloyds Register
Balmoral Sandstone Cenozoic 1331.000 1308.750 Lloyds Register
Glamis Tuff 1435.000 1412.750 Lloyds Register
Andrew Sandstone Cenozoic 1583.000 1560.750 Lloyds Register
Maureen Mesozoic 1716.000 1693.750 Lloyds Register
Maureen Sandstone Mesozoic 1725.000 1702.750 Lloyds Register
Ekofisk Mesozoic 1865.000 1842.750 Lloyds Register
Chalk Mesozoic 1865.000 1842.750 Lloyds Register
Upper Cretaceous Chalk Mesozoic 1919.000 1896.750 Lloyds Register
Rodby Mesozoic 2406.000 2383.750 Lloyds Register
Cromer Knoll Mesozoic 2406.000 2383.750 Lloyds Register
Sola 2484.000 2461.750 Lloyds Register
Valhall Mesozoic 2581.000 2558.750 Lloyds Register
Kimmeridge Clay 2814.000 2791.750 Lloyds Register
Humber Mesozoic 2814.000 2791.750 Lloyds Register
Burns Sandstone Mesozoic 2957.000 2934.750 Lloyds Register
Heather Mesozoic 3050.000 3027.750 Lloyds Register
Sgiath Mesozoic 3176.000 3153.750 Lloyds Register
Heron Palaeozoic 3199.000 3176.750 Lloyds Register
Smith Bank Mesozoic 3199.000 3176.750 Lloyds Register

Lithology Intervals

20/04a- 10 Curve: SANDCOUNT 131 intervals  ·  MD 1074.268 – 3212.287 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (109)
Limestone (20)
Coal (2)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
20/04a- 10 6 12 5 23 23 1 0 0 0 View
20/04a- 10Y 0 0 0 25 0 1 0 0 0 View
20/04a- 10Z 0 0 0 24 0 1 0 0 0 View

Hydrocarbon Occurrence (0)

No hydrocarbon shows or DSTs recorded for this well.

Rock Samples (0)

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

Wireline Log Inventory (Ingested Curves)

No wireline log curves ingested for this well.

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser

No scanned LAS source files matched to this well.

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
20/04a- 10 0 -- -- --
20/04a- 10Y 0 -- -- --
20/04a- 10Z 0 -- -- --

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