Well Data Manager / Well Summary / 205/21a- 4

205/21a- 4

Decommissioned

Well Header

Well No
205/21a- 4
NSTA DEN No
21186
Well Name
--
Drill Seq No
4
Quadrant / Block
205 / 21 a
Surface Location
60.187613, -3.858352
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
PRAX UPSTREAM LIMITED
Original Operator
--
Sub Area Operator
PRAX UPSTREAM LIMITED
Licence No
P1368
Licence Type
Production
Spud Date
2009-08-08
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

205/21a- 4 Original
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
C
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
25.298
Ground Elev (m)
--
Water Depth (m)
156.67
TD MD (m)
2021.129
TD TVDSS (m)
1780.642
TD Datum Depth (m)
25.298
TD Datum Type
Rotary Table
Spud Date
2009-08-08
TD Reached
2009-09-02
Completion Date
2010-06-09
Release Date
2013-06-09
205/21a- 4Z Sidetrack Z parent: 205/21a- 4
Abandoned Phase 3 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Oil Well
Dev Type
--
Convention
--
Primary Target
Z
Well Seq
WB2
Datum Type
Kelly Bushing
Datum Elev (m)
25.298
Ground Elev (m)
--
Water Depth (m)
156.67
TD MD (m)
1579.474
TD TVDSS (m)
1508.760
TD Datum Depth (m)
25.298
TD Datum Type
Kelly Bushing
Spud Date
2010-06-09
TD Reached
2010-07-07
Completion Date
2010-08-06
Release Date
2013-08-06

Formation Tops (11)

Wellbore Formation Era MD (m) TVDSS (m) Provider
205/21a- 4 Unknown 156.000 130.702 BGS LithoStrat Upper
Jorsalfare Formation Mesozoic 375.000 349.702 BGS LithoStrat Upper
Jorsalfare Formation Mesozoic 495.000 469.702 BGS LithoStrat Upper
Kyrre Formation Mesozoic 1088.000 1062.702 BGS LithoStrat Upper
Commodore Formation Mesozoic 1360.000 1334.702 BGS LithoStrat Upper
Basement 1379.000 1353.702 BGS LithoStrat Upper
205/21a- 4Z Unknown 156.000 130.702 BGS LithoStrat Upper
Jorsalfare Formation Mesozoic 503.000 477.702 BGS LithoStrat Upper
Kyrre Formation Mesozoic 1067.000 1041.702 BGS LithoStrat Upper
Commodore Formation Mesozoic 1372.000 1346.702 BGS LithoStrat Upper
Basement 1382.000 1356.702 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
205/21a- 4 0 0 0 6 6 1 0 0 2 View
205/21a- 4Z 0 0 0 5 5 1 0 0 2 View

Hydrocarbon Occurrence (9)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
205/21a- 4 Oil shows OS Commodore Formation 1360.0176000000001 -- 19 m thick
205/21a- 4 Oil OW BSMT 1379.22 -- 642 m thick
205/21a- 4 DST DST 2 -- 1479.5 1722.43 Not used for labelling, multiple DSTs in same play / Basement
205/21a- 4 DST DST 1 -- 1479.51 2021.13 Label / Basement
205/21a- 4Z Oil shows OS Kyrre Formation 1066.8 -- 305 m thick
205/21a- 4Z Oil shows OS Commodore Formation 1372.2096000000001 -- 9 m thick
205/21a- 4Z Oil OW BSMT 1381.6584 -- 198 m thick
205/21a- 4Z DST DST 1 -- 1390.8 1508.76 Not used for labelling, multiple DSTs in same play / Basement
205/21a- 4Z DST DST 2 -- 1390.82 1579.47 Label / Basement

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
205/21a- 4 0 -- -- --
205/21a- 4Z 0 -- -- --

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