Well Data Manager / Well Summary / 21/04b- 6

21/04b- 6

Decommissioned

Well Header

Well No
21/04b- 6
NSTA DEN No
13783
Well Name
--
Drill Seq No
6
Quadrant / Block
21 / 4 b
Surface Location
57.889598, 0.668085
Source Datum
ED50
Subsea Well
Unknown
Platform
--
Slot No
--
Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Original Operator
--
Sub Area Operator
NEO NEXT+ ENERGY E&P NORTH SEA UK LIMITED
Licence No
P1104
Licence Type
Production
Spud Date
2005-11-30
Source File
nsta_feature_service
Imported
2026-05-22 15:28

Wellbores (1)

21/04b- 6 Original
Abandoned Phase 3 View Log Interpreted Data Survey
Current Intent
Exploration
Original Intent
Exploration
Flow Class
Dry Hole
Dev Type
--
Convention
--
Primary Target
F
Well Seq
WB1
Datum Type
Rotary Table
Datum Elev (m)
27.432
Ground Elev (m)
--
Water Depth (m)
137.77
TD MD (m)
3649.980
TD TVDSS (m)
3620.719
TD Datum Depth (m)
27.432
TD Datum Type
Rotary Table
Spud Date
2005-11-30
TD Reached
2005-12-18
Completion Date
2005-12-22
Release Date
2008-12-22

Formation Tops (22)

Wellbore Formation Era MD (m) TVDSS (m) Provider
21/04b- 6 Horda Cenozoic 165.000 137.568 Lloyds Register
Stronsay Cenozoic 165.000 137.568 Lloyds Register
Moray Mesozoic 2079.000 2051.162 Lloyds Register
Balder Cenozoic 2079.000 2051.162 Lloyds Register
Sele Mesozoic 2115.000 2087.150 Lloyds Register
Forties Sandstone Mesozoic 2198.000 2170.146 Lloyds Register
Lista Mesozoic 2253.000 2225.145 Lloyds Register
Balmoral Sandstone Cenozoic 2253.000 2225.145 Lloyds Register
Montrose Mesozoic 2253.000 2225.145 Lloyds Register
Glamis Tuff 2506.000 2478.143 Lloyds Register
Andrew Sandstone Cenozoic 2527.000 2499.143 Lloyds Register
Maureen Sandstone Mesozoic 2577.000 2549.143 Lloyds Register
Maureen Mesozoic 2577.000 2549.143 Lloyds Register
Maureen Reworked Unit Mesozoic 2629.000 2601.142 Lloyds Register
Ekofisk Mesozoic 2699.000 2671.141 Lloyds Register
Chalk Mesozoic 2699.000 2671.141 Lloyds Register
Upper Cretaceous Chalk Mesozoic 2755.000 2727.141 Lloyds Register
Rodby Mesozoic 3335.000 3306.571 Lloyds Register
Cromer Knoll Mesozoic 3335.000 3306.571 Lloyds Register
Sola 3447.000 3418.360 Lloyds Register
Britannia Sandstone Mesozoic 3481.000 3452.302 Lloyds Register
Valhall Mesozoic 3595.000 3566.070 Lloyds Register

Lithology Intervals

21/04b- 6 Curve: SANDCOUNT 85 intervals  ·  MD 1257.300 – 3594.964 m G:/NSTA_BigFiles/NSTA_Packages/Lloyds_Register/NSTA Centr...
Sandstone (68)
Limestone (17)

Interpreted Data Inventory (LR / WellStrat)

Open Interpreted Data Log
Wellbore Groups Formations Members Strat Intervals Tops HC Occ Core Cuttings DSTs
21/04b- 6 5 11 6 17 22 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)

Wellbore Depth Start (m) Depth Stop (m) Typed Curves Auto-scaled Ingested
21/04b- 6 933.6024169921875 3636.111572265625 5 0 2026-08-06 17:21:26.311429+00 View Log

Source LAS Manifest (Best Curve per Type)

Open full Manifest browser
21/04b- 6
Curve Type Best Mnemonic Source Depth Start (m) Depth Stop (m) Samples
bulk_density RHOB CGG Digital Well Logs 2848.6608 3618.4332000000004 5052
caliper CALI CGG Digital Well Logs 2846.9844000000003 3580.0284 4811
density_correction DRHO CGG Digital Well Logs 2848.6608 3580.0284 4800
gamma_ray GRCA CGG Digital Well Logs 933.6024000000001 3636.1116 17734
neutron_por NLIM CGG Digital Well Logs 2847.1368 3616.7568 5051

Survey Inventory (Deviation)

Open full Survey detail
Wellbore Stations Max MD (m) Max TVDSS (m) Survey File
21/04b- 6 80 3649.980 3620.921 D:\BigSpatial\nsta_raw\CGG_Deviation\21-4b-6 29354w_CGG-Deviation.xlsx

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