Well Data Manager / Well Summary / 21/23a- 9

21/23a- 9

Decommissioned

Well Header

Well No
21/23a- 9
NSTA DEN No
15524
Well Name
--
Drill Seq No
9
Quadrant / Block
21 / 23 a
Surface Location
57.237555, 0.460476
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
ONE-DYAS UK LIMITED
Original Operator
--
Sub Area Operator
ONE-DYAS UK LIMITED
Licence No
P1220
Licence Type
Production
Spud Date
2006-08-08
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (7)

21/23a- 9 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
EE
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
1877.568
TD TVDSS (m)
1577.340
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-08-08
TD Reached
2006-08-16
Completion Date
2006-08-19
Release Date
2009-08-19
21/23a- 9U Sidetrack U parent: 21/23a- 9V
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
U
Well Seq
WB7
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
1776.984
TD TVDSS (m)
1473.098
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-09-25
TD Reached
2006-09-29
Completion Date
2006-10-10
Release Date
2009-10-10
21/23a- 9V Sidetrack V parent: 21/23a- 9W
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
V
Well Seq
WB6
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
2098.548
TD TVDSS (m)
1570.025
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-09-06
TD Reached
2006-09-09
Completion Date
2006-09-25
Release Date
2009-09-25
21/23a- 9W Sidetrack W parent: 21/23a- 9X
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
SW
Well Seq
WB5
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
2031.492
TD TVDSS (m)
1505.102
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-08-31
TD Reached
2006-09-04
Completion Date
2006-09-06
Release Date
2009-09-06
21/23a- 9X Sidetrack X parent: 21/23a- 9Y
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
E
Well Seq
WB4
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
1832.458
TD TVDSS (m)
1654.759
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-08-28
TD Reached
2006-08-29
Completion Date
2006-08-31
Release Date
2009-08-31
21/23a- 9Y Sidetrack Y parent: 21/23a- 9Z
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
SE
Well Seq
WB3
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
1965.960
TD TVDSS (m)
1540.459
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-08-22
TD Reached
2006-08-26
Completion Date
2006-08-28
Release Date
2009-08-28
21/23a- 9Z Sidetrack Z parent: 21/23a- 9
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
EEZ
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
85.65
TD MD (m)
1621.536
TD TVDSS (m)
1561.186
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2006-08-19
TD Reached
2006-08-20
Completion Date
2006-08-22
Release Date
2009-08-22

Formation Tops (53)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/23a- 9 Nordland Cenozoic 113.000 85.568 BGS LithoStrat Upper
Nordland Cenozoic 838.000 810.568 BGS LithoStrat Upper
Nordland Cenozoic 862.000 834.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1039.000 1011.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1422.000 1394.568 BGS LithoStrat Upper
Tay Sands 1785.000 1757.568 BGS LithoStrat Upper
Sele Mesozoic 1811.000 1783.568 BGS LithoStrat Upper
21/23a- 9U Unknown 113.000 85.568 BGS LithoStrat Upper
Nordland Cenozoic 869.000 841.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1054.000 1026.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1437.000 1409.568 BGS LithoStrat Upper
Tay Sands 1751.000 1723.568 BGS LithoStrat Upper
21/23a- 9V Unknown 113.000 85.568 BGS LithoStrat Upper
Nordland Cenozoic 895.000 867.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1063.000 1035.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1512.000 1484.568 BGS LithoStrat Upper
Tay Sands 1889.000 1861.568 BGS LithoStrat Upper
Tay Sands 1896.000 1868.568 BGS LithoStrat Upper
Tay Sands 1943.000 1915.568 BGS LithoStrat Upper
Balder Cenozoic 1992.000 1964.568 BGS LithoStrat Upper
Sele Mesozoic 1994.000 1966.568 BGS LithoStrat Upper
Lista Mesozoic 1998.000 1970.568 BGS LithoStrat Upper
21/23a- 9W Unknown 113.000 85.568 BGS LithoStrat Upper
Nordland Cenozoic 939.000 911.568 BGS LithoStrat Upper
Nordland Cenozoic 959.000 931.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1065.000 1037.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1391.000 1363.568 BGS LithoStrat Upper
Tay Sands 1952.000 1924.568 BGS LithoStrat Upper
Balder Cenozoic 1997.000 1969.568 BGS LithoStrat Upper
Sele Mesozoic 2000.000 1972.568 BGS LithoStrat Upper
21/23a- 9X Unknown 113.000 85.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1143.000 1115.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1164.000 1136.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1449.000 1421.568 BGS LithoStrat Upper
Balder Cenozoic 1663.000 1635.568 BGS LithoStrat Upper
Sele Mesozoic 1665.000 1637.568 BGS LithoStrat Upper
Lista Mesozoic 1674.000 1646.568 BGS LithoStrat Upper
Maureen Mesozoic 1797.000 1769.568 BGS LithoStrat Upper
Chalk Mesozoic 1806.000 1778.568 BGS LithoStrat Upper
21/23a- 9Y Unknown 113.000 85.568 BGS LithoStrat Upper
Nordland Cenozoic 850.000 822.568 BGS LithoStrat Upper
Nordland Cenozoic 888.000 860.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1065.000 1037.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1529.000 1501.568 BGS LithoStrat Upper
Tay Sands 1894.000 1866.568 BGS LithoStrat Upper
Sele Mesozoic 1897.000 1869.568 BGS LithoStrat Upper
Lista Mesozoic 1910.000 1882.568 BGS LithoStrat Upper
21/23a- 9Z Unknown 113.000 85.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1082.000 1054.568 BGS LithoStrat Upper
Lark Formation Cenozoic 1109.000 1081.568 BGS LithoStrat Upper
Horda Formation Cenozoic 1361.000 1333.568 BGS LithoStrat Upper
Tay Sands 1539.000 1511.568 BGS LithoStrat Upper
Sele Mesozoic 1560.000 1532.568 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
21/23a- 9 0 0 0 7 7 1 0 0 0 View
21/23a- 9U 0 0 0 5 5 1 0 0 1 View
21/23a- 9V 0 0 0 10 10 1 0 0 1 View
21/23a- 9W 0 0 0 8 8 1 0 0 0 View
21/23a- 9X 0 0 0 9 9 1 0 0 0 View
21/23a- 9Y 0 0 0 8 8 1 0 0 0 View
21/23a- 9Z 0 0 0 6 6 1 0 0 0 View

Hydrocarbon Occurrence (3)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
21/23a- 9U Oil OW TYSD 1750.7712000000001 -- 26 m thick
21/23a- 9U DST DST 1 -- 1754.4 1777.0 Label / Alba
21/23a- 9V DST DST 1 -- 1907.4 1934.9 Label / Alba

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
21/23a- 9 0 -- -- --
21/23a- 9U 0 -- -- --
21/23a- 9V 0 -- -- --
21/23a- 9W 0 -- -- --
21/23a- 9X 0 -- -- --
21/23a- 9Y 0 -- -- --
21/23a- 9Z 0 -- -- --

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