Well Data Manager / Well Summary / 48/21a- 4

48/21a- 4

Present

Well Header

Well No
48/21a- 4
NSTA DEN No
19007
Well Name
--
Drill Seq No
4
Quadrant / Block
48 / 21 a
Surface Location
53.289235, 1.109188
Source Datum
ED50
Subsea Well
Yes
Platform
--
Slot No
--
Operator
PERENCO NORTH SEA LIMITED
Original Operator
--
Sub Area Operator
PERENCO NORTH SEA LIMITED
Licence No
P1061
Licence Type
Production
Spud Date
2008-02-19
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (2)

48/21a- 4 Original
Abandoned Phase 1 Interpreted Data Survey
Current Intent
Appraisal
Original Intent
Appraisal
Flow Class
Gas Well
Dev Type
--
Convention
--
Primary Target
D
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
40.843
Ground Elev (m)
--
Water Depth (m)
24.08
TD MD (m)
1655.064
TD TVDSS (m)
489.510
TD Datum Depth (m)
40.843
TD Datum Type
Rotary Table
Spud Date
2008-02-19
TD Reached
2008-03-16
Completion Date
2008-03-21
Release Date
2011-03-21
48/21a- 4Z Sidetrack Z parent: 48/21a- 4
Plugged Interpreted Data Survey
Current Intent
Development
Original Intent
Appraisal
Flow Class
Gas Well
Dev Type
Producer
Convention
--
Primary Target
D
Well Seq
WB2
Datum Type
Rotary Table
Datum Elev (m)
40.843
Ground Elev (m)
--
Water Depth (m)
24.08
TD MD (m)
2929.128
TD TVDSS (m)
2248.814
TD Datum Depth (m)
40.843
TD Datum Type
Rotary Table
Spud Date
2008-03-21
TD Reached
2008-05-09
Completion Date
2008-05-26
Release Date
2011-05-26

Formation Tops (28)

Wellbore Formation Era MD (m) TVDSS (m) Provider
48/21a- 4Z Chalk Mesozoic 65.000 24.156 BGS LithoStrat Upper
Red Chalk Mesozoic 469.000 428.149 BGS LithoStrat Upper
Speeton Clay 497.000 456.148 BGS LithoStrat Upper
Spilsby Sandstone 629.000 587.732 BGS LithoStrat Upper
Kimmeridge Clay 662.000 620.518 BGS LithoStrat Upper
Corallian Palaeozoic 823.000 780.482 BGS LithoStrat Upper
Oxford Clay 893.000 850.013 BGS LithoStrat Upper
West Sole Mesozoic 928.000 884.784 BGS LithoStrat Upper
Lias Mesozoic 971.000 927.506 BGS LithoStrat Upper
Winterton 1156.000 1111.402 BGS LithoStrat Upper
Triton Anhydrite Mesozoic 1187.000 1142.223 BGS LithoStrat Upper
Dudgeon Saliferous 1280.000 1234.646 BGS LithoStrat Upper
Dowsing Dolomite 1393.000 1346.909 BGS LithoStrat Upper
Bunter Sandstone Mesozoic 1560.000 1512.886 BGS LithoStrat Upper
Bunter Shale Mesozoic 1658.000 1609.834 BGS LithoStrat Upper
Aller Halite Palaeozoic 1949.000 1889.307 BGS LithoStrat Upper
Roter Salzton Palaeozoic 1961.000 1900.085 BGS LithoStrat Upper
Leine Halite Member Palaeozoic 1975.000 1912.503 BGS LithoStrat Upper
Plattendolomit Palaeozoic 2024.000 1954.617 BGS LithoStrat Upper
Grauer Salzton Palaeozoic 2087.000 2006.158 BGS LithoStrat Upper
Deckanhydrit 2088.000 2006.952 BGS LithoStrat Upper
Stassfurt Halite Palaeozoic 2090.000 2008.540 BGS LithoStrat Upper
Basalanhydrit Palaeozoic 2120.000 2031.760 BGS LithoStrat Upper
Hauptdolomit Palaeozoic 2165.000 2064.600 BGS LithoStrat Upper
Werraanhydrit Palaeozoic 2246.000 2116.474 BGS LithoStrat Upper
Zechsteinkalk Palaeozoic 2736.000 2242.637 BGS LithoStrat Upper
Kupferschiefer Palaeozoic 2747.000 2243.829 BGS LithoStrat Upper
Leman Sandstone 2751.000 2244.131 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
48/21a- 4 0 0 0 0 0 1 0 0 0 View
48/21a- 4Z 8 6 0 28 28 1 0 0 1 View

Hydrocarbon Occurrence (2)

Wellbore Category Code Formation / Litho Top MD (m) Base MD (m) Notes
48/21a- 4Z DST DST 1 -- 2710.9 2888.3 Label / Rotliegend
48/21a- 4Z Gas GCW Leman Sandstone Formation 2751.1248 -- 178 m thick

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
48/21a- 4 55 1655.064 1591.382 D:\BigSpatial\nsta_raw\CGG_Deviation\48-21a-4 29903f-CGG-Deviation.xls
48/21a- 4Z 86 2929.128 2249.149 D:\BigSpatial\nsta_raw\CGG_Deviation\48-21a-4Z 29936d-CGG-Deviation.xls

Related Documents

Open Document Search
Searching related documents...